diff options
Diffstat (limited to 'fs')
167 files changed, 2647 insertions, 1854 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index cf62b05e296..7d6c2139891 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -84,7 +84,7 @@ static const match_table_t tokens = { static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) { - char *options; + char *options, *tmp_options; substring_t args[MAX_OPT_ARGS]; char *p; int option = 0; @@ -102,9 +102,12 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) if (!opts) return 0; - options = kstrdup(opts, GFP_KERNEL); - if (!options) + tmp_options = kstrdup(opts, GFP_KERNEL); + if (!tmp_options) { + ret = -ENOMEM; goto fail_option_alloc; + } + options = tmp_options; while ((p = strsep(&options, ",")) != NULL) { int token; @@ -159,8 +162,12 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) break; case Opt_cache: s = match_strdup(&args[0]); - if (!s) - goto fail_option_alloc; + if (!s) { + ret = -ENOMEM; + P9_DPRINTK(P9_DEBUG_ERROR, + "problem allocating copy of cache arg\n"); + goto free_and_return; + } if (strcmp(s, "loose") == 0) v9ses->cache = CACHE_LOOSE; @@ -173,8 +180,12 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) case Opt_access: s = match_strdup(&args[0]); - if (!s) - goto fail_option_alloc; + if (!s) { + ret = -ENOMEM; + P9_DPRINTK(P9_DEBUG_ERROR, + "problem allocating copy of access arg\n"); + goto free_and_return; + } v9ses->flags &= ~V9FS_ACCESS_MASK; if (strcmp(s, "user") == 0) @@ -194,13 +205,11 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) continue; } } - kfree(options); - return ret; +free_and_return: + kfree(tmp_options); fail_option_alloc: - P9_DPRINTK(P9_DEBUG_ERROR, - "failed to allocate copy of option argument\n"); - return -ENOMEM; + return ret; } /** diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h index 3a7560e3586..ed835836e0d 100644 --- a/fs/9p/v9fs_vfs.h +++ b/fs/9p/v9fs_vfs.h @@ -60,3 +60,4 @@ void v9fs_dentry_release(struct dentry *); int v9fs_uflags2omode(int uflags, int extended); ssize_t v9fs_file_readn(struct file *, char *, char __user *, u32, u64); +void v9fs_blank_wstat(struct p9_wstat *wstat); diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 3902bf43a08..74a0461a9ac 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -257,6 +257,23 @@ v9fs_file_write(struct file *filp, const char __user * data, return total; } +static int v9fs_file_fsync(struct file *filp, struct dentry *dentry, + int datasync) +{ + struct p9_fid *fid; + struct p9_wstat wstat; + int retval; + + P9_DPRINTK(P9_DEBUG_VFS, "filp %p dentry %p datasync %x\n", filp, + dentry, datasync); + + fid = filp->private_data; + v9fs_blank_wstat(&wstat); + + retval = p9_client_wstat(fid, &wstat); + return retval; +} + static const struct file_operations v9fs_cached_file_operations = { .llseek = generic_file_llseek, .read = do_sync_read, @@ -266,6 +283,7 @@ static const struct file_operations v9fs_cached_file_operations = { .release = v9fs_dir_release, .lock = v9fs_file_lock, .mmap = generic_file_readonly_mmap, + .fsync = v9fs_file_fsync, }; const struct file_operations v9fs_file_operations = { @@ -276,4 +294,5 @@ const struct file_operations v9fs_file_operations = { .release = v9fs_dir_release, .lock = v9fs_file_lock, .mmap = generic_file_readonly_mmap, + .fsync = v9fs_file_fsync, }; diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 18f74ec4dce..a407fa3388c 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -176,7 +176,7 @@ int v9fs_uflags2omode(int uflags, int extended) * */ -static void +void v9fs_blank_wstat(struct p9_wstat *wstat) { wstat->type = ~0; @@ -1001,44 +1001,6 @@ done: } /** - * v9fs_vfs_readlink - read a symlink's location - * @dentry: dentry for symlink - * @buffer: buffer to load symlink location into - * @buflen: length of buffer - * - */ - -static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer, - int buflen) -{ - int retval; - int ret; - char *link = __getname(); - - if (unlikely(!link)) - return -ENOMEM; - - if (buflen > PATH_MAX) - buflen = PATH_MAX; - - P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_name.name, - dentry); - - retval = v9fs_readlink(dentry, link, buflen); - - if (retval > 0) { - if ((ret = copy_to_user(buffer, link, retval)) != 0) { - P9_DPRINTK(P9_DEBUG_ERROR, - "problem copying to user: %d\n", ret); - retval = ret; - } - } - - __putname(link); - return retval; -} - -/** * v9fs_vfs_follow_link - follow a symlink path * @dentry: dentry for symlink * @nd: nameidata @@ -1230,7 +1192,6 @@ static const struct inode_operations v9fs_dir_inode_operations_ext = { .rmdir = v9fs_vfs_rmdir, .mknod = v9fs_vfs_mknod, .rename = v9fs_vfs_rename, - .readlink = v9fs_vfs_readlink, .getattr = v9fs_vfs_getattr, .setattr = v9fs_vfs_setattr, }; @@ -1253,7 +1214,7 @@ static const struct inode_operations v9fs_file_inode_operations = { }; static const struct inode_operations v9fs_symlink_inode_operations = { - .readlink = v9fs_vfs_readlink, + .readlink = generic_readlink, .follow_link = v9fs_vfs_follow_link, .put_link = v9fs_vfs_put_link, .getattr = v9fs_vfs_getattr, diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 14a86448572..69357c0d989 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -188,7 +188,8 @@ static void v9fs_kill_super(struct super_block *s) P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s); - v9fs_dentry_release(s->s_root); /* clunk root */ + if (s->s_root) + v9fs_dentry_release(s->s_root); /* clunk root */ kill_anon_super(s); diff --git a/fs/affs/affs.h b/fs/affs/affs.h index e511dc621a2..0e40caaba45 100644 --- a/fs/affs/affs.h +++ b/fs/affs/affs.h @@ -106,8 +106,8 @@ struct affs_sb_info { u32 s_last_bmap; struct buffer_head *s_bmap_bh; char *s_prefix; /* Prefix for volumes and assigns. */ - int s_prefix_len; /* Length of prefix. */ char s_volume[32]; /* Volume prefix for absolute symlinks. */ + spinlock_t symlink_lock; /* protects the previous two */ }; #define SF_INTL 0x0001 /* International filesystem. */ diff --git a/fs/affs/namei.c b/fs/affs/namei.c index 960d336ec69..d70bbbac6b7 100644 --- a/fs/affs/namei.c +++ b/fs/affs/namei.c @@ -341,10 +341,13 @@ affs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) p = (char *)AFFS_HEAD(bh)->table; lc = '/'; if (*symname == '/') { + struct affs_sb_info *sbi = AFFS_SB(sb); while (*symname == '/') symname++; - while (AFFS_SB(sb)->s_volume[i]) /* Cannot overflow */ - *p++ = AFFS_SB(sb)->s_volume[i++]; + spin_lock(&sbi->symlink_lock); + while (sbi->s_volume[i]) /* Cannot overflow */ + *p++ = sbi->s_volume[i++]; + spin_unlock(&sbi->symlink_lock); } while (i < maxlen && (c = *symname++)) { if (c == '.' && lc == '/' && *symname == '.' && symname[1] == '/') { diff --git a/fs/affs/super.c b/fs/affs/super.c index 104fdcb3a7f..d41e9673cd9 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -203,7 +203,7 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s switch (token) { case Opt_bs: if (match_int(&args[0], &n)) - return -EINVAL; + return 0; if (n != 512 && n != 1024 && n != 2048 && n != 4096) { printk ("AFFS: Invalid blocksize (512, 1024, 2048, 4096 allowed)\n"); @@ -213,7 +213,7 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s break; case Opt_mode: if (match_octal(&args[0], &option)) - return 1; + return 0; *mode = option & 0777; *mount_opts |= SF_SETMODE; break; @@ -221,8 +221,6 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s *mount_opts |= SF_MUFS; break; case Opt_prefix: - /* Free any previous prefix */ - kfree(*prefix); *prefix = match_strdup(&args[0]); if (!*prefix) return 0; @@ -233,21 +231,21 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s break; case Opt_reserved: if (match_int(&args[0], reserved)) - return 1; + return 0; break; case Opt_root: if (match_int(&args[0], root)) - return 1; + return 0; break; case Opt_setgid: if (match_int(&args[0], &option)) - return 1; + return 0; *gid = option; *mount_opts |= SF_SETGID; break; case Opt_setuid: if (match_int(&args[0], &option)) - return -EINVAL; + return 0; *uid = option; *mount_opts |= SF_SETUID; break; @@ -311,11 +309,14 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) return -ENOMEM; sb->s_fs_info = sbi; mutex_init(&sbi->s_bmlock); + spin_lock_init(&sbi->symlink_lock); if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block, &blocksize,&sbi->s_prefix, sbi->s_volume, &mount_flags)) { printk(KERN_ERR "AFFS: Error parsing options\n"); + kfree(sbi->s_prefix); + kfree(sbi); return -EINVAL; } /* N.B. after this point s_prefix must be released */ @@ -516,14 +517,18 @@ affs_remount(struct super_block *sb, int *flags, char *data) unsigned long mount_flags; int res = 0; char *new_opts = kstrdup(data, GFP_KERNEL); + char volume[32]; + char *prefix = NULL; pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data); *flags |= MS_NODIRATIME; + memcpy(volume, sbi->s_volume, 32); if (!parse_options(data, &uid, &gid, &mode, &reserved, &root_block, - &blocksize, &sbi->s_prefix, sbi->s_volume, + &blocksize, &prefix, volume, &mount_flags)) { + kfree(prefix); kfree(new_opts); return -EINVAL; } @@ -534,6 +539,14 @@ affs_remount(struct super_block *sb, int *flags, char *data) sbi->s_mode = mode; sbi->s_uid = uid; sbi->s_gid = gid; + /* protect against readers */ + spin_lock(&sbi->symlink_lock); + if (prefix) { + kfree(sbi->s_prefix); + sbi->s_prefix = prefix; + } + memcpy(sbi->s_volume, volume, 32); + spin_unlock(&sbi->symlink_lock); if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { unlock_kernel(); diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c index 41782539c90..ee00f08c4f5 100644 --- a/fs/affs/symlink.c +++ b/fs/affs/symlink.c @@ -20,7 +20,6 @@ static int affs_symlink_readpage(struct file *file, struct page *page) int i, j; char c; char lc; - char *pf; pr_debug("AFFS: follow_link(ino=%lu)\n",inode->i_ino); @@ -32,11 +31,15 @@ static int affs_symlink_readpage(struct file *file, struct page *page) j = 0; lf = (struct slink_front *)bh->b_data; lc = 0; - pf = AFFS_SB(inode->i_sb)->s_prefix ? AFFS_SB(inode->i_sb)->s_prefix : "/"; if (strchr(lf->symname,':')) { /* Handle assign or volume name */ + struct affs_sb_info *sbi = AFFS_SB(inode->i_sb); + char *pf; + spin_lock(&sbi->symlink_lock); + pf = sbi->s_prefix ? sbi->s_prefix : "/"; while (i < 1023 && (c = pf[i])) link[i++] = c; + spin_unlock(&sbi->symlink_lock); while (i < 1023 && lf->symname[j] != ':') link[i++] = lf->symname[j++]; if (i < 1023) diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 33baf27fac7..34ddda888e6 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -873,6 +873,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent) brelse(bh); unacquire_priv_sbp: + kfree(befs_sb->mount_opts.iocharset); kfree(sb->s_fs_info); unacquire_none: diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 6f60336c662..8f3d9fd8960 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -353,35 +353,35 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) struct inode *inode; unsigned i, imap_len; struct bfs_sb_info *info; - long ret = -EINVAL; + int ret = -EINVAL; unsigned long i_sblock, i_eblock, i_eoff, s_size; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; + mutex_init(&info->bfs_lock); s->s_fs_info = info; sb_set_blocksize(s, BFS_BSIZE); - bh = sb_bread(s, 0); - if(!bh) + info->si_sbh = sb_bread(s, 0); + if (!info->si_sbh) goto out; - bfs_sb = (struct bfs_super_block *)bh->b_data; + bfs_sb = (struct bfs_super_block *)info->si_sbh->b_data; if (le32_to_cpu(bfs_sb->s_magic) != BFS_MAGIC) { if (!silent) printf("No BFS filesystem on %s (magic=%08x)\n", s->s_id, le32_to_cpu(bfs_sb->s_magic)); - goto out; + goto out1; } if (BFS_UNCLEAN(bfs_sb, s) && !silent) printf("%s is unclean, continuing\n", s->s_id); s->s_magic = BFS_MAGIC; - info->si_sbh = bh; if (le32_to_cpu(bfs_sb->s_start) > le32_to_cpu(bfs_sb->s_end)) { printf("Superblock is corrupted\n"); - goto out; + goto out1; } info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) / @@ -390,7 +390,7 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) imap_len = (info->si_lasti / 8) + 1; info->si_imap = kzalloc(imap_len, GFP_KERNEL); if (!info->si_imap) - goto out; + goto out1; for (i = 0; i < BFS_ROOT_INO; i++) set_bit(i, info->si_imap); @@ -398,15 +398,13 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) inode = bfs_iget(s, BFS_ROOT_INO); if (IS_ERR(inode)) { ret = PTR_ERR(inode); - kfree(info->si_imap); - goto out; + goto out2; } s->s_root = d_alloc_root(inode); if (!s->s_root) { iput(inode); ret = -ENOMEM; - kfree(info->si_imap); - goto out; + goto out2; } info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS; @@ -419,10 +417,8 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) bh = sb_bread(s, info->si_blocks - 1); if (!bh) { printf("Last block not available: %lu\n", info->si_blocks - 1); - iput(inode); ret = -EIO; - kfree(info->si_imap); - goto out; + goto out3; } brelse(bh); @@ -459,11 +455,8 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) printf("Inode 0x%08x corrupted\n", i); brelse(bh); - s->s_root = NULL; - kfree(info->si_imap); - kfree(info); - s->s_fs_info = NULL; - return -EIO; + ret = -EIO; + goto out3; } if (!di->i_ino) { @@ -483,11 +476,17 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) s->s_dirt = 1; } dump_imap("read_super", s); - mutex_init(&info->bfs_lock); return 0; +out3: + dput(s->s_root); + s->s_root = NULL; +out2: + kfree(info->si_imap); +out1: + brelse(info->si_sbh); out: - brelse(bh); + mutex_destroy(&info->bfs_lock); kfree(info); s->s_fs_info = NULL; return ret; diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index 346b6940536..fdd39709917 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -264,6 +264,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) #else set_personality(PER_LINUX); #endif + setup_new_exec(bprm); current->mm->end_code = ex.a_text + (current->mm->start_code = N_TXTADDR(ex)); diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index edd90c49003..fd5b2ea5d29 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -662,27 +662,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (elf_interpreter[elf_ppnt->p_filesz - 1] != '\0') goto out_free_interp; - /* - * The early SET_PERSONALITY here is so that the lookup - * for the interpreter happens in the namespace of the - * to-be-execed image. SET_PERSONALITY can select an - * alternate root. - * - * However, SET_PERSONALITY is NOT allowed to switch - * this task into the new images's memory mapping - * policy - that is, TASK_SIZE must still evaluate to - * that which is appropriate to the execing application. - * This is because exit_mmap() needs to have TASK_SIZE - * evaluate to the size of the old image. - * - * So if (say) a 64-bit application is execing a 32-bit - * application it is the architecture's responsibility - * to defer changing the value of TASK_SIZE until the - * switch really is going to happen - do this in - * flush_thread(). - akpm - */ - SET_PERSONALITY(loc->elf_ex); - interpreter = open_exec(elf_interpreter); retval = PTR_ERR(interpreter); if (IS_ERR(interpreter)) @@ -730,9 +709,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) /* Verify the interpreter has a valid arch */ if (!elf_check_arch(&loc->interp_elf_ex)) goto out_free_dentry; - } else { - /* Executables without an interpreter also need a personality */ - SET_PERSONALITY(loc->elf_ex); } /* Flush all traces of the currently running executable */ @@ -752,7 +728,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) current->flags |= PF_RANDOMIZE; - arch_pick_mmap_layout(current->mm); + + setup_new_exec(bprm); /* Do this so that we can load the interpreter, if need be. We will change some of these later */ diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index c25256a5c5b..18d77297ccc 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -171,6 +171,9 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, #ifdef ELF_FDPIC_PLAT_INIT unsigned long dynaddr; #endif +#ifndef CONFIG_MMU + unsigned long stack_prot; +#endif struct file *interpreter = NULL; /* to shut gcc up */ char *interpreter_name = NULL; int executable_stack; @@ -316,6 +319,11 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, * defunct, deceased, etc. after this point we have to exit via * error_kill */ set_personality(PER_LINUX_FDPIC); + if (elf_read_implies_exec(&exec_params.hdr, executable_stack)) + current->personality |= READ_IMPLIES_EXEC; + + setup_new_exec(bprm); + set_binfmt(&elf_fdpic_format); current->mm->start_code = 0; @@ -377,9 +385,13 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, if (stack_size < PAGE_SIZE * 2) stack_size = PAGE_SIZE * 2; + stack_prot = PROT_READ | PROT_WRITE; + if (executable_stack == EXSTACK_ENABLE_X || + (executable_stack == EXSTACK_DEFAULT && VM_STACK_FLAGS & VM_EXEC)) + stack_prot |= PROT_EXEC; + down_write(¤t->mm->mmap_sem); - current->mm->start_brk = do_mmap(NULL, 0, stack_size, - PROT_READ | PROT_WRITE | PROT_EXEC, + current->mm->start_brk = do_mmap(NULL, 0, stack_size, stack_prot, MAP_PRIVATE | MAP_ANONYMOUS | MAP_UNINITIALIZED | MAP_GROWSDOWN, 0); @@ -1798,11 +1810,11 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm) ELF_CORE_WRITE_EXTRA_DATA; #endif - if (file->f_pos != offset) { + if (cprm->file->f_pos != offset) { /* Sanity check */ printk(KERN_WARNING "elf_core_dump: file->f_pos (%lld) != offset (%lld)\n", - file->f_pos, offset); + cprm->file->f_pos, offset); } end_coredump: diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index d4a00ea1054..42c6b4a5444 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -519,6 +519,7 @@ static int load_flat_file(struct linux_binprm * bprm, /* OK, This is the point of no return */ set_personality(PER_LINUX_32BIT); + setup_new_exec(bprm); } /* diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c index 2a9b5330cc5..cc8560f6c9b 100644 --- a/fs/binfmt_som.c +++ b/fs/binfmt_som.c @@ -227,6 +227,7 @@ load_som_binary(struct linux_binprm * bprm, struct pt_regs * regs) /* OK, This is the point of no return */ current->flags &= ~PF_FORKNOEXEC; current->personality = PER_HPUX; + setup_new_exec(bprm); /* Set the task size for HP-UX processes such that * the gateway page is outside the address space. diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 49a34e7f730..a16f29e888c 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -61,7 +61,7 @@ static inline unsigned int vecs_to_idx(unsigned int nr) static inline int use_bip_pool(unsigned int idx) { - if (idx == BIOVEC_NR_POOLS) + if (idx == BIOVEC_MAX_IDX) return 1; return 0; @@ -95,6 +95,7 @@ struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio, /* Use mempool if lower order alloc failed or max vecs were requested */ if (bip == NULL) { + idx = BIOVEC_MAX_IDX; /* so we free the payload properly later */ bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask); if (unlikely(bip == NULL)) { @@ -78,7 +78,7 @@ static struct kmem_cache *bio_find_or_create_slab(unsigned int extra_size) i = 0; while (i < bio_slab_nr) { - struct bio_slab *bslab = &bio_slabs[i]; + bslab = &bio_slabs[i]; if (!bslab->slab && entry == -1) entry = i; @@ -542,13 +542,18 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page if (page == prev->bv_page && offset == prev->bv_offset + prev->bv_len) { + unsigned int prev_bv_len = prev->bv_len; prev->bv_len += len; if (q->merge_bvec_fn) { struct bvec_merge_data bvm = { + /* prev_bvec is already charged in + bi_size, discharge it in order to + simulate merging updated prev_bvec + as new bvec. */ .bi_bdev = bio->bi_bdev, .bi_sector = bio->bi_sector, - .bi_size = bio->bi_size, + .bi_size = bio->bi_size - prev_bv_len, .bi_rw = bio->bi_rw, }; diff --git a/fs/block_dev.c b/fs/block_dev.c index 73d6a735b8f..d11d0289f3d 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -246,7 +246,8 @@ struct super_block *freeze_bdev(struct block_device *bdev) if (!sb) goto out; if (sb->s_flags & MS_RDONLY) { - deactivate_locked_super(sb); + sb->s_frozen = SB_FREEZE_TRANS; + up_write(&sb->s_umount); mutex_unlock(&bdev->bd_fsfreeze_mutex); return sb; } @@ -307,7 +308,7 @@ int thaw_bdev(struct block_device *bdev, struct super_block *sb) BUG_ON(sb->s_bdev != bdev); down_write(&sb->s_umount); if (sb->s_flags & MS_RDONLY) - goto out_deactivate; + goto out_unfrozen; if (sb->s_op->unfreeze_fs) { error = sb->s_op->unfreeze_fs(sb); @@ -321,11 +322,11 @@ int thaw_bdev(struct block_device *bdev, struct super_block *sb) } } +out_unfrozen: sb->s_frozen = SB_UNFROZEN; smp_wmb(); wake_up(&sb->s_wait_unfrozen); -out_deactivate: if (sb) deactivate_locked_super(sb); out_unlock: diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 2e9e69987a8..6df6d6ed74f 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -112,12 +112,14 @@ static int btrfs_set_acl(struct btrfs_trans_handle *trans, switch (type) { case ACL_TYPE_ACCESS: mode = inode->i_mode; - ret = posix_acl_equiv_mode(acl, &mode); - if (ret < 0) - return ret; - ret = 0; - inode->i_mode = mode; name = POSIX_ACL_XATTR_ACCESS; + if (acl) { + ret = posix_acl_equiv_mode(acl, &mode); + if (ret < 0) + return ret; + inode->i_mode = mode; + } + ret = 0; break; case ACL_TYPE_DEFAULT: if (!S_ISDIR(inode->i_mode)) @@ -242,6 +244,7 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans, ACL_TYPE_ACCESS); } } + posix_acl_release(clone); } failed: posix_acl_release(acl); diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9f806dd04c2..2aa8ec6a098 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1161,6 +1161,7 @@ struct btrfs_root { #define BTRFS_MOUNT_SSD_SPREAD (1 << 8) #define BTRFS_MOUNT_NOSSD (1 << 9) #define BTRFS_MOUNT_DISCARD (1 << 10) +#define BTRFS_MOUNT_FORCE_COMPRESS (1 << 11) #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 009e3bd18f2..2b59201b955 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1982,7 +1982,12 @@ struct btrfs_root *open_ctree(struct super_block *sb, if (!(sb->s_flags & MS_RDONLY)) { ret = btrfs_recover_relocation(tree_root); - BUG_ON(ret); + if (ret < 0) { + printk(KERN_WARNING + "btrfs: failed to recover relocation\n"); + err = -EINVAL; + goto fail_trans_kthread; + } } location.objectid = BTRFS_FS_TREE_OBJECTID; @@ -1993,6 +1998,12 @@ struct btrfs_root *open_ctree(struct super_block *sb, if (!fs_info->fs_root) goto fail_trans_kthread; + if (!(sb->s_flags & MS_RDONLY)) { + down_read(&fs_info->cleanup_work_sem); + btrfs_orphan_cleanup(fs_info->fs_root); + up_read(&fs_info->cleanup_work_sem); + } + return tree_root; fail_trans_kthread: diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 56e50137d0e..559f72489b3 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -83,6 +83,17 @@ static int block_group_bits(struct btrfs_block_group_cache *cache, u64 bits) return (cache->flags & bits) == bits; } +void btrfs_get_block_group(struct btrfs_block_group_cache *cache) +{ + atomic_inc(&cache->count); +} + +void btrfs_put_block_group(struct btrfs_block_group_cache *cache) +{ + if (atomic_dec_and_test(&cache->count)) + kfree(cache); +} + /* * this adds the block group to the fs_info rb tree for the block group * cache @@ -156,7 +167,7 @@ block_group_cache_tree_search(struct btrfs_fs_info *info, u64 bytenr, } } if (ret) - atomic_inc(&ret->count); + btrfs_get_block_group(ret); spin_unlock(&info->block_group_cache_lock); return ret; @@ -407,6 +418,8 @@ err: put_caching_control(caching_ctl); atomic_dec(&block_group->space_info->caching_threads); + btrfs_put_block_group(block_group); + return 0; } @@ -447,6 +460,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache) up_write(&fs_info->extent_commit_sem); atomic_inc(&cache->space_info->caching_threads); + btrfs_get_block_group(cache); tsk = kthread_run(caching_kthread, cache, "btrfs-cache-%llu\n", cache->key.objectid); @@ -486,12 +500,6 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group( return cache; } -void btrfs_put_block_group(struct btrfs_block_group_cache *cache) -{ - if (atomic_dec_and_test(&cache->count)) - kfree(cache); -} - static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info, u64 flags) { @@ -2582,7 +2590,7 @@ next_block_group(struct btrfs_root *root, if (node) { cache = rb_entry(node, struct btrfs_block_group_cache, cache_node); - atomic_inc(&cache->count); + btrfs_get_block_group(cache); } else cache = NULL; spin_unlock(&root->fs_info->block_group_cache_lock); @@ -4227,7 +4235,7 @@ search: u64 offset; int cached; - atomic_inc(&block_group->count); + btrfs_get_block_group(block_group); search_start = block_group->key.objectid; have_block_group: @@ -4315,7 +4323,7 @@ have_block_group: btrfs_put_block_group(block_group); block_group = last_ptr->block_group; - atomic_inc(&block_group->count); + btrfs_get_block_group(block_group); spin_unlock(&last_ptr->lock); spin_unlock(&last_ptr->refill_lock); @@ -5394,10 +5402,6 @@ static noinline int walk_down_tree(struct btrfs_trans_handle *trans, int ret; while (level >= 0) { - if (path->slots[level] >= - btrfs_header_nritems(path->nodes[level])) - break; - ret = walk_down_proc(trans, root, path, wc, lookup_info); if (ret > 0) break; @@ -5405,6 +5409,10 @@ static noinline int walk_down_tree(struct btrfs_trans_handle *trans, if (level == 0) break; + if (path->slots[level] >= + btrfs_header_nritems(path->nodes[level])) + break; + ret = do_walk_down(trans, root, path, wc, &lookup_info); if (ret > 0) { path->slots[level]++; @@ -7395,9 +7403,7 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info) wait_block_group_cache_done(block_group); btrfs_remove_free_space_cache(block_group); - - WARN_ON(atomic_read(&block_group->count) != 1); - kfree(block_group); + btrfs_put_block_group(block_group); spin_lock(&info->block_group_cache_lock); } diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 96577e8bf9f..b177ed31961 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3165,10 +3165,9 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree, spin_unlock(&tree->buffer_lock); goto free_eb; } - spin_unlock(&tree->buffer_lock); - /* add one reference for the tree */ atomic_inc(&eb->refs); + spin_unlock(&tree->buffer_lock); return eb; free_eb: diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 46bea0f4dc7..428fcac45f9 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -155,20 +155,6 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset, return NULL; } -/* - * look for an offset in the tree, and if it can't be found, return - * the first offset we can find smaller than 'offset'. - */ -static inline struct rb_node *tree_search(struct rb_root *root, u64 offset) -{ - struct rb_node *prev; - struct rb_node *ret; - ret = __tree_search(root, offset, &prev, NULL); - if (!ret) - return prev; - return ret; -} - /* check to see if two extent_map structs are adjacent and safe to merge */ static int mergable_maps(struct extent_map *prev, struct extent_map *next) { diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index feaa13b105d..6ed434ac037 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -506,7 +506,8 @@ next_slot: } static int extent_mergeable(struct extent_buffer *leaf, int slot, - u64 objectid, u64 bytenr, u64 *start, u64 *end) + u64 objectid, u64 bytenr, u64 orig_offset, + u64 *start, u64 *end) { struct btrfs_file_extent_item *fi; struct btrfs_key key; @@ -522,6 +523,7 @@ static int extent_mergeable(struct extent_buffer *leaf, int slot, fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item); if (btrfs_file_extent_type(leaf, fi) != BTRFS_FILE_EXTENT_REG || btrfs_file_extent_disk_bytenr(leaf, fi) != bytenr || + btrfs_file_extent_offset(leaf, fi) != key.offset - orig_offset || btrfs_file_extent_compression(leaf, fi) || btrfs_file_extent_encryption(leaf, fi) || btrfs_file_extent_other_encoding(leaf, fi)) @@ -561,6 +563,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, u64 split; int del_nr = 0; int del_slot = 0; + int recow; int ret; btrfs_drop_extent_cache(inode, start, end - 1, 0); @@ -568,6 +571,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); BUG_ON(!path); again: + recow = 0; split = start; key.objectid = inode->i_ino; key.type = BTRFS_EXTENT_DATA_KEY; @@ -591,12 +595,60 @@ again: bytenr = btrfs_file_extent_disk_bytenr(leaf, fi); num_bytes = btrfs_file_extent_disk_num_bytes(leaf, fi); orig_offset = key.offset - btrfs_file_extent_offset(leaf, fi); + memcpy(&new_key, &key, sizeof(new_key)); + + if (start == key.offset && end < extent_end) { + other_start = 0; + other_end = start; + if (extent_mergeable(leaf, path->slots[0] - 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + new_key.offset = end; + btrfs_set_item_key_safe(trans, root, path, &new_key); + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + extent_end - end); + btrfs_set_file_extent_offset(leaf, fi, + end - orig_offset); + fi = btrfs_item_ptr(leaf, path->slots[0] - 1, + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + end - other_start); + btrfs_mark_buffer_dirty(leaf); + goto out; + } + } + + if (start > key.offset && end == extent_end) { + other_start = end; + other_end = 0; + if (extent_mergeable(leaf, path->slots[0] + 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + start - key.offset); + path->slots[0]++; + new_key.offset = start; + btrfs_set_item_key_safe(trans, root, path, &new_key); + + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + other_end - start); + btrfs_set_file_extent_offset(leaf, fi, + start - orig_offset); + btrfs_mark_buffer_dirty(leaf); + goto out; + } + } while (start > key.offset || end < extent_end) { if (key.offset == start) split = end; - memcpy(&new_key, &key, sizeof(new_key)); new_key.offset = split; ret = btrfs_duplicate_item(trans, root, path, &new_key); if (ret == -EAGAIN) { @@ -631,15 +683,18 @@ again: path->slots[0]--; extent_end = end; } + recow = 1; } - fi = btrfs_item_ptr(leaf, path->slots[0], - struct btrfs_file_extent_item); - other_start = end; other_end = 0; - if (extent_mergeable(leaf, path->slots[0] + 1, inode->i_ino, - bytenr, &other_start, &other_end)) { + if (extent_mergeable(leaf, path->slots[0] + 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + if (recow) { + btrfs_release_path(root, path); + goto again; + } extent_end = other_end; del_slot = path->slots[0] + 1; del_nr++; @@ -650,8 +705,13 @@ again: } other_start = 0; other_end = start; - if (extent_mergeable(leaf, path->slots[0] - 1, inode->i_ino, - bytenr, &other_start, &other_end)) { + if (extent_mergeable(leaf, path->slots[0] - 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + if (recow) { + btrfs_release_path(root, path); + goto again; + } key.offset = other_start; del_slot = path->slots[0]; del_nr++; @@ -661,21 +721,23 @@ again: BUG_ON(ret); } if (del_nr == 0) { + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG); btrfs_mark_buffer_dirty(leaf); - goto out; - } - - fi = btrfs_item_ptr(leaf, del_slot - 1, - struct btrfs_file_extent_item); - btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG); - btrfs_set_file_extent_num_bytes(leaf, fi, - extent_end - key.offset); - btrfs_mark_buffer_dirty(leaf); + } else { + fi = btrfs_item_ptr(leaf, del_slot - 1, + struct btrfs_file_extent_item); + btrfs_set_file_extent_type(leaf, fi, + BTRFS_FILE_EXTENT_REG); + btrfs_set_file_extent_num_bytes(leaf, fi, + extent_end - key.offset); + btrfs_mark_buffer_dirty(leaf); - ret = btrfs_del_items(trans, root, path, del_slot, del_nr); - BUG_ON(ret); + ret = btrfs_del_items(trans, root, path, del_slot, del_nr); + BUG_ON(ret); + } out: btrfs_free_path(path); return 0; @@ -1073,7 +1135,7 @@ int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync) } mutex_lock(&dentry->d_inode->i_mutex); out: - return ret > 0 ? EIO : ret; + return ret > 0 ? -EIO : ret; } static const struct vm_operations_struct btrfs_file_vm_ops = { diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 5440bab2363..4deb280f896 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -483,7 +483,8 @@ again: nr_pages_ret = 0; /* flag the file so we don't compress in the future */ - BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS; + if (!btrfs_test_opt(root, FORCE_COMPRESS)) + BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS; } if (will_compress) { *num_added += 1; @@ -1680,24 +1681,6 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans, * before we start the transaction. It limits the amount of btree * reads required while inside the transaction. */ -static noinline void reada_csum(struct btrfs_root *root, - struct btrfs_path *path, - struct btrfs_ordered_extent *ordered_extent) -{ - struct btrfs_ordered_sum *sum; - u64 bytenr; - - sum = list_entry(ordered_extent->list.next, struct btrfs_ordered_sum, - list); - bytenr = sum->sums[0].bytenr; - - /* - * we don't care about the results, the point of this search is - * just to get the btree leaves into ram - */ - btrfs_lookup_csum(NULL, root->fs_info->csum_root, path, bytenr, 0); -} - /* as ordered data IO finishes, this gets called so we can finish * an ordered extent if the range of bytes in the file it covers are * fully written. @@ -1708,7 +1691,6 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end) struct btrfs_trans_handle *trans; struct btrfs_ordered_extent *ordered_extent = NULL; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; - struct btrfs_path *path; int compressed = 0; int ret; @@ -1716,32 +1698,9 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end) if (!ret) return 0; - /* - * before we join the transaction, try to do some of our IO. - * This will limit the amount of IO that we have to do with - * the transaction running. We're unlikely to need to do any - * IO if the file extents are new, the disk_i_size checks - * covers the most common case. - */ - if (start < BTRFS_I(inode)->disk_i_size) { - path = btrfs_alloc_path(); - if (path) { - ret = btrfs_lookup_file_extent(NULL, root, path, - inode->i_ino, - start, 0); - ordered_extent = btrfs_lookup_ordered_extent(inode, - start); - if (!list_empty(&ordered_extent->list)) { - btrfs_release_path(root, path); - reada_csum(root, path, ordered_extent); - } - btrfs_free_path(path); - } - } - - if (!ordered_extent) - ordered_extent = btrfs_lookup_ordered_extent(inode, start); + ordered_extent = btrfs_lookup_ordered_extent(inode, start); BUG_ON(!ordered_extent); + if (test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags)) { BUG_ON(!list_empty(&ordered_extent->list)); ret = btrfs_ordered_update_i_size(inode, 0, ordered_extent); @@ -3995,7 +3954,11 @@ skip: /* Reached end of directory/root. Bump pos past the last item. */ if (key_type == BTRFS_DIR_INDEX_KEY) - filp->f_pos = INT_LIMIT(off_t); + /* + * 32-bit glibc will use getdents64, but then strtol - + * so the last number we can serve is this. + */ + filp->f_pos = 0x7fffffff; else filp->f_pos++; nopos: @@ -5789,7 +5752,7 @@ out_fail: } static int prealloc_file_range(struct inode *inode, u64 start, u64 end, - u64 alloc_hint, int mode) + u64 alloc_hint, int mode, loff_t actual_len) { struct btrfs_trans_handle *trans; struct btrfs_root *root = BTRFS_I(inode)->root; @@ -5798,6 +5761,7 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end, u64 cur_offset = start; u64 num_bytes = end - start; int ret = 0; + u64 i_size; while (num_bytes > 0) { alloc_size = min(num_bytes, root->fs_info->max_extent); @@ -5835,9 +5799,15 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end, inode->i_ctime = CURRENT_TIME; BTRFS_I(inode)->flags |= BTRFS_INODE_PREALLOC; if (!(mode & FALLOC_FL_KEEP_SIZE) && - cur_offset > inode->i_size) { - i_size_write(inode, cur_offset); - btrfs_ordered_update_i_size(inode, cur_offset, NULL); + (actual_len > inode->i_size) && + (cur_offset > inode->i_size)) { + + if (cur_offset > actual_len) + i_size = actual_len; + else + i_size = cur_offset; + i_size_write(inode, i_size); + btrfs_ordered_update_i_size(inode, i_size, NULL); } ret = btrfs_update_inode(trans, root, inode); @@ -5930,7 +5900,7 @@ static long btrfs_fallocate(struct inode *inode, int mode, !test_bit(EXTENT_FLAG_PREALLOC, &em->flags))) { ret = prealloc_file_range(inode, cur_offset, last_byte, - alloc_hint, mode); + alloc_hint, mode, offset+len); if (ret < 0) { free_extent_map(em); break; diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index b10a49d4bc6..5c2a9e78a94 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -626,6 +626,8 @@ int btrfs_ordered_update_i_size(struct inode *inode, u64 offset, if (ordered) offset = entry_end(ordered); + else + offset = ALIGN(offset, BTRFS_I(inode)->root->sectorsize); mutex_lock(&tree->mutex); disk_i_size = BTRFS_I(inode)->disk_i_size; diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index a9728680eca..ab7ab531874 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -3281,8 +3281,10 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc) return -ENOMEM; path = btrfs_alloc_path(); - if (!path) + if (!path) { + kfree(cluster); return -ENOMEM; + } rc->extents_found = 0; rc->extents_skipped = 0; @@ -3762,7 +3764,8 @@ out: BTRFS_DATA_RELOC_TREE_OBJECTID); if (IS_ERR(fs_root)) err = PTR_ERR(fs_root); - btrfs_orphan_cleanup(fs_root); + else + btrfs_orphan_cleanup(fs_root); } return err; } diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 3f9b45704fc..8a1ea6e6457 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -66,7 +66,8 @@ enum { Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, - Opt_compress, Opt_notreelog, Opt_ratio, Opt_flushoncommit, + Opt_compress, Opt_compress_force, Opt_notreelog, Opt_ratio, + Opt_flushoncommit, Opt_discard, Opt_err, }; @@ -82,6 +83,7 @@ static match_table_t tokens = { {Opt_alloc_start, "alloc_start=%s"}, {Opt_thread_pool, "thread_pool=%d"}, {Opt_compress, "compress"}, + {Opt_compress_force, "compress-force"}, {Opt_ssd, "ssd"}, {Opt_ssd_spread, "ssd_spread"}, {Opt_nossd, "nossd"}, @@ -173,6 +175,11 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) printk(KERN_INFO "btrfs: use compression\n"); btrfs_set_opt(info->mount_opt, COMPRESS); break; + case Opt_compress_force: + printk(KERN_INFO "btrfs: forcing compression\n"); + btrfs_set_opt(info->mount_opt, FORCE_COMPRESS); + btrfs_set_opt(info->mount_opt, COMPRESS); + break; case Opt_ssd: printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); btrfs_set_opt(info->mount_opt, SSD); diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 198cff28766..41ecbb2347f 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1135,7 +1135,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) root->fs_info->avail_metadata_alloc_bits; if ((all_avail & BTRFS_BLOCK_GROUP_RAID10) && - root->fs_info->fs_devices->rw_devices <= 4) { + root->fs_info->fs_devices->num_devices <= 4) { printk(KERN_ERR "btrfs: unable to go below four devices " "on raid10\n"); ret = -EINVAL; @@ -1143,7 +1143,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) } if ((all_avail & BTRFS_BLOCK_GROUP_RAID1) && - root->fs_info->fs_devices->rw_devices <= 2) { + root->fs_info->fs_devices->num_devices <= 2) { printk(KERN_ERR "btrfs: unable to go below two " "devices on raid1\n"); ret = -EINVAL; @@ -1434,8 +1434,8 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) return -EINVAL; bdev = open_bdev_exclusive(device_path, 0, root->fs_info->bdev_holder); - if (!bdev) - return -EIO; + if (IS_ERR(bdev)) + return PTR_ERR(bdev); if (root->fs_info->fs_devices->seeding) { seeding_dev = 1; @@ -2538,6 +2538,11 @@ int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset) if (!em) return 1; + if (btrfs_test_opt(root, DEGRADED)) { + free_extent_map(em); + return 0; + } + map = (struct map_lookup *)em->bdev; for (i = 0; i < map->num_stripes; i++) { if (!map->stripes[i].dev->writeable) { @@ -2649,8 +2654,10 @@ again: em = lookup_extent_mapping(em_tree, logical, *length); read_unlock(&em_tree->lock); - if (!em && unplug_page) + if (!em && unplug_page) { + kfree(multi); return 0; + } if (!em) { printk(KERN_CRIT "unable to find logical %llu len %llu\n", diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c index 14ac4806e29..eeb4986ea7d 100644 --- a/fs/cachefiles/namei.c +++ b/fs/cachefiles/namei.c @@ -348,7 +348,17 @@ int cachefiles_delete_object(struct cachefiles_cache *cache, dir = dget_parent(object->dentry); mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT); - ret = cachefiles_bury_object(cache, dir, object->dentry); + + /* we need to check that our parent is _still_ our parent - it may have + * been renamed */ + if (dir == object->dentry->d_parent) { + ret = cachefiles_bury_object(cache, dir, object->dentry); + } else { + /* it got moved, presumably by cachefilesd culling it, so it's + * no longer in the key path and we can ignore it */ + mutex_unlock(&dir->d_inode->i_mutex); + ret = 0; + } dput(dir); _leave(" = %d", ret); diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 094ea65afc8..49503d2edc7 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,7 @@ +Version 1.62 +------------ +Add sockopt=TCP_NODELAY mount option. + Version 1.61 ------------ Fix append problem to Samba servers (files opened with O_APPEND could @@ -5,7 +9,9 @@ have duplicated data). Fix oops in cifs_lookup. Workaround problem mounting to OS/400 Netserve. Fix oops in cifs_get_tcp_session. Disable use of server inode numbers when server only partially supports them (e.g. for one server querying inode numbers on -FindFirst fails but QPathInfo queries works). +FindFirst fails but QPathInfo queries works). Fix oops with dfs in +cifs_put_smb_ses. Fix mmap to work on directio mounts (needed +for OpenOffice when on forcedirectio mount e.g.) Version 1.60 ------------- diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index fea9e898c4b..b44ce0a0711 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -269,7 +269,7 @@ static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd, int err; mntget(newmnt); - err = do_add_mount(newmnt, &nd->path, nd->path.mnt->mnt_flags, mntlist); + err = do_add_mount(newmnt, &nd->path, nd->path.mnt->mnt_flags | MNT_SHRINKABLE, mntlist); switch (err) { case 0: path_put(&nd->path); @@ -371,7 +371,6 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd) if (IS_ERR(mnt)) goto out_err; - nd->path.mnt->mnt_flags |= MNT_SHRINKABLE; rc = add_mount_helper(mnt, nd, &cifs_dfs_automount_list); out: diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 29f1da761bb..8c6a0362717 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -758,7 +758,7 @@ const struct file_operations cifs_file_ops = { }; const struct file_operations cifs_file_direct_ops = { - /* no mmap, no aio, no readv - + /* no aio, no readv - BB reevaluate whether they can be done with directio, no cache */ .read = cifs_user_read, .write = cifs_user_write, @@ -767,6 +767,7 @@ const struct file_operations cifs_file_direct_ops = { .lock = cifs_lock, .fsync = cifs_fsync, .flush = cifs_flush, + .mmap = cifs_file_mmap, .splice_read = generic_file_splice_read, #ifdef CONFIG_CIFS_POSIX .unlocked_ioctl = cifs_ioctl, diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index ac2b24c192f..78c1b86d55f 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -113,5 +113,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); extern const struct export_operations cifs_export_ops; #endif /* EXPERIMENTAL */ -#define CIFS_VERSION "1.61" +#define CIFS_VERSION "1.62" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 4b35f7ec058..ed751bb657d 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -149,6 +149,7 @@ struct TCP_Server_Info { bool svlocal:1; /* local server or remote */ bool noblocksnd; /* use blocking sendmsg */ bool noautotune; /* do not autotune send buf sizes */ + bool tcp_nodelay; atomic_t inFlight; /* number of requests on the wire to server */ #ifdef CONFIG_CIFS_STATS2 atomic_t inSend; /* requests trying to send */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 63ea83ff687..2e9e09ca0e3 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -98,7 +98,7 @@ struct smb_vol { bool nostrictsync:1; /* do not force expensive SMBflush on every sync */ unsigned int rsize; unsigned int wsize; - unsigned int sockopt; + bool sockopt_tcp_nodelay:1; unsigned short int port; char *prepath; }; @@ -1142,9 +1142,11 @@ cifs_parse_mount_options(char *options, const char *devname, simple_strtoul(value, &value, 0); } } else if (strnicmp(data, "sockopt", 5) == 0) { - if (value && *value) { - vol->sockopt = - simple_strtoul(value, &value, 0); + if (!value || !*value) { + cERROR(1, ("no socket option specified")); + continue; + } else if (strnicmp(value, "TCP_NODELAY", 11) == 0) { + vol->sockopt_tcp_nodelay = 1; } } else if (strnicmp(data, "netbiosname", 4) == 0) { if (!value || !*value || (*value == ' ')) { @@ -1514,6 +1516,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info) tcp_ses->noblocksnd = volume_info->noblocksnd; tcp_ses->noautotune = volume_info->noautotune; + tcp_ses->tcp_nodelay = volume_info->sockopt_tcp_nodelay; atomic_set(&tcp_ses->inFlight, 0); init_waitqueue_head(&tcp_ses->response_q); init_waitqueue_head(&tcp_ses->request_q); @@ -1764,6 +1767,7 @@ static int ipv4_connect(struct TCP_Server_Info *server) { int rc = 0; + int val; bool connected = false; __be16 orig_port = 0; struct socket *socket = server->ssocket; @@ -1845,6 +1849,14 @@ ipv4_connect(struct TCP_Server_Info *server) socket->sk->sk_rcvbuf = 140 * 1024; } + if (server->tcp_nodelay) { + val = 1; + rc = kernel_setsockopt(socket, SOL_TCP, TCP_NODELAY, + (char *)&val, sizeof(val)); + if (rc) + cFYI(1, ("set TCP_NODELAY socket option error %d", rc)); + } + cFYI(1, ("sndbuf %d rcvbuf %d rcvtimeo 0x%lx", socket->sk->sk_sndbuf, socket->sk->sk_rcvbuf, socket->sk->sk_rcvtimeo)); @@ -1916,6 +1928,7 @@ static int ipv6_connect(struct TCP_Server_Info *server) { int rc = 0; + int val; bool connected = false; __be16 orig_port = 0; struct socket *socket = server->ssocket; @@ -1987,6 +2000,15 @@ ipv6_connect(struct TCP_Server_Info *server) */ socket->sk->sk_rcvtimeo = 7 * HZ; socket->sk->sk_sndtimeo = 5 * HZ; + + if (server->tcp_nodelay) { + val = 1; + rc = kernel_setsockopt(socket, SOL_TCP, TCP_NODELAY, + (char *)&val, sizeof(val)); + if (rc) + cFYI(1, ("set TCP_NODELAY socket option error %d", rc)); + } + server->ssocket = socket; return rc; @@ -2287,12 +2309,12 @@ int cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, char *mount_data_global, const char *devname) { - int rc = 0; + int rc; int xid; struct smb_vol *volume_info; - struct cifsSesInfo *pSesInfo = NULL; - struct cifsTconInfo *tcon = NULL; - struct TCP_Server_Info *srvTcp = NULL; + struct cifsSesInfo *pSesInfo; + struct cifsTconInfo *tcon; + struct TCP_Server_Info *srvTcp; char *full_path; char *mount_data = mount_data_global; #ifdef CONFIG_CIFS_DFS_UPCALL @@ -2301,6 +2323,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, int referral_walks_count = 0; try_mount_again: #endif + rc = 0; + tcon = NULL; + pSesInfo = NULL; + srvTcp = NULL; full_path = NULL; xid = GetXid(); @@ -2597,6 +2623,7 @@ remote_path_check: cleanup_volume_info(&volume_info); referral_walks_count++; + FreeXid(xid); goto try_mount_again; } #else /* No DFS support, return error on mount */ diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index cf18ee76559..e3fda978f48 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1762,8 +1762,18 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) CIFS_MOUNT_MAP_SPECIAL_CHR); } - if (!rc) + if (!rc) { rc = inode_setattr(inode, attrs); + + /* force revalidate when any of these times are set since some + of the fs types (eg ext3, fat) do not have fine enough + time granularity to match protocol, and we do not have a + a way (yet) to query the server fs's time granularity (and + whether it rounds times down). + */ + if (!rc && (attrs->ia_valid & (ATTR_MTIME | ATTR_CTIME))) + cifsInode->time = 0; + } out: kfree(args); kfree(full_path); diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index f84062f9a98..c343b14ba2d 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -77,6 +77,11 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name, cFYI(1, ("For %s", name->name)); + if (parent->d_op && parent->d_op->d_hash) + parent->d_op->d_hash(parent, name); + else + name->hash = full_name_hash(name->name, name->len); + dentry = d_lookup(parent, name); if (dentry) { /* FIXME: check for inode number changes? */ @@ -666,12 +671,11 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst, min(len, max_len), nlt, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + pqst->len -= nls_nullsize(nlt); } else { pqst->name = filename; pqst->len = len; } - pqst->hash = full_name_hash(pqst->name, pqst->len); -/* cFYI(1, ("filldir on %s",pqst->name)); */ return rc; } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 7085a6275c4..aaa9c1c5a5b 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -223,9 +223,9 @@ static void unicode_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, /* null user mount */ *bcc_ptr = 0; *(bcc_ptr+1) = 0; - } else { /* 300 should be long enough for any conceivable user name */ + } else { bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->userName, - 300, nls_cp); + MAX_USERNAME_SIZE, nls_cp); } bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* account for null termination */ @@ -246,11 +246,10 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, /* copy user */ if (ses->userName == NULL) { /* BB what about null user mounts - check that we do this BB */ - } else { /* 300 should be long enough for any conceivable user name */ - strncpy(bcc_ptr, ses->userName, 300); + } else { + strncpy(bcc_ptr, ses->userName, MAX_USERNAME_SIZE); } - /* BB improve check for overflow */ - bcc_ptr += strnlen(ses->userName, 300); + bcc_ptr += strnlen(ses->userName, MAX_USERNAME_SIZE); *bcc_ptr = 0; bcc_ptr++; /* account for null termination */ diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 332dd00f089..0ca9ec4a79c 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -301,6 +301,12 @@ static int sg_ioctl_trans(unsigned int fd, unsigned int cmd, u32 data; void __user *dxferp; int err; + int interface_id; + + if (get_user(interface_id, &sgio32->interface_id)) + return -EFAULT; + if (interface_id != 'S') + return sys_ioctl(fd, cmd, (unsigned long)sgio32); if (get_user(iovec_count, &sgio32->iovec_count)) return -EFAULT; @@ -936,6 +942,7 @@ COMPATIBLE_IOCTL(TCSETSF) COMPATIBLE_IOCTL(TIOCLINUX) COMPATIBLE_IOCTL(TIOCSBRK) COMPATIBLE_IOCTL(TIOCCBRK) +COMPATIBLE_IOCTL(TIOCGSID) COMPATIBLE_IOCTL(TIOCGICOUNT) /* Little t */ COMPATIBLE_IOCTL(TIOCGETD) @@ -1005,6 +1012,9 @@ COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND) COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST) COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) #endif +/* Big V (don't complain on serial console) */ +IGNORE_IOCTL(VT_OPENQRY) +IGNORE_IOCTL(VT_GETMODE) /* Little p (/dev/rtc, /dev/envctrl, etc.) */ COMPATIBLE_IOCTL(RTC_AIE_ON) COMPATIBLE_IOCTL(RTC_AIE_OFF) @@ -1035,6 +1045,8 @@ COMPATIBLE_IOCTL(FIOQSIZE) #ifdef CONFIG_BLOCK /* loop */ IGNORE_IOCTL(LOOP_CLR_FD) +/* md calls this on random blockdevs */ +IGNORE_IOCTL(RAID_VERSION) /* SG stuff */ COMPATIBLE_IOCTL(SG_SET_TIMEOUT) COMPATIBLE_IOCTL(SG_GET_TIMEOUT) diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c index c8afa6b1d91..32a5f46b115 100644 --- a/fs/configfs/symlink.c +++ b/fs/configfs/symlink.c @@ -121,8 +121,10 @@ static int get_target(const char *symname, struct path *path, ret = -ENOENT; path_put(path); } - } else + } else { ret = -EPERM; + path_put(path); + } } return ret; diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index b486169f42b..274ac865bae 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -160,15 +160,8 @@ static int debugfs_create_by_name(const char *name, mode_t mode, * block. A pointer to that is in the struct vfsmount that we * have around. */ - if (!parent) { - if (debugfs_mount && debugfs_mount->mnt_sb) { - parent = debugfs_mount->mnt_sb->s_root; - } - } - if (!parent) { - pr_debug("debugfs: Ah! can not find a parent!\n"); - return -EFAULT; - } + if (!parent) + parent = debugfs_mount->mnt_sb->s_root; *dentry = NULL; mutex_lock(&parent->d_inode->i_mutex); diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index fbb6e5eed69..7cb0a59f4b9 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1748,7 +1748,7 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm, char *cipher_name, size_t *key_size) { char dummy_key[ECRYPTFS_MAX_KEY_BYTES]; - char *full_alg_name; + char *full_alg_name = NULL; int rc; *key_tfm = NULL; @@ -1763,7 +1763,6 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm, if (rc) goto out; *key_tfm = crypto_alloc_blkcipher(full_alg_name, 0, CRYPTO_ALG_ASYNC); - kfree(full_alg_name); if (IS_ERR(*key_tfm)) { rc = PTR_ERR(*key_tfm); printk(KERN_ERR "Unable to allocate crypto cipher with name " @@ -1786,6 +1785,7 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm, goto out; } out: + kfree(full_alg_name); return rc; } diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 9e944057001..678172b61be 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -158,7 +158,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file) struct dentry *ecryptfs_dentry = file->f_path.dentry; /* Private value of ecryptfs_dentry allocated in * ecryptfs_lookup() */ - struct dentry *lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry); + struct dentry *lower_dentry; struct ecryptfs_file_info *file_info; mount_crypt_stat = &ecryptfs_superblock_to_private( @@ -191,13 +191,6 @@ static int ecryptfs_open(struct inode *inode, struct file *file) | ECRYPTFS_ENCRYPTED); } mutex_unlock(&crypt_stat->cs_mutex); - if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY) - && !(file->f_flags & O_RDONLY)) { - rc = -EPERM; - printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs " - "file must hence be opened RO\n", __func__); - goto out; - } if (!ecryptfs_inode_to_private(inode)->lower_file) { rc = ecryptfs_init_persistent_file(ecryptfs_dentry); if (rc) { @@ -208,6 +201,13 @@ static int ecryptfs_open(struct inode *inode, struct file *file) goto out; } } + if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY) + && !(file->f_flags & O_RDONLY)) { + rc = -EPERM; + printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs " + "file must hence be opened RO\n", __func__); + goto out; + } ecryptfs_set_file_lower( file, ecryptfs_inode_to_private(inode)->lower_file); if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) { @@ -299,7 +299,6 @@ static int ecryptfs_ioctl(struct inode *inode, struct file *file, const struct file_operations ecryptfs_dir_fops = { .readdir = ecryptfs_readdir, .ioctl = ecryptfs_ioctl, - .mmap = generic_file_mmap, .open = ecryptfs_open, .flush = ecryptfs_flush, .release = ecryptfs_release, diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 429ca0b3ba0..4a430ab4115 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -282,7 +282,8 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry, goto out; } rc = ecryptfs_interpose(lower_dentry, ecryptfs_dentry, - ecryptfs_dir_inode->i_sb, 1); + ecryptfs_dir_inode->i_sb, + ECRYPTFS_INTERPOSE_FLAG_D_ADD); if (rc) { printk(KERN_ERR "%s: Error interposing; rc = [%d]\n", __func__, rc); @@ -463,9 +464,6 @@ out_lock: unlock_dir(lower_dir_dentry); dput(lower_new_dentry); dput(lower_old_dentry); - d_drop(lower_old_dentry); - d_drop(new_dentry); - d_drop(old_dentry); return rc; } @@ -614,6 +612,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct dentry *lower_new_dentry; struct dentry *lower_old_dir_dentry; struct dentry *lower_new_dir_dentry; + struct dentry *trap = NULL; lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry); lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry); @@ -621,7 +620,17 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, dget(lower_new_dentry); lower_old_dir_dentry = dget_parent(lower_old_dentry); lower_new_dir_dentry = dget_parent(lower_new_dentry); - lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); + trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); + /* source should not be ancestor of target */ + if (trap == lower_old_dentry) { + rc = -EINVAL; + goto out_lock; + } + /* target should not be ancestor of source */ + if (trap == lower_new_dentry) { + rc = -ENOTEMPTY; + goto out_lock; + } rc = vfs_rename(lower_old_dir_dentry->d_inode, lower_old_dentry, lower_new_dir_dentry->d_inode, lower_new_dentry); if (rc) @@ -715,31 +724,31 @@ static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd) /* Released in ecryptfs_put_link(); only release here on error */ buf = kmalloc(len, GFP_KERNEL); if (!buf) { - rc = -ENOMEM; + buf = ERR_PTR(-ENOMEM); goto out; } old_fs = get_fs(); set_fs(get_ds()); rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len); set_fs(old_fs); - if (rc < 0) - goto out_free; - else + if (rc < 0) { + kfree(buf); + buf = ERR_PTR(rc); + } else buf[rc] = '\0'; - rc = 0; - nd_set_link(nd, buf); - goto out; -out_free: - kfree(buf); out: - return ERR_PTR(rc); + nd_set_link(nd, buf); + return NULL; } static void ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr) { - /* Free the char* */ - kfree(nd_get_link(nd)); + char *buf = nd_get_link(nd); + if (!IS_ERR(buf)) { + /* Free the char* */ + kfree(buf); + } } /** @@ -772,18 +781,23 @@ upper_size_to_lower_size(struct ecryptfs_crypt_stat *crypt_stat, } /** - * ecryptfs_truncate + * truncate_upper * @dentry: The ecryptfs layer dentry - * @new_length: The length to expand the file to + * @ia: Address of the ecryptfs inode's attributes + * @lower_ia: Address of the lower inode's attributes * * Function to handle truncations modifying the size of the file. Note * that the file sizes are interpolated. When expanding, we are simply - * writing strings of 0's out. When truncating, we need to modify the - * underlying file size according to the page index interpolations. + * writing strings of 0's out. When truncating, we truncate the upper + * inode and update the lower_ia according to the page index + * interpolations. If ATTR_SIZE is set in lower_ia->ia_valid upon return, + * the caller must use lower_ia in a call to notify_change() to perform + * the truncation of the lower inode. * * Returns zero on success; non-zero otherwise */ -int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) +static int truncate_upper(struct dentry *dentry, struct iattr *ia, + struct iattr *lower_ia) { int rc = 0; struct inode *inode = dentry->d_inode; @@ -794,8 +808,10 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) loff_t lower_size_before_truncate; loff_t lower_size_after_truncate; - if (unlikely((new_length == i_size))) + if (unlikely((ia->ia_size == i_size))) { + lower_ia->ia_valid &= ~ATTR_SIZE; goto out; + } crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat; /* Set up a fake ecryptfs file, this is used to interface with * the file in the underlying filesystem so that the @@ -815,28 +831,30 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) &fake_ecryptfs_file, ecryptfs_inode_to_private(dentry->d_inode)->lower_file); /* Switch on growing or shrinking file */ - if (new_length > i_size) { + if (ia->ia_size > i_size) { char zero[] = { 0x00 }; + lower_ia->ia_valid &= ~ATTR_SIZE; /* Write a single 0 at the last position of the file; * this triggers code that will fill in 0's throughout * the intermediate portion of the previous end of the * file and the new and of the file */ rc = ecryptfs_write(&fake_ecryptfs_file, zero, - (new_length - 1), 1); - } else { /* new_length < i_size_read(inode) */ - /* We're chopping off all the pages down do the page - * in which new_length is located. Fill in the end of - * that page from (new_length & ~PAGE_CACHE_MASK) to + (ia->ia_size - 1), 1); + } else { /* ia->ia_size < i_size_read(inode) */ + /* We're chopping off all the pages down to the page + * in which ia->ia_size is located. Fill in the end of + * that page from (ia->ia_size & ~PAGE_CACHE_MASK) to * PAGE_CACHE_SIZE with zeros. */ size_t num_zeros = (PAGE_CACHE_SIZE - - (new_length & ~PAGE_CACHE_MASK)); + - (ia->ia_size & ~PAGE_CACHE_MASK)); if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { - rc = vmtruncate(inode, new_length); + rc = vmtruncate(inode, ia->ia_size); if (rc) goto out_free; - rc = vmtruncate(lower_dentry->d_inode, new_length); + lower_ia->ia_size = ia->ia_size; + lower_ia->ia_valid |= ATTR_SIZE; goto out_free; } if (num_zeros) { @@ -848,7 +866,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) goto out_free; } rc = ecryptfs_write(&fake_ecryptfs_file, zeros_virt, - new_length, num_zeros); + ia->ia_size, num_zeros); kfree(zeros_virt); if (rc) { printk(KERN_ERR "Error attempting to zero out " @@ -857,7 +875,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) goto out_free; } } - vmtruncate(inode, new_length); + vmtruncate(inode, ia->ia_size); rc = ecryptfs_write_inode_size_to_metadata(inode); if (rc) { printk(KERN_ERR "Problem with " @@ -870,10 +888,12 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) lower_size_before_truncate = upper_size_to_lower_size(crypt_stat, i_size); lower_size_after_truncate = - upper_size_to_lower_size(crypt_stat, new_length); - if (lower_size_after_truncate < lower_size_before_truncate) - vmtruncate(lower_dentry->d_inode, - lower_size_after_truncate); + upper_size_to_lower_size(crypt_stat, ia->ia_size); + if (lower_size_after_truncate < lower_size_before_truncate) { + lower_ia->ia_size = lower_size_after_truncate; + lower_ia->ia_valid |= ATTR_SIZE; + } else + lower_ia->ia_valid &= ~ATTR_SIZE; } out_free: if (ecryptfs_file_to_private(&fake_ecryptfs_file)) @@ -883,6 +903,33 @@ out: return rc; } +/** + * ecryptfs_truncate + * @dentry: The ecryptfs layer dentry + * @new_length: The length to expand the file to + * + * Simple function that handles the truncation of an eCryptfs inode and + * its corresponding lower inode. + * + * Returns zero on success; non-zero otherwise + */ +int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) +{ + struct iattr ia = { .ia_valid = ATTR_SIZE, .ia_size = new_length }; + struct iattr lower_ia = { .ia_valid = 0 }; + int rc; + + rc = truncate_upper(dentry, &ia, &lower_ia); + if (!rc && lower_ia.ia_valid & ATTR_SIZE) { + struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry); + + mutex_lock(&lower_dentry->d_inode->i_mutex); + rc = notify_change(lower_dentry, &lower_ia); + mutex_unlock(&lower_dentry->d_inode->i_mutex); + } + return rc; +} + static int ecryptfs_permission(struct inode *inode, int mask) { @@ -905,6 +952,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) { int rc = 0; struct dentry *lower_dentry; + struct iattr lower_ia; struct inode *inode; struct inode *lower_inode; struct ecryptfs_crypt_stat *crypt_stat; @@ -943,15 +991,11 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) } } mutex_unlock(&crypt_stat->cs_mutex); + memcpy(&lower_ia, ia, sizeof(lower_ia)); + if (ia->ia_valid & ATTR_FILE) + lower_ia.ia_file = ecryptfs_file_to_lower(ia->ia_file); if (ia->ia_valid & ATTR_SIZE) { - ecryptfs_printk(KERN_DEBUG, - "ia->ia_valid = [0x%x] ATTR_SIZE" " = [0x%x]\n", - ia->ia_valid, ATTR_SIZE); - rc = ecryptfs_truncate(dentry, ia->ia_size); - /* ecryptfs_truncate handles resizing of the lower file */ - ia->ia_valid &= ~ATTR_SIZE; - ecryptfs_printk(KERN_DEBUG, "ia->ia_valid = [%x]\n", - ia->ia_valid); + rc = truncate_upper(dentry, ia, &lower_ia); if (rc < 0) goto out; } @@ -960,17 +1004,32 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) * mode change is for clearing setuid/setgid bits. Allow lower fs * to interpret this in its own way. */ - if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) - ia->ia_valid &= ~ATTR_MODE; + if (lower_ia.ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) + lower_ia.ia_valid &= ~ATTR_MODE; mutex_lock(&lower_dentry->d_inode->i_mutex); - rc = notify_change(lower_dentry, ia); + rc = notify_change(lower_dentry, &lower_ia); mutex_unlock(&lower_dentry->d_inode->i_mutex); out: fsstack_copy_attr_all(inode, lower_inode); return rc; } +int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry, + struct kstat *stat) +{ + struct kstat lower_stat; + int rc; + + rc = vfs_getattr(ecryptfs_dentry_to_lower_mnt(dentry), + ecryptfs_dentry_to_lower(dentry), &lower_stat); + if (!rc) { + generic_fillattr(dentry->d_inode, stat); + stat->blocks = lower_stat.blocks; + } + return rc; +} + int ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) @@ -1100,6 +1159,7 @@ const struct inode_operations ecryptfs_dir_iops = { const struct inode_operations ecryptfs_main_iops = { .permission = ecryptfs_permission, .setattr = ecryptfs_setattr, + .getattr = ecryptfs_getattr, .setxattr = ecryptfs_setxattr, .getxattr = ecryptfs_getxattr, .listxattr = ecryptfs_listxattr, diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index 567bc4b9f70..ea2f92101df 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -585,8 +585,8 @@ out: * with as much information as it can before needing * the lower filesystem. * ecryptfs_read_super(): this accesses the lower filesystem and uses - * ecryptfs_interpolate to perform most of the linking - * ecryptfs_interpolate(): links the lower filesystem into ecryptfs + * ecryptfs_interpose to perform most of the linking + * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c) */ static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data, diff --git a/fs/eventfd.c b/fs/eventfd.c index d26402ff06e..7758cc382ef 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -135,26 +135,71 @@ static unsigned int eventfd_poll(struct file *file, poll_table *wait) return events; } -static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count, - loff_t *ppos) +static void eventfd_ctx_do_read(struct eventfd_ctx *ctx, __u64 *cnt) +{ + *cnt = (ctx->flags & EFD_SEMAPHORE) ? 1 : ctx->count; + ctx->count -= *cnt; +} + +/** + * eventfd_ctx_remove_wait_queue - Read the current counter and removes wait queue. + * @ctx: [in] Pointer to eventfd context. + * @wait: [in] Wait queue to be removed. + * @cnt: [out] Pointer to the 64bit conter value. + * + * Returns zero if successful, or the following error codes: + * + * -EAGAIN : The operation would have blocked. + * + * This is used to atomically remove a wait queue entry from the eventfd wait + * queue head, and read/reset the counter value. + */ +int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_t *wait, + __u64 *cnt) +{ + unsigned long flags; + + spin_lock_irqsave(&ctx->wqh.lock, flags); + eventfd_ctx_do_read(ctx, cnt); + __remove_wait_queue(&ctx->wqh, wait); + if (*cnt != 0 && waitqueue_active(&ctx->wqh)) + wake_up_locked_poll(&ctx->wqh, POLLOUT); + spin_unlock_irqrestore(&ctx->wqh.lock, flags); + + return *cnt != 0 ? 0 : -EAGAIN; +} +EXPORT_SYMBOL_GPL(eventfd_ctx_remove_wait_queue); + +/** + * eventfd_ctx_read - Reads the eventfd counter or wait if it is zero. + * @ctx: [in] Pointer to eventfd context. + * @no_wait: [in] Different from zero if the operation should not block. + * @cnt: [out] Pointer to the 64bit conter value. + * + * Returns zero if successful, or the following error codes: + * + * -EAGAIN : The operation would have blocked but @no_wait was nonzero. + * -ERESTARTSYS : A signal interrupted the wait operation. + * + * If @no_wait is zero, the function might sleep until the eventfd internal + * counter becomes greater than zero. + */ +ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, __u64 *cnt) { - struct eventfd_ctx *ctx = file->private_data; ssize_t res; - __u64 ucnt = 0; DECLARE_WAITQUEUE(wait, current); - if (count < sizeof(ucnt)) - return -EINVAL; spin_lock_irq(&ctx->wqh.lock); + *cnt = 0; res = -EAGAIN; if (ctx->count > 0) - res = sizeof(ucnt); - else if (!(file->f_flags & O_NONBLOCK)) { + res = 0; + else if (!no_wait) { __add_wait_queue(&ctx->wqh, &wait); - for (res = 0;;) { + for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (ctx->count > 0) { - res = sizeof(ucnt); + res = 0; break; } if (signal_pending(current)) { @@ -168,18 +213,32 @@ static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count, __remove_wait_queue(&ctx->wqh, &wait); __set_current_state(TASK_RUNNING); } - if (likely(res > 0)) { - ucnt = (ctx->flags & EFD_SEMAPHORE) ? 1 : ctx->count; - ctx->count -= ucnt; + if (likely(res == 0)) { + eventfd_ctx_do_read(ctx, cnt); if (waitqueue_active(&ctx->wqh)) wake_up_locked_poll(&ctx->wqh, POLLOUT); } spin_unlock_irq(&ctx->wqh.lock); - if (res > 0 && put_user(ucnt, (__u64 __user *) buf)) - return -EFAULT; return res; } +EXPORT_SYMBOL_GPL(eventfd_ctx_read); + +static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count, + loff_t *ppos) +{ + struct eventfd_ctx *ctx = file->private_data; + ssize_t res; + __u64 cnt; + + if (count < sizeof(cnt)) + return -EINVAL; + res = eventfd_ctx_read(ctx, file->f_flags & O_NONBLOCK, &cnt); + if (res < 0) + return res; + + return put_user(cnt, (__u64 __user *) buf) ? -EFAULT : sizeof(cnt); +} static ssize_t eventfd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) diff --git a/fs/exec.c b/fs/exec.c index 632b02e34ec..cce6bbdbdbb 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -571,6 +571,9 @@ int setup_arg_pages(struct linux_binprm *bprm, struct vm_area_struct *prev = NULL; unsigned long vm_flags; unsigned long stack_base; + unsigned long stack_size; + unsigned long stack_expand; + unsigned long rlim_stack; #ifdef CONFIG_STACK_GROWSUP /* Limit stack size to 1GB */ @@ -627,10 +630,23 @@ int setup_arg_pages(struct linux_binprm *bprm, goto out_unlock; } + stack_expand = EXTRA_STACK_VM_PAGES * PAGE_SIZE; + stack_size = vma->vm_end - vma->vm_start; + /* + * Align this down to a page boundary as expand_stack + * will align it up. + */ + rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK; #ifdef CONFIG_STACK_GROWSUP - stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE; + if (stack_size + stack_expand > rlim_stack) + stack_base = vma->vm_start + rlim_stack; + else + stack_base = vma->vm_end + stack_expand; #else - stack_base = vma->vm_start - EXTRA_STACK_VM_PAGES * PAGE_SIZE; + if (stack_size + stack_expand > rlim_stack) + stack_base = vma->vm_end - rlim_stack; + else + stack_base = vma->vm_start - stack_expand; #endif ret = expand_stack(vma, stack_base); if (ret) @@ -941,9 +957,7 @@ void set_task_comm(struct task_struct *tsk, char *buf) int flush_old_exec(struct linux_binprm * bprm) { - char * name; - int i, ch, retval; - char tcomm[sizeof(current->comm)]; + int retval; /* * Make sure we have a private signal table and that @@ -964,6 +978,25 @@ int flush_old_exec(struct linux_binprm * bprm) bprm->mm = NULL; /* We're using it now */ + current->flags &= ~PF_RANDOMIZE; + flush_thread(); + current->personality &= ~bprm->per_clear; + + return 0; + +out: + return retval; +} +EXPORT_SYMBOL(flush_old_exec); + +void setup_new_exec(struct linux_binprm * bprm) +{ + int i, ch; + char * name; + char tcomm[sizeof(current->comm)]; + + arch_pick_mmap_layout(current->mm); + /* This is the point of no return */ current->sas_ss_sp = current->sas_ss_size = 0; @@ -985,9 +1018,6 @@ int flush_old_exec(struct linux_binprm * bprm) tcomm[i] = '\0'; set_task_comm(current, tcomm); - current->flags &= ~PF_RANDOMIZE; - flush_thread(); - /* Set the new mm task size. We have to do that late because it may * depend on TIF_32BIT which is only updated in flush_thread() on * some architectures like powerpc @@ -1003,8 +1033,6 @@ int flush_old_exec(struct linux_binprm * bprm) set_dumpable(current->mm, suid_dumpable); } - current->personality &= ~bprm->per_clear; - /* * Flush performance counters when crossing a * security domain: @@ -1019,14 +1047,8 @@ int flush_old_exec(struct linux_binprm * bprm) flush_signal_handlers(current, 0); flush_old_files(current->files); - - return 0; - -out: - return retval; } - -EXPORT_SYMBOL(flush_old_exec); +EXPORT_SYMBOL(setup_new_exec); /* * Prepare credentials and lock ->cred_guard_mutex. diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 698a8636d39..2afbcebeda7 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -738,13 +738,28 @@ static int exofs_write_begin_export(struct file *file, fsdata); } +static int exofs_write_end(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *page, void *fsdata) +{ + struct inode *inode = mapping->host; + /* According to comment in simple_write_end i_mutex is held */ + loff_t i_size = inode->i_size; + int ret; + + ret = simple_write_end(file, mapping,pos, len, copied, page, fsdata); + if (i_size != inode->i_size) + mark_inode_dirty(inode); + return ret; +} + const struct address_space_operations exofs_aops = { .readpage = exofs_readpage, .readpages = exofs_readpages, .writepage = exofs_writepage, .writepages = exofs_writepages, .write_begin = exofs_write_begin_export, - .write_end = simple_write_end, + .write_end = exofs_write_end, }; /****************************************************************************** diff --git a/fs/exofs/pnfs.h b/fs/exofs/pnfs.h index 423033addd1..c52e9888b8a 100644 --- a/fs/exofs/pnfs.h +++ b/fs/exofs/pnfs.h @@ -15,13 +15,7 @@ #ifndef __EXOFS_PNFS_H__ #define __EXOFS_PNFS_H__ -#if defined(CONFIG_PNFS) - - -/* FIXME: move this file to: linux/exportfs/pnfs_osd_xdr.h */ -#include "../nfs/objlayout/pnfs_osd_xdr.h" - -#else /* defined(CONFIG_PNFS) */ +#if ! defined(__PNFS_OSD_XDR_H__) enum pnfs_iomode { IOMODE_READ = 1, @@ -46,6 +40,6 @@ struct pnfs_osd_data_map { u32 odm_raid_algorithm; }; -#endif /* else defined(CONFIG_PNFS) */ +#endif /* ! defined(__PNFS_OSD_XDR_H__) */ #endif /* __EXOFS_PNFS_H__ */ diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index 9acf7e80813..9ed1bb1f319 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -28,6 +28,7 @@ config EXT4_FS config EXT4_USE_FOR_EXT23 bool "Use ext4 for ext2/ext3 file systems" + depends on EXT4_FS depends on EXT3_FS=n || EXT2_FS=n default y help diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c index 4df8621ec31..a60ab9aad57 100644 --- a/fs/ext4/block_validity.c +++ b/fs/ext4/block_validity.c @@ -16,7 +16,6 @@ #include <linux/module.h> #include <linux/swap.h> #include <linux/pagemap.h> -#include <linux/version.h> #include <linux/blkdev.h> #include <linux/mutex.h> #include "ext4.h" diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 56f9271ee8c..874d169a193 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -361,14 +361,11 @@ struct ext4_new_group_data { so set the magic i_delalloc_reserve_flag after taking the inode allocation semaphore for */ #define EXT4_GET_BLOCKS_DELALLOC_RESERVE 0x0004 - /* Call ext4_da_update_reserve_space() after successfully - allocating the blocks */ -#define EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE 0x0008 /* caller is from the direct IO path, request to creation of an unitialized extents if not allocated, split the uninitialized extent if blocks has been preallocated already*/ -#define EXT4_GET_BLOCKS_DIO 0x0010 -#define EXT4_GET_BLOCKS_CONVERT 0x0020 +#define EXT4_GET_BLOCKS_DIO 0x0008 +#define EXT4_GET_BLOCKS_CONVERT 0x0010 #define EXT4_GET_BLOCKS_DIO_CREATE_EXT (EXT4_GET_BLOCKS_DIO|\ EXT4_GET_BLOCKS_CREATE_UNINIT_EXT) /* Convert extent to initialized after direct IO complete */ @@ -699,6 +696,8 @@ struct ext4_inode_info { unsigned int i_reserved_meta_blocks; unsigned int i_allocated_meta_blocks; unsigned short i_delalloc_reserved_flag; + sector_t i_da_metadata_calc_last_lblock; + int i_da_metadata_calc_len; /* on-disk additional length */ __u16 i_extra_isize; @@ -1441,6 +1440,8 @@ extern int ext4_block_truncate_page(handle_t *handle, extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf); extern qsize_t *ext4_get_reserved_space(struct inode *inode); extern int flush_aio_dio_completed_IO(struct inode *inode); +extern void ext4_da_update_reserve_space(struct inode *inode, + int used, int quota_claim); /* ioctl.c */ extern long ext4_ioctl(struct file *, unsigned int, unsigned long); extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long); diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h index 2ca686454e8..bdb6ce7e2eb 100644 --- a/fs/ext4/ext4_extents.h +++ b/fs/ext4/ext4_extents.h @@ -225,7 +225,8 @@ static inline void ext4_ext_mark_initialized(struct ext4_extent *ext) ext->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ext)); } -extern int ext4_ext_calc_metadata_amount(struct inode *inode, int blocks); +extern int ext4_ext_calc_metadata_amount(struct inode *inode, + sector_t lblocks); extern ext4_fsblk_t ext_pblock(struct ext4_extent *ex); extern ext4_fsblk_t idx_pblock(struct ext4_extent_idx *); extern void ext4_ext_store_pblock(struct ext4_extent *, ext4_fsblk_t); diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 3a7928f825e..765a4826b11 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -296,29 +296,44 @@ static inline int ext4_ext_space_root_idx(struct inode *inode, int check) * to allocate @blocks * Worse case is one block per extent */ -int ext4_ext_calc_metadata_amount(struct inode *inode, int blocks) +int ext4_ext_calc_metadata_amount(struct inode *inode, sector_t lblock) { - int lcap, icap, rcap, leafs, idxs, num; - int newextents = blocks; - - rcap = ext4_ext_space_root_idx(inode, 0); - lcap = ext4_ext_space_block(inode, 0); - icap = ext4_ext_space_block_idx(inode, 0); + struct ext4_inode_info *ei = EXT4_I(inode); + int idxs, num = 0; - /* number of new leaf blocks needed */ - num = leafs = (newextents + lcap - 1) / lcap; + idxs = ((inode->i_sb->s_blocksize - sizeof(struct ext4_extent_header)) + / sizeof(struct ext4_extent_idx)); /* - * Worse case, we need separate index block(s) - * to link all new leaf blocks + * If the new delayed allocation block is contiguous with the + * previous da block, it can share index blocks with the + * previous block, so we only need to allocate a new index + * block every idxs leaf blocks. At ldxs**2 blocks, we need + * an additional index block, and at ldxs**3 blocks, yet + * another index blocks. */ - idxs = (leafs + icap - 1) / icap; - do { - num += idxs; - idxs = (idxs + icap - 1) / icap; - } while (idxs > rcap); + if (ei->i_da_metadata_calc_len && + ei->i_da_metadata_calc_last_lblock+1 == lblock) { + if ((ei->i_da_metadata_calc_len % idxs) == 0) + num++; + if ((ei->i_da_metadata_calc_len % (idxs*idxs)) == 0) + num++; + if ((ei->i_da_metadata_calc_len % (idxs*idxs*idxs)) == 0) { + num++; + ei->i_da_metadata_calc_len = 0; + } else + ei->i_da_metadata_calc_len++; + ei->i_da_metadata_calc_last_lblock++; + return num; + } - return num; + /* + * In the worst case we need a new set of index blocks at + * every level of the inode's extent tree. + */ + ei->i_da_metadata_calc_len = 1; + ei->i_da_metadata_calc_last_lblock = lblock; + return ext_depth(inode) + 1; } static int @@ -3023,6 +3038,14 @@ out: return err; } +static void unmap_underlying_metadata_blocks(struct block_device *bdev, + sector_t block, int count) +{ + int i; + for (i = 0; i < count; i++) + unmap_underlying_metadata(bdev, block + i); +} + static int ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode, ext4_lblk_t iblock, unsigned int max_blocks, @@ -3098,6 +3121,30 @@ out: } else allocated = ret; set_buffer_new(bh_result); + /* + * if we allocated more blocks than requested + * we need to make sure we unmap the extra block + * allocated. The actual needed block will get + * unmapped later when we find the buffer_head marked + * new. + */ + if (allocated > max_blocks) { + unmap_underlying_metadata_blocks(inode->i_sb->s_bdev, + newblock + max_blocks, + allocated - max_blocks); + allocated = max_blocks; + } + + /* + * If we have done fallocate with the offset that is already + * delayed allocated, we would have block reservation + * and quota reservation done in the delayed write path. + * But fallocate would have already updated quota and block + * count for this offset. So cancel these reservation + */ + if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) + ext4_da_update_reserve_space(inode, allocated, 0); + map_out: set_buffer_mapped(bh_result); out1: @@ -3190,7 +3237,13 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, * this situation is possible, though, _during_ tree modification; * this is why assert can't be put in ext4_ext_find_extent() */ - BUG_ON(path[depth].p_ext == NULL && depth != 0); + if (path[depth].p_ext == NULL && depth != 0) { + ext4_error(inode->i_sb, __func__, "bad extent address " + "inode: %lu, iblock: %d, depth: %d", + inode->i_ino, iblock, depth); + err = -EIO; + goto out2; + } eh = path[depth].p_hdr; ex = path[depth].p_ext; @@ -3327,9 +3380,18 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, /* previous routine could use block we allocated */ newblock = ext_pblock(&newex); allocated = ext4_ext_get_actual_len(&newex); + if (allocated > max_blocks) + allocated = max_blocks; set_buffer_new(bh_result); /* + * Update reserved blocks/metadata blocks after successful + * block allocation which had been deferred till now. + */ + if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) + ext4_da_update_reserve_space(inode, allocated, 1); + + /* * Cache the extent and update transaction to commit on fdatasync only * when it is _not_ an uninitialized extent. */ diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c index 0b22497d92e..98bd140aad0 100644 --- a/fs/ext4/fsync.c +++ b/fs/ext4/fsync.c @@ -88,9 +88,21 @@ int ext4_sync_file(struct file *file, struct dentry *dentry, int datasync) return ext4_force_commit(inode->i_sb); commit_tid = datasync ? ei->i_datasync_tid : ei->i_sync_tid; - if (jbd2_log_start_commit(journal, commit_tid)) + if (jbd2_log_start_commit(journal, commit_tid)) { + /* + * When the journal is on a different device than the + * fs data disk, we need to issue the barrier in + * writeback mode. (In ordered mode, the jbd2 layer + * will take care of issuing the barrier. In + * data=journal, all of the data blocks are written to + * the journal device.) + */ + if (ext4_should_writeback_data(inode) && + (journal->j_fs_dev != journal->j_dev) && + (journal->j_flags & JBD2_BARRIER)) + blkdev_issue_flush(inode->i_sb->s_bdev, NULL); jbd2_log_wait_commit(journal, commit_tid); - else if (journal->j_flags & JBD2_BARRIER) + } else if (journal->j_flags & JBD2_BARRIER) blkdev_issue_flush(inode->i_sb->s_bdev, NULL); return ret; } diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index ab807963a61..e11952404e0 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1009,86 +1009,114 @@ qsize_t *ext4_get_reserved_space(struct inode *inode) return &EXT4_I(inode)->i_reserved_quota; } #endif + /* * Calculate the number of metadata blocks need to reserve - * to allocate @blocks for non extent file based file + * to allocate a new block at @lblocks for non extent file based file */ -static int ext4_indirect_calc_metadata_amount(struct inode *inode, int blocks) +static int ext4_indirect_calc_metadata_amount(struct inode *inode, + sector_t lblock) { - int icap = EXT4_ADDR_PER_BLOCK(inode->i_sb); - int ind_blks, dind_blks, tind_blks; - - /* number of new indirect blocks needed */ - ind_blks = (blocks + icap - 1) / icap; + struct ext4_inode_info *ei = EXT4_I(inode); + int dind_mask = EXT4_ADDR_PER_BLOCK(inode->i_sb) - 1; + int blk_bits; - dind_blks = (ind_blks + icap - 1) / icap; + if (lblock < EXT4_NDIR_BLOCKS) + return 0; - tind_blks = 1; + lblock -= EXT4_NDIR_BLOCKS; - return ind_blks + dind_blks + tind_blks; + if (ei->i_da_metadata_calc_len && + (lblock & dind_mask) == ei->i_da_metadata_calc_last_lblock) { + ei->i_da_metadata_calc_len++; + return 0; + } + ei->i_da_metadata_calc_last_lblock = lblock & dind_mask; + ei->i_da_metadata_calc_len = 1; + blk_bits = roundup_pow_of_two(lblock + 1); + return (blk_bits / EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb)) + 1; } /* * Calculate the number of metadata blocks need to reserve - * to allocate given number of blocks + * to allocate a block located at @lblock */ -static int ext4_calc_metadata_amount(struct inode *inode, int blocks) +static int ext4_calc_metadata_amount(struct inode *inode, sector_t lblock) { - if (!blocks) - return 0; - if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) - return ext4_ext_calc_metadata_amount(inode, blocks); + return ext4_ext_calc_metadata_amount(inode, lblock); - return ext4_indirect_calc_metadata_amount(inode, blocks); + return ext4_indirect_calc_metadata_amount(inode, lblock); } -static void ext4_da_update_reserve_space(struct inode *inode, int used) +/* + * Called with i_data_sem down, which is important since we can call + * ext4_discard_preallocations() from here. + */ +void ext4_da_update_reserve_space(struct inode *inode, + int used, int quota_claim) { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); - int total, mdb, mdb_free, mdb_claim = 0; - - spin_lock(&EXT4_I(inode)->i_block_reservation_lock); - /* recalculate the number of metablocks still need to be reserved */ - total = EXT4_I(inode)->i_reserved_data_blocks - used; - mdb = ext4_calc_metadata_amount(inode, total); - - /* figure out how many metablocks to release */ - BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks); - mdb_free = EXT4_I(inode)->i_reserved_meta_blocks - mdb; - - if (mdb_free) { - /* Account for allocated meta_blocks */ - mdb_claim = EXT4_I(inode)->i_allocated_meta_blocks; - BUG_ON(mdb_free < mdb_claim); - mdb_free -= mdb_claim; - - /* update fs dirty blocks counter */ + struct ext4_inode_info *ei = EXT4_I(inode); + int mdb_free = 0, allocated_meta_blocks = 0; + + spin_lock(&ei->i_block_reservation_lock); + if (unlikely(used > ei->i_reserved_data_blocks)) { + ext4_msg(inode->i_sb, KERN_NOTICE, "%s: ino %lu, used %d " + "with only %d reserved data blocks\n", + __func__, inode->i_ino, used, + ei->i_reserved_data_blocks); + WARN_ON(1); + used = ei->i_reserved_data_blocks; + } + + /* Update per-inode reservations */ + ei->i_reserved_data_blocks -= used; + used += ei->i_allocated_meta_blocks; + ei->i_reserved_meta_blocks -= ei->i_allocated_meta_blocks; + allocated_meta_blocks = ei->i_allocated_meta_blocks; + ei->i_allocated_meta_blocks = 0; + percpu_counter_sub(&sbi->s_dirtyblocks_counter, used); + + if (ei->i_reserved_data_blocks == 0) { + /* + * We can release all of the reserved metadata blocks + * only when we have written all of the delayed + * allocation blocks. + */ + mdb_free = ei->i_reserved_meta_blocks; + ei->i_reserved_meta_blocks = 0; + ei->i_da_metadata_calc_len = 0; percpu_counter_sub(&sbi->s_dirtyblocks_counter, mdb_free); - EXT4_I(inode)->i_allocated_meta_blocks = 0; - EXT4_I(inode)->i_reserved_meta_blocks = mdb; } - - /* update per-inode reservations */ - BUG_ON(used > EXT4_I(inode)->i_reserved_data_blocks); - EXT4_I(inode)->i_reserved_data_blocks -= used; - percpu_counter_sub(&sbi->s_dirtyblocks_counter, used + mdb_claim); spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); - vfs_dq_claim_block(inode, used + mdb_claim); - - /* - * free those over-booking quota for metadata blocks - */ - if (mdb_free) - vfs_dq_release_reservation_block(inode, mdb_free); + /* Update quota subsystem */ + if (quota_claim) { + vfs_dq_claim_block(inode, used); + if (mdb_free) + vfs_dq_release_reservation_block(inode, mdb_free); + } else { + /* + * We did fallocate with an offset that is already delayed + * allocated. So on delayed allocated writeback we should + * not update the quota for allocated blocks. But then + * converting an fallocate region to initialized region would + * have caused a metadata allocation. So claim quota for + * that + */ + if (allocated_meta_blocks) + vfs_dq_claim_block(inode, allocated_meta_blocks); + vfs_dq_release_reservation_block(inode, mdb_free + used); + } /* * If we have done all the pending block allocations and if * there aren't any writers on the inode, we can discard the * inode's preallocations. */ - if (!total && (atomic_read(&inode->i_writecount) == 0)) + if ((ei->i_reserved_data_blocks == 0) && + (atomic_read(&inode->i_writecount) == 0)) ext4_discard_preallocations(inode); } @@ -1280,18 +1308,20 @@ int ext4_get_blocks(handle_t *handle, struct inode *inode, sector_t block, */ EXT4_I(inode)->i_state &= ~EXT4_STATE_EXT_MIGRATE; } - } + /* + * Update reserved blocks/metadata blocks after successful + * block allocation which had been deferred till now. We don't + * support fallocate for non extent files. So we can update + * reserve space here. + */ + if ((retval > 0) && + (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)) + ext4_da_update_reserve_space(inode, retval, 1); + } if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) EXT4_I(inode)->i_delalloc_reserved_flag = 0; - /* - * Update reserved blocks/metadata blocks after successful - * block allocation which had been deferred till now. - */ - if ((retval > 0) && (flags & EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE)) - ext4_da_update_reserve_space(inode, retval); - up_write((&EXT4_I(inode)->i_data_sem)); if (retval > 0 && buffer_mapped(bh)) { int ret = check_block_validity(inode, "file system " @@ -1797,11 +1827,15 @@ static int ext4_journalled_write_end(struct file *file, return ret ? ret : copied; } -static int ext4_da_reserve_space(struct inode *inode, int nrblocks) +/* + * Reserve a single block located at lblock + */ +static int ext4_da_reserve_space(struct inode *inode, sector_t lblock) { int retries = 0; struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); - unsigned long md_needed, mdblocks, total = 0; + struct ext4_inode_info *ei = EXT4_I(inode); + unsigned long md_needed, md_reserved; /* * recalculate the amount of metadata blocks to reserve @@ -1809,35 +1843,31 @@ static int ext4_da_reserve_space(struct inode *inode, int nrblocks) * worse case is one extent per block */ repeat: - spin_lock(&EXT4_I(inode)->i_block_reservation_lock); - total = EXT4_I(inode)->i_reserved_data_blocks + nrblocks; - mdblocks = ext4_calc_metadata_amount(inode, total); - BUG_ON(mdblocks < EXT4_I(inode)->i_reserved_meta_blocks); - - md_needed = mdblocks - EXT4_I(inode)->i_reserved_meta_blocks; - total = md_needed + nrblocks; - spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); + spin_lock(&ei->i_block_reservation_lock); + md_reserved = ei->i_reserved_meta_blocks; + md_needed = ext4_calc_metadata_amount(inode, lblock); + spin_unlock(&ei->i_block_reservation_lock); /* * Make quota reservation here to prevent quota overflow * later. Real quota accounting is done at pages writeout * time. */ - if (vfs_dq_reserve_block(inode, total)) + if (vfs_dq_reserve_block(inode, md_needed + 1)) return -EDQUOT; - if (ext4_claim_free_blocks(sbi, total)) { - vfs_dq_release_reservation_block(inode, total); + if (ext4_claim_free_blocks(sbi, md_needed + 1)) { + vfs_dq_release_reservation_block(inode, md_needed + 1); if (ext4_should_retry_alloc(inode->i_sb, &retries)) { yield(); goto repeat; } return -ENOSPC; } - spin_lock(&EXT4_I(inode)->i_block_reservation_lock); - EXT4_I(inode)->i_reserved_data_blocks += nrblocks; - EXT4_I(inode)->i_reserved_meta_blocks += md_needed; - spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); + spin_lock(&ei->i_block_reservation_lock); + ei->i_reserved_data_blocks++; + ei->i_reserved_meta_blocks += md_needed; + spin_unlock(&ei->i_block_reservation_lock); return 0; /* success */ } @@ -1845,49 +1875,46 @@ repeat: static void ext4_da_release_space(struct inode *inode, int to_free) { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); - int total, mdb, mdb_free, release; + struct ext4_inode_info *ei = EXT4_I(inode); if (!to_free) return; /* Nothing to release, exit */ spin_lock(&EXT4_I(inode)->i_block_reservation_lock); - if (!EXT4_I(inode)->i_reserved_data_blocks) { + if (unlikely(to_free > ei->i_reserved_data_blocks)) { /* - * if there is no reserved blocks, but we try to free some - * then the counter is messed up somewhere. - * but since this function is called from invalidate - * page, it's harmless to return without any action + * if there aren't enough reserved blocks, then the + * counter is messed up somewhere. Since this + * function is called from invalidate page, it's + * harmless to return without any action. */ - printk(KERN_INFO "ext4 delalloc try to release %d reserved " - "blocks for inode %lu, but there is no reserved " - "data blocks\n", to_free, inode->i_ino); - spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); - return; + ext4_msg(inode->i_sb, KERN_NOTICE, "ext4_da_release_space: " + "ino %lu, to_free %d with only %d reserved " + "data blocks\n", inode->i_ino, to_free, + ei->i_reserved_data_blocks); + WARN_ON(1); + to_free = ei->i_reserved_data_blocks; } + ei->i_reserved_data_blocks -= to_free; - /* recalculate the number of metablocks still need to be reserved */ - total = EXT4_I(inode)->i_reserved_data_blocks - to_free; - mdb = ext4_calc_metadata_amount(inode, total); - - /* figure out how many metablocks to release */ - BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks); - mdb_free = EXT4_I(inode)->i_reserved_meta_blocks - mdb; - - release = to_free + mdb_free; - - /* update fs dirty blocks counter for truncate case */ - percpu_counter_sub(&sbi->s_dirtyblocks_counter, release); + if (ei->i_reserved_data_blocks == 0) { + /* + * We can release all of the reserved metadata blocks + * only when we have written all of the delayed + * allocation blocks. + */ + to_free += ei->i_reserved_meta_blocks; + ei->i_reserved_meta_blocks = 0; + ei->i_da_metadata_calc_len = 0; + } - /* update per-inode reservations */ - BUG_ON(to_free > EXT4_I(inode)->i_reserved_data_blocks); - EXT4_I(inode)->i_reserved_data_blocks -= to_free; + /* update fs dirty blocks counter */ + percpu_counter_sub(&sbi->s_dirtyblocks_counter, to_free); - BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks); - EXT4_I(inode)->i_reserved_meta_blocks = mdb; spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); - vfs_dq_release_reservation_block(inode, release); + vfs_dq_release_reservation_block(inode, to_free); } static void ext4_da_page_release_reservation(struct page *page, @@ -2192,10 +2219,10 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd) * variables are updated after the blocks have been allocated. */ new.b_state = 0; - get_blocks_flags = (EXT4_GET_BLOCKS_CREATE | - EXT4_GET_BLOCKS_DELALLOC_RESERVE); + get_blocks_flags = EXT4_GET_BLOCKS_CREATE; if (mpd->b_state & (1 << BH_Delay)) - get_blocks_flags |= EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE; + get_blocks_flags |= EXT4_GET_BLOCKS_DELALLOC_RESERVE; + blks = ext4_get_blocks(handle, mpd->inode, next, max_blocks, &new, get_blocks_flags); if (blks < 0) { @@ -2493,7 +2520,7 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock, * XXX: __block_prepare_write() unmaps passed block, * is it OK? */ - ret = ext4_da_reserve_space(inode, 1); + ret = ext4_da_reserve_space(inode, iblock); if (ret) /* not enough space to reserve */ return ret; @@ -2967,8 +2994,7 @@ retry: out_writepages: if (!no_nrwrite_index_update) wbc->no_nrwrite_index_update = 0; - if (wbc->nr_to_write > nr_to_writebump) - wbc->nr_to_write -= nr_to_writebump; + wbc->nr_to_write -= nr_to_writebump; wbc->range_start = range_start; trace_ext4_da_writepages_result(inode, wbc, ret, pages_written); return ret; @@ -2993,11 +3019,18 @@ static int ext4_nonda_switch(struct super_block *sb) if (2 * free_blocks < 3 * dirty_blocks || free_blocks < (dirty_blocks + EXT4_FREEBLOCKS_WATERMARK)) { /* - * free block count is less that 150% of dirty blocks - * or free blocks is less that watermark + * free block count is less than 150% of dirty blocks + * or free blocks is less than watermark */ return 1; } + /* + * Even if we don't switch but are nearing capacity, + * start pushing delalloc when 1/2 of free blocks are dirty. + */ + if (free_blocks < 2 * dirty_blocks) + writeback_inodes_sb_if_idle(sb); + return 0; } @@ -3005,7 +3038,7 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) { - int ret, retries = 0; + int ret, retries = 0, quota_retries = 0; struct page *page; pgoff_t index; unsigned from, to; @@ -3064,6 +3097,22 @@ retry: if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) goto retry; + + if ((ret == -EDQUOT) && + EXT4_I(inode)->i_reserved_meta_blocks && + (quota_retries++ < 3)) { + /* + * Since we often over-estimate the number of meta + * data blocks required, we may sometimes get a + * spurios out of quota error even though there would + * be enough space once we write the data blocks and + * find out how many meta data blocks were _really_ + * required. So try forcing the inode write to see if + * that helps. + */ + write_inode_now(inode, (quota_retries == 3)); + goto retry; + } out: return ret; } diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h index 0ca811061bc..436521cae45 100644 --- a/fs/ext4/mballoc.h +++ b/fs/ext4/mballoc.h @@ -17,7 +17,6 @@ #include <linux/proc_fs.h> #include <linux/pagemap.h> #include <linux/seq_file.h> -#include <linux/version.h> #include <linux/blkdev.h> #include <linux/mutex.h> #include "ext4_jbd2.h" diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 6ed9aa91f27..735c20d5fd5 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -702,6 +702,7 @@ static struct inode *ext4_alloc_inode(struct super_block *sb) ei->i_reserved_data_blocks = 0; ei->i_reserved_meta_blocks = 0; ei->i_allocated_meta_blocks = 0; + ei->i_da_metadata_calc_len = 0; ei->i_delalloc_reserved_flag = 0; spin_lock_init(&(ei->i_block_reservation_lock)); #ifdef CONFIG_QUOTA @@ -2174,9 +2175,9 @@ static ssize_t lifetime_write_kbytes_show(struct ext4_attr *a, struct super_block *sb = sbi->s_buddy_cache->i_sb; return snprintf(buf, PAGE_SIZE, "%llu\n", - sbi->s_kbytes_written + + (unsigned long long)(sbi->s_kbytes_written + ((part_stat_read(sb->s_bdev->bd_part, sectors[1]) - - EXT4_SB(sb)->s_sectors_written_start) >> 1)); + EXT4_SB(sb)->s_sectors_written_start) >> 1))); } static ssize_t inode_readahead_blks_store(struct ext4_attr *a, @@ -4005,6 +4006,7 @@ static inline void unregister_as_ext2(void) { unregister_filesystem(&ext2_fs_type); } +MODULE_ALIAS("ext2"); #else static inline void register_as_ext2(void) { } static inline void unregister_as_ext2(void) { } @@ -4031,6 +4033,7 @@ static inline void unregister_as_ext3(void) { unregister_filesystem(&ext3_fs_type); } +MODULE_ALIAS("ext3"); #else static inline void register_as_ext3(void) { } static inline void unregister_as_ext3(void) { } diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 83218bebbc7..f3a2f7ed45a 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1332,6 +1332,8 @@ retry: goto cleanup; kfree(b_entry_name); kfree(buffer); + b_entry_name = NULL; + buffer = NULL; brelse(is->iloc.bh); kfree(is); kfree(bs); diff --git a/fs/fcntl.c b/fs/fcntl.c index 2cf93ec40a6..97e01dc0d95 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -618,60 +618,90 @@ static DEFINE_RWLOCK(fasync_lock); static struct kmem_cache *fasync_cache __read_mostly; /* - * fasync_helper() is used by almost all character device drivers - * to set up the fasync queue. It returns negative on error, 0 if it did - * no changes and positive if it added/deleted the entry. + * Remove a fasync entry. If successfully removed, return + * positive and clear the FASYNC flag. If no entry exists, + * do nothing and return 0. + * + * NOTE! It is very important that the FASYNC flag always + * match the state "is the filp on a fasync list". + * + * We always take the 'filp->f_lock', in since fasync_lock + * needs to be irq-safe. */ -int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fapp) +static int fasync_remove_entry(struct file *filp, struct fasync_struct **fapp) { struct fasync_struct *fa, **fp; - struct fasync_struct *new = NULL; int result = 0; - if (on) { - new = kmem_cache_alloc(fasync_cache, GFP_KERNEL); - if (!new) - return -ENOMEM; + spin_lock(&filp->f_lock); + write_lock_irq(&fasync_lock); + for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) { + if (fa->fa_file != filp) + continue; + *fp = fa->fa_next; + kmem_cache_free(fasync_cache, fa); + filp->f_flags &= ~FASYNC; + result = 1; + break; } + write_unlock_irq(&fasync_lock); + spin_unlock(&filp->f_lock); + return result; +} + +/* + * Add a fasync entry. Return negative on error, positive if + * added, and zero if did nothing but change an existing one. + * + * NOTE! It is very important that the FASYNC flag always + * match the state "is the filp on a fasync list". + */ +static int fasync_add_entry(int fd, struct file *filp, struct fasync_struct **fapp) +{ + struct fasync_struct *new, *fa, **fp; + int result = 0; + + new = kmem_cache_alloc(fasync_cache, GFP_KERNEL); + if (!new) + return -ENOMEM; - /* - * We need to take f_lock first since it's not an IRQ-safe - * lock. - */ spin_lock(&filp->f_lock); write_lock_irq(&fasync_lock); for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) { - if (fa->fa_file == filp) { - if(on) { - fa->fa_fd = fd; - kmem_cache_free(fasync_cache, new); - } else { - *fp = fa->fa_next; - kmem_cache_free(fasync_cache, fa); - result = 1; - } - goto out; - } + if (fa->fa_file != filp) + continue; + fa->fa_fd = fd; + kmem_cache_free(fasync_cache, new); + goto out; } - if (on) { - new->magic = FASYNC_MAGIC; - new->fa_file = filp; - new->fa_fd = fd; - new->fa_next = *fapp; - *fapp = new; - result = 1; - } + new->magic = FASYNC_MAGIC; + new->fa_file = filp; + new->fa_fd = fd; + new->fa_next = *fapp; + *fapp = new; + result = 1; + filp->f_flags |= FASYNC; + out: - if (on) - filp->f_flags |= FASYNC; - else - filp->f_flags &= ~FASYNC; write_unlock_irq(&fasync_lock); spin_unlock(&filp->f_lock); return result; } +/* + * fasync_helper() is used by almost all character device drivers + * to set up the fasync queue, and for regular files by the file + * lease code. It returns negative on error, 0 if it did no changes + * and positive if it added/deleted the entry. + */ +int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fapp) +{ + if (!on) + return fasync_remove_entry(filp, fapp); + return fasync_add_entry(fd, filp, fapp); +} + EXPORT_SYMBOL(fasync_helper); void __kill_fasync(struct fasync_struct *fa, int sig, int band) diff --git a/fs/file_table.c b/fs/file_table.c index 69652c5bd5f..b98404b5438 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -253,6 +253,7 @@ void __fput(struct file *file) if (file->f_op && file->f_op->release) file->f_op->release(inode, file); security_file_free(file); + ima_file_free(file); if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL)) cdev_put(inode->i_cdev); fops_put(file->f_op); diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 49bc1b8e8f1..1a7c42c64ff 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -242,6 +242,7 @@ static void bdi_sync_writeback(struct backing_dev_info *bdi, /** * bdi_start_writeback - start writeback * @bdi: the backing device to write from + * @sb: write inodes from this super_block * @nr_pages: the number of pages to write * * Description: @@ -1187,6 +1188,23 @@ void writeback_inodes_sb(struct super_block *sb) EXPORT_SYMBOL(writeback_inodes_sb); /** + * writeback_inodes_sb_if_idle - start writeback if none underway + * @sb: the superblock + * + * Invoke writeback_inodes_sb if no writeback is currently underway. + * Returns 1 if writeback was started, 0 if not. + */ +int writeback_inodes_sb_if_idle(struct super_block *sb) +{ + if (!writeback_in_progress(sb->s_bdi)) { + writeback_inodes_sb(sb); + return 1; + } else + return 0; +} +EXPORT_SYMBOL(writeback_inodes_sb_if_idle); + +/** * sync_inodes_sb - sync sb inode pages * @sb: the superblock * diff --git a/fs/fuse/file.c b/fs/fuse/file.c index c18913a777a..a9f5e137f1d 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -828,6 +828,9 @@ static ssize_t fuse_fill_write_pages(struct fuse_req *req, if (!page) break; + if (mapping_writably_mapped(mapping)) + flush_dcache_page(page); + pagefault_disable(); tmp = iov_iter_copy_from_user_atomic(page, ii, offset, bytes); pagefault_enable(); diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 6d47379e794..583e823307a 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -541,7 +541,7 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock, *ptr++ = cpu_to_be64(bn++); break; } - } while (state != ALLOC_DATA); + } while ((state != ALLOC_DATA) || !dblock); ip->i_height = height; gfs2_add_inode_blocks(&ip->i_inode, alloced); diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 4eb308aa323..a6abbae8a27 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -569,6 +569,40 @@ static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync) return ret; } +/** + * gfs2_file_aio_write - Perform a write to a file + * @iocb: The io context + * @iov: The data to write + * @nr_segs: Number of @iov segments + * @pos: The file position + * + * We have to do a lock/unlock here to refresh the inode size for + * O_APPEND writes, otherwise we can land up writing at the wrong + * offset. There is still a race, but provided the app is using its + * own file locking, this will make O_APPEND work as expected. + * + */ + +static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov, + unsigned long nr_segs, loff_t pos) +{ + struct file *file = iocb->ki_filp; + + if (file->f_flags & O_APPEND) { + struct dentry *dentry = file->f_dentry; + struct gfs2_inode *ip = GFS2_I(dentry->d_inode); + struct gfs2_holder gh; + int ret; + + ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh); + if (ret) + return ret; + gfs2_glock_dq_uninit(&gh); + } + + return generic_file_aio_write(iocb, iov, nr_segs, pos); +} + #ifdef CONFIG_GFS2_FS_LOCKING_DLM /** @@ -711,7 +745,7 @@ const struct file_operations gfs2_file_fops = { .read = do_sync_read, .aio_read = generic_file_aio_read, .write = do_sync_write, - .aio_write = generic_file_aio_write, + .aio_write = gfs2_file_aio_write, .unlocked_ioctl = gfs2_ioctl, .mmap = gfs2_mmap, .open = gfs2_open, @@ -741,7 +775,7 @@ const struct file_operations gfs2_file_fops_nolock = { .read = do_sync_read, .aio_read = generic_file_aio_read, .write = do_sync_write, - .aio_write = generic_file_aio_write, + .aio_write = gfs2_file_aio_write, .unlocked_ioctl = gfs2_ioctl, .mmap = gfs2_mmap, .open = gfs2_open, diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index f455a03a09e..f4266332593 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -769,6 +769,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, if (!gl) return -ENOMEM; + atomic_inc(&sdp->sd_glock_disposal); gl->gl_flags = 0; gl->gl_name = name; atomic_set(&gl->gl_ref, 1); @@ -1538,6 +1539,9 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp) up_write(&gfs2_umount_flush_sem); msleep(10); } + flush_workqueue(glock_workqueue); + wait_event(sdp->sd_glock_wait, atomic_read(&sdp->sd_glock_disposal) == 0); + gfs2_dump_lockstate(sdp); } void gfs2_glock_finish_truncate(struct gfs2_inode *ip) diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h index 13f0bd22813..c0262faf472 100644 --- a/fs/gfs2/glock.h +++ b/fs/gfs2/glock.h @@ -123,7 +123,7 @@ struct lm_lockops { int (*lm_mount) (struct gfs2_sbd *sdp, const char *fsname); void (*lm_unmount) (struct gfs2_sbd *sdp); void (*lm_withdraw) (struct gfs2_sbd *sdp); - void (*lm_put_lock) (struct kmem_cache *cachep, void *gl); + void (*lm_put_lock) (struct kmem_cache *cachep, struct gfs2_glock *gl); unsigned int (*lm_lock) (struct gfs2_glock *gl, unsigned int req_state, unsigned int flags); void (*lm_cancel) (struct gfs2_glock *gl); diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 4792200978c..bc0ad158e6b 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -544,6 +544,8 @@ struct gfs2_sbd { struct gfs2_holder sd_live_gh; struct gfs2_glock *sd_rename_gl; struct gfs2_glock *sd_trans_gl; + wait_queue_head_t sd_glock_wait; + atomic_t sd_glock_disposal; /* Inode Stuff */ diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index 46df988323b..0e5e0e7022e 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -21,6 +21,7 @@ static void gdlm_ast(void *arg) { struct gfs2_glock *gl = arg; unsigned ret = gl->gl_state; + struct gfs2_sbd *sdp = gl->gl_sbd; BUG_ON(gl->gl_lksb.sb_flags & DLM_SBF_DEMOTED); @@ -30,6 +31,8 @@ static void gdlm_ast(void *arg) switch (gl->gl_lksb.sb_status) { case -DLM_EUNLOCK: /* Unlocked, so glock can be freed */ kmem_cache_free(gfs2_glock_cachep, gl); + if (atomic_dec_and_test(&sdp->sd_glock_disposal)) + wake_up(&sdp->sd_glock_wait); return; case -DLM_ECANCEL: /* Cancel while getting lock */ ret |= LM_OUT_CANCELED; @@ -164,14 +167,16 @@ static unsigned int gdlm_lock(struct gfs2_glock *gl, return LM_OUT_ASYNC; } -static void gdlm_put_lock(struct kmem_cache *cachep, void *ptr) +static void gdlm_put_lock(struct kmem_cache *cachep, struct gfs2_glock *gl) { - struct gfs2_glock *gl = ptr; - struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct; + struct gfs2_sbd *sdp = gl->gl_sbd; + struct lm_lockstruct *ls = &sdp->sd_lockstruct; int error; if (gl->gl_lksb.sb_lkid == 0) { kmem_cache_free(cachep, gl); + if (atomic_dec_and_test(&sdp->sd_glock_disposal)) + wake_up(&sdp->sd_glock_wait); return; } diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index cb8d7a93d5e..6f68a5f18eb 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -121,7 +121,7 @@ struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp) if (aspace) { mapping_set_gfp_mask(aspace->i_mapping, GFP_NOFS); aspace->i_mapping->a_ops = &aspace_aops; - aspace->i_size = ~0ULL; + aspace->i_size = MAX_LFS_FILESIZE; ip = GFS2_I(aspace); clear_bit(GIF_USER, &ip->i_flags); insert_inode_hash(aspace); diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index edfee24f363..a86ed638156 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -82,6 +82,8 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) gfs2_tune_init(&sdp->sd_tune); + init_waitqueue_head(&sdp->sd_glock_wait); + atomic_set(&sdp->sd_glock_disposal, 0); spin_lock_init(&sdp->sd_statfs_spin); spin_lock_init(&sdp->sd_rindex_spin); @@ -723,7 +725,7 @@ static int init_journal(struct gfs2_sbd *sdp, int undo) goto fail; } - error = -EINVAL; + error = -EUSERS; if (!gfs2_jindex_size(sdp)) { fs_err(sdp, "no journals!\n"); goto fail_jindex; @@ -983,9 +985,17 @@ static const match_table_t nolock_tokens = { { Opt_err, NULL }, }; +static void nolock_put_lock(struct kmem_cache *cachep, struct gfs2_glock *gl) +{ + struct gfs2_sbd *sdp = gl->gl_sbd; + kmem_cache_free(cachep, gl); + if (atomic_dec_and_test(&sdp->sd_glock_disposal)) + wake_up(&sdp->sd_glock_wait); +} + static const struct lm_lockops nolock_ops = { .lm_proto_name = "lock_nolock", - .lm_put_lock = kmem_cache_free, + .lm_put_lock = nolock_put_lock, .lm_tokens = &nolock_tokens, }; diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c index 247436c10de..84350e1be66 100644 --- a/fs/gfs2/ops_inode.c +++ b/fs/gfs2/ops_inode.c @@ -748,7 +748,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, struct gfs2_rgrpd *nrgd; unsigned int num_gh; int dir_rename = 0; - int alloc_required; + int alloc_required = 0; unsigned int x; int error; @@ -867,7 +867,9 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, goto out_gunlock; } - alloc_required = error = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); + if (nip == NULL) + alloc_required = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); + error = alloc_required; if (error < 0) goto out_gunlock; error = 0; @@ -1086,7 +1088,8 @@ static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd) error = vfs_follow_link(nd, buf); if (buf != array) kfree(buf); - } + } else + path_put(&nd->path); return ERR_PTR(error); } diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 0608f490c29..503b842f3ba 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -591,11 +591,7 @@ static int gfs2_ri_update(struct gfs2_inode *ip) u64 rgrp_count = ip->i_disksize; int error; - if (do_div(rgrp_count, sizeof(struct gfs2_rindex))) { - gfs2_consist_inode(ip); - return -EIO; - } - + do_div(rgrp_count, sizeof(struct gfs2_rindex)); clear_rgrpdi(sdp); file_ra_state_init(&ra_state, inode->i_mapping); @@ -915,7 +911,7 @@ void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd) struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip) { BUG_ON(ip->i_alloc != NULL); - ip->i_alloc = kzalloc(sizeof(struct gfs2_alloc), GFP_KERNEL); + ip->i_alloc = kzalloc(sizeof(struct gfs2_alloc), GFP_NOFS); return ip->i_alloc; } diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index c282ad41f3d..b9dd3da22c0 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -21,6 +21,7 @@ #include <linux/gfs2_ondisk.h> #include <linux/crc32.h> #include <linux/time.h> +#include <linux/wait.h> #include "gfs2.h" #include "incore.h" diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c index 8a04108e0c2..c2ebdf2c01d 100644 --- a/fs/gfs2/xattr.c +++ b/fs/gfs2/xattr.c @@ -1296,6 +1296,7 @@ fail: int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) { + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); struct gfs2_ea_location el; struct buffer_head *dibh; int error; @@ -1305,16 +1306,17 @@ int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) return error; if (GFS2_EA_IS_STUFFED(el.el_ea)) { - error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0); - if (error) - return error; - - gfs2_trans_add_bh(ip->i_gl, el.el_bh, 1); - memcpy(GFS2_EA2DATA(el.el_ea), data, - GFS2_EA_DATA_LEN(el.el_ea)); - } else + error = gfs2_trans_begin(sdp, RES_DINODE + RES_EATTR, 0); + if (error == 0) { + gfs2_trans_add_bh(ip->i_gl, el.el_bh, 1); + memcpy(GFS2_EA2DATA(el.el_ea), data, + GFS2_EA_DATA_LEN(el.el_ea)); + } + } else { error = ea_acl_chmod_unstuffed(ip, el.el_ea, data); + } + brelse(el.el_bh); if (error) return error; @@ -1327,8 +1329,7 @@ int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) brelse(dibh); } - gfs2_trans_end(GFS2_SB(&ip->i_inode)); - + gfs2_trans_end(sdp); return error; } diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c index a5089a6dd67..7239efc690d 100644 --- a/fs/hppfs/hppfs.c +++ b/fs/hppfs/hppfs.c @@ -646,22 +646,27 @@ static const struct super_operations hppfs_sbops = { static int hppfs_readlink(struct dentry *dentry, char __user *buffer, int buflen) { - struct dentry *proc_dentry; - - proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; + struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; return proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer, buflen); } static void *hppfs_follow_link(struct dentry *dentry, struct nameidata *nd) { - struct dentry *proc_dentry; - - proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; + struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; return proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd); } +static void hppfs_put_link(struct dentry *dentry, struct nameidata *nd, + void *cookie) +{ + struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; + + if (proc_dentry->d_inode->i_op->put_link) + proc_dentry->d_inode->i_op->put_link(proc_dentry, nd, cookie); +} + static const struct inode_operations hppfs_dir_iops = { .lookup = hppfs_lookup, }; @@ -669,6 +674,7 @@ static const struct inode_operations hppfs_dir_iops = { static const struct inode_operations hppfs_link_iops = { .readlink = hppfs_readlink, .follow_link = hppfs_follow_link, + .put_link = hppfs_put_link, }; static struct inode *get_inode(struct super_block *sb, struct dentry *dentry) diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index ca0f5eb62b2..88684937095 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -22,6 +22,7 @@ #include <linux/jbd2.h> #include <linux/errno.h> #include <linux/slab.h> +#include <linux/blkdev.h> #include <trace/events/jbd2.h> /* @@ -515,6 +516,20 @@ int jbd2_cleanup_journal_tail(journal_t *journal) journal->j_tail_sequence = first_tid; journal->j_tail = blocknr; spin_unlock(&journal->j_state_lock); + + /* + * If there is an external journal, we need to make sure that + * any data blocks that were recently written out --- perhaps + * by jbd2_log_do_checkpoint() --- are flushed out before we + * drop the transactions from the external journal. It's + * unlikely this will be necessary, especially with a + * appropriately sized journal, but we need this to guarantee + * correctness. Fortunately jbd2_cleanup_journal_tail() + * doesn't get called all that often. + */ + if ((journal->j_fs_dev != journal->j_dev) && + (journal->j_flags & JBD2_BARRIER)) + blkdev_issue_flush(journal->j_fs_dev, NULL); if (!(journal->j_flags & JBD2_ABORT)) jbd2_journal_update_superblock(journal, 1); return 0; diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 6a10238d2c6..1bc74b6f26d 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -259,6 +259,7 @@ static int journal_submit_data_buffers(journal_t *journal, ret = err; spin_lock(&journal->j_list_lock); J_ASSERT(jinode->i_transaction == commit_transaction); + commit_transaction->t_flushed_data_blocks = 1; jinode->i_flags &= ~JI_COMMIT_RUNNING; wake_up_bit(&jinode->i_flags, __JI_COMMIT_RUNNING); } @@ -708,8 +709,17 @@ start_journal_io: } } - /* Done it all: now write the commit record asynchronously. */ + /* + * If the journal is not located on the file system device, + * then we must flush the file system device before we issue + * the commit record + */ + if (commit_transaction->t_flushed_data_blocks && + (journal->j_fs_dev != journal->j_dev) && + (journal->j_flags & JBD2_BARRIER)) + blkdev_issue_flush(journal->j_fs_dev, NULL); + /* Done it all: now write the commit record asynchronously. */ if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) { err = journal_submit_commit_record(journal, commit_transaction, @@ -720,13 +730,6 @@ start_journal_io: blkdev_issue_flush(journal->j_dev, NULL); } - /* - * This is the right place to wait for data buffers both for ASYNC - * and !ASYNC commit. If commit is ASYNC, we need to wait only after - * the commit block went to disk (which happens above). If commit is - * SYNC, we need to wait for data buffers before we start writing - * commit block, which happens below in such setting. - */ err = journal_finish_inode_data_buffers(journal, commit_transaction); if (err) { printk(KERN_WARNING diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 17af879e6e9..ac0d027595d 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -814,7 +814,7 @@ static journal_t * journal_init_common (void) journal_t *journal; int err; - journal = kzalloc(sizeof(*journal), GFP_KERNEL|__GFP_NOFAIL); + journal = kzalloc(sizeof(*journal), GFP_KERNEL); if (!journal) goto fail; diff --git a/fs/namei.c b/fs/namei.c index 68921d9b530..a4855af776a 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -232,6 +232,7 @@ int generic_permission(struct inode *inode, int mask, /* * Searching includes executable on directories, else just read. */ + mask &= MAY_READ | MAY_WRITE | MAY_EXEC; if (mask == MAY_READ || (S_ISDIR(inode->i_mode) && !(mask & MAY_WRITE))) if (capable(CAP_DAC_READ_SEARCH)) return 0; @@ -560,6 +561,7 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata dget(dentry); } mntget(path->mnt); + nd->last_type = LAST_BIND; cookie = dentry->d_inode->i_op->follow_link(dentry, nd); error = PTR_ERR(cookie); if (!IS_ERR(cookie)) { @@ -821,6 +823,17 @@ fail: } /* + * This is a temporary kludge to deal with "automount" symlinks; proper + * solution is to trigger them on follow_mount(), so that do_lookup() + * would DTRT. To be killed before 2.6.34-final. + */ +static inline int follow_on_final(struct inode *inode, unsigned lookup_flags) +{ + return inode && unlikely(inode->i_op->follow_link) && + ((lookup_flags & LOOKUP_FOLLOW) || S_ISDIR(inode->i_mode)); +} + +/* * Name resolution. * This is the basic name resolution function, turning a pathname into * the final dentry. We expect 'base' to be positive and a directory. @@ -940,8 +953,7 @@ last_component: if (err) break; inode = next.dentry->d_inode; - if ((lookup_flags & LOOKUP_FOLLOW) - && inode && inode->i_op->follow_link) { + if (follow_on_final(inode, lookup_flags)) { err = do_follow_link(&next, nd); if (err) goto return_err; @@ -1602,11 +1614,12 @@ struct file *do_filp_open(int dfd, const char *pathname, struct file *filp; struct nameidata nd; int error; - struct path path, save; + struct path path; struct dentry *dir; int count = 0; int will_truncate; int flag = open_to_namei_flags(open_flag); + int force_reval = 0; /* * O_SYNC is implemented as __O_SYNC|O_DSYNC. As many places only @@ -1618,7 +1631,7 @@ struct file *do_filp_open(int dfd, const char *pathname, open_flag |= O_DSYNC; if (!acc_mode) - acc_mode = MAY_OPEN | ACC_MODE(flag); + acc_mode = MAY_OPEN | ACC_MODE(open_flag); /* O_TRUNC implies we need access checks for write permissions */ if (flag & O_TRUNC) @@ -1658,9 +1671,12 @@ struct file *do_filp_open(int dfd, const char *pathname, /* * Create - we need to know the parent. */ +reval: error = path_init(dfd, pathname, LOOKUP_PARENT, &nd); if (error) return ERR_PTR(error); + if (force_reval) + nd.flags |= LOOKUP_REVAL; error = path_walk(pathname, &nd); if (error) { if (nd.root.mnt) @@ -1730,8 +1746,7 @@ do_last: if (nd.root.mnt) path_put(&nd.root); if (!IS_ERR(filp)) { - error = ima_path_check(&filp->f_path, filp->f_mode & - (MAY_READ | MAY_WRITE | MAY_EXEC)); + error = ima_file_check(filp, acc_mode); if (error) { fput(filp); filp = ERR_PTR(error); @@ -1791,8 +1806,7 @@ ok: } filp = nameidata_to_filp(&nd); if (!IS_ERR(filp)) { - error = ima_path_check(&filp->f_path, filp->f_mode & - (MAY_READ | MAY_WRITE | MAY_EXEC)); + error = ima_file_check(filp, acc_mode); if (error) { fput(filp); filp = ERR_PTR(error); @@ -1852,17 +1866,7 @@ do_link: error = security_inode_follow_link(path.dentry, &nd); if (error) goto exit_dput; - save = nd.path; - path_get(&save); error = __do_follow_link(&path, &nd); - if (error == -ESTALE) { - /* nd.path had been dropped */ - nd.path = save; - path_get(&nd.path); - nd.flags |= LOOKUP_REVAL; - error = __do_follow_link(&path, &nd); - } - path_put(&save); path_put(&path); if (error) { /* Does someone understand code flow here? Or it is only @@ -1872,6 +1876,10 @@ do_link: release_open_intent(&nd); if (nd.root.mnt) path_put(&nd.root); + if (error == -ESTALE && !force_reval) { + force_reval = 1; + goto reval; + } return ERR_PTR(error); } nd.flags &= ~LOOKUP_PARENT; diff --git a/fs/namespace.c b/fs/namespace.c index 7d70d63ceb2..c768f733c8d 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -965,10 +965,12 @@ EXPORT_SYMBOL(may_umount_tree); int may_umount(struct vfsmount *mnt) { int ret = 1; + down_read(&namespace_sem); spin_lock(&vfsmount_lock); if (propagate_mount_busy(mnt, 2)) ret = 0; spin_unlock(&vfsmount_lock); + up_read(&namespace_sem); return ret; } @@ -1352,12 +1354,12 @@ static int attach_recursive_mnt(struct vfsmount *source_mnt, if (err) goto out_cleanup_ids; + spin_lock(&vfsmount_lock); + if (IS_MNT_SHARED(dest_mnt)) { for (p = source_mnt; p; p = next_mnt(p, source_mnt)) set_mnt_shared(p); } - - spin_lock(&vfsmount_lock); if (parent_path) { detach_mnt(source_mnt, parent_path); attach_mnt(source_mnt, path); @@ -1534,8 +1536,12 @@ static int do_remount(struct path *path, int flags, int mnt_flags, err = change_mount_flags(path->mnt, flags); else err = do_remount_sb(sb, flags, data, 0); - if (!err) + if (!err) { + spin_lock(&vfsmount_lock); + mnt_flags |= path->mnt->mnt_flags & MNT_PNODE_MASK; path->mnt->mnt_flags = mnt_flags; + spin_unlock(&vfsmount_lock); + } up_write(&sb->s_umount); if (!err) { security_sb_post_remount(path->mnt, flags, data); @@ -1665,6 +1671,8 @@ int do_add_mount(struct vfsmount *newmnt, struct path *path, { int err; + mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD); + down_write(&namespace_sem); /* Something was mounted here while we slept */ while (d_mountpoint(path->dentry) && diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 2c5ace4f00a..3c7f03b669f 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1615,6 +1615,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, goto out; new_dentry = dentry; + rehash = NULL; new_inode = NULL; } } diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index e1d415e9784..0d289823e85 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -342,6 +342,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq, data->res.fattr = &data->fattr; data->res.eof = 0; data->res.count = bytes; + nfs_fattr_init(&data->fattr); msg.rpc_argp = &data->args; msg.rpc_resp = &data->res; @@ -575,6 +576,7 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq) data->res.count = 0; data->res.fattr = &data->fattr; data->res.verf = &data->verf; + nfs_fattr_init(&data->fattr); NFS_PROTO(data->inode)->commit_setup(data, &msg); @@ -766,6 +768,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq, data->res.fattr = &data->fattr; data->res.count = bytes; data->res.verf = &data->verf; + nfs_fattr_init(&data->fattr); task_setup_data.task = &data->task; task_setup_data.callback_data = data; diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 6b891328f33..63f2071d644 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -486,6 +486,8 @@ static int nfs_release_page(struct page *page, gfp_t gfp) { dfprintk(PAGECACHE, "NFS: release_page(%p)\n", page); + if (gfp & __GFP_WAIT) + nfs_wb_page(page->mapping->host, page); /* If PagePrivate() is set, then the page is not freeable */ if (PagePrivate(page)) return 0; diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c index fa588006588..237874f1af2 100644 --- a/fs/nfs/fscache.c +++ b/fs/nfs/fscache.c @@ -354,12 +354,11 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode) */ int nfs_fscache_release_page(struct page *page, gfp_t gfp) { - struct nfs_inode *nfsi = NFS_I(page->mapping->host); - struct fscache_cookie *cookie = nfsi->fscache; - - BUG_ON(!cookie); - if (PageFsCache(page)) { + struct nfs_inode *nfsi = NFS_I(page->mapping->host); + struct fscache_cookie *cookie = nfsi->fscache; + + BUG_ON(!cookie); dfprintk(FSCACHE, "NFS: fscache releasepage (0x%p/0x%p/0x%p)\n", cookie, page, nfsi); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index faa091865ad..f141bde7756 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1261,8 +1261,10 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) if (fattr->valid & NFS_ATTR_FATTR_MODE) { if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) { + umode_t newmode = inode->i_mode & S_IFMT; + newmode |= fattr->mode & S_IALLUGO; + inode->i_mode = newmode; invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; - inode->i_mode = fattr->mode; } } else if (server->caps & NFS_CAP_MODE) invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c index 0adefc40cc8..59047f8d7d7 100644 --- a/fs/nfs/mount_clnt.c +++ b/fs/nfs/mount_clnt.c @@ -120,7 +120,7 @@ static struct { { .status = MNT3ERR_INVAL, .errno = -EINVAL, }, { .status = MNT3ERR_NAMETOOLONG, .errno = -ENAMETOOLONG, }, { .status = MNT3ERR_NOTSUPP, .errno = -ENOTSUPP, }, - { .status = MNT3ERR_SERVERFAULT, .errno = -ESERVERFAULT, }, + { .status = MNT3ERR_SERVERFAULT, .errno = -EREMOTEIO, }, }; struct mountres { diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c index 5e078b222b4..7bc2da8efd4 100644 --- a/fs/nfs/nfs2xdr.c +++ b/fs/nfs/nfs2xdr.c @@ -699,7 +699,7 @@ static struct { { NFSERR_BAD_COOKIE, -EBADCOOKIE }, { NFSERR_NOTSUPP, -ENOTSUPP }, { NFSERR_TOOSMALL, -ETOOSMALL }, - { NFSERR_SERVERFAULT, -ESERVERFAULT }, + { NFSERR_SERVERFAULT, -EREMOTEIO }, { NFSERR_BADTYPE, -EBADTYPE }, { NFSERR_JUKEBOX, -EJUKEBOX }, { -1, -EIO } diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 865265bdca0..0c6fda33d66 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -146,6 +146,7 @@ enum { NFS_O_RDWR_STATE, /* OPEN stateid has read/write state */ NFS_STATE_RECLAIM_REBOOT, /* OPEN stateid server rebooted */ NFS_STATE_RECLAIM_NOGRACE, /* OPEN stateid needs to recover state */ + NFS_STATE_POSIX_LOCKS, /* Posix locks are supported */ }; struct nfs4_state { @@ -277,6 +278,7 @@ extern void nfs4_state_set_mode_locked(struct nfs4_state *, fmode_t); extern void nfs4_schedule_state_recovery(struct nfs_client *); extern void nfs4_schedule_state_manager(struct nfs_client *); extern int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state); +extern int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state); extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags); extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp); extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 198d51d17c1..375f0fae2c6 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -249,19 +249,15 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, if (state == NULL) break; nfs4_state_mark_reclaim_nograce(clp, state); - case -NFS4ERR_STALE_CLIENTID: + goto do_state_recovery; case -NFS4ERR_STALE_STATEID: - case -NFS4ERR_EXPIRED: - nfs4_schedule_state_recovery(clp); - ret = nfs4_wait_clnt_recover(clp); - if (ret == 0) - exception->retry = 1; -#if !defined(CONFIG_NFS_V4_1) - break; -#else /* !defined(CONFIG_NFS_V4_1) */ - if (!nfs4_has_session(server->nfs_client)) + if (state == NULL) break; - /* FALLTHROUGH */ + nfs4_state_mark_reclaim_reboot(clp, state); + case -NFS4ERR_STALE_CLIENTID: + case -NFS4ERR_EXPIRED: + goto do_state_recovery; +#if defined(CONFIG_NFS_V4_1) case -NFS4ERR_BADSESSION: case -NFS4ERR_BADSLOT: case -NFS4ERR_BAD_HIGH_SLOT: @@ -274,7 +270,7 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, nfs4_schedule_state_recovery(clp); exception->retry = 1; break; -#endif /* !defined(CONFIG_NFS_V4_1) */ +#endif /* defined(CONFIG_NFS_V4_1) */ case -NFS4ERR_FILE_OPEN: if (exception->timeout > HZ) { /* We have retried a decent amount, time to @@ -293,6 +289,12 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, } /* We failed to handle the error */ return nfs4_map_errors(ret); +do_state_recovery: + nfs4_schedule_state_recovery(clp); + ret = nfs4_wait_clnt_recover(clp); + if (ret == 0) + exception->retry = 1; + return ret; } @@ -1658,6 +1660,8 @@ static int _nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, in status = PTR_ERR(state); if (IS_ERR(state)) goto err_opendata_put; + if ((opendata->o_res.rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) != 0) + set_bit(NFS_STATE_POSIX_LOCKS, &state->flags); nfs4_opendata_put(opendata); nfs4_put_state_owner(sp); *res = state; @@ -3422,15 +3426,14 @@ _nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, if (state == NULL) break; nfs4_state_mark_reclaim_nograce(clp, state); - case -NFS4ERR_STALE_CLIENTID: + goto do_state_recovery; case -NFS4ERR_STALE_STATEID: + if (state == NULL) + break; + nfs4_state_mark_reclaim_reboot(clp, state); + case -NFS4ERR_STALE_CLIENTID: case -NFS4ERR_EXPIRED: - rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL); - nfs4_schedule_state_recovery(clp); - if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0) - rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task); - task->tk_status = 0; - return -EAGAIN; + goto do_state_recovery; #if defined(CONFIG_NFS_V4_1) case -NFS4ERR_BADSESSION: case -NFS4ERR_BADSLOT: @@ -3458,6 +3461,13 @@ _nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, } task->tk_status = nfs4_map_errors(task->tk_status); return 0; +do_state_recovery: + rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL); + nfs4_schedule_state_recovery(clp); + if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0) + rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task); + task->tk_status = 0; + return -EAGAIN; } static int @@ -4088,6 +4098,28 @@ static const struct rpc_call_ops nfs4_recover_lock_ops = { .rpc_release = nfs4_lock_release, }; +static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_state *lsp, int new_lock_owner, int error) +{ + struct nfs_client *clp = server->nfs_client; + struct nfs4_state *state = lsp->ls_state; + + switch (error) { + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_BAD_STATEID: + case -NFS4ERR_EXPIRED: + if (new_lock_owner != 0 || + (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) + nfs4_state_mark_reclaim_nograce(clp, state); + lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED; + break; + case -NFS4ERR_STALE_STATEID: + if (new_lock_owner != 0 || + (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) + nfs4_state_mark_reclaim_reboot(clp, state); + lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED; + }; +} + static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *fl, int recovery_type) { struct nfs4_lockdata *data; @@ -4126,6 +4158,9 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f ret = nfs4_wait_for_completion_rpc_task(task); if (ret == 0) { ret = data->rpc_status; + if (ret) + nfs4_handle_setlk_error(data->server, data->lsp, + data->arg.new_lock_owner, ret); } else data->cancelled = 1; rpc_put_task(task); @@ -4181,8 +4216,11 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock { struct nfs_inode *nfsi = NFS_I(state->inode); unsigned char fl_flags = request->fl_flags; - int status; + int status = -ENOLCK; + if ((fl_flags & FL_POSIX) && + !test_bit(NFS_STATE_POSIX_LOCKS, &state->flags)) + goto out; /* Is this a delegated open? */ status = nfs4_set_lock_state(state, request); if (status != 0) diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 6d263ed79e9..c1e2733f4fa 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -901,7 +901,7 @@ void nfs4_schedule_state_recovery(struct nfs_client *clp) nfs4_schedule_state_manager(clp); } -static int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state) +int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state) { set_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags); diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index e437fd6a819..5cd5184b56d 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4631,7 +4631,7 @@ static int decode_sequence(struct xdr_stream *xdr, * If the server returns different values for sessionID, slotID or * sequence number, the server is looney tunes. */ - status = -ESERVERFAULT; + status = -EREMOTEIO; if (memcmp(id.data, res->sr_session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) { @@ -5774,7 +5774,7 @@ static struct { { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, { NFS4ERR_NOTSUPP, -ENOTSUPP }, { NFS4ERR_TOOSMALL, -ETOOSMALL }, - { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, + { NFS4ERR_SERVERFAULT, -EREMOTEIO }, { NFS4ERR_BADTYPE, -EBADTYPE }, { NFS4ERR_LOCKED, -EAGAIN }, { NFS4ERR_SYMLINK, -ELOOP }, @@ -5801,7 +5801,7 @@ nfs4_stat_to_errno(int stat) } if (stat <= 10000 || stat > 10100) { /* The server is looney tunes. */ - return -ESERVERFAULT; + return -EREMOTEIO; } /* If we cannot translate the error, the recovery routines should * handle it. diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index e2975939126..a12c45b65dd 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -176,6 +176,12 @@ void nfs_release_request(struct nfs_page *req) kref_put(&req->wb_kref, nfs_free_request); } +static int nfs_wait_bit_uninterruptible(void *word) +{ + io_schedule(); + return 0; +} + /** * nfs_wait_on_request - Wait for a request to complete. * @req: request to wait upon. @@ -186,14 +192,9 @@ void nfs_release_request(struct nfs_page *req) int nfs_wait_on_request(struct nfs_page *req) { - int ret = 0; - - if (!test_bit(PG_BUSY, &req->wb_flags)) - goto out; - ret = out_of_line_wait_on_bit(&req->wb_flags, PG_BUSY, - nfs_wait_bit_killable, TASK_KILLABLE); -out: - return ret; + return wait_on_bit(&req->wb_flags, PG_BUSY, + nfs_wait_bit_uninterruptible, + TASK_UNINTERRUPTIBLE); } /** diff --git a/fs/nfs/super.c b/fs/nfs/super.c index ce907efc550..f1afee4eea7 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -243,6 +243,7 @@ static int nfs_show_stats(struct seq_file *, struct vfsmount *); static int nfs_get_sb(struct file_system_type *, int, const char *, void *, struct vfsmount *); static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); +static void nfs_put_super(struct super_block *); static void nfs_kill_super(struct super_block *); static int nfs_remount(struct super_block *sb, int *flags, char *raw_data); @@ -266,6 +267,7 @@ static const struct super_operations nfs_sops = { .alloc_inode = nfs_alloc_inode, .destroy_inode = nfs_destroy_inode, .write_inode = nfs_write_inode, + .put_super = nfs_put_super, .statfs = nfs_statfs, .clear_inode = nfs_clear_inode, .umount_begin = nfs_umount_begin, @@ -335,6 +337,7 @@ static const struct super_operations nfs4_sops = { .alloc_inode = nfs_alloc_inode, .destroy_inode = nfs_destroy_inode, .write_inode = nfs_write_inode, + .put_super = nfs_put_super, .statfs = nfs_statfs, .clear_inode = nfs4_clear_inode, .umount_begin = nfs_umount_begin, @@ -2258,6 +2261,17 @@ error_splat_super: } /* + * Ensure that we unregister the bdi before kill_anon_super + * releases the device name + */ +static void nfs_put_super(struct super_block *s) +{ + struct nfs_server *server = NFS_SB(s); + + bdi_unregister(&server->backing_dev_info); +} + +/* * Destroy an NFS2/3 superblock */ static void nfs_kill_super(struct super_block *s) @@ -2265,7 +2279,6 @@ static void nfs_kill_super(struct super_block *s) struct nfs_server *server = NFS_SB(s); kill_anon_super(s); - bdi_unregister(&server->backing_dev_info); nfs_fscache_release_super_cookie(s); nfs_free_server(server); } diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c index 70e1fbbaaea..ad4d2e787b2 100644 --- a/fs/nfs/sysctl.c +++ b/fs/nfs/sysctl.c @@ -15,8 +15,10 @@ #include "callback.h" +#ifdef CONFIG_NFS_V4 static const int nfs_set_port_min = 0; static const int nfs_set_port_max = 65535; +#endif static struct ctl_table_header *nfs_callback_sysctl_table; static ctl_table nfs_cb_sysctls[] = { diff --git a/fs/nfs/write.c b/fs/nfs/write.c index d171696017f..d63d964a039 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1233,7 +1233,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data) #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) -void nfs_commitdata_release(void *data) +static void nfs_commitdata_release(void *data) { struct nfs_write_data *wdata = data; @@ -1541,6 +1541,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page) break; } ret = nfs_wait_on_request(req); + nfs_release_request(req); if (ret < 0) goto out; } @@ -1597,8 +1598,7 @@ int nfs_migrate_page(struct address_space *mapping, struct page *newpage, struct nfs_page *req; int ret; - if (PageFsCache(page)) - nfs_fscache_release_page(page, GFP_KERNEL); + nfs_fscache_release_page(page, GFP_KERNEL); req = nfs_find_and_lock_request(page); ret = PTR_ERR(req); diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index c487810a236..a0c4016413f 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -1316,19 +1316,11 @@ rqst_exp_parent(struct svc_rqst *rqstp, struct path *path) static struct svc_export *find_fsidzero_export(struct svc_rqst *rqstp) { - struct svc_export *exp; u32 fsidv[2]; mk_fsid(FSID_NUM, fsidv, 0, 0, 0, NULL); - exp = rqst_exp_find(rqstp, FSID_NUM, fsidv); - /* - * We shouldn't have accepting an nfsv4 request at all if we - * don't have a pseudoexport!: - */ - if (IS_ERR(exp) && PTR_ERR(exp) == -ENOENT) - exp = ERR_PTR(-ESERVERFAULT); - return exp; + return rqst_exp_find(rqstp, FSID_NUM, fsidv); } /* diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 7c2e337d05a..8715d194561 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -752,6 +752,8 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, flags, current_cred()); if (IS_ERR(*filp)) host_err = PTR_ERR(*filp); + else + host_err = ima_file_check(*filp, access); out_nfserr: err = nfserrno(host_err); out: @@ -780,12 +782,9 @@ static inline int nfsd_dosync(struct file *filp, struct dentry *dp, int (*fsync) (struct file *, struct dentry *, int); int err; - err = filemap_fdatawrite(inode->i_mapping); + err = filemap_write_and_wait(inode->i_mapping); if (err == 0 && fop && (fsync = fop->fsync)) err = fsync(filp, dp, 0); - if (err == 0) - err = filemap_fdatawait(inode->i_mapping); - return err; } @@ -2130,7 +2129,6 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp, */ path.mnt = exp->ex_path.mnt; path.dentry = dentry; - err = ima_path_check(&path, acc & (MAY_READ | MAY_WRITE | MAY_EXEC)); nfsd_out: return err? nfserrno(err) : 0; } diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c index f4a14ea2ed9..effdbdbe6c1 100644 --- a/fs/nilfs2/bmap.c +++ b/fs/nilfs2/bmap.c @@ -417,8 +417,8 @@ __u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *bmap, key = page_index(bh->b_page) << (PAGE_CACHE_SHIFT - bmap->b_inode->i_blkbits); - for (pbh = page_buffers(bh->b_page); pbh != bh; - pbh = pbh->b_this_page, key++); + for (pbh = page_buffers(bh->b_page); pbh != bh; pbh = pbh->b_this_page) + key++; return key; } diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c index d5ad54e204a..18737818db6 100644 --- a/fs/nilfs2/cpfile.c +++ b/fs/nilfs2/cpfile.c @@ -328,19 +328,24 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile, tnicps += nicps; nilfs_mdt_mark_buffer_dirty(cp_bh); nilfs_mdt_mark_dirty(cpfile); - if (!nilfs_cpfile_is_in_first(cpfile, cno) && - (count = nilfs_cpfile_block_sub_valid_checkpoints( - cpfile, cp_bh, kaddr, nicps)) == 0) { - /* make hole */ - kunmap_atomic(kaddr, KM_USER0); - brelse(cp_bh); - ret = nilfs_cpfile_delete_checkpoint_block( - cpfile, cno); - if (ret == 0) - continue; - printk(KERN_ERR "%s: cannot delete block\n", - __func__); - break; + if (!nilfs_cpfile_is_in_first(cpfile, cno)) { + count = + nilfs_cpfile_block_sub_valid_checkpoints( + cpfile, cp_bh, kaddr, nicps); + if (count == 0) { + /* make hole */ + kunmap_atomic(kaddr, KM_USER0); + brelse(cp_bh); + ret = + nilfs_cpfile_delete_checkpoint_block( + cpfile, cno); + if (ret == 0) + continue; + printk(KERN_ERR + "%s: cannot delete block\n", + __func__); + break; + } } } diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c index d369ac71827..236753df5cd 100644 --- a/fs/nilfs2/direct.c +++ b/fs/nilfs2/direct.c @@ -51,11 +51,11 @@ static int nilfs_direct_lookup(const struct nilfs_bmap *bmap, struct nilfs_direct *direct; __u64 ptr; - direct = (struct nilfs_direct *)bmap; - if ((key > NILFS_DIRECT_KEY_MAX) || - (level != 1) || /* XXX: use macro for level 1 */ - ((ptr = nilfs_direct_get_ptr(direct, key)) == - NILFS_BMAP_INVALID_PTR)) + direct = (struct nilfs_direct *)bmap; /* XXX: use macro for level 1 */ + if (key > NILFS_DIRECT_KEY_MAX || level != 1) + return -ENOENT; + ptr = nilfs_direct_get_ptr(direct, key); + if (ptr == NILFS_BMAP_INVALID_PTR) return -ENOENT; if (ptrp != NULL) @@ -73,9 +73,10 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap, sector_t blocknr; int ret, cnt; - if (key > NILFS_DIRECT_KEY_MAX || - (ptr = nilfs_direct_get_ptr(direct, key)) == - NILFS_BMAP_INVALID_PTR) + if (key > NILFS_DIRECT_KEY_MAX) + return -ENOENT; + ptr = nilfs_direct_get_ptr(direct, key); + if (ptr == NILFS_BMAP_INVALID_PTR) return -ENOENT; if (NILFS_BMAP_USE_VBN(bmap)) { diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index f6af76042d8..d6b2b83de36 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -480,7 +480,7 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp, unsigned int cmd, void __user *argp) { struct nilfs_argv argv[5]; - const static size_t argsz[5] = { + static const size_t argsz[5] = { sizeof(struct nilfs_vdesc), sizeof(struct nilfs_period), sizeof(__u64), diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 17584c52448..105b508b47a 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2829,7 +2829,7 @@ static void nilfs_segctor_destroy(struct nilfs_sc_info *sci) || sci->sc_seq_request != sci->sc_seq_done); spin_unlock(&sci->sc_state_lock); - if (flag || nilfs_segctor_confirm(sci)) + if (flag || !nilfs_segctor_confirm(sci)) nilfs_segctor_write_out(sci); WARN_ON(!list_empty(&sci->sc_copied_buffers)); diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index c9ee67b442e..1afb0a10229 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -121,7 +121,7 @@ static int idr_callback(int id, void *p, void *data) if (warned) return 0; - warned = false; + warned = true; entry = p; ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry); diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 8271cf05c95..a94e8bd8eb1 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -552,7 +552,7 @@ retry: spin_lock(&group->inotify_data.idr_lock); ret = idr_get_new_above(&group->inotify_data.idr, &tmp_ientry->fsn_entry, - group->inotify_data.last_wd, + group->inotify_data.last_wd+1, &tmp_ientry->wd); spin_unlock(&group->inotify_data.idr_lock); if (ret) { @@ -632,7 +632,7 @@ static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsign spin_lock_init(&group->inotify_data.idr_lock); idr_init(&group->inotify_data.idr); - group->inotify_data.last_wd = 1; + group->inotify_data.last_wd = 0; group->inotify_data.user = user; group->inotify_data.fa = NULL; diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 3dae4a13f6e..7e9df11260f 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -599,7 +599,7 @@ bail: return ret; } -/* +/* * ocfs2_dio_end_io is called by the dio core when a dio is finished. We're * particularly interested in the aio/dio case. Like the core uses * i_alloc_sem, we use the rw_lock DLM lock to protect io on one node from @@ -670,7 +670,7 @@ static ssize_t ocfs2_direct_IO(int rw, ret = blockdev_direct_IO_no_locking(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, - nr_segs, + nr_segs, ocfs2_direct_IO_get_blocks, ocfs2_dio_end_io); diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index d43d34a1dd3..21c808f752d 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -368,7 +368,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, } ocfs2_metadata_cache_io_unlock(ci); - mlog(ML_BH_IO, "block=(%llu), nr=(%d), cached=%s, flags=0x%x\n", + mlog(ML_BH_IO, "block=(%llu), nr=(%d), cached=%s, flags=0x%x\n", (unsigned long long)block, nr, ((flags & OCFS2_BH_IGNORE_CACHE) || ignore_cache) ? "no" : "yes", flags); diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index eda5b8bcddd..5c989000670 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -78,7 +78,7 @@ static struct o2hb_callback *hbcall_from_type(enum o2hb_callback_type type); unsigned int o2hb_dead_threshold = O2HB_DEFAULT_DEAD_THRESHOLD; -/* Only sets a new threshold if there are no active regions. +/* Only sets a new threshold if there are no active regions. * * No locking or otherwise interesting code is required for reading * o2hb_dead_threshold as it can't change once regions are active and @@ -170,7 +170,7 @@ static void o2hb_write_timeout(struct work_struct *work) mlog(ML_ERROR, "Heartbeat write timeout to device %s after %u " "milliseconds\n", reg->hr_dev_name, - jiffies_to_msecs(jiffies - reg->hr_last_timeout_start)); + jiffies_to_msecs(jiffies - reg->hr_last_timeout_start)); o2quo_disk_timeout(); } @@ -624,7 +624,7 @@ static int o2hb_check_slot(struct o2hb_region *reg, "seq %llu last %llu changed %u equal %u\n", slot->ds_node_num, (long long)slot->ds_last_generation, le32_to_cpu(hb_block->hb_cksum), - (unsigned long long)le64_to_cpu(hb_block->hb_seq), + (unsigned long long)le64_to_cpu(hb_block->hb_seq), (unsigned long long)slot->ds_last_time, slot->ds_changed_samples, slot->ds_equal_samples); diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 334f231a422..d8d0c65ac03 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -485,7 +485,7 @@ static void o2net_set_nn_state(struct o2net_node *nn, } if (was_valid && !valid) { - printk(KERN_INFO "o2net: no longer connected to " + printk(KERN_NOTICE "o2net: no longer connected to " SC_NODEF_FMT "\n", SC_NODEF_ARGS(old_sc)); o2net_complete_nodes_nsw(nn); } @@ -493,7 +493,7 @@ static void o2net_set_nn_state(struct o2net_node *nn, if (!was_valid && valid) { o2quo_conn_up(o2net_num_from_nn(nn)); cancel_delayed_work(&nn->nn_connect_expired); - printk(KERN_INFO "o2net: %s " SC_NODEF_FMT "\n", + printk(KERN_NOTICE "o2net: %s " SC_NODEF_FMT "\n", o2nm_this_node() > sc->sc_node->nd_num ? "connected to" : "accepted connection from", SC_NODEF_ARGS(sc)); @@ -930,7 +930,7 @@ static void o2net_sendpage(struct o2net_sock_container *sc, cond_resched(); continue; } - mlog(ML_ERROR, "sendpage of size %zu to " SC_NODEF_FMT + mlog(ML_ERROR, "sendpage of size %zu to " SC_NODEF_FMT " failed with %zd\n", size, SC_NODEF_ARGS(sc), ret); o2net_ensure_shutdown(nn, sc, 0); break; @@ -1476,14 +1476,14 @@ static void o2net_idle_timer(unsigned long data) do_gettimeofday(&now); - printk(KERN_INFO "o2net: connection to " SC_NODEF_FMT " has been idle for %u.%u " + printk(KERN_NOTICE "o2net: connection to " SC_NODEF_FMT " has been idle for %u.%u " "seconds, shutting it down.\n", SC_NODEF_ARGS(sc), o2net_idle_timeout() / 1000, o2net_idle_timeout() % 1000); mlog(ML_NOTICE, "here are some times that might help debug the " "situation: (tmr %ld.%ld now %ld.%ld dr %ld.%ld adv " "%ld.%ld:%ld.%ld func (%08x:%u) %ld.%ld:%ld.%ld)\n", - sc->sc_tv_timer.tv_sec, (long) sc->sc_tv_timer.tv_usec, + sc->sc_tv_timer.tv_sec, (long) sc->sc_tv_timer.tv_usec, now.tv_sec, (long) now.tv_usec, sc->sc_tv_data_ready.tv_sec, (long) sc->sc_tv_data_ready.tv_usec, sc->sc_tv_advance_start.tv_sec, diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h index 8d58cfe410b..96fa7ebc530 100644 --- a/fs/ocfs2/cluster/tcp_internal.h +++ b/fs/ocfs2/cluster/tcp_internal.h @@ -32,10 +32,10 @@ * on their number */ #define O2NET_QUORUM_DELAY_MS ((o2hb_dead_threshold + 2) * O2HB_REGION_TIMEOUT_MS) -/* +/* * This version number represents quite a lot, unfortunately. It not * only represents the raw network message protocol on the wire but also - * locking semantics of the file system using the protocol. It should + * locking semantics of the file system using the protocol. It should * be somewhere else, I'm sure, but right now it isn't. * * With version 11, we separate out the filesystem locking portion. The diff --git a/fs/ocfs2/dlm/dlmapi.h b/fs/ocfs2/dlm/dlmapi.h index b5786a787fa..3cfa114aa39 100644 --- a/fs/ocfs2/dlm/dlmapi.h +++ b/fs/ocfs2/dlm/dlmapi.h @@ -95,7 +95,7 @@ const char *dlm_errname(enum dlm_status err); mlog(ML_ERROR, "dlm status = %s\n", dlm_errname((st))); \ } while (0) -#define DLM_LKSB_UNUSED1 0x01 +#define DLM_LKSB_UNUSED1 0x01 #define DLM_LKSB_PUT_LVB 0x02 #define DLM_LKSB_GET_LVB 0x04 #define DLM_LKSB_UNUSED2 0x08 diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index 01cf8cc3d28..dccc439fa08 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -123,7 +123,7 @@ static void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) dlm_lock_put(lock); /* free up the reserved bast that we are cancelling. * guaranteed that this will not be the last reserved - * ast because *both* an ast and a bast were reserved + * ast because *both* an ast and a bast were reserved * to get to this point. the res->spinlock will not be * taken here */ dlm_lockres_release_ast(dlm, res); diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index ca96bce50e1..f283bce776b 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -396,7 +396,7 @@ static enum dlm_status dlm_send_remote_convert_request(struct dlm_ctxt *dlm, /* instead of logging the same network error over * and over, sleep here and wait for the heartbeat * to notice the node is dead. times out after 5s. */ - dlm_wait_for_node_death(dlm, res->owner, + dlm_wait_for_node_death(dlm, res->owner, DLM_NODE_DEATH_WAIT_MAX); ret = DLM_RECOVERING; mlog(0, "node %u died so returning DLM_RECOVERING " diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index 42b0bad7a61..0cd24cf5439 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -102,7 +102,7 @@ void __dlm_print_one_lock_resource(struct dlm_lock_resource *res) assert_spin_locked(&res->spinlock); stringify_lockname(res->lockname.name, res->lockname.len, - buf, sizeof(buf) - 1); + buf, sizeof(buf)); printk("lockres: %s, owner=%u, state=%u\n", buf, res->owner, res->state); printk(" last used: %lu, refcnt: %u, on purge list: %s\n", diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 0334000676d..988c9055fd4 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -816,7 +816,7 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, } /* Once the dlm ctxt is marked as leaving then we don't want - * to be put in someone's domain map. + * to be put in someone's domain map. * Also, explicitly disallow joining at certain troublesome * times (ie. during recovery). */ if (dlm && dlm->dlm_state != DLM_CTXT_LEAVING) { diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 437698e9465..73333777267 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -269,7 +269,7 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, } dlm_revert_pending_lock(res, lock); dlm_lock_put(lock); - } else if (dlm_is_recovery_lock(res->lockname.name, + } else if (dlm_is_recovery_lock(res->lockname.name, res->lockname.len)) { /* special case for the $RECOVERY lock. * there will never be an AST delivered to put diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 03ccf9a7b1f..a659606dcb9 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -366,7 +366,7 @@ void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up) struct dlm_master_list_entry *mle; assert_spin_locked(&dlm->spinlock); - + list_for_each_entry(mle, &dlm->mle_hb_events, hb_events) { if (node_up) dlm_mle_node_up(dlm, mle, NULL, idx); @@ -833,7 +833,7 @@ lookup: __dlm_insert_mle(dlm, mle); /* still holding the dlm spinlock, check the recovery map - * to see if there are any nodes that still need to be + * to see if there are any nodes that still need to be * considered. these will not appear in the mle nodemap * but they might own this lockres. wait on them. */ bit = find_next_bit(dlm->recovery_map, O2NM_MAX_NODES, 0); @@ -883,7 +883,7 @@ redo_request: msleep(500); } continue; - } + } dlm_kick_recovery_thread(dlm); msleep(1000); @@ -939,8 +939,8 @@ wait: res->lockname.name, blocked); if (++tries > 20) { mlog(ML_ERROR, "%s:%.*s: spinning on " - "dlm_wait_for_lock_mastery, blocked=%d\n", - dlm->name, res->lockname.len, + "dlm_wait_for_lock_mastery, blocked=%d\n", + dlm->name, res->lockname.len, res->lockname.name, blocked); dlm_print_one_lock_resource(res); dlm_print_one_mle(mle); @@ -1029,7 +1029,7 @@ recheck: ret = dlm_restart_lock_mastery(dlm, res, mle, *blocked); b = (mle->type == DLM_MLE_BLOCK); if ((*blocked && !b) || (!*blocked && b)) { - mlog(0, "%s:%.*s: status change: old=%d new=%d\n", + mlog(0, "%s:%.*s: status change: old=%d new=%d\n", dlm->name, res->lockname.len, res->lockname.name, *blocked, b); *blocked = b; @@ -1602,7 +1602,7 @@ send_response: } mlog(0, "%u is the owner of %.*s, cleaning everyone else\n", dlm->node_num, res->lockname.len, res->lockname.name); - ret = dlm_dispatch_assert_master(dlm, res, 0, request->node_idx, + ret = dlm_dispatch_assert_master(dlm, res, 0, request->node_idx, DLM_ASSERT_MASTER_MLE_CLEANUP); if (ret < 0) { mlog(ML_ERROR, "failed to dispatch assert master work\n"); @@ -1701,7 +1701,7 @@ again: if (r & DLM_ASSERT_RESPONSE_REASSERT) { mlog(0, "%.*s: node %u create mles on other " - "nodes and requests a re-assert\n", + "nodes and requests a re-assert\n", namelen, lockname, to); reassert = 1; } @@ -1812,7 +1812,7 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data, spin_unlock(&dlm->master_lock); spin_unlock(&dlm->spinlock); goto done; - } + } } } spin_unlock(&dlm->master_lock); @@ -1883,7 +1883,7 @@ ok: int extra_ref = 0; int nn = -1; int rr, err = 0; - + spin_lock(&mle->spinlock); if (mle->type == DLM_MLE_BLOCK || mle->type == DLM_MLE_MIGRATION) extra_ref = 1; @@ -1891,7 +1891,7 @@ ok: /* MASTER mle: if any bits set in the response map * then the calling node needs to re-assert to clear * up nodes that this node contacted */ - while ((nn = find_next_bit (mle->response_map, O2NM_MAX_NODES, + while ((nn = find_next_bit (mle->response_map, O2NM_MAX_NODES, nn+1)) < O2NM_MAX_NODES) { if (nn != dlm->node_num && nn != assert->node_idx) master_request = 1; @@ -2002,7 +2002,7 @@ kill: __dlm_print_one_lock_resource(res); spin_unlock(&res->spinlock); spin_unlock(&dlm->spinlock); - *ret_data = (void *)res; + *ret_data = (void *)res; dlm_put(dlm); return -EINVAL; } @@ -2040,10 +2040,10 @@ int dlm_dispatch_assert_master(struct dlm_ctxt *dlm, item->u.am.request_from = request_from; item->u.am.flags = flags; - if (ignore_higher) - mlog(0, "IGNORE HIGHER: %.*s\n", res->lockname.len, + if (ignore_higher) + mlog(0, "IGNORE HIGHER: %.*s\n", res->lockname.len, res->lockname.name); - + spin_lock(&dlm->work_lock); list_add_tail(&item->list, &dlm->work_list); spin_unlock(&dlm->work_lock); @@ -2133,7 +2133,7 @@ put: * think that $RECOVERY is currently mastered by a dead node. If so, * we wait a short time to allow that node to get notified by its own * heartbeat stack, then check again. All $RECOVERY lock resources - * mastered by dead nodes are purged when the hearbeat callback is + * mastered by dead nodes are purged when the hearbeat callback is * fired, so we can know for sure that it is safe to continue once * the node returns a live node or no node. */ static int dlm_pre_master_reco_lockres(struct dlm_ctxt *dlm, @@ -2174,7 +2174,7 @@ static int dlm_pre_master_reco_lockres(struct dlm_ctxt *dlm, ret = -EAGAIN; } spin_unlock(&dlm->spinlock); - mlog(0, "%s: reco lock master is %u\n", dlm->name, + mlog(0, "%s: reco lock master is %u\n", dlm->name, master); break; } @@ -2602,7 +2602,7 @@ fail: mlog(0, "%s:%.*s: timed out during migration\n", dlm->name, res->lockname.len, res->lockname.name); - /* avoid hang during shutdown when migrating lockres + /* avoid hang during shutdown when migrating lockres * to a node which also goes down */ if (dlm_is_node_dead(dlm, target)) { mlog(0, "%s:%.*s: expected migration " @@ -2738,7 +2738,7 @@ static int dlm_migration_can_proceed(struct dlm_ctxt *dlm, can_proceed = !!(res->state & DLM_LOCK_RES_MIGRATING); spin_unlock(&res->spinlock); - /* target has died, so make the caller break out of the + /* target has died, so make the caller break out of the * wait_event, but caller must recheck the domain_map */ spin_lock(&dlm->spinlock); if (!test_bit(mig_target, dlm->domain_map)) diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 2f9e4e19a4f..344bcf90cbf 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1050,7 +1050,7 @@ static void dlm_move_reco_locks_to_list(struct dlm_ctxt *dlm, if (lock->ml.node == dead_node) { mlog(0, "AHA! there was " "a $RECOVERY lock for dead " - "node %u (%s)!\n", + "node %u (%s)!\n", dead_node, dlm->name); list_del_init(&lock->list); dlm_lock_put(lock); @@ -1164,6 +1164,39 @@ static void dlm_init_migratable_lockres(struct dlm_migratable_lockres *mres, mres->master = master; } +static void dlm_prepare_lvb_for_migration(struct dlm_lock *lock, + struct dlm_migratable_lockres *mres, + int queue) +{ + if (!lock->lksb) + return; + + /* Ignore lvb in all locks in the blocked list */ + if (queue == DLM_BLOCKED_LIST) + return; + + /* Only consider lvbs in locks with granted EX or PR lock levels */ + if (lock->ml.type != LKM_EXMODE && lock->ml.type != LKM_PRMODE) + return; + + if (dlm_lvb_is_empty(mres->lvb)) { + memcpy(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN); + return; + } + + /* Ensure the lvb copied for migration matches in other valid locks */ + if (!memcmp(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN)) + return; + + mlog(ML_ERROR, "Mismatched lvb in lock cookie=%u:%llu, name=%.*s, " + "node=%u\n", + dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)), + dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)), + lock->lockres->lockname.len, lock->lockres->lockname.name, + lock->ml.node); + dlm_print_one_lock_resource(lock->lockres); + BUG(); +} /* returns 1 if this lock fills the network structure, * 0 otherwise */ @@ -1181,20 +1214,7 @@ static int dlm_add_lock_to_array(struct dlm_lock *lock, ml->list = queue; if (lock->lksb) { ml->flags = lock->lksb->flags; - /* send our current lvb */ - if (ml->type == LKM_EXMODE || - ml->type == LKM_PRMODE) { - /* if it is already set, this had better be a PR - * and it has to match */ - if (!dlm_lvb_is_empty(mres->lvb) && - (ml->type == LKM_EXMODE || - memcmp(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN))) { - mlog(ML_ERROR, "mismatched lvbs!\n"); - dlm_print_one_lock_resource(lock->lockres); - BUG(); - } - memcpy(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN); - } + dlm_prepare_lvb_for_migration(lock, mres, queue); } ml->node = lock->ml.node; mres->num_locks++; @@ -1730,6 +1750,7 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm, struct dlm_lock *lock = NULL; u8 from = O2NM_MAX_NODES; unsigned int added = 0; + __be64 c; mlog(0, "running %d locks for this lockres\n", mres->num_locks); for (i=0; i<mres->num_locks; i++) { @@ -1777,19 +1798,48 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm, /* lock is always created locally first, and * destroyed locally last. it must be on the list */ if (!lock) { - __be64 c = ml->cookie; - mlog(ML_ERROR, "could not find local lock " - "with cookie %u:%llu!\n", + c = ml->cookie; + mlog(ML_ERROR, "Could not find local lock " + "with cookie %u:%llu, node %u, " + "list %u, flags 0x%x, type %d, " + "conv %d, highest blocked %d\n", dlm_get_lock_cookie_node(be64_to_cpu(c)), - dlm_get_lock_cookie_seq(be64_to_cpu(c))); + dlm_get_lock_cookie_seq(be64_to_cpu(c)), + ml->node, ml->list, ml->flags, ml->type, + ml->convert_type, ml->highest_blocked); + __dlm_print_one_lock_resource(res); + BUG(); + } + + if (lock->ml.node != ml->node) { + c = lock->ml.cookie; + mlog(ML_ERROR, "Mismatched node# in lock " + "cookie %u:%llu, name %.*s, node %u\n", + dlm_get_lock_cookie_node(be64_to_cpu(c)), + dlm_get_lock_cookie_seq(be64_to_cpu(c)), + res->lockname.len, res->lockname.name, + lock->ml.node); + c = ml->cookie; + mlog(ML_ERROR, "Migrate lock cookie %u:%llu, " + "node %u, list %u, flags 0x%x, type %d, " + "conv %d, highest blocked %d\n", + dlm_get_lock_cookie_node(be64_to_cpu(c)), + dlm_get_lock_cookie_seq(be64_to_cpu(c)), + ml->node, ml->list, ml->flags, ml->type, + ml->convert_type, ml->highest_blocked); __dlm_print_one_lock_resource(res); BUG(); } - BUG_ON(lock->ml.node != ml->node); if (tmpq != queue) { - mlog(0, "lock was on %u instead of %u for %.*s\n", - j, ml->list, res->lockname.len, res->lockname.name); + c = ml->cookie; + mlog(0, "Lock cookie %u:%llu was on list %u " + "instead of list %u for %.*s\n", + dlm_get_lock_cookie_node(be64_to_cpu(c)), + dlm_get_lock_cookie_seq(be64_to_cpu(c)), + j, ml->list, res->lockname.len, + res->lockname.name); + __dlm_print_one_lock_resource(res); spin_unlock(&res->spinlock); continue; } @@ -1839,7 +1889,7 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm, * the lvb. */ memcpy(res->lvb, mres->lvb, DLM_LVB_LEN); } else { - /* otherwise, the node is sending its + /* otherwise, the node is sending its * most recent valid lvb info */ BUG_ON(ml->type != LKM_EXMODE && ml->type != LKM_PRMODE); @@ -1886,7 +1936,7 @@ skip_lvb: spin_lock(&res->spinlock); list_for_each_entry(lock, queue, list) { if (lock->ml.cookie == ml->cookie) { - __be64 c = lock->ml.cookie; + c = lock->ml.cookie; mlog(ML_ERROR, "%s:%.*s: %u:%llu: lock already " "exists on this lockres!\n", dlm->name, res->lockname.len, res->lockname.name, @@ -2114,7 +2164,7 @@ static void dlm_revalidate_lvb(struct dlm_ctxt *dlm, assert_spin_locked(&res->spinlock); if (res->owner == dlm->node_num) - /* if this node owned the lockres, and if the dead node + /* if this node owned the lockres, and if the dead node * had an EX when he died, blank out the lvb */ search_node = dead_node; else { @@ -2152,7 +2202,7 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, /* this node is the lockres master: * 1) remove any stale locks for the dead node - * 2) if the dead node had an EX when he died, blank out the lvb + * 2) if the dead node had an EX when he died, blank out the lvb */ assert_spin_locked(&dlm->spinlock); assert_spin_locked(&res->spinlock); @@ -2193,7 +2243,12 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, mlog(0, "%s:%.*s: freed %u locks for dead node %u, " "dropping ref from lockres\n", dlm->name, res->lockname.len, res->lockname.name, freed, dead_node); - BUG_ON(!test_bit(dead_node, res->refmap)); + if(!test_bit(dead_node, res->refmap)) { + mlog(ML_ERROR, "%s:%.*s: freed %u locks for dead node %u, " + "but ref was not set\n", dlm->name, + res->lockname.len, res->lockname.name, freed, dead_node); + __dlm_print_one_lock_resource(res); + } dlm_lockres_clear_refmap_bit(dead_node, res); } else if (test_bit(dead_node, res->refmap)) { mlog(0, "%s:%.*s: dead node %u had a ref, but had " @@ -2260,7 +2315,7 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node) } spin_unlock(&res->spinlock); continue; - } + } spin_lock(&res->spinlock); /* zero the lvb if necessary */ dlm_revalidate_lvb(dlm, res, dead_node); @@ -2411,7 +2466,7 @@ static void dlm_reco_unlock_ast(void *astdata, enum dlm_status st) * this function on each node racing to become the recovery * master will not stop attempting this until either: * a) this node gets the EX (and becomes the recovery master), - * or b) dlm->reco.new_master gets set to some nodenum + * or b) dlm->reco.new_master gets set to some nodenum * != O2NM_INVALID_NODE_NUM (another node will do the reco). * so each time a recovery master is needed, the entire cluster * will sync at this point. if the new master dies, that will @@ -2424,7 +2479,7 @@ static int dlm_pick_recovery_master(struct dlm_ctxt *dlm) mlog(0, "starting recovery of %s at %lu, dead=%u, this=%u\n", dlm->name, jiffies, dlm->reco.dead_node, dlm->node_num); -again: +again: memset(&lksb, 0, sizeof(lksb)); ret = dlmlock(dlm, LKM_EXMODE, &lksb, LKM_NOQUEUE|LKM_RECOVERY, @@ -2437,8 +2492,8 @@ again: if (ret == DLM_NORMAL) { mlog(0, "dlm=%s dlmlock says I got it (this=%u)\n", dlm->name, dlm->node_num); - - /* got the EX lock. check to see if another node + + /* got the EX lock. check to see if another node * just became the reco master */ if (dlm_reco_master_ready(dlm)) { mlog(0, "%s: got reco EX lock, but %u will " @@ -2451,12 +2506,12 @@ again: /* see if recovery was already finished elsewhere */ spin_lock(&dlm->spinlock); if (dlm->reco.dead_node == O2NM_INVALID_NODE_NUM) { - status = -EINVAL; + status = -EINVAL; mlog(0, "%s: got reco EX lock, but " "node got recovered already\n", dlm->name); if (dlm->reco.new_master != O2NM_INVALID_NODE_NUM) { mlog(ML_ERROR, "%s: new master is %u " - "but no dead node!\n", + "but no dead node!\n", dlm->name, dlm->reco.new_master); BUG(); } @@ -2468,7 +2523,7 @@ again: * set the master and send the messages to begin recovery */ if (!status) { mlog(0, "%s: dead=%u, this=%u, sending " - "begin_reco now\n", dlm->name, + "begin_reco now\n", dlm->name, dlm->reco.dead_node, dlm->node_num); status = dlm_send_begin_reco_message(dlm, dlm->reco.dead_node); @@ -2501,7 +2556,7 @@ again: mlog(0, "dlm=%s dlmlock says another node got it (this=%u)\n", dlm->name, dlm->node_num); /* another node is master. wait on - * reco.new_master != O2NM_INVALID_NODE_NUM + * reco.new_master != O2NM_INVALID_NODE_NUM * for at most one second */ wait_event_timeout(dlm->dlm_reco_thread_wq, dlm_reco_master_ready(dlm), @@ -2589,7 +2644,13 @@ retry: "begin reco msg (%d)\n", dlm->name, nodenum, ret); ret = 0; } - if (ret == -EAGAIN) { + + /* + * Prior to commit aad1b15310b9bcd59fa81ab8f2b1513b59553ea8, + * dlm_begin_reco_handler() returned EAGAIN and not -EAGAIN. + * We are handling both for compatibility reasons. + */ + if (ret == -EAGAIN || ret == EAGAIN) { mlog(0, "%s: trying to start recovery of node " "%u, but node %u is waiting for last recovery " "to complete, backoff for a bit\n", dlm->name, @@ -2599,7 +2660,7 @@ retry: } if (ret < 0) { struct dlm_lock_resource *res; - /* this is now a serious problem, possibly ENOMEM + /* this is now a serious problem, possibly ENOMEM * in the network stack. must retry */ mlog_errno(ret); mlog(ML_ERROR, "begin reco of dlm %s to node %u " @@ -2612,7 +2673,7 @@ retry: } else { mlog(ML_ERROR, "recovery lock not found\n"); } - /* sleep for a bit in hopes that we can avoid + /* sleep for a bit in hopes that we can avoid * another ENOMEM */ msleep(100); goto retry; @@ -2664,7 +2725,7 @@ int dlm_begin_reco_handler(struct o2net_msg *msg, u32 len, void *data, } if (dlm->reco.dead_node != O2NM_INVALID_NODE_NUM) { mlog(ML_NOTICE, "%s: dead_node previously set to %u, " - "node %u changing it to %u\n", dlm->name, + "node %u changing it to %u\n", dlm->name, dlm->reco.dead_node, br->node_idx, br->dead_node); } dlm_set_reco_master(dlm, br->node_idx); @@ -2730,8 +2791,8 @@ stage2: if (ret < 0) { mlog_errno(ret); if (dlm_is_host_down(ret)) { - /* this has no effect on this recovery - * session, so set the status to zero to + /* this has no effect on this recovery + * session, so set the status to zero to * finish out the last recovery */ mlog(ML_ERROR, "node %u went down after this " "node finished recovery.\n", nodenum); @@ -2768,7 +2829,7 @@ int dlm_finalize_reco_handler(struct o2net_msg *msg, u32 len, void *data, mlog(0, "%s: node %u finalizing recovery stage%d of " "node %u (%u:%u)\n", dlm->name, fr->node_idx, stage, fr->dead_node, dlm->reco.dead_node, dlm->reco.new_master); - + spin_lock(&dlm->spinlock); if (dlm->reco.new_master != fr->node_idx) { diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index 00f53b2aea7..49e29ecd020 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -190,8 +190,8 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, actions &= ~(DLM_UNLOCK_REMOVE_LOCK| DLM_UNLOCK_REGRANT_LOCK| DLM_UNLOCK_CLEAR_CONVERT_TYPE); - } else if (status == DLM_RECOVERING || - status == DLM_MIGRATING || + } else if (status == DLM_RECOVERING || + status == DLM_MIGRATING || status == DLM_FORWARD) { /* must clear the actions because this unlock * is about to be retried. cannot free or do @@ -661,14 +661,14 @@ retry: if (call_ast) { mlog(0, "calling unlockast(%p, %d)\n", data, status); if (is_master) { - /* it is possible that there is one last bast + /* it is possible that there is one last bast * pending. make sure it is flushed, then * call the unlockast. * not an issue if this is a mastered remotely, * since this lock has been removed from the * lockres queues and cannot be found. */ dlm_kick_thread(dlm, NULL); - wait_event(dlm->ast_wq, + wait_event(dlm->ast_wq, dlm_lock_basts_flushed(dlm, lock)); } (*unlockast)(data, status); diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index c5e4a49e3a1..e044019cb3b 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -875,6 +875,14 @@ static inline void ocfs2_generic_handle_convert_action(struct ocfs2_lock_res *lo lockres_or_flags(lockres, OCFS2_LOCK_NEEDS_REFRESH); lockres->l_level = lockres->l_requested; + + /* + * We set the OCFS2_LOCK_UPCONVERT_FINISHING flag before clearing + * the OCFS2_LOCK_BUSY flag to prevent the dc thread from + * downconverting the lock before the upconvert has fully completed. + */ + lockres_or_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING); + lockres_clear_flags(lockres, OCFS2_LOCK_BUSY); mlog_exit_void(); @@ -907,8 +915,6 @@ static int ocfs2_generic_handle_bast(struct ocfs2_lock_res *lockres, assert_spin_locked(&lockres->l_lock); - lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED); - if (level > lockres->l_blocking) { /* only schedule a downconvert if we haven't already scheduled * one that goes low enough to satisfy the level we're @@ -921,6 +927,9 @@ static int ocfs2_generic_handle_bast(struct ocfs2_lock_res *lockres, lockres->l_blocking = level; } + if (needs_downconvert) + lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED); + mlog_exit(needs_downconvert); return needs_downconvert; } @@ -1133,6 +1142,7 @@ static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres, mlog_entry_void(); spin_lock_irqsave(&lockres->l_lock, flags); lockres_clear_flags(lockres, OCFS2_LOCK_BUSY); + lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING); if (convert) lockres->l_action = OCFS2_AST_INVALID; else @@ -1323,13 +1333,13 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb, again: wait = 0; + spin_lock_irqsave(&lockres->l_lock, flags); + if (catch_signals && signal_pending(current)) { ret = -ERESTARTSYS; - goto out; + goto unlock; } - spin_lock_irqsave(&lockres->l_lock, flags); - mlog_bug_on_msg(lockres->l_flags & OCFS2_LOCK_FREEING, "Cluster lock called on freeing lockres %s! flags " "0x%lx\n", lockres->l_name, lockres->l_flags); @@ -1346,6 +1356,25 @@ again: goto unlock; } + if (lockres->l_flags & OCFS2_LOCK_UPCONVERT_FINISHING) { + /* + * We've upconverted. If the lock now has a level we can + * work with, we take it. If, however, the lock is not at the + * required level, we go thru the full cycle. One way this could + * happen is if a process requesting an upconvert to PR is + * closely followed by another requesting upconvert to an EX. + * If the process requesting EX lands here, we want it to + * continue attempting to upconvert and let the process + * requesting PR take the lock. + * If multiple processes request upconvert to PR, the first one + * here will take the lock. The others will have to go thru the + * OCFS2_LOCK_BLOCKED check to ensure that there is no pending + * downconvert request. + */ + if (level <= lockres->l_level) + goto update_holders; + } + if (lockres->l_flags & OCFS2_LOCK_BLOCKED && !ocfs2_may_continue_on_blocked_lock(lockres, level)) { /* is the lock is currently blocked on behalf of @@ -1416,11 +1445,14 @@ again: goto again; } +update_holders: /* Ok, if we get here then we're good to go. */ ocfs2_inc_holders(lockres, level); ret = 0; unlock: + lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING); + spin_unlock_irqrestore(&lockres->l_lock, flags); out: /* @@ -3155,7 +3187,7 @@ out: /* Mark the lockres as being dropped. It will no longer be * queued if blocking, but we still may have to wait on it * being dequeued from the downconvert thread before we can consider - * it safe to drop. + * it safe to drop. * * You can *not* attempt to call cluster_lock on this lockres anymore. */ void ocfs2_mark_lockres_freeing(struct ocfs2_lock_res *lockres) @@ -3352,6 +3384,7 @@ static int ocfs2_unblock_lock(struct ocfs2_super *osb, unsigned long flags; int blocking; int new_level; + int level; int ret = 0; int set_lvb = 0; unsigned int gen; @@ -3360,9 +3393,17 @@ static int ocfs2_unblock_lock(struct ocfs2_super *osb, spin_lock_irqsave(&lockres->l_lock, flags); - BUG_ON(!(lockres->l_flags & OCFS2_LOCK_BLOCKED)); - recheck: + /* + * Is it still blocking? If not, we have no more work to do. + */ + if (!(lockres->l_flags & OCFS2_LOCK_BLOCKED)) { + BUG_ON(lockres->l_blocking != DLM_LOCK_NL); + spin_unlock_irqrestore(&lockres->l_lock, flags); + ret = 0; + goto leave; + } + if (lockres->l_flags & OCFS2_LOCK_BUSY) { /* XXX * This is a *big* race. The OCFS2_LOCK_PENDING flag @@ -3401,6 +3442,31 @@ recheck: goto leave; } + /* + * This prevents livelocks. OCFS2_LOCK_UPCONVERT_FINISHING flag is + * set when the ast is received for an upconvert just before the + * OCFS2_LOCK_BUSY flag is cleared. Now if the fs received a bast + * on the heels of the ast, we want to delay the downconvert just + * enough to allow the up requestor to do its task. Because this + * lock is in the blocked queue, the lock will be downconverted + * as soon as the requestor is done with the lock. + */ + if (lockres->l_flags & OCFS2_LOCK_UPCONVERT_FINISHING) + goto leave_requeue; + + /* + * How can we block and yet be at NL? We were trying to upconvert + * from NL and got canceled. The code comes back here, and now + * we notice and clear BLOCKING. + */ + if (lockres->l_level == DLM_LOCK_NL) { + BUG_ON(lockres->l_ex_holders || lockres->l_ro_holders); + lockres->l_blocking = DLM_LOCK_NL; + lockres_clear_flags(lockres, OCFS2_LOCK_BLOCKED); + spin_unlock_irqrestore(&lockres->l_lock, flags); + goto leave; + } + /* if we're blocking an exclusive and we have *any* holders, * then requeue. */ if ((lockres->l_blocking == DLM_LOCK_EX) @@ -3438,6 +3504,7 @@ recheck: * may sleep, so we save off a copy of what we're blocking as * it may change while we're not holding the spin lock. */ blocking = lockres->l_blocking; + level = lockres->l_level; spin_unlock_irqrestore(&lockres->l_lock, flags); ctl->unblock_action = lockres->l_ops->downconvert_worker(lockres, blocking); @@ -3446,7 +3513,7 @@ recheck: goto leave; spin_lock_irqsave(&lockres->l_lock, flags); - if (blocking != lockres->l_blocking) { + if ((blocking != lockres->l_blocking) || (level != lockres->l_level)) { /* If this changed underneath us, then we can't drop * it just yet. */ goto recheck; diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c index 15713cbb865..19ad145d2af 100644 --- a/fs/ocfs2/export.c +++ b/fs/ocfs2/export.c @@ -239,7 +239,7 @@ static int ocfs2_encode_fh(struct dentry *dentry, u32 *fh_in, int *max_len, mlog(0, "Encoding parent: blkno: %llu, generation: %u\n", (unsigned long long)blkno, generation); } - + *max_len = len; bail: diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index d35a27f4523..5328529e7fd 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -192,7 +192,7 @@ static int ocfs2_try_to_merge_extent_map(struct ocfs2_extent_map_item *emi, emi->ei_clusters += ins->ei_clusters; return 1; } else if ((ins->ei_phys + ins->ei_clusters) == emi->ei_phys && - (ins->ei_cpos + ins->ei_clusters) == emi->ei_phys && + (ins->ei_cpos + ins->ei_clusters) == emi->ei_cpos && ins->ei_flags == emi->ei_flags) { emi->ei_phys = ins->ei_phys; emi->ei_cpos = ins->ei_cpos; diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 3d30a1c974a..558ce031242 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -749,7 +749,7 @@ static int ocfs2_write_zero_page(struct inode *inode, int ret; offset = (size & (PAGE_CACHE_SIZE-1)); /* Within page */ - /* ugh. in prepare/commit_write, if from==to==start of block, we + /* ugh. in prepare/commit_write, if from==to==start of block, we ** skip the prepare. make sure we never send an offset for the start ** of a block */ @@ -1772,13 +1772,14 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry, loff_t *ppos, size_t count, int appending, - int *direct_io) + int *direct_io, + int *has_refcount) { int ret = 0, meta_level = 0; struct inode *inode = dentry->d_inode; loff_t saved_pos, end; - /* + /* * We start with a read level meta lock and only jump to an ex * if we need to make modifications here. */ @@ -1833,6 +1834,8 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry, saved_pos, count, &meta_level); + if (has_refcount) + *has_refcount = 1; } if (ret < 0) { @@ -1856,6 +1859,10 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry, break; } + if (has_refcount && *has_refcount == 1) { + *direct_io = 0; + break; + } /* * Allowing concurrent direct writes means * i_size changes wouldn't be synchronized, so @@ -1899,7 +1906,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, loff_t pos) { int ret, direct_io, appending, rw_level, have_alloc_sem = 0; - int can_do_direct; + int can_do_direct, has_refcount = 0; ssize_t written = 0; size_t ocount; /* original count */ size_t count; /* after file limit checks */ @@ -1942,7 +1949,7 @@ relock: can_do_direct = direct_io; ret = ocfs2_prepare_inode_for_write(file->f_path.dentry, ppos, iocb->ki_left, appending, - &can_do_direct); + &can_do_direct, &has_refcount); if (ret < 0) { mlog_errno(ret); goto out; @@ -2006,14 +2013,16 @@ out_dio: /* buffered aio wouldn't have proper lock coverage today */ BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT)); - if ((file->f_flags & O_DSYNC && !direct_io) || IS_SYNC(inode)) { + if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) || + ((file->f_flags & O_DIRECT) && has_refcount)) { ret = filemap_fdatawrite_range(file->f_mapping, pos, pos + count - 1); if (ret < 0) written = ret; if (!ret && (old_size != i_size_read(inode) || - old_clusters != OCFS2_I(inode)->ip_clusters)) { + old_clusters != OCFS2_I(inode)->ip_clusters || + has_refcount)) { ret = jbd2_journal_force_commit(osb->journal->j_journal); if (ret < 0) written = ret; @@ -2024,7 +2033,7 @@ out_dio: pos + count - 1); } - /* + /* * deep in g_f_a_w_n()->ocfs2_direct_IO we pass in a ocfs2_dio_end_io * function pointer which is called when o_direct io completes so that * it can unlock our rw lock. (it's the clustered equivalent of @@ -2062,7 +2071,7 @@ static int ocfs2_splice_to_file(struct pipe_inode_info *pipe, int ret; ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, &sd->pos, - sd->total_len, 0, NULL); + sd->total_len, 0, NULL, NULL); if (ret < 0) { mlog_errno(ret); return ret; @@ -2189,7 +2198,7 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, goto bail; } - /* + /* * buffered reads protect themselves in ->readpage(). O_DIRECT reads * need locks to protect pending reads from racing with truncate. */ @@ -2211,10 +2220,10 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, * We're fine letting folks race truncates and extending * writes with read across the cluster, just like they can * locally. Hence no rw_lock during read. - * + * * Take and drop the meta data lock to update inode fields * like i_size. This allows the checks down below - * generic_file_aio_read() a chance of actually working. + * generic_file_aio_read() a chance of actually working. */ ret = ocfs2_inode_lock_atime(inode, filp->f_vfsmnt, &lock_level); if (ret < 0) { @@ -2239,7 +2248,7 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, bail: if (have_alloc_sem) up_read(&inode->i_alloc_sem); - if (rw_level != -1) + if (rw_level != -1) ocfs2_rw_unlock(inode, rw_level); mlog_exit(ret); diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index 0297fb8982b..88459bdd1ff 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -475,7 +475,7 @@ static int ocfs2_read_locked_inode(struct inode *inode, if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) { status = ocfs2_try_open_lock(inode, 0); if (status) { - make_bad_inode(inode); + make_bad_inode(inode); return status; } } @@ -684,7 +684,7 @@ bail: return status; } -/* +/* * Serialize with orphan dir recovery. If the process doing * recovery on this orphan dir does an iget() with the dir * i_mutex held, we'll deadlock here. Instead we detect this diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index 31fbb061951..7d9d9c132ce 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -7,6 +7,7 @@ #include <linux/fs.h> #include <linux/mount.h> +#include <linux/compat.h> #define MLOG_MASK_PREFIX ML_INODE #include <cluster/masklog.h> @@ -181,6 +182,10 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) #ifdef CONFIG_COMPAT long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) { + bool preserve; + struct reflink_arguments args; + struct inode *inode = file->f_path.dentry->d_inode; + switch (cmd) { case OCFS2_IOC32_GETFLAGS: cmd = OCFS2_IOC_GETFLAGS; @@ -195,8 +200,15 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) case OCFS2_IOC_GROUP_EXTEND: case OCFS2_IOC_GROUP_ADD: case OCFS2_IOC_GROUP_ADD64: - case OCFS2_IOC_REFLINK: break; + case OCFS2_IOC_REFLINK: + if (copy_from_user(&args, (struct reflink_arguments *)arg, + sizeof(args))) + return -EFAULT; + preserve = (args.preserve != 0); + + return ocfs2_reflink_ioctl(inode, compat_ptr(args.old_path), + compat_ptr(args.new_path), preserve); default: return -ENOIOCTLCMD; } diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index bf34c491ae9..9336c60e3a3 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -2034,7 +2034,7 @@ static int ocfs2_queue_orphans(struct ocfs2_super *osb, status = -ENOENT; mlog_errno(status); return status; - } + } mutex_lock(&orphan_dir_inode->i_mutex); status = ocfs2_inode_lock(orphan_dir_inode, NULL, 0); diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 9362eea7424..740f448041e 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -136,6 +136,10 @@ enum ocfs2_unlock_action { #define OCFS2_LOCK_PENDING (0x00000400) /* This lockres is pending a call to dlm_lock. Only exists with BUSY set. */ +#define OCFS2_LOCK_UPCONVERT_FINISHING (0x00000800) /* blocks the dc thread + * from downconverting + * before the upconvert + * has completed */ struct ocfs2_lock_res_ops; diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 1a1a679e51b..7638a38c32b 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -1417,9 +1417,16 @@ static inline int ocfs2_fast_symlink_chars(int blocksize) return blocksize - offsetof(struct ocfs2_dinode, id2.i_symlink); } -static inline int ocfs2_max_inline_data(int blocksize) +static inline int ocfs2_max_inline_data_with_xattr(int blocksize, + struct ocfs2_dinode *di) { - return blocksize - offsetof(struct ocfs2_dinode, id2.i_data.id_data); + if (di && (di->i_dyn_features & OCFS2_INLINE_XATTR_FL)) + return blocksize - + offsetof(struct ocfs2_dinode, id2.i_data.id_data) - + di->i_xattr_inline_size; + else + return blocksize - + offsetof(struct ocfs2_dinode, id2.i_data.id_data); } static inline int ocfs2_extent_recs_per_inode(int blocksize) diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 74db2be75dd..8ae65c9c020 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -2945,7 +2945,7 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle, while (offset < end) { page_index = offset >> PAGE_CACHE_SHIFT; - map_end = (page_index + 1) << PAGE_CACHE_SHIFT; + map_end = ((loff_t)page_index + 1) << PAGE_CACHE_SHIFT; if (map_end > end) map_end = end; @@ -2957,8 +2957,12 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle, page = grab_cache_page(mapping, page_index); - /* This page can't be dirtied before we CoW it out. */ - BUG_ON(PageDirty(page)); + /* + * In case PAGE_CACHE_SIZE <= CLUSTER_SIZE, This page + * can't be dirtied before we CoW it out. + */ + if (PAGE_CACHE_SIZE <= OCFS2_SB(sb)->s_clustersize) + BUG_ON(PageDirty(page)); if (!PageUptodate(page)) { ret = block_read_full_page(page, ocfs2_get_block); @@ -3170,7 +3174,7 @@ static int ocfs2_cow_sync_writeback(struct super_block *sb, while (offset < end) { page_index = offset >> PAGE_CACHE_SHIFT; - map_end = (page_index + 1) << PAGE_CACHE_SHIFT; + map_end = ((loff_t)page_index + 1) << PAGE_CACHE_SHIFT; if (map_end > end) map_end = end; diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index e49c4105026..3038c92af49 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -277,7 +277,7 @@ static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn) u32 dlm_key; struct dlm_ctxt *dlm; struct o2dlm_private *priv; - struct dlm_protocol_version dlm_version; + struct dlm_protocol_version fs_version; BUG_ON(conn == NULL); BUG_ON(o2cb_stack.sp_proto == NULL); @@ -304,18 +304,18 @@ static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn) /* used by the dlm code to make message headers unique, each * node in this domain must agree on this. */ dlm_key = crc32_le(0, conn->cc_name, conn->cc_namelen); - dlm_version.pv_major = conn->cc_version.pv_major; - dlm_version.pv_minor = conn->cc_version.pv_minor; + fs_version.pv_major = conn->cc_version.pv_major; + fs_version.pv_minor = conn->cc_version.pv_minor; - dlm = dlm_register_domain(conn->cc_name, dlm_key, &dlm_version); + dlm = dlm_register_domain(conn->cc_name, dlm_key, &fs_version); if (IS_ERR(dlm)) { rc = PTR_ERR(dlm); mlog_errno(rc); goto out_free; } - conn->cc_version.pv_major = dlm_version.pv_major; - conn->cc_version.pv_minor = dlm_version.pv_minor; + conn->cc_version.pv_major = fs_version.pv_major; + conn->cc_version.pv_minor = fs_version.pv_minor; conn->cc_lockspace = dlm; dlm_register_eviction_cb(dlm, &priv->op_eviction_cb); diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 26069917a9f..755cd49a5ef 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1062,7 +1062,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) "file system, but write access is " "unavailable.\n"); else - mlog_errno(status); + mlog_errno(status); goto read_super_error; } diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c index 49b133ccbf1..32499d213fc 100644 --- a/fs/ocfs2/symlink.c +++ b/fs/ocfs2/symlink.c @@ -137,20 +137,20 @@ static void *ocfs2_fast_follow_link(struct dentry *dentry, } memcpy(link, target, len); - nd_set_link(nd, link); bail: + nd_set_link(nd, status ? ERR_PTR(status) : link); brelse(bh); mlog_exit(status); - return status ? ERR_PTR(status) : link; + return NULL; } static void ocfs2_fast_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) { - char *link = cookie; - - kfree(link); + char *link = nd_get_link(nd); + if (!IS_ERR(link)) + kfree(link); } const struct inode_operations ocfs2_symlink_inode_operations = { diff --git a/fs/ocfs2/uptodate.c b/fs/ocfs2/uptodate.c index c61369342a2..a0a120e82b9 100644 --- a/fs/ocfs2/uptodate.c +++ b/fs/ocfs2/uptodate.c @@ -267,8 +267,8 @@ static int ocfs2_buffer_cached(struct ocfs2_caching_info *ci, } /* Warning: even if it returns true, this does *not* guarantee that - * the block is stored in our inode metadata cache. - * + * the block is stored in our inode metadata cache. + * * This can be called under lock_buffer() */ int ocfs2_buffer_uptodate(struct ocfs2_caching_info *ci, diff --git a/fs/proc/array.c b/fs/proc/array.c index f560325c444..13b5d070817 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -327,94 +327,6 @@ static inline void task_context_switch_counts(struct seq_file *m, p->nivcsw); } -#ifdef CONFIG_MMU - -struct stack_stats { - struct vm_area_struct *vma; - unsigned long startpage; - unsigned long usage; -}; - -static int stack_usage_pte_range(pmd_t *pmd, unsigned long addr, - unsigned long end, struct mm_walk *walk) -{ - struct stack_stats *ss = walk->private; - struct vm_area_struct *vma = ss->vma; - pte_t *pte, ptent; - spinlock_t *ptl; - int ret = 0; - - pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); - for (; addr != end; pte++, addr += PAGE_SIZE) { - ptent = *pte; - -#ifdef CONFIG_STACK_GROWSUP - if (pte_present(ptent) || is_swap_pte(ptent)) - ss->usage = addr - ss->startpage + PAGE_SIZE; -#else - if (pte_present(ptent) || is_swap_pte(ptent)) { - ss->usage = ss->startpage - addr + PAGE_SIZE; - pte++; - ret = 1; - break; - } -#endif - } - pte_unmap_unlock(pte - 1, ptl); - cond_resched(); - return ret; -} - -static inline unsigned long get_stack_usage_in_bytes(struct vm_area_struct *vma, - struct task_struct *task) -{ - struct stack_stats ss; - struct mm_walk stack_walk = { - .pmd_entry = stack_usage_pte_range, - .mm = vma->vm_mm, - .private = &ss, - }; - - if (!vma->vm_mm || is_vm_hugetlb_page(vma)) - return 0; - - ss.vma = vma; - ss.startpage = task->stack_start & PAGE_MASK; - ss.usage = 0; - -#ifdef CONFIG_STACK_GROWSUP - walk_page_range(KSTK_ESP(task) & PAGE_MASK, vma->vm_end, - &stack_walk); -#else - walk_page_range(vma->vm_start, (KSTK_ESP(task) & PAGE_MASK) + PAGE_SIZE, - &stack_walk); -#endif - return ss.usage; -} - -static inline void task_show_stack_usage(struct seq_file *m, - struct task_struct *task) -{ - struct vm_area_struct *vma; - struct mm_struct *mm = get_task_mm(task); - - if (mm) { - down_read(&mm->mmap_sem); - vma = find_vma(mm, task->stack_start); - if (vma) - seq_printf(m, "Stack usage:\t%lu kB\n", - get_stack_usage_in_bytes(vma, task) >> 10); - - up_read(&mm->mmap_sem); - mmput(mm); - } -} -#else -static void task_show_stack_usage(struct seq_file *m, struct task_struct *task) -{ -} -#endif /* CONFIG_MMU */ - static void task_cpus_allowed(struct seq_file *m, struct task_struct *task) { seq_printf(m, "Cpus_allowed:\t"); @@ -445,7 +357,6 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, task_show_regs(m, task); #endif task_context_switch_counts(m, task); - task_show_stack_usage(m, task); return 0; } diff --git a/fs/proc/base.c b/fs/proc/base.c index 18d5cc62d8e..58324c29916 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1419,7 +1419,6 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) goto out; error = PROC_I(inode)->op.proc_get_link(inode, &nd->path); - nd->last_type = LAST_BIND; out: return ERR_PTR(error); } @@ -2370,16 +2369,30 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd) { struct pid_namespace *ns = dentry->d_sb->s_fs_info; pid_t tgid = task_tgid_nr_ns(current, ns); - char tmp[PROC_NUMBUF]; - if (!tgid) - return ERR_PTR(-ENOENT); - sprintf(tmp, "%d", task_tgid_nr_ns(current, ns)); - return ERR_PTR(vfs_follow_link(nd,tmp)); + char *name = ERR_PTR(-ENOENT); + if (tgid) { + name = __getname(); + if (!name) + name = ERR_PTR(-ENOMEM); + else + sprintf(name, "%d", tgid); + } + nd_set_link(nd, name); + return NULL; +} + +static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd, + void *cookie) +{ + char *s = nd_get_link(nd); + if (!IS_ERR(s)) + __putname(s); } static const struct inode_operations proc_self_inode_operations = { .readlink = proc_self_readlink, .follow_link = proc_self_follow_link, + .put_link = proc_self_put_link, }; /* diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c index 123257bb356..f8650dce74f 100644 --- a/fs/proc/proc_devtree.c +++ b/fs/proc/proc_devtree.c @@ -10,16 +10,19 @@ #include <linux/seq_file.h> #include <linux/stat.h> #include <linux/string.h> +#include <linux/of.h> +#include <linux/module.h> #include <asm/prom.h> #include <asm/uaccess.h> #include "internal.h" -#ifndef HAVE_ARCH_DEVTREE_FIXUPS static inline void set_node_proc_entry(struct device_node *np, struct proc_dir_entry *de) { -} +#ifdef HAVE_ARCH_DEVTREE_FIXUPS + np->pde = de; #endif +} static struct proc_dir_entry *proc_device_tree; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 47c03f4336b..f277c4a111c 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -361,12 +361,11 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, if (!pte_present(ptent)) continue; - mss->resident += PAGE_SIZE; - page = vm_normal_page(vma, addr, ptent); if (!page) continue; + mss->resident += PAGE_SIZE; /* Accumulate the size in pages that have been accessed. */ if (pte_young(ptent) || PageReferenced(page)) mss->referenced += PAGE_SIZE; diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index dea86abdf2e..3fc62b097be 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -1377,6 +1377,9 @@ static void inode_sub_rsv_space(struct inode *inode, qsize_t number) static qsize_t inode_get_rsv_space(struct inode *inode) { qsize_t ret; + + if (!inode->i_sb->dq_op->get_reserved_space) + return 0; spin_lock(&inode->i_lock); ret = *inode_reserved_space(inode); spin_unlock(&inode->i_lock); diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c index 2efc57173fd..1739a4aba25 100644 --- a/fs/ramfs/file-nommu.c +++ b/fs/ramfs/file-nommu.c @@ -123,30 +123,6 @@ add_error: /*****************************************************************************/ /* - * check that file shrinkage doesn't leave any VMAs dangling in midair - */ -static int ramfs_nommu_check_mappings(struct inode *inode, - size_t newsize, size_t size) -{ - struct vm_area_struct *vma; - struct prio_tree_iter iter; - - /* search for VMAs that fall within the dead zone */ - vma_prio_tree_foreach(vma, &iter, &inode->i_mapping->i_mmap, - newsize >> PAGE_SHIFT, - (size + PAGE_SIZE - 1) >> PAGE_SHIFT - ) { - /* found one - only interested if it's shared out of the page - * cache */ - if (vma->vm_flags & VM_SHARED) - return -ETXTBSY; /* not quite true, but near enough */ - } - - return 0; -} - -/*****************************************************************************/ -/* * */ static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size) @@ -164,7 +140,7 @@ static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size) /* check that a decrease in size doesn't cut off any shared mappings */ if (newsize < size) { - ret = ramfs_nommu_check_mappings(inode, newsize, size); + ret = nommu_shrink_inode_mappings(inode, size, newsize); if (ret < 0) return ret; } diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c index 68549570718..65c87276117 100644 --- a/fs/reiserfs/bitmap.c +++ b/fs/reiserfs/bitmap.c @@ -1277,7 +1277,10 @@ int reiserfs_init_bitmap_cache(struct super_block *sb) struct reiserfs_bitmap_info *bitmap; unsigned int bmap_nr = reiserfs_bmap_count(sb); + /* Avoid lock recursion in fault case */ + reiserfs_write_unlock(sb); bitmap = vmalloc(sizeof(*bitmap) * bmap_nr); + reiserfs_write_lock(sb); if (bitmap == NULL) return -ENOMEM; diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 290ae38fca8..2df0f5c7c60 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -31,11 +31,12 @@ void reiserfs_delete_inode(struct inode *inode) JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb); struct reiserfs_transaction_handle th; + int depth; int err; truncate_inode_pages(&inode->i_data, 0); - reiserfs_write_lock(inode->i_sb); + depth = reiserfs_write_lock_once(inode->i_sb); /* The = 0 happens when we abort creating a new inode for some reason like lack of space.. */ if (!(inode->i_state & I_NEW) && INODE_PKEY(inode)->k_objectid != 0) { /* also handles bad_inode case */ @@ -74,7 +75,7 @@ void reiserfs_delete_inode(struct inode *inode) out: clear_inode(inode); /* note this must go after the journal_end to prevent deadlock */ inode->i_blocks = 0; - reiserfs_write_unlock(inode->i_sb); + reiserfs_write_unlock_once(inode->i_sb, depth); } static void _make_cpu_key(struct cpu_key *key, int version, __u32 dirid, @@ -1496,9 +1497,11 @@ struct inode *reiserfs_iget(struct super_block *s, const struct cpu_key *key) args.objectid = key->on_disk_key.k_objectid; args.dirid = key->on_disk_key.k_dir_id; + reiserfs_write_unlock(s); inode = iget5_locked(s, key->on_disk_key.k_objectid, reiserfs_find_actor, reiserfs_init_locked_inode, (void *)(&args)); + reiserfs_write_lock(s); if (!inode) return ERR_PTR(-ENOMEM); @@ -3061,13 +3064,14 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb, int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; - int error; unsigned int ia_valid; + int depth; + int error; /* must be turned off for recursive notify_change calls */ ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID); - reiserfs_write_lock(inode->i_sb); + depth = reiserfs_write_lock_once(inode->i_sb); if (attr->ia_valid & ATTR_SIZE) { /* version 2 items will be caught by the s_maxbytes check ** done for us in vmtruncate @@ -3148,8 +3152,17 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) journal_end(&th, inode->i_sb, jbegin_count); } } - if (!error) + if (!error) { + /* + * Relax the lock here, as it might truncate the + * inode pages and wait for inode pages locks. + * To release such page lock, the owner needs the + * reiserfs lock + */ + reiserfs_write_unlock_once(inode->i_sb, depth); error = inode_setattr(inode, attr); + depth = reiserfs_write_lock_once(inode->i_sb); + } } if (!error && reiserfs_posixacl(inode->i_sb)) { @@ -3158,7 +3171,8 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) } out: - reiserfs_write_unlock(inode->i_sb); + reiserfs_write_unlock_once(inode->i_sb, depth); + return error; } diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c index ace77451ceb..f53505de071 100644 --- a/fs/reiserfs/ioctl.c +++ b/fs/reiserfs/ioctl.c @@ -104,9 +104,10 @@ setflags_out: err = put_user(inode->i_generation, (int __user *)arg); break; case REISERFS_IOC_SETVERSION: - if (!is_owner_or_cap(inode)) + if (!is_owner_or_cap(inode)) { err = -EPERM; break; + } err = mnt_want_write(filp->f_path.mnt); if (err) break; diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 2f8a7e7b8da..ba98546fabb 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -2009,10 +2009,11 @@ static int do_journal_release(struct reiserfs_transaction_handle *th, destroy_workqueue(commit_wq); commit_wq = NULL; } - reiserfs_write_lock(sb); free_journal_ram(sb); + reiserfs_write_lock(sb); + return 0; } @@ -2758,11 +2759,18 @@ int journal_init(struct super_block *sb, const char *j_dev_name, struct reiserfs_journal *journal; struct reiserfs_journal_list *jl; char b[BDEVNAME_SIZE]; + int ret; + /* + * Unlock here to avoid various RECLAIM-FS-ON <-> IN-RECLAIM-FS + * dependency inversion warnings. + */ + reiserfs_write_unlock(sb); journal = SB_JOURNAL(sb) = vmalloc(sizeof(struct reiserfs_journal)); if (!journal) { reiserfs_warning(sb, "journal-1256", "unable to get memory for journal structure"); + reiserfs_write_lock(sb); return 1; } memset(journal, 0, sizeof(struct reiserfs_journal)); @@ -2771,10 +2779,12 @@ int journal_init(struct super_block *sb, const char *j_dev_name, INIT_LIST_HEAD(&journal->j_working_list); INIT_LIST_HEAD(&journal->j_journal_list); journal->j_persistent_trans = 0; - if (reiserfs_allocate_list_bitmaps(sb, - journal->j_list_bitmap, - reiserfs_bmap_count(sb))) + ret = reiserfs_allocate_list_bitmaps(sb, journal->j_list_bitmap, + reiserfs_bmap_count(sb)); + reiserfs_write_lock(sb); + if (ret) goto free_and_return; + allocate_bitmap_nodes(sb); /* reserved for journal area support */ @@ -2903,7 +2913,9 @@ int journal_init(struct super_block *sb, const char *j_dev_name, journal->j_mount_id = 10; journal->j_state = 0; atomic_set(&(journal->j_jlock), 0); + reiserfs_write_unlock(sb); journal->j_cnode_free_list = allocate_cnodes(num_cnodes); + reiserfs_write_lock(sb); journal->j_cnode_free_orig = journal->j_cnode_free_list; journal->j_cnode_free = journal->j_cnode_free_list ? num_cnodes : 0; journal->j_cnode_used = 0; diff --git a/fs/reiserfs/lock.c b/fs/reiserfs/lock.c index ee2cfc0fd8a..b87aa2c1afc 100644 --- a/fs/reiserfs/lock.c +++ b/fs/reiserfs/lock.c @@ -86,3 +86,12 @@ void reiserfs_check_lock_depth(struct super_block *sb, char *caller) reiserfs_panic(sb, "%s called without kernel lock held %d", caller); } + +#ifdef CONFIG_REISERFS_CHECK +void reiserfs_lock_check_recursive(struct super_block *sb) +{ + struct reiserfs_sb_info *sb_i = REISERFS_SB(sb); + + WARN_ONCE((sb_i->lock_depth > 0), "Unwanted recursive reiserfs lock!\n"); +} +#endif diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c index e296ff72a6c..9d4dcf0b07c 100644 --- a/fs/reiserfs/namei.c +++ b/fs/reiserfs/namei.c @@ -921,6 +921,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry) struct reiserfs_transaction_handle th; int jbegin_count; unsigned long savelink; + int depth; inode = dentry->d_inode; @@ -932,7 +933,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry) JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb); - reiserfs_write_lock(dir->i_sb); + depth = reiserfs_write_lock_once(dir->i_sb); retval = journal_begin(&th, dir->i_sb, jbegin_count); if (retval) goto out_unlink; @@ -993,7 +994,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry) retval = journal_end(&th, dir->i_sb, jbegin_count); reiserfs_check_path(&path); - reiserfs_write_unlock(dir->i_sb); + reiserfs_write_unlock_once(dir->i_sb, depth); return retval; end_unlink: @@ -1003,7 +1004,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry) if (err) retval = err; out_unlink: - reiserfs_write_unlock(dir->i_sb); + reiserfs_write_unlock_once(dir->i_sb, depth); return retval; } diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 8c7033a8b67..81f09fab8ae 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -83,7 +83,8 @@ static int xattr_unlink(struct inode *dir, struct dentry *dentry) BUG_ON(!mutex_is_locked(&dir->i_mutex)); vfs_dq_init(dir); - mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_CHILD); + reiserfs_mutex_lock_nested_safe(&dentry->d_inode->i_mutex, + I_MUTEX_CHILD, dir->i_sb); error = dir->i_op->unlink(dir, dentry); mutex_unlock(&dentry->d_inode->i_mutex); @@ -98,7 +99,8 @@ static int xattr_rmdir(struct inode *dir, struct dentry *dentry) BUG_ON(!mutex_is_locked(&dir->i_mutex)); vfs_dq_init(dir); - mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_CHILD); + reiserfs_mutex_lock_nested_safe(&dentry->d_inode->i_mutex, + I_MUTEX_CHILD, dir->i_sb); dentry_unhash(dentry); error = dir->i_op->rmdir(dir, dentry); if (!error) @@ -235,16 +237,22 @@ static int reiserfs_for_each_xattr(struct inode *inode, if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1) return 0; + reiserfs_write_unlock(inode->i_sb); dir = open_xa_dir(inode, XATTR_REPLACE); if (IS_ERR(dir)) { err = PTR_ERR(dir); + reiserfs_write_lock(inode->i_sb); goto out; } else if (!dir->d_inode) { err = 0; + reiserfs_write_lock(inode->i_sb); goto out_dir; } mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR); + + reiserfs_write_lock(inode->i_sb); + buf.xadir = dir; err = reiserfs_readdir_dentry(dir, &buf, fill_with_dentries, &pos); while ((err == 0 || err == -ENOSPC) && buf.count) { @@ -283,8 +291,9 @@ static int reiserfs_for_each_xattr(struct inode *inode, err = journal_begin(&th, inode->i_sb, blocks); if (!err) { int jerror; - mutex_lock_nested(&dir->d_parent->d_inode->i_mutex, - I_MUTEX_XATTR); + reiserfs_mutex_lock_nested_safe( + &dir->d_parent->d_inode->i_mutex, + I_MUTEX_XATTR, inode->i_sb); err = action(dir, data); jerror = journal_end(&th, inode->i_sb, blocks); mutex_unlock(&dir->d_parent->d_inode->i_mutex); @@ -443,7 +452,9 @@ static int lookup_and_delete_xattr(struct inode *inode, const char *name) } if (dentry->d_inode) { + reiserfs_write_lock(inode->i_sb); err = xattr_unlink(xadir->d_inode, dentry); + reiserfs_write_unlock(inode->i_sb); update_ctime(inode); } @@ -477,15 +488,24 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th, if (get_inode_sd_version(inode) == STAT_DATA_V1) return -EOPNOTSUPP; - if (!buffer) - return lookup_and_delete_xattr(inode, name); + reiserfs_write_unlock(inode->i_sb); + + if (!buffer) { + err = lookup_and_delete_xattr(inode, name); + reiserfs_write_lock(inode->i_sb); + return err; + } dentry = xattr_lookup(inode, name, flags); - if (IS_ERR(dentry)) + if (IS_ERR(dentry)) { + reiserfs_write_lock(inode->i_sb); return PTR_ERR(dentry); + } down_write(&REISERFS_I(inode)->i_xattr_sem); + reiserfs_write_lock(inode->i_sb); + xahash = xattr_hash(buffer, buffer_size); while (buffer_pos < buffer_size || buffer_pos == 0) { size_t chunk; @@ -540,8 +560,12 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th, .ia_size = buffer_size, .ia_valid = ATTR_SIZE | ATTR_CTIME, }; + + reiserfs_write_unlock(inode->i_sb); mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR); down_write(&dentry->d_inode->i_alloc_sem); + reiserfs_write_lock(inode->i_sb); + err = reiserfs_setattr(dentry, &newattrs); up_write(&dentry->d_inode->i_alloc_sem); mutex_unlock(&dentry->d_inode->i_mutex); diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c index cc32e6ada67..dd20a7883f0 100644 --- a/fs/reiserfs/xattr_acl.c +++ b/fs/reiserfs/xattr_acl.c @@ -455,7 +455,9 @@ int reiserfs_acl_chmod(struct inode *inode) return 0; } + reiserfs_write_unlock(inode->i_sb); acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS); + reiserfs_write_lock(inode->i_sb); if (!acl) return 0; if (IS_ERR(acl)) diff --git a/fs/romfs/super.c b/fs/romfs/super.c index c117fa80d1e..42d21354689 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -544,6 +544,7 @@ error: error_rsb_inval: ret = -EINVAL; error_rsb: + kfree(rsb); return ret; } diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index f05f2303a8b..699f371b9f1 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -106,8 +106,10 @@ static struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd) return NULL; t = atomic_cmpxchg(&sd->s_active, v, v + 1); - if (likely(t == v)) + if (likely(t == v)) { + rwsem_acquire_read(&sd->dep_map, 0, 1, _RET_IP_); return sd; + } if (t < 0) return NULL; @@ -130,6 +132,7 @@ static void sysfs_put_active(struct sysfs_dirent *sd) if (unlikely(!sd)) return; + rwsem_release(&sd->dep_map, 1, _RET_IP_); v = atomic_dec_return(&sd->s_active); if (likely(v != SD_DEACTIVATED_BIAS)) return; @@ -194,15 +197,21 @@ static void sysfs_deactivate(struct sysfs_dirent *sd) BUG_ON(sd->s_sibling || !(sd->s_flags & SYSFS_FLAG_REMOVED)); sd->s_sibling = (void *)&wait; + rwsem_acquire(&sd->dep_map, 0, 0, _RET_IP_); /* atomic_add_return() is a mb(), put_active() will always see * the updated sd->s_sibling. */ v = atomic_add_return(SD_DEACTIVATED_BIAS, &sd->s_active); - if (v != SD_DEACTIVATED_BIAS) + if (v != SD_DEACTIVATED_BIAS) { + lock_contended(&sd->dep_map, _RET_IP_); wait_for_completion(&wait); + } sd->s_sibling = NULL; + + lock_acquired(&sd->dep_map, _RET_IP_); + rwsem_release(&sd->dep_map, 1, _RET_IP_); } static int sysfs_alloc_ino(ino_t *pino) @@ -345,6 +354,7 @@ struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type) atomic_set(&sd->s_count, 1); atomic_set(&sd->s_active, 0); + sysfs_dirent_init_lockdep(sd); sd->s_name = name; sd->s_mode = mode; diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 220b758523a..6a06a1d1ea7 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -81,24 +81,23 @@ int sysfs_sd_setattr(struct sysfs_dirent *sd, struct iattr * iattr) if (!sd_attrs) return -ENOMEM; sd->s_iattr = sd_attrs; - } else { - /* attributes were changed at least once in past */ - iattrs = &sd_attrs->ia_iattr; - - if (ia_valid & ATTR_UID) - iattrs->ia_uid = iattr->ia_uid; - if (ia_valid & ATTR_GID) - iattrs->ia_gid = iattr->ia_gid; - if (ia_valid & ATTR_ATIME) - iattrs->ia_atime = iattr->ia_atime; - if (ia_valid & ATTR_MTIME) - iattrs->ia_mtime = iattr->ia_mtime; - if (ia_valid & ATTR_CTIME) - iattrs->ia_ctime = iattr->ia_ctime; - if (ia_valid & ATTR_MODE) { - umode_t mode = iattr->ia_mode; - iattrs->ia_mode = sd->s_mode = mode; - } + } + /* attributes were changed at least once in past */ + iattrs = &sd_attrs->ia_iattr; + + if (ia_valid & ATTR_UID) + iattrs->ia_uid = iattr->ia_uid; + if (ia_valid & ATTR_GID) + iattrs->ia_gid = iattr->ia_gid; + if (ia_valid & ATTR_ATIME) + iattrs->ia_atime = iattr->ia_atime; + if (ia_valid & ATTR_MTIME) + iattrs->ia_mtime = iattr->ia_mtime; + if (ia_valid & ATTR_CTIME) + iattrs->ia_ctime = iattr->ia_ctime; + if (ia_valid & ATTR_MODE) { + umode_t mode = iattr->ia_mode; + iattrs->ia_mode = sd->s_mode = mode; } return 0; } diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index ca52e7b9d8f..cdd9377a6e0 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -8,6 +8,7 @@ * This file is released under the GPLv2. */ +#include <linux/lockdep.h> #include <linux/fs.h> struct sysfs_open_dirent; @@ -50,6 +51,9 @@ struct sysfs_inode_attrs { struct sysfs_dirent { atomic_t s_count; atomic_t s_active; +#ifdef CONFIG_DEBUG_LOCK_ALLOC + struct lockdep_map dep_map; +#endif struct sysfs_dirent *s_parent; struct sysfs_dirent *s_sibling; const char *s_name; @@ -84,6 +88,17 @@ static inline unsigned int sysfs_type(struct sysfs_dirent *sd) return sd->s_flags & SYSFS_TYPE_MASK; } +#ifdef CONFIG_DEBUG_LOCK_ALLOC +#define sysfs_dirent_init_lockdep(sd) \ +do { \ + static struct lock_class_key __key; \ + \ + lockdep_init_map(&sd->dep_map, "s_active", &__key, 0); \ +} while(0) +#else +#define sysfs_dirent_init_lockdep(sd) do {} while(0) +#endif + /* * Context structure to be used while adding/removing nodes. */ diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c index 618c2701d3a..e5a3d8e96bb 100644 --- a/fs/ubifs/gc.c +++ b/fs/ubifs/gc.c @@ -54,6 +54,7 @@ */ #include <linux/pagemap.h> +#include <linux/list_sort.h> #include "ubifs.h" /* @@ -108,101 +109,6 @@ static int switch_gc_head(struct ubifs_info *c) } /** - * list_sort - sort a list. - * @priv: private data, passed to @cmp - * @head: the list to sort - * @cmp: the elements comparison function - * - * This function has been implemented by Mark J Roberts <mjr@znex.org>. It - * implements "merge sort" which has O(nlog(n)) complexity. The list is sorted - * in ascending order. - * - * The comparison function @cmp is supposed to return a negative value if @a is - * than @b, and a positive value if @a is greater than @b. If @a and @b are - * equivalent, then it does not matter what this function returns. - */ -static void list_sort(void *priv, struct list_head *head, - int (*cmp)(void *priv, struct list_head *a, - struct list_head *b)) -{ - struct list_head *p, *q, *e, *list, *tail, *oldhead; - int insize, nmerges, psize, qsize, i; - - if (list_empty(head)) - return; - - list = head->next; - list_del(head); - insize = 1; - for (;;) { - p = oldhead = list; - list = tail = NULL; - nmerges = 0; - - while (p) { - nmerges++; - q = p; - psize = 0; - for (i = 0; i < insize; i++) { - psize++; - q = q->next == oldhead ? NULL : q->next; - if (!q) - break; - } - - qsize = insize; - while (psize > 0 || (qsize > 0 && q)) { - if (!psize) { - e = q; - q = q->next; - qsize--; - if (q == oldhead) - q = NULL; - } else if (!qsize || !q) { - e = p; - p = p->next; - psize--; - if (p == oldhead) - p = NULL; - } else if (cmp(priv, p, q) <= 0) { - e = p; - p = p->next; - psize--; - if (p == oldhead) - p = NULL; - } else { - e = q; - q = q->next; - qsize--; - if (q == oldhead) - q = NULL; - } - if (tail) - tail->next = e; - else - list = e; - e->prev = tail; - tail = e; - } - p = q; - } - - tail->next = list; - list->prev = tail; - - if (nmerges <= 1) - break; - - insize *= 2; - } - - head->next = list; - head->prev = list->prev; - list->prev->next = head; - list->prev = head; -} - -/** * data_nodes_cmp - compare 2 data nodes. * @priv: UBIFS file-system description object * @a: first data node diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c index 2512125dfa7..883ca5ab8af 100644 --- a/fs/xfs/linux-2.6/xfs_acl.c +++ b/fs/xfs/linux-2.6/xfs_acl.c @@ -251,8 +251,9 @@ xfs_set_mode(struct inode *inode, mode_t mode) if (mode != inode->i_mode) { struct iattr iattr; - iattr.ia_valid = ATTR_MODE; + iattr.ia_valid = ATTR_MODE | ATTR_CTIME; iattr.ia_mode = mode; + iattr.ia_ctime = current_fs_time(inode->i_sb); error = -xfs_setattr(XFS_I(inode), &iattr, XFS_ATTR_NOACL); } diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 09783cc444a..77414db10dc 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -954,16 +954,14 @@ xfs_fs_destroy_inode( ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIM)); /* - * If we have nothing to flush with this inode then complete the - * teardown now, otherwise delay the flush operation. + * We always use background reclaim here because even if the + * inode is clean, it still may be under IO and hence we have + * to take the flush lock. The background reclaim path handles + * this more efficiently than we can here, so simply let background + * reclaim tear down all inodes. */ - if (!xfs_inode_clean(ip)) { - xfs_inode_set_reclaim_tag(ip); - return; - } - out_reclaim: - xfs_ireclaim(ip); + xfs_inode_set_reclaim_tag(ip); } /* diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index 6fed97a8cd3..1f5e4bb5e97 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -65,7 +65,6 @@ xfs_inode_ag_lookup( * as the tree is sparse and a gang lookup walks to find * the number of objects requested. */ - read_lock(&pag->pag_ici_lock); if (tag == XFS_ICI_NO_TAG) { nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, (void **)&ip, *first_index, 1); @@ -74,7 +73,7 @@ xfs_inode_ag_lookup( (void **)&ip, *first_index, 1, tag); } if (!nr_found) - goto unlock; + return NULL; /* * Update the index for the next lookup. Catch overflows @@ -84,13 +83,8 @@ xfs_inode_ag_lookup( */ *first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1); if (*first_index < XFS_INO_TO_AGINO(mp, ip->i_ino)) - goto unlock; - + return NULL; return ip; - -unlock: - read_unlock(&pag->pag_ici_lock); - return NULL; } STATIC int @@ -100,7 +94,8 @@ xfs_inode_ag_walk( int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags), int flags, - int tag) + int tag, + int exclusive) { struct xfs_perag *pag = &mp->m_perag[ag]; uint32_t first_index; @@ -114,10 +109,20 @@ restart: int error = 0; xfs_inode_t *ip; + if (exclusive) + write_lock(&pag->pag_ici_lock); + else + read_lock(&pag->pag_ici_lock); ip = xfs_inode_ag_lookup(mp, pag, &first_index, tag); - if (!ip) + if (!ip) { + if (exclusive) + write_unlock(&pag->pag_ici_lock); + else + read_unlock(&pag->pag_ici_lock); break; + } + /* execute releases pag->pag_ici_lock */ error = execute(ip, pag, flags); if (error == EAGAIN) { skipped++; @@ -125,9 +130,8 @@ restart: } if (error) last_error = error; - /* - * bail out if the filesystem is corrupted. - */ + + /* bail out if the filesystem is corrupted. */ if (error == EFSCORRUPTED) break; @@ -148,7 +152,8 @@ xfs_inode_ag_iterator( int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags), int flags, - int tag) + int tag, + int exclusive) { int error = 0; int last_error = 0; @@ -157,7 +162,8 @@ xfs_inode_ag_iterator( for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) { if (!mp->m_perag[ag].pag_ici_init) continue; - error = xfs_inode_ag_walk(mp, ag, execute, flags, tag); + error = xfs_inode_ag_walk(mp, ag, execute, flags, tag, + exclusive); if (error) { last_error = error; if (error == EFSCORRUPTED) @@ -174,30 +180,31 @@ xfs_sync_inode_valid( struct xfs_perag *pag) { struct inode *inode = VFS_I(ip); + int error = EFSCORRUPTED; /* nothing to sync during shutdown */ - if (XFS_FORCED_SHUTDOWN(ip->i_mount)) { - read_unlock(&pag->pag_ici_lock); - return EFSCORRUPTED; - } + if (XFS_FORCED_SHUTDOWN(ip->i_mount)) + goto out_unlock; - /* - * If we can't get a reference on the inode, it must be in reclaim. - * Leave it for the reclaim code to flush. Also avoid inodes that - * haven't been fully initialised. - */ - if (!igrab(inode)) { - read_unlock(&pag->pag_ici_lock); - return ENOENT; - } - read_unlock(&pag->pag_ici_lock); + /* avoid new or reclaimable inodes. Leave for reclaim code to flush */ + error = ENOENT; + if (xfs_iflags_test(ip, XFS_INEW | XFS_IRECLAIMABLE | XFS_IRECLAIM)) + goto out_unlock; - if (is_bad_inode(inode) || xfs_iflags_test(ip, XFS_INEW)) { + /* If we can't grab the inode, it must on it's way to reclaim. */ + if (!igrab(inode)) + goto out_unlock; + + if (is_bad_inode(inode)) { IRELE(ip); - return ENOENT; + goto out_unlock; } - return 0; + /* inode is valid */ + error = 0; +out_unlock: + read_unlock(&pag->pag_ici_lock); + return error; } STATIC int @@ -282,7 +289,7 @@ xfs_sync_data( ASSERT((flags & ~(SYNC_TRYLOCK|SYNC_WAIT)) == 0); error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags, - XFS_ICI_NO_TAG); + XFS_ICI_NO_TAG, 0); if (error) return XFS_ERROR(error); @@ -304,7 +311,7 @@ xfs_sync_attr( ASSERT((flags & ~SYNC_WAIT) == 0); return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags, - XFS_ICI_NO_TAG); + XFS_ICI_NO_TAG, 0); } STATIC int @@ -664,60 +671,6 @@ xfs_syncd_stop( kthread_stop(mp->m_sync_task); } -STATIC int -xfs_reclaim_inode( - xfs_inode_t *ip, - int sync_mode) -{ - xfs_perag_t *pag = xfs_get_perag(ip->i_mount, ip->i_ino); - - /* The hash lock here protects a thread in xfs_iget_core from - * racing with us on linking the inode back with a vnode. - * Once we have the XFS_IRECLAIM flag set it will not touch - * us. - */ - write_lock(&pag->pag_ici_lock); - spin_lock(&ip->i_flags_lock); - if (__xfs_iflags_test(ip, XFS_IRECLAIM) || - !__xfs_iflags_test(ip, XFS_IRECLAIMABLE)) { - spin_unlock(&ip->i_flags_lock); - write_unlock(&pag->pag_ici_lock); - return -EAGAIN; - } - __xfs_iflags_set(ip, XFS_IRECLAIM); - spin_unlock(&ip->i_flags_lock); - write_unlock(&pag->pag_ici_lock); - xfs_put_perag(ip->i_mount, pag); - - /* - * If the inode is still dirty, then flush it out. If the inode - * is not in the AIL, then it will be OK to flush it delwri as - * long as xfs_iflush() does not keep any references to the inode. - * We leave that decision up to xfs_iflush() since it has the - * knowledge of whether it's OK to simply do a delwri flush of - * the inode or whether we need to wait until the inode is - * pulled from the AIL. - * We get the flush lock regardless, though, just to make sure - * we don't free it while it is being flushed. - */ - xfs_ilock(ip, XFS_ILOCK_EXCL); - xfs_iflock(ip); - - /* - * In the case of a forced shutdown we rely on xfs_iflush() to - * wait for the inode to be unpinned before returning an error. - */ - if (!is_bad_inode(VFS_I(ip)) && xfs_iflush(ip, sync_mode) == 0) { - /* synchronize with xfs_iflush_done */ - xfs_iflock(ip); - xfs_ifunlock(ip); - } - - xfs_iunlock(ip, XFS_ILOCK_EXCL); - xfs_ireclaim(ip); - return 0; -} - void __xfs_inode_set_reclaim_tag( struct xfs_perag *pag, @@ -760,19 +713,55 @@ __xfs_inode_clear_reclaim_tag( } STATIC int -xfs_reclaim_inode_now( +xfs_reclaim_inode( struct xfs_inode *ip, struct xfs_perag *pag, - int flags) + int sync_mode) { - /* ignore if already under reclaim */ - if (xfs_iflags_test(ip, XFS_IRECLAIM)) { - read_unlock(&pag->pag_ici_lock); + /* + * The radix tree lock here protects a thread in xfs_iget from racing + * with us starting reclaim on the inode. Once we have the + * XFS_IRECLAIM flag set it will not touch us. + */ + spin_lock(&ip->i_flags_lock); + ASSERT_ALWAYS(__xfs_iflags_test(ip, XFS_IRECLAIMABLE)); + if (__xfs_iflags_test(ip, XFS_IRECLAIM)) { + /* ignore as it is already under reclaim */ + spin_unlock(&ip->i_flags_lock); + write_unlock(&pag->pag_ici_lock); return 0; } - read_unlock(&pag->pag_ici_lock); + __xfs_iflags_set(ip, XFS_IRECLAIM); + spin_unlock(&ip->i_flags_lock); + write_unlock(&pag->pag_ici_lock); - return xfs_reclaim_inode(ip, flags); + /* + * If the inode is still dirty, then flush it out. If the inode + * is not in the AIL, then it will be OK to flush it delwri as + * long as xfs_iflush() does not keep any references to the inode. + * We leave that decision up to xfs_iflush() since it has the + * knowledge of whether it's OK to simply do a delwri flush of + * the inode or whether we need to wait until the inode is + * pulled from the AIL. + * We get the flush lock regardless, though, just to make sure + * we don't free it while it is being flushed. + */ + xfs_ilock(ip, XFS_ILOCK_EXCL); + xfs_iflock(ip); + + /* + * In the case of a forced shutdown we rely on xfs_iflush() to + * wait for the inode to be unpinned before returning an error. + */ + if (!is_bad_inode(VFS_I(ip)) && xfs_iflush(ip, sync_mode) == 0) { + /* synchronize with xfs_iflush_done */ + xfs_iflock(ip); + xfs_ifunlock(ip); + } + + xfs_iunlock(ip, XFS_ILOCK_EXCL); + xfs_ireclaim(ip); + return 0; } int @@ -780,6 +769,6 @@ xfs_reclaim_inodes( xfs_mount_t *mp, int mode) { - return xfs_inode_ag_iterator(mp, xfs_reclaim_inode_now, mode, - XFS_ICI_RECLAIM_TAG); + return xfs_inode_ag_iterator(mp, xfs_reclaim_inode, mode, + XFS_ICI_RECLAIM_TAG, 1); } diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h index a500b4d9183..ea932b43335 100644 --- a/fs/xfs/linux-2.6/xfs_sync.h +++ b/fs/xfs/linux-2.6/xfs_sync.h @@ -54,6 +54,6 @@ void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag, int xfs_sync_inode_valid(struct xfs_inode *ip, struct xfs_perag *pag); int xfs_inode_ag_iterator(struct xfs_mount *mp, int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags), - int flags, int tag); + int flags, int tag, int write_lock); #endif diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h index c40834bdee5..c22a608321a 100644 --- a/fs/xfs/linux-2.6/xfs_trace.h +++ b/fs/xfs/linux-2.6/xfs_trace.h @@ -33,51 +33,55 @@ struct xfs_dquot; struct xlog_ticket; struct log; +DECLARE_EVENT_CLASS(xfs_attr_list_class, + TP_PROTO(struct xfs_attr_list_context *ctx), + TP_ARGS(ctx), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(u32, hashval) + __field(u32, blkno) + __field(u32, offset) + __field(void *, alist) + __field(int, bufsize) + __field(int, count) + __field(int, firstu) + __field(int, dupcnt) + __field(int, flags) + ), + TP_fast_assign( + __entry->dev = VFS_I(ctx->dp)->i_sb->s_dev; + __entry->ino = ctx->dp->i_ino; + __entry->hashval = ctx->cursor->hashval; + __entry->blkno = ctx->cursor->blkno; + __entry->offset = ctx->cursor->offset; + __entry->alist = ctx->alist; + __entry->bufsize = ctx->bufsize; + __entry->count = ctx->count; + __entry->firstu = ctx->firstu; + __entry->flags = ctx->flags; + ), + TP_printk("dev %d:%d ino 0x%llx cursor h/b/o 0x%x/0x%x/%u dupcnt %u " + "alist 0x%p size %u count %u firstu %u flags %d %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->hashval, + __entry->blkno, + __entry->offset, + __entry->dupcnt, + __entry->alist, + __entry->bufsize, + __entry->count, + __entry->firstu, + __entry->flags, + __print_flags(__entry->flags, "|", XFS_ATTR_FLAGS) + ) +) + #define DEFINE_ATTR_LIST_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_attr_list_class, name, \ TP_PROTO(struct xfs_attr_list_context *ctx), \ - TP_ARGS(ctx), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(u32, hashval) \ - __field(u32, blkno) \ - __field(u32, offset) \ - __field(void *, alist) \ - __field(int, bufsize) \ - __field(int, count) \ - __field(int, firstu) \ - __field(int, dupcnt) \ - __field(int, flags) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ctx->dp)->i_sb->s_dev; \ - __entry->ino = ctx->dp->i_ino; \ - __entry->hashval = ctx->cursor->hashval; \ - __entry->blkno = ctx->cursor->blkno; \ - __entry->offset = ctx->cursor->offset; \ - __entry->alist = ctx->alist; \ - __entry->bufsize = ctx->bufsize; \ - __entry->count = ctx->count; \ - __entry->firstu = ctx->firstu; \ - __entry->flags = ctx->flags; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx cursor h/b/o 0x%x/0x%x/%u dupcnt %u " \ - "alist 0x%p size %u count %u firstu %u flags %d %s", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->hashval, \ - __entry->blkno, \ - __entry->offset, \ - __entry->dupcnt, \ - __entry->alist, \ - __entry->bufsize, \ - __entry->count, \ - __entry->firstu, \ - __entry->flags, \ - __print_flags(__entry->flags, "|", XFS_ATTR_FLAGS) \ - ) \ -) + TP_ARGS(ctx)) DEFINE_ATTR_LIST_EVENT(xfs_attr_list_sf); DEFINE_ATTR_LIST_EVENT(xfs_attr_list_sf_all); DEFINE_ATTR_LIST_EVENT(xfs_attr_list_leaf); @@ -178,91 +182,99 @@ TRACE_EVENT(xfs_iext_insert, (char *)__entry->caller_ip) ); +DECLARE_EVENT_CLASS(xfs_bmap_class, + TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx, int state, + unsigned long caller_ip), + TP_ARGS(ip, idx, state, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(xfs_extnum_t, idx) + __field(xfs_fileoff_t, startoff) + __field(xfs_fsblock_t, startblock) + __field(xfs_filblks_t, blockcount) + __field(xfs_exntst_t, state) + __field(int, bmap_state) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + struct xfs_ifork *ifp = (state & BMAP_ATTRFORK) ? + ip->i_afp : &ip->i_df; + struct xfs_bmbt_irec r; + + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &r); + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->idx = idx; + __entry->startoff = r.br_startoff; + __entry->startblock = r.br_startblock; + __entry->blockcount = r.br_blockcount; + __entry->state = r.br_state; + __entry->bmap_state = state; + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d ino 0x%llx state %s idx %ld " + "offset %lld block %s count %lld flag %d caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_flags(__entry->bmap_state, "|", XFS_BMAP_EXT_FLAGS), + (long)__entry->idx, + __entry->startoff, + xfs_fmtfsblock(__entry->startblock), + __entry->blockcount, + __entry->state, + (char *)__entry->caller_ip) +) + #define DEFINE_BMAP_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_bmap_class, name, \ TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx, int state, \ unsigned long caller_ip), \ - TP_ARGS(ip, idx, state, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(xfs_extnum_t, idx) \ - __field(xfs_fileoff_t, startoff) \ - __field(xfs_fsblock_t, startblock) \ - __field(xfs_filblks_t, blockcount) \ - __field(xfs_exntst_t, state) \ - __field(int, bmap_state) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - struct xfs_ifork *ifp = (state & BMAP_ATTRFORK) ? \ - ip->i_afp : &ip->i_df; \ - struct xfs_bmbt_irec r; \ - \ - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &r); \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->idx = idx; \ - __entry->startoff = r.br_startoff; \ - __entry->startblock = r.br_startblock; \ - __entry->blockcount = r.br_blockcount; \ - __entry->state = r.br_state; \ - __entry->bmap_state = state; \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx state %s idx %ld " \ - "offset %lld block %s count %lld flag %d caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __print_flags(__entry->bmap_state, "|", XFS_BMAP_EXT_FLAGS), \ - (long)__entry->idx, \ - __entry->startoff, \ - xfs_fmtfsblock(__entry->startblock), \ - __entry->blockcount, \ - __entry->state, \ - (char *)__entry->caller_ip) \ -) - + TP_ARGS(ip, idx, state, caller_ip)) DEFINE_BMAP_EVENT(xfs_iext_remove); DEFINE_BMAP_EVENT(xfs_bmap_pre_update); DEFINE_BMAP_EVENT(xfs_bmap_post_update); DEFINE_BMAP_EVENT(xfs_extlist); -#define DEFINE_BUF_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip), \ - TP_ARGS(bp, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_daddr_t, bno) \ - __field(size_t, buffer_length) \ - __field(int, hold) \ - __field(int, pincount) \ - __field(unsigned, lockval) \ - __field(unsigned, flags) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = bp->b_target->bt_dev; \ - __entry->bno = bp->b_bn; \ - __entry->buffer_length = bp->b_buffer_length; \ - __entry->hold = atomic_read(&bp->b_hold); \ - __entry->pincount = atomic_read(&bp->b_pin_count); \ - __entry->lockval = xfs_buf_lock_value(bp); \ - __entry->flags = bp->b_flags; \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " \ - "lock %d flags %s caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - (unsigned long long)__entry->bno, \ - __entry->buffer_length, \ - __entry->hold, \ - __entry->pincount, \ - __entry->lockval, \ - __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), \ - (void *)__entry->caller_ip) \ +DECLARE_EVENT_CLASS(xfs_buf_class, + TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip), + TP_ARGS(bp, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_daddr_t, bno) + __field(size_t, buffer_length) + __field(int, hold) + __field(int, pincount) + __field(unsigned, lockval) + __field(unsigned, flags) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = bp->b_target->bt_dev; + __entry->bno = bp->b_bn; + __entry->buffer_length = bp->b_buffer_length; + __entry->hold = atomic_read(&bp->b_hold); + __entry->pincount = atomic_read(&bp->b_pin_count); + __entry->lockval = xfs_buf_lock_value(bp); + __entry->flags = bp->b_flags; + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " + "lock %d flags %s caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->bno, + __entry->buffer_length, + __entry->hold, + __entry->pincount, + __entry->lockval, + __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), + (void *)__entry->caller_ip) ) + +#define DEFINE_BUF_EVENT(name) \ +DEFINE_EVENT(xfs_buf_class, name, \ + TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip), \ + TP_ARGS(bp, caller_ip)) DEFINE_BUF_EVENT(xfs_buf_init); DEFINE_BUF_EVENT(xfs_buf_free); DEFINE_BUF_EVENT(xfs_buf_hold); @@ -299,41 +311,45 @@ DEFINE_BUF_EVENT(xfs_reset_dqcounts); DEFINE_BUF_EVENT(xfs_inode_item_push); /* pass flags explicitly */ -#define DEFINE_BUF_FLAGS_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_buf *bp, unsigned flags, unsigned long caller_ip), \ - TP_ARGS(bp, flags, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_daddr_t, bno) \ - __field(size_t, buffer_length) \ - __field(int, hold) \ - __field(int, pincount) \ - __field(unsigned, lockval) \ - __field(unsigned, flags) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = bp->b_target->bt_dev; \ - __entry->bno = bp->b_bn; \ - __entry->buffer_length = bp->b_buffer_length; \ - __entry->flags = flags; \ - __entry->hold = atomic_read(&bp->b_hold); \ - __entry->pincount = atomic_read(&bp->b_pin_count); \ - __entry->lockval = xfs_buf_lock_value(bp); \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " \ - "lock %d flags %s caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - (unsigned long long)__entry->bno, \ - __entry->buffer_length, \ - __entry->hold, \ - __entry->pincount, \ - __entry->lockval, \ - __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), \ - (void *)__entry->caller_ip) \ +DECLARE_EVENT_CLASS(xfs_buf_flags_class, + TP_PROTO(struct xfs_buf *bp, unsigned flags, unsigned long caller_ip), + TP_ARGS(bp, flags, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_daddr_t, bno) + __field(size_t, buffer_length) + __field(int, hold) + __field(int, pincount) + __field(unsigned, lockval) + __field(unsigned, flags) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = bp->b_target->bt_dev; + __entry->bno = bp->b_bn; + __entry->buffer_length = bp->b_buffer_length; + __entry->flags = flags; + __entry->hold = atomic_read(&bp->b_hold); + __entry->pincount = atomic_read(&bp->b_pin_count); + __entry->lockval = xfs_buf_lock_value(bp); + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " + "lock %d flags %s caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->bno, + __entry->buffer_length, + __entry->hold, + __entry->pincount, + __entry->lockval, + __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), + (void *)__entry->caller_ip) ) + +#define DEFINE_BUF_FLAGS_EVENT(name) \ +DEFINE_EVENT(xfs_buf_flags_class, name, \ + TP_PROTO(struct xfs_buf *bp, unsigned flags, unsigned long caller_ip), \ + TP_ARGS(bp, flags, caller_ip)) DEFINE_BUF_FLAGS_EVENT(xfs_buf_find); DEFINE_BUF_FLAGS_EVENT(xfs_buf_get); DEFINE_BUF_FLAGS_EVENT(xfs_buf_read); @@ -376,55 +392,58 @@ TRACE_EVENT(xfs_buf_ioerror, (void *)__entry->caller_ip) ); -#define DEFINE_BUF_ITEM_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_buf_log_item *bip), \ - TP_ARGS(bip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_daddr_t, buf_bno) \ - __field(size_t, buf_len) \ - __field(int, buf_hold) \ - __field(int, buf_pincount) \ - __field(int, buf_lockval) \ - __field(unsigned, buf_flags) \ - __field(unsigned, bli_recur) \ - __field(int, bli_refcount) \ - __field(unsigned, bli_flags) \ - __field(void *, li_desc) \ - __field(unsigned, li_flags) \ - ), \ - TP_fast_assign( \ - __entry->dev = bip->bli_buf->b_target->bt_dev; \ - __entry->bli_flags = bip->bli_flags; \ - __entry->bli_recur = bip->bli_recur; \ - __entry->bli_refcount = atomic_read(&bip->bli_refcount); \ - __entry->buf_bno = bip->bli_buf->b_bn; \ - __entry->buf_len = bip->bli_buf->b_buffer_length; \ - __entry->buf_flags = bip->bli_buf->b_flags; \ - __entry->buf_hold = atomic_read(&bip->bli_buf->b_hold); \ - __entry->buf_pincount = \ - atomic_read(&bip->bli_buf->b_pin_count); \ - __entry->buf_lockval = xfs_buf_lock_value(bip->bli_buf); \ - __entry->li_desc = bip->bli_item.li_desc; \ - __entry->li_flags = bip->bli_item.li_flags; \ - ), \ - TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " \ - "lock %d flags %s recur %d refcount %d bliflags %s " \ - "lidesc 0x%p liflags %s", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - (unsigned long long)__entry->buf_bno, \ - __entry->buf_len, \ - __entry->buf_hold, \ - __entry->buf_pincount, \ - __entry->buf_lockval, \ - __print_flags(__entry->buf_flags, "|", XFS_BUF_FLAGS), \ - __entry->bli_recur, \ - __entry->bli_refcount, \ - __print_flags(__entry->bli_flags, "|", XFS_BLI_FLAGS), \ - __entry->li_desc, \ - __print_flags(__entry->li_flags, "|", XFS_LI_FLAGS)) \ +DECLARE_EVENT_CLASS(xfs_buf_item_class, + TP_PROTO(struct xfs_buf_log_item *bip), + TP_ARGS(bip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_daddr_t, buf_bno) + __field(size_t, buf_len) + __field(int, buf_hold) + __field(int, buf_pincount) + __field(int, buf_lockval) + __field(unsigned, buf_flags) + __field(unsigned, bli_recur) + __field(int, bli_refcount) + __field(unsigned, bli_flags) + __field(void *, li_desc) + __field(unsigned, li_flags) + ), + TP_fast_assign( + __entry->dev = bip->bli_buf->b_target->bt_dev; + __entry->bli_flags = bip->bli_flags; + __entry->bli_recur = bip->bli_recur; + __entry->bli_refcount = atomic_read(&bip->bli_refcount); + __entry->buf_bno = bip->bli_buf->b_bn; + __entry->buf_len = bip->bli_buf->b_buffer_length; + __entry->buf_flags = bip->bli_buf->b_flags; + __entry->buf_hold = atomic_read(&bip->bli_buf->b_hold); + __entry->buf_pincount = atomic_read(&bip->bli_buf->b_pin_count); + __entry->buf_lockval = xfs_buf_lock_value(bip->bli_buf); + __entry->li_desc = bip->bli_item.li_desc; + __entry->li_flags = bip->bli_item.li_flags; + ), + TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " + "lock %d flags %s recur %d refcount %d bliflags %s " + "lidesc 0x%p liflags %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->buf_bno, + __entry->buf_len, + __entry->buf_hold, + __entry->buf_pincount, + __entry->buf_lockval, + __print_flags(__entry->buf_flags, "|", XFS_BUF_FLAGS), + __entry->bli_recur, + __entry->bli_refcount, + __print_flags(__entry->bli_flags, "|", XFS_BLI_FLAGS), + __entry->li_desc, + __print_flags(__entry->li_flags, "|", XFS_LI_FLAGS)) ) + +#define DEFINE_BUF_ITEM_EVENT(name) \ +DEFINE_EVENT(xfs_buf_item_class, name, \ + TP_PROTO(struct xfs_buf_log_item *bip), \ + TP_ARGS(bip)) DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size_stale); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_format); @@ -450,78 +469,90 @@ DEFINE_BUF_ITEM_EVENT(xfs_trans_bhold); DEFINE_BUF_ITEM_EVENT(xfs_trans_bhold_release); DEFINE_BUF_ITEM_EVENT(xfs_trans_binval); +DECLARE_EVENT_CLASS(xfs_lock_class, + TP_PROTO(struct xfs_inode *ip, unsigned lock_flags, + unsigned long caller_ip), + TP_ARGS(ip, lock_flags, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(int, lock_flags) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->lock_flags = lock_flags; + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d ino 0x%llx flags %s caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_flags(__entry->lock_flags, "|", XFS_LOCK_FLAGS), + (void *)__entry->caller_ip) +) + #define DEFINE_LOCK_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_lock_class, name, \ TP_PROTO(struct xfs_inode *ip, unsigned lock_flags, \ unsigned long caller_ip), \ - TP_ARGS(ip, lock_flags, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(int, lock_flags) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->lock_flags = lock_flags; \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx flags %s caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __print_flags(__entry->lock_flags, "|", XFS_LOCK_FLAGS), \ - (void *)__entry->caller_ip) \ -) - + TP_ARGS(ip, lock_flags, caller_ip)) DEFINE_LOCK_EVENT(xfs_ilock); DEFINE_LOCK_EVENT(xfs_ilock_nowait); DEFINE_LOCK_EVENT(xfs_ilock_demote); DEFINE_LOCK_EVENT(xfs_iunlock); +DECLARE_EVENT_CLASS(xfs_iget_class, + TP_PROTO(struct xfs_inode *ip), + TP_ARGS(ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + ), + TP_printk("dev %d:%d ino 0x%llx", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino) +) + #define DEFINE_IGET_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_iget_class, name, \ TP_PROTO(struct xfs_inode *ip), \ - TP_ARGS(ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino) \ -) + TP_ARGS(ip)) DEFINE_IGET_EVENT(xfs_iget_skip); DEFINE_IGET_EVENT(xfs_iget_reclaim); DEFINE_IGET_EVENT(xfs_iget_found); DEFINE_IGET_EVENT(xfs_iget_alloc); +DECLARE_EVENT_CLASS(xfs_inode_class, + TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), + TP_ARGS(ip, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(int, count) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->count = atomic_read(&VFS_I(ip)->i_count); + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d ino 0x%llx count %d caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->count, + (char *)__entry->caller_ip) +) + #define DEFINE_INODE_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_inode_class, name, \ TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), \ - TP_ARGS(ip, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(int, count) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->count = atomic_read(&VFS_I(ip)->i_count); \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx count %d caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->count, \ - (char *)__entry->caller_ip) \ -) + TP_ARGS(ip, caller_ip)) DEFINE_INODE_EVENT(xfs_ihold); DEFINE_INODE_EVENT(xfs_irele); /* the old xfs_itrace_entry tracer - to be replaced by s.th. in the VFS */ @@ -529,55 +560,59 @@ DEFINE_INODE_EVENT(xfs_inode); #define xfs_itrace_entry(ip) \ trace_xfs_inode(ip, _THIS_IP_) -#define DEFINE_DQUOT_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_dquot *dqp), \ - TP_ARGS(dqp), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(__be32, id) \ - __field(unsigned, flags) \ - __field(unsigned, nrefs) \ - __field(unsigned long long, res_bcount) \ - __field(unsigned long long, bcount) \ - __field(unsigned long long, icount) \ - __field(unsigned long long, blk_hardlimit) \ - __field(unsigned long long, blk_softlimit) \ - __field(unsigned long long, ino_hardlimit) \ - __field(unsigned long long, ino_softlimit) \ - ), \ - TP_fast_assign( \ - __entry->dev = dqp->q_mount->m_super->s_dev; \ - __entry->id = dqp->q_core.d_id; \ - __entry->flags = dqp->dq_flags; \ - __entry->nrefs = dqp->q_nrefs; \ - __entry->res_bcount = dqp->q_res_bcount; \ - __entry->bcount = be64_to_cpu(dqp->q_core.d_bcount); \ - __entry->icount = be64_to_cpu(dqp->q_core.d_icount); \ - __entry->blk_hardlimit = \ - be64_to_cpu(dqp->q_core.d_blk_hardlimit); \ - __entry->blk_softlimit = \ - be64_to_cpu(dqp->q_core.d_blk_softlimit); \ - __entry->ino_hardlimit = \ - be64_to_cpu(dqp->q_core.d_ino_hardlimit); \ - __entry->ino_softlimit = \ - be64_to_cpu(dqp->q_core.d_ino_softlimit); \ +DECLARE_EVENT_CLASS(xfs_dquot_class, + TP_PROTO(struct xfs_dquot *dqp), + TP_ARGS(dqp), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(__be32, id) + __field(unsigned, flags) + __field(unsigned, nrefs) + __field(unsigned long long, res_bcount) + __field(unsigned long long, bcount) + __field(unsigned long long, icount) + __field(unsigned long long, blk_hardlimit) + __field(unsigned long long, blk_softlimit) + __field(unsigned long long, ino_hardlimit) + __field(unsigned long long, ino_softlimit) ), \ - TP_printk("dev %d:%d id 0x%x flags %s nrefs %u res_bc 0x%llx " \ - "bcnt 0x%llx [hard 0x%llx | soft 0x%llx] " \ - "icnt 0x%llx [hard 0x%llx | soft 0x%llx]", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - be32_to_cpu(__entry->id), \ - __print_flags(__entry->flags, "|", XFS_DQ_FLAGS), \ - __entry->nrefs, \ - __entry->res_bcount, \ - __entry->bcount, \ - __entry->blk_hardlimit, \ - __entry->blk_softlimit, \ - __entry->icount, \ - __entry->ino_hardlimit, \ - __entry->ino_softlimit) \ + TP_fast_assign( + __entry->dev = dqp->q_mount->m_super->s_dev; + __entry->id = dqp->q_core.d_id; + __entry->flags = dqp->dq_flags; + __entry->nrefs = dqp->q_nrefs; + __entry->res_bcount = dqp->q_res_bcount; + __entry->bcount = be64_to_cpu(dqp->q_core.d_bcount); + __entry->icount = be64_to_cpu(dqp->q_core.d_icount); + __entry->blk_hardlimit = + be64_to_cpu(dqp->q_core.d_blk_hardlimit); + __entry->blk_softlimit = + be64_to_cpu(dqp->q_core.d_blk_softlimit); + __entry->ino_hardlimit = + be64_to_cpu(dqp->q_core.d_ino_hardlimit); + __entry->ino_softlimit = + be64_to_cpu(dqp->q_core.d_ino_softlimit); + ), + TP_printk("dev %d:%d id 0x%x flags %s nrefs %u res_bc 0x%llx " + "bcnt 0x%llx [hard 0x%llx | soft 0x%llx] " + "icnt 0x%llx [hard 0x%llx | soft 0x%llx]", + MAJOR(__entry->dev), MINOR(__entry->dev), + be32_to_cpu(__entry->id), + __print_flags(__entry->flags, "|", XFS_DQ_FLAGS), + __entry->nrefs, + __entry->res_bcount, + __entry->bcount, + __entry->blk_hardlimit, + __entry->blk_softlimit, + __entry->icount, + __entry->ino_hardlimit, + __entry->ino_softlimit) ) + +#define DEFINE_DQUOT_EVENT(name) \ +DEFINE_EVENT(xfs_dquot_class, name, \ + TP_PROTO(struct xfs_dquot *dqp), \ + TP_ARGS(dqp)) DEFINE_DQUOT_EVENT(xfs_dqadjust); DEFINE_DQUOT_EVENT(xfs_dqshake_dirty); DEFINE_DQUOT_EVENT(xfs_dqshake_unlink); @@ -610,72 +645,75 @@ DEFINE_DQUOT_EVENT(xfs_dqflush_done); DEFINE_IGET_EVENT(xfs_dquot_dqalloc); DEFINE_IGET_EVENT(xfs_dquot_dqdetach); +DECLARE_EVENT_CLASS(xfs_loggrant_class, + TP_PROTO(struct log *log, struct xlog_ticket *tic), + TP_ARGS(log, tic), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(unsigned, trans_type) + __field(char, ocnt) + __field(char, cnt) + __field(int, curr_res) + __field(int, unit_res) + __field(unsigned int, flags) + __field(void *, reserve_headq) + __field(void *, write_headq) + __field(int, grant_reserve_cycle) + __field(int, grant_reserve_bytes) + __field(int, grant_write_cycle) + __field(int, grant_write_bytes) + __field(int, curr_cycle) + __field(int, curr_block) + __field(xfs_lsn_t, tail_lsn) + ), + TP_fast_assign( + __entry->dev = log->l_mp->m_super->s_dev; + __entry->trans_type = tic->t_trans_type; + __entry->ocnt = tic->t_ocnt; + __entry->cnt = tic->t_cnt; + __entry->curr_res = tic->t_curr_res; + __entry->unit_res = tic->t_unit_res; + __entry->flags = tic->t_flags; + __entry->reserve_headq = log->l_reserve_headq; + __entry->write_headq = log->l_write_headq; + __entry->grant_reserve_cycle = log->l_grant_reserve_cycle; + __entry->grant_reserve_bytes = log->l_grant_reserve_bytes; + __entry->grant_write_cycle = log->l_grant_write_cycle; + __entry->grant_write_bytes = log->l_grant_write_bytes; + __entry->curr_cycle = log->l_curr_cycle; + __entry->curr_block = log->l_curr_block; + __entry->tail_lsn = log->l_tail_lsn; + ), + TP_printk("dev %d:%d type %s t_ocnt %u t_cnt %u t_curr_res %u " + "t_unit_res %u t_flags %s reserve_headq 0x%p " + "write_headq 0x%p grant_reserve_cycle %d " + "grant_reserve_bytes %d grant_write_cycle %d " + "grant_write_bytes %d curr_cycle %d curr_block %d " + "tail_cycle %d tail_block %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __print_symbolic(__entry->trans_type, XFS_TRANS_TYPES), + __entry->ocnt, + __entry->cnt, + __entry->curr_res, + __entry->unit_res, + __print_flags(__entry->flags, "|", XLOG_TIC_FLAGS), + __entry->reserve_headq, + __entry->write_headq, + __entry->grant_reserve_cycle, + __entry->grant_reserve_bytes, + __entry->grant_write_cycle, + __entry->grant_write_bytes, + __entry->curr_cycle, + __entry->curr_block, + CYCLE_LSN(__entry->tail_lsn), + BLOCK_LSN(__entry->tail_lsn) + ) +) -#define DEFINE_LOGGRANT_EVENT(tname) \ -TRACE_EVENT(tname, \ +#define DEFINE_LOGGRANT_EVENT(name) \ +DEFINE_EVENT(xfs_loggrant_class, name, \ TP_PROTO(struct log *log, struct xlog_ticket *tic), \ - TP_ARGS(log, tic), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(unsigned, trans_type) \ - __field(char, ocnt) \ - __field(char, cnt) \ - __field(int, curr_res) \ - __field(int, unit_res) \ - __field(unsigned int, flags) \ - __field(void *, reserve_headq) \ - __field(void *, write_headq) \ - __field(int, grant_reserve_cycle) \ - __field(int, grant_reserve_bytes) \ - __field(int, grant_write_cycle) \ - __field(int, grant_write_bytes) \ - __field(int, curr_cycle) \ - __field(int, curr_block) \ - __field(xfs_lsn_t, tail_lsn) \ - ), \ - TP_fast_assign( \ - __entry->dev = log->l_mp->m_super->s_dev; \ - __entry->trans_type = tic->t_trans_type; \ - __entry->ocnt = tic->t_ocnt; \ - __entry->cnt = tic->t_cnt; \ - __entry->curr_res = tic->t_curr_res; \ - __entry->unit_res = tic->t_unit_res; \ - __entry->flags = tic->t_flags; \ - __entry->reserve_headq = log->l_reserve_headq; \ - __entry->write_headq = log->l_write_headq; \ - __entry->grant_reserve_cycle = log->l_grant_reserve_cycle; \ - __entry->grant_reserve_bytes = log->l_grant_reserve_bytes; \ - __entry->grant_write_cycle = log->l_grant_write_cycle; \ - __entry->grant_write_bytes = log->l_grant_write_bytes; \ - __entry->curr_cycle = log->l_curr_cycle; \ - __entry->curr_block = log->l_curr_block; \ - __entry->tail_lsn = log->l_tail_lsn; \ - ), \ - TP_printk("dev %d:%d type %s t_ocnt %u t_cnt %u t_curr_res %u " \ - "t_unit_res %u t_flags %s reserve_headq 0x%p " \ - "write_headq 0x%p grant_reserve_cycle %d " \ - "grant_reserve_bytes %d grant_write_cycle %d " \ - "grant_write_bytes %d curr_cycle %d curr_block %d " \ - "tail_cycle %d tail_block %d", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __print_symbolic(__entry->trans_type, XFS_TRANS_TYPES), \ - __entry->ocnt, \ - __entry->cnt, \ - __entry->curr_res, \ - __entry->unit_res, \ - __print_flags(__entry->flags, "|", XLOG_TIC_FLAGS), \ - __entry->reserve_headq, \ - __entry->write_headq, \ - __entry->grant_reserve_cycle, \ - __entry->grant_reserve_bytes, \ - __entry->grant_write_cycle, \ - __entry->grant_write_bytes, \ - __entry->curr_cycle, \ - __entry->curr_block, \ - CYCLE_LSN(__entry->tail_lsn), \ - BLOCK_LSN(__entry->tail_lsn) \ - ) \ -) + TP_ARGS(log, tic)) DEFINE_LOGGRANT_EVENT(xfs_log_done_nonperm); DEFINE_LOGGRANT_EVENT(xfs_log_done_perm); DEFINE_LOGGRANT_EVENT(xfs_log_reserve); @@ -815,7 +853,7 @@ TRACE_EVENT(name, \ ), \ TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx " \ "offset 0x%llx count %zd flags %s " \ - "startoff 0x%llx startblock 0x%llx blockcount 0x%llx", \ + "startoff 0x%llx startblock %s blockcount 0x%llx", \ MAJOR(__entry->dev), MINOR(__entry->dev), \ __entry->ino, \ __entry->size, \ @@ -824,7 +862,7 @@ TRACE_EVENT(name, \ __entry->count, \ __print_flags(__entry->flags, "|", BMAPI_FLAGS), \ __entry->startoff, \ - __entry->startblock, \ + xfs_fmtfsblock(__entry->startblock), \ __entry->blockcount) \ ) DEFINE_IOMAP_EVENT(xfs_iomap_enter); @@ -897,28 +935,32 @@ TRACE_EVENT(xfs_itruncate_start, __entry->toss_finish) ); +DECLARE_EVENT_CLASS(xfs_itrunc_class, + TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size), + TP_ARGS(ip, new_size), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(xfs_fsize_t, size) + __field(xfs_fsize_t, new_size) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->size = ip->i_d.di_size; + __entry->new_size = new_size; + ), + TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->size, + __entry->new_size) +) + #define DEFINE_ITRUNC_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_itrunc_class, name, \ TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size), \ - TP_ARGS(ip, new_size), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(xfs_fsize_t, size) \ - __field(xfs_fsize_t, new_size) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->size = ip->i_d.di_size; \ - __entry->new_size = new_size; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->size, \ - __entry->new_size) \ -) + TP_ARGS(ip, new_size)) DEFINE_ITRUNC_EVENT(xfs_itruncate_finish_start); DEFINE_ITRUNC_EVENT(xfs_itruncate_finish_end); @@ -1037,28 +1079,28 @@ TRACE_EVENT(xfs_alloc_unbusy, TRACE_EVENT(xfs_alloc_busysearch, TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, xfs_agblock_t agbno, - xfs_extlen_t len, int found), - TP_ARGS(mp, agno, agbno, len, found), + xfs_extlen_t len, xfs_lsn_t lsn), + TP_ARGS(mp, agno, agbno, len, lsn), TP_STRUCT__entry( __field(dev_t, dev) __field(xfs_agnumber_t, agno) __field(xfs_agblock_t, agbno) __field(xfs_extlen_t, len) - __field(int, found) + __field(xfs_lsn_t, lsn) ), TP_fast_assign( __entry->dev = mp->m_super->s_dev; __entry->agno = agno; __entry->agbno = agbno; __entry->len = len; - __entry->found = found; + __entry->lsn = lsn; ), - TP_printk("dev %d:%d agno %u agbno %u len %u %s", + TP_printk("dev %d:%d agno %u agbno %u len %u force lsn 0x%llx", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->agno, __entry->agbno, __entry->len, - __print_symbolic(__entry->found, XFS_BUSY_STATES)) + __entry->lsn) ); TRACE_EVENT(xfs_agf, @@ -1152,77 +1194,80 @@ TRACE_EVENT(xfs_free_extent, ); -#define DEFINE_ALLOC_EVENT(name) \ -TRACE_EVENT(name, \ - TP_PROTO(struct xfs_alloc_arg *args), \ - TP_ARGS(args), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_agnumber_t, agno) \ - __field(xfs_agblock_t, agbno) \ - __field(xfs_extlen_t, minlen) \ - __field(xfs_extlen_t, maxlen) \ - __field(xfs_extlen_t, mod) \ - __field(xfs_extlen_t, prod) \ - __field(xfs_extlen_t, minleft) \ - __field(xfs_extlen_t, total) \ - __field(xfs_extlen_t, alignment) \ - __field(xfs_extlen_t, minalignslop) \ - __field(xfs_extlen_t, len) \ - __field(short, type) \ - __field(short, otype) \ - __field(char, wasdel) \ - __field(char, wasfromfl) \ - __field(char, isfl) \ - __field(char, userdata) \ - __field(xfs_fsblock_t, firstblock) \ - ), \ - TP_fast_assign( \ - __entry->dev = args->mp->m_super->s_dev; \ - __entry->agno = args->agno; \ - __entry->agbno = args->agbno; \ - __entry->minlen = args->minlen; \ - __entry->maxlen = args->maxlen; \ - __entry->mod = args->mod; \ - __entry->prod = args->prod; \ - __entry->minleft = args->minleft; \ - __entry->total = args->total; \ - __entry->alignment = args->alignment; \ - __entry->minalignslop = args->minalignslop; \ - __entry->len = args->len; \ - __entry->type = args->type; \ - __entry->otype = args->otype; \ - __entry->wasdel = args->wasdel; \ - __entry->wasfromfl = args->wasfromfl; \ - __entry->isfl = args->isfl; \ - __entry->userdata = args->userdata; \ - __entry->firstblock = args->firstblock; \ - ), \ - TP_printk("dev %d:%d agno %u agbno %u minlen %u maxlen %u mod %u " \ - "prod %u minleft %u total %u alignment %u minalignslop %u " \ - "len %u type %s otype %s wasdel %d wasfromfl %d isfl %d " \ - "userdata %d firstblock 0x%llx", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->agno, \ - __entry->agbno, \ - __entry->minlen, \ - __entry->maxlen, \ - __entry->mod, \ - __entry->prod, \ - __entry->minleft, \ - __entry->total, \ - __entry->alignment, \ - __entry->minalignslop, \ - __entry->len, \ - __print_symbolic(__entry->type, XFS_ALLOC_TYPES), \ - __print_symbolic(__entry->otype, XFS_ALLOC_TYPES), \ - __entry->wasdel, \ - __entry->wasfromfl, \ - __entry->isfl, \ - __entry->userdata, \ - __entry->firstblock) \ +DECLARE_EVENT_CLASS(xfs_alloc_class, + TP_PROTO(struct xfs_alloc_arg *args), + TP_ARGS(args), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_agnumber_t, agno) + __field(xfs_agblock_t, agbno) + __field(xfs_extlen_t, minlen) + __field(xfs_extlen_t, maxlen) + __field(xfs_extlen_t, mod) + __field(xfs_extlen_t, prod) + __field(xfs_extlen_t, minleft) + __field(xfs_extlen_t, total) + __field(xfs_extlen_t, alignment) + __field(xfs_extlen_t, minalignslop) + __field(xfs_extlen_t, len) + __field(short, type) + __field(short, otype) + __field(char, wasdel) + __field(char, wasfromfl) + __field(char, isfl) + __field(char, userdata) + __field(xfs_fsblock_t, firstblock) + ), + TP_fast_assign( + __entry->dev = args->mp->m_super->s_dev; + __entry->agno = args->agno; + __entry->agbno = args->agbno; + __entry->minlen = args->minlen; + __entry->maxlen = args->maxlen; + __entry->mod = args->mod; + __entry->prod = args->prod; + __entry->minleft = args->minleft; + __entry->total = args->total; + __entry->alignment = args->alignment; + __entry->minalignslop = args->minalignslop; + __entry->len = args->len; + __entry->type = args->type; + __entry->otype = args->otype; + __entry->wasdel = args->wasdel; + __entry->wasfromfl = args->wasfromfl; + __entry->isfl = args->isfl; + __entry->userdata = args->userdata; + __entry->firstblock = args->firstblock; + ), + TP_printk("dev %d:%d agno %u agbno %u minlen %u maxlen %u mod %u " + "prod %u minleft %u total %u alignment %u minalignslop %u " + "len %u type %s otype %s wasdel %d wasfromfl %d isfl %d " + "userdata %d firstblock 0x%llx", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->agno, + __entry->agbno, + __entry->minlen, + __entry->maxlen, + __entry->mod, + __entry->prod, + __entry->minleft, + __entry->total, + __entry->alignment, + __entry->minalignslop, + __entry->len, + __print_symbolic(__entry->type, XFS_ALLOC_TYPES), + __print_symbolic(__entry->otype, XFS_ALLOC_TYPES), + __entry->wasdel, + __entry->wasfromfl, + __entry->isfl, + __entry->userdata, + __entry->firstblock) ) +#define DEFINE_ALLOC_EVENT(name) \ +DEFINE_EVENT(xfs_alloc_class, name, \ + TP_PROTO(struct xfs_alloc_arg *args), \ + TP_ARGS(args)) DEFINE_ALLOC_EVENT(xfs_alloc_exact_done); DEFINE_ALLOC_EVENT(xfs_alloc_exact_error); DEFINE_ALLOC_EVENT(xfs_alloc_near_nominleft); @@ -1245,92 +1290,100 @@ DEFINE_ALLOC_EVENT(xfs_alloc_vextent_noagbp); DEFINE_ALLOC_EVENT(xfs_alloc_vextent_loopfailed); DEFINE_ALLOC_EVENT(xfs_alloc_vextent_allfailed); -#define DEFINE_DIR2_TRACE(tname) \ -TRACE_EVENT(tname, \ +DECLARE_EVENT_CLASS(xfs_dir2_class, + TP_PROTO(struct xfs_da_args *args), + TP_ARGS(args), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __dynamic_array(char, name, args->namelen) + __field(int, namelen) + __field(xfs_dahash_t, hashval) + __field(xfs_ino_t, inumber) + __field(int, op_flags) + ), + TP_fast_assign( + __entry->dev = VFS_I(args->dp)->i_sb->s_dev; + __entry->ino = args->dp->i_ino; + if (args->namelen) + memcpy(__get_str(name), args->name, args->namelen); + __entry->namelen = args->namelen; + __entry->hashval = args->hashval; + __entry->inumber = args->inumber; + __entry->op_flags = args->op_flags; + ), + TP_printk("dev %d:%d ino 0x%llx name %.*s namelen %d hashval 0x%x " + "inumber 0x%llx op_flags %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->namelen, + __entry->namelen ? __get_str(name) : NULL, + __entry->namelen, + __entry->hashval, + __entry->inumber, + __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS)) +) + +#define DEFINE_DIR2_EVENT(name) \ +DEFINE_EVENT(xfs_dir2_class, name, \ TP_PROTO(struct xfs_da_args *args), \ - TP_ARGS(args), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __dynamic_array(char, name, args->namelen) \ - __field(int, namelen) \ - __field(xfs_dahash_t, hashval) \ - __field(xfs_ino_t, inumber) \ - __field(int, op_flags) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(args->dp)->i_sb->s_dev; \ - __entry->ino = args->dp->i_ino; \ - if (args->namelen) \ - memcpy(__get_str(name), args->name, args->namelen); \ - __entry->namelen = args->namelen; \ - __entry->hashval = args->hashval; \ - __entry->inumber = args->inumber; \ - __entry->op_flags = args->op_flags; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx name %.*s namelen %d hashval 0x%x " \ - "inumber 0x%llx op_flags %s", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->namelen, \ - __entry->namelen ? __get_str(name) : NULL, \ - __entry->namelen, \ - __entry->hashval, \ - __entry->inumber, \ - __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS)) \ + TP_ARGS(args)) +DEFINE_DIR2_EVENT(xfs_dir2_sf_addname); +DEFINE_DIR2_EVENT(xfs_dir2_sf_create); +DEFINE_DIR2_EVENT(xfs_dir2_sf_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_sf_replace); +DEFINE_DIR2_EVENT(xfs_dir2_sf_removename); +DEFINE_DIR2_EVENT(xfs_dir2_sf_toino4); +DEFINE_DIR2_EVENT(xfs_dir2_sf_toino8); +DEFINE_DIR2_EVENT(xfs_dir2_sf_to_block); +DEFINE_DIR2_EVENT(xfs_dir2_block_addname); +DEFINE_DIR2_EVENT(xfs_dir2_block_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_block_replace); +DEFINE_DIR2_EVENT(xfs_dir2_block_removename); +DEFINE_DIR2_EVENT(xfs_dir2_block_to_sf); +DEFINE_DIR2_EVENT(xfs_dir2_block_to_leaf); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_addname); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_replace); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_removename); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_to_block); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_to_node); +DEFINE_DIR2_EVENT(xfs_dir2_node_addname); +DEFINE_DIR2_EVENT(xfs_dir2_node_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_node_replace); +DEFINE_DIR2_EVENT(xfs_dir2_node_removename); +DEFINE_DIR2_EVENT(xfs_dir2_node_to_leaf); + +DECLARE_EVENT_CLASS(xfs_dir2_space_class, + TP_PROTO(struct xfs_da_args *args, int idx), + TP_ARGS(args, idx), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(int, op_flags) + __field(int, idx) + ), + TP_fast_assign( + __entry->dev = VFS_I(args->dp)->i_sb->s_dev; + __entry->ino = args->dp->i_ino; + __entry->op_flags = args->op_flags; + __entry->idx = idx; + ), + TP_printk("dev %d:%d ino 0x%llx op_flags %s index %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS), + __entry->idx) ) -DEFINE_DIR2_TRACE(xfs_dir2_sf_addname); -DEFINE_DIR2_TRACE(xfs_dir2_sf_create); -DEFINE_DIR2_TRACE(xfs_dir2_sf_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_sf_replace); -DEFINE_DIR2_TRACE(xfs_dir2_sf_removename); -DEFINE_DIR2_TRACE(xfs_dir2_sf_toino4); -DEFINE_DIR2_TRACE(xfs_dir2_sf_toino8); -DEFINE_DIR2_TRACE(xfs_dir2_sf_to_block); -DEFINE_DIR2_TRACE(xfs_dir2_block_addname); -DEFINE_DIR2_TRACE(xfs_dir2_block_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_block_replace); -DEFINE_DIR2_TRACE(xfs_dir2_block_removename); -DEFINE_DIR2_TRACE(xfs_dir2_block_to_sf); -DEFINE_DIR2_TRACE(xfs_dir2_block_to_leaf); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_addname); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_replace); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_removename); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_to_block); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_to_node); -DEFINE_DIR2_TRACE(xfs_dir2_node_addname); -DEFINE_DIR2_TRACE(xfs_dir2_node_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_node_replace); -DEFINE_DIR2_TRACE(xfs_dir2_node_removename); -DEFINE_DIR2_TRACE(xfs_dir2_node_to_leaf); -#define DEFINE_DIR2_SPACE_TRACE(tname) \ -TRACE_EVENT(tname, \ +#define DEFINE_DIR2_SPACE_EVENT(name) \ +DEFINE_EVENT(xfs_dir2_space_class, name, \ TP_PROTO(struct xfs_da_args *args, int idx), \ - TP_ARGS(args, idx), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(int, op_flags) \ - __field(int, idx) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(args->dp)->i_sb->s_dev; \ - __entry->ino = args->dp->i_ino; \ - __entry->op_flags = args->op_flags; \ - __entry->idx = idx; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx op_flags %s index %d", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS), \ - __entry->idx) \ -) -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_leafn_add); -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_leafn_remove); -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_grow_inode); -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_shrink_inode); + TP_ARGS(args, idx)) +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_leafn_add); +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_leafn_remove); +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_grow_inode); +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_shrink_inode); TRACE_EVENT(xfs_dir2_leafn_moveents, TP_PROTO(struct xfs_da_args *args, int src_idx, int dst_idx, int count), diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 71af76fe8a2..873e07e2907 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -891,7 +891,7 @@ xfs_qm_dqrele_all_inodes( uint flags) { ASSERT(mp->m_quotainfo); - xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, XFS_ICI_NO_TAG); + xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, XFS_ICI_NO_TAG, 0); } /*------------------------------------------------------------------------*/ diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index a1c65fc6d9c..275b1f4f943 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2563,43 +2563,41 @@ xfs_alloc_search_busy(xfs_trans_t *tp, xfs_mount_t *mp; xfs_perag_busy_t *bsy; xfs_agblock_t uend, bend; - xfs_lsn_t lsn; + xfs_lsn_t lsn = 0; int cnt; mp = tp->t_mountp; spin_lock(&mp->m_perag[agno].pagb_lock); - cnt = mp->m_perag[agno].pagb_count; uend = bno + len - 1; - /* search pagb_list for this slot, skipping open slots */ - for (bsy = mp->m_perag[agno].pagb_list; cnt; bsy++) { + /* + * search pagb_list for this slot, skipping open slots. We have to + * search the entire array as there may be multiple overlaps and + * we have to get the most recent LSN for the log force to push out + * all the transactions that span the range. + */ + for (cnt = 0; cnt < mp->m_perag[agno].pagb_count; cnt++) { + bsy = &mp->m_perag[agno].pagb_list[cnt]; + if (!bsy->busy_tp) + continue; - /* - * (start1,length1) within (start2, length2) - */ - if (bsy->busy_tp != NULL) { - bend = bsy->busy_start + bsy->busy_length - 1; - if ((bno > bend) || (uend < bsy->busy_start)) { - cnt--; - } else { - break; - } - } - } + bend = bsy->busy_start + bsy->busy_length - 1; + if (bno > bend || uend < bsy->busy_start) + continue; - trace_xfs_alloc_busysearch(mp, agno, bno, len, !!cnt); + /* (start1,length1) within (start2, length2) */ + if (XFS_LSN_CMP(bsy->busy_tp->t_commit_lsn, lsn) > 0) + lsn = bsy->busy_tp->t_commit_lsn; + } + spin_unlock(&mp->m_perag[agno].pagb_lock); + trace_xfs_alloc_busysearch(tp->t_mountp, agno, bno, len, lsn); /* * If a block was found, force the log through the LSN of the * transaction that freed the block */ - if (cnt) { - lsn = bsy->busy_tp->t_commit_lsn; - spin_unlock(&mp->m_perag[agno].pagb_lock); + if (lsn) xfs_log_force(mp, lsn, XFS_LOG_FORCE|XFS_LOG_SYNC); - } else { - spin_unlock(&mp->m_perag[agno].pagb_lock); - } } diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index d1483a4f71b..84ca1cf16a1 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -114,10 +114,82 @@ xfs_swapext( return error; } +/* + * We need to check that the format of the data fork in the temporary inode is + * valid for the target inode before doing the swap. This is not a problem with + * attr1 because of the fixed fork offset, but attr2 has a dynamically sized + * data fork depending on the space the attribute fork is taking so we can get + * invalid formats on the target inode. + * + * E.g. target has space for 7 extents in extent format, temp inode only has + * space for 6. If we defragment down to 7 extents, then the tmp format is a + * btree, but when swapped it needs to be in extent format. Hence we can't just + * blindly swap data forks on attr2 filesystems. + * + * Note that we check the swap in both directions so that we don't end up with + * a corrupt temporary inode, either. + * + * Note that fixing the way xfs_fsr sets up the attribute fork in the source + * inode will prevent this situation from occurring, so all we do here is + * reject and log the attempt. basically we are putting the responsibility on + * userspace to get this right. + */ +static int +xfs_swap_extents_check_format( + xfs_inode_t *ip, /* target inode */ + xfs_inode_t *tip) /* tmp inode */ +{ + + /* Should never get a local format */ + if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL || + tip->i_d.di_format == XFS_DINODE_FMT_LOCAL) + return EINVAL; + + /* + * if the target inode has less extents that then temporary inode then + * why did userspace call us? + */ + if (ip->i_d.di_nextents < tip->i_d.di_nextents) + return EINVAL; + + /* + * if the target inode is in extent form and the temp inode is in btree + * form then we will end up with the target inode in the wrong format + * as we already know there are less extents in the temp inode. + */ + if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS && + tip->i_d.di_format == XFS_DINODE_FMT_BTREE) + return EINVAL; + + /* Check temp in extent form to max in target */ + if (tip->i_d.di_format == XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) > ip->i_df.if_ext_max) + return EINVAL; + + /* Check target in extent form to max in temp */ + if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) > tip->i_df.if_ext_max) + return EINVAL; + + /* Check root block of temp in btree form to max in target */ + if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE && + XFS_IFORK_BOFF(ip) && + tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip)) + return EINVAL; + + /* Check root block of target in btree form to max in temp */ + if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE && + XFS_IFORK_BOFF(tip) && + ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip)) + return EINVAL; + + return 0; +} + int xfs_swap_extents( - xfs_inode_t *ip, - xfs_inode_t *tip, + xfs_inode_t *ip, /* target inode */ + xfs_inode_t *tip, /* tmp inode */ xfs_swapext_t *sxp) { xfs_mount_t *mp; @@ -161,13 +233,6 @@ xfs_swap_extents( goto out_unlock; } - /* Should never get a local format */ - if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL || - tip->i_d.di_format == XFS_DINODE_FMT_LOCAL) { - error = XFS_ERROR(EINVAL); - goto out_unlock; - } - if (VN_CACHED(VFS_I(tip)) != 0) { error = xfs_flushinval_pages(tip, 0, -1, FI_REMAPF_LOCKED); @@ -189,13 +254,12 @@ xfs_swap_extents( goto out_unlock; } - /* - * If the target has extended attributes, the tmp file - * must also in order to ensure the correct data fork - * format. - */ - if ( XFS_IFORK_Q(ip) != XFS_IFORK_Q(tip) ) { - error = XFS_ERROR(EINVAL); + /* check inode formats now that data is flushed */ + error = xfs_swap_extents_check_format(ip, tip); + if (error) { + xfs_fs_cmn_err(CE_NOTE, mp, + "%s: inode 0x%llx format is incompatible for exchanging.", + __FILE__, ip->i_ino); goto out_unlock; } @@ -276,6 +340,16 @@ xfs_swap_extents( *tifp = *tempifp; /* struct copy */ /* + * Fix the in-memory data fork values that are dependent on the fork + * offset in the inode. We can't assume they remain the same as attr2 + * has dynamic fork offsets. + */ + ifp->if_ext_max = XFS_IFORK_SIZE(ip, XFS_DATA_FORK) / + (uint)sizeof(xfs_bmbt_rec_t); + tifp->if_ext_max = XFS_IFORK_SIZE(tip, XFS_DATA_FORK) / + (uint)sizeof(xfs_bmbt_rec_t); + + /* * Fix the on-disk inode values */ tmp = (__uint64_t)ip->i_d.di_nblocks; diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index fa402a6bbbc..155e798f30a 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -73,7 +73,6 @@ xfs_inode_alloc( ASSERT(atomic_read(&ip->i_pincount) == 0); ASSERT(!spin_is_locked(&ip->i_flags_lock)); ASSERT(completion_done(&ip->i_flush)); - ASSERT(!rwsem_is_locked(&ip->i_iolock.mr_lock)); mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index ce278b3ae7f..ef77fd88c8e 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2841,8 +2841,8 @@ xfs_iflush( mp = ip->i_mount; /* - * If the inode isn't dirty, then just release the inode - * flush lock and do nothing. + * If the inode isn't dirty, then just release the inode flush lock and + * do nothing. */ if (xfs_inode_clean(ip)) { xfs_ifunlock(ip); @@ -2868,6 +2868,19 @@ xfs_iflush( xfs_iunpin_wait(ip); /* + * For stale inodes we cannot rely on the backing buffer remaining + * stale in cache for the remaining life of the stale inode and so + * xfs_itobp() below may give us a buffer that no longer contains + * inodes below. We have to check this after ensuring the inode is + * unpinned so that it is safe to reclaim the stale inode after the + * flush call. + */ + if (xfs_iflags_test(ip, XFS_ISTALE)) { + xfs_ifunlock(ip); + return 0; + } + + /* * This may have been unpinned because the filesystem is shutting * down forcibly. If that's the case we must not write this inode * to disk, because the log record didn't make it to disk! diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 9e15a118536..6be05f756d5 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -1517,6 +1517,8 @@ xfs_rtfree_range( */ error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1, &postblock); + if (error) + return error; /* * If there are blocks not being freed at the front of the * old extent, add summary data for them to be allocated. diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 6558ffd8d14..6f268756bf3 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -70,7 +70,6 @@ xfs_setattr( uint commit_flags=0; uid_t uid=0, iuid=0; gid_t gid=0, igid=0; - int timeflags = 0; struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2; int need_iolock = 1; @@ -135,16 +134,13 @@ xfs_setattr( if (flags & XFS_ATTR_NOLOCK) need_iolock = 0; if (!(mask & ATTR_SIZE)) { - if ((mask != (ATTR_CTIME|ATTR_ATIME|ATTR_MTIME)) || - (mp->m_flags & XFS_MOUNT_WSYNC)) { - tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE); - commit_flags = 0; - if ((code = xfs_trans_reserve(tp, 0, - XFS_ICHANGE_LOG_RES(mp), 0, - 0, 0))) { - lock_flags = 0; - goto error_return; - } + tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE); + commit_flags = 0; + code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), + 0, 0, 0); + if (code) { + lock_flags = 0; + goto error_return; } } else { if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) && @@ -295,15 +291,23 @@ xfs_setattr( * or we are explicitly asked to change it. This handles * the semantic difference between truncate() and ftruncate() * as implemented in the VFS. + * + * The regular truncate() case without ATTR_CTIME and ATTR_MTIME + * is a special case where we need to update the times despite + * not having these flags set. For all other operations the + * VFS set these flags explicitly if it wants a timestamp + * update. */ - if (iattr->ia_size != ip->i_size || (mask & ATTR_CTIME)) - timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG; + if (iattr->ia_size != ip->i_size && + (!(mask & (ATTR_CTIME | ATTR_MTIME)))) { + iattr->ia_ctime = iattr->ia_mtime = + current_fs_time(inode->i_sb); + mask |= ATTR_CTIME | ATTR_MTIME; + } if (iattr->ia_size > ip->i_size) { ip->i_d.di_size = iattr->ia_size; ip->i_size = iattr->ia_size; - if (!(flags & XFS_ATTR_DMI)) - xfs_ichgtime(ip, XFS_ICHGTIME_CHG); xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); } else if (iattr->ia_size <= ip->i_size || (iattr->ia_size == 0 && ip->i_d.di_nextents)) { @@ -374,9 +378,6 @@ xfs_setattr( ip->i_d.di_gid = gid; inode->i_gid = gid; } - - xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE); - timeflags |= XFS_ICHGTIME_CHG; } /* @@ -393,51 +394,37 @@ xfs_setattr( inode->i_mode &= S_IFMT; inode->i_mode |= mode & ~S_IFMT; - - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - timeflags |= XFS_ICHGTIME_CHG; } /* * Change file access or modified times. */ - if (mask & (ATTR_ATIME|ATTR_MTIME)) { - if (mask & ATTR_ATIME) { - inode->i_atime = iattr->ia_atime; - ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec; - ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec; - ip->i_update_core = 1; - } - if (mask & ATTR_MTIME) { - inode->i_mtime = iattr->ia_mtime; - ip->i_d.di_mtime.t_sec = iattr->ia_mtime.tv_sec; - ip->i_d.di_mtime.t_nsec = iattr->ia_mtime.tv_nsec; - timeflags &= ~XFS_ICHGTIME_MOD; - timeflags |= XFS_ICHGTIME_CHG; - } - if (tp && (mask & (ATTR_MTIME_SET|ATTR_ATIME_SET))) - xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE); + if (mask & ATTR_ATIME) { + inode->i_atime = iattr->ia_atime; + ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec; + ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec; + ip->i_update_core = 1; } - - /* - * Change file inode change time only if ATTR_CTIME set - * AND we have been called by a DMI function. - */ - - if ((flags & XFS_ATTR_DMI) && (mask & ATTR_CTIME)) { + if (mask & ATTR_CTIME) { inode->i_ctime = iattr->ia_ctime; ip->i_d.di_ctime.t_sec = iattr->ia_ctime.tv_sec; ip->i_d.di_ctime.t_nsec = iattr->ia_ctime.tv_nsec; ip->i_update_core = 1; - timeflags &= ~XFS_ICHGTIME_CHG; + } + if (mask & ATTR_MTIME) { + inode->i_mtime = iattr->ia_mtime; + ip->i_d.di_mtime.t_sec = iattr->ia_mtime.tv_sec; + ip->i_d.di_mtime.t_nsec = iattr->ia_mtime.tv_nsec; + ip->i_update_core = 1; } /* - * Send out timestamp changes that need to be set to the - * current time. Not done when called by a DMI function. + * And finally, log the inode core if any attribute in it + * has been changed. */ - if (timeflags && !(flags & XFS_ATTR_DMI)) - xfs_ichgtime(ip, timeflags); + if (mask & (ATTR_UID|ATTR_GID|ATTR_MODE| + ATTR_ATIME|ATTR_CTIME|ATTR_MTIME)) + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); XFS_STATS_INC(xs_ig_attrchg); @@ -452,12 +439,10 @@ xfs_setattr( * mix so this probably isn't worth the trouble to optimize. */ code = 0; - if (tp) { - if (mp->m_flags & XFS_MOUNT_WSYNC) - xfs_trans_set_sync(tp); + if (mp->m_flags & XFS_MOUNT_WSYNC) + xfs_trans_set_sync(tp); - code = xfs_trans_commit(tp, commit_flags); - } + code = xfs_trans_commit(tp, commit_flags); xfs_iunlock(ip, lock_flags); |