diff options
Diffstat (limited to 'fs')
59 files changed, 1003 insertions, 1025 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 0d195b50766..9821b672f5a 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -116,7 +116,7 @@ struct btrfs_ordered_sum; #define BTRFS_FREE_SPACE_OBJECTID -11ULL /* - * The inode number assigned to the special inode for sotring + * The inode number assigned to the special inode for storing * free ino cache */ #define BTRFS_FREE_INO_OBJECTID -12ULL diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index ab530059584..c9d703693df 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -18,7 +18,7 @@ #ifndef __DELAYED_REF__ #define __DELAYED_REF__ -/* these are the possible values of struct btrfs_delayed_ref->action */ +/* these are the possible values of struct btrfs_delayed_ref_node->action */ #define BTRFS_ADD_DELAYED_REF 1 /* add one backref to the tree */ #define BTRFS_DROP_DELAYED_REF 2 /* delete one backref from the tree */ #define BTRFS_ADD_DELAYED_EXTENT 3 /* record a full extent allocation */ diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ec154f95464..316b07a866d 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1971,8 +1971,8 @@ out: ordered_extent->len - 1, NULL, GFP_NOFS); /* - * This needs to be dont to make sure anybody waiting knows we are done - * upating everything for this ordered extent. + * This needs to be done to make sure anybody waiting knows we are done + * updating everything for this ordered extent. */ btrfs_remove_ordered_extent(inode, ordered_extent); diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 38b42e7bc91..b6501558174 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1371,10 +1371,8 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, if (srcid) { srcgroup = find_qgroup_rb(fs_info, srcid); - if (!srcgroup) { - ret = -EINVAL; + if (!srcgroup) goto unlock; - } dstgroup->rfer = srcgroup->rfer - level_size; dstgroup->rfer_cmpr = srcgroup->rfer_cmpr - level_size; srcgroup->excl = level_size; @@ -1383,10 +1381,8 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, qgroup_dirty(fs_info, srcgroup); } - if (!inherit) { - ret = -EINVAL; + if (!inherit) goto unlock; - } i_qgroups = (u64 *)(inherit + 1); for (i = 0; i < inherit->num_qgroups; ++i) { diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 7dab9c04ad5..53cf2aabce8 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -328,7 +328,7 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen, } ctoUTF16_out: - return i; + return j; } #ifdef CONFIG_CIFS_SMB2 diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 074923ce593..f0cf934ba87 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1576,9 +1576,14 @@ cifs_readv_callback(struct mid_q_entry *mid) /* result already set, check signature */ if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) { - if (cifs_verify_signature(rdata->iov, rdata->nr_iov, - server, mid->sequence_number + 1)) - cERROR(1, "Unexpected SMB signature"); + int rc = 0; + + rc = cifs_verify_signature(rdata->iov, rdata->nr_iov, + server, + mid->sequence_number + 1); + if (rc) + cERROR(1, "SMB signature verification returned " + "error = %d", rc); } /* FIXME: should this be counted toward the initiating task? */ task_io_account_read(rdata->bytes); diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index cbe709ad666..781025be48b 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -356,19 +356,12 @@ cifs_create_get_file_info: cifs_create_set_dentry: if (rc != 0) { cFYI(1, "Create worked, get_inode_info failed rc = %d", rc); + CIFSSMBClose(xid, tcon, *fileHandle); goto out; } d_drop(direntry); d_add(direntry, newinode); - /* ENOENT for create? How weird... */ - rc = -ENOENT; - if (!newinode) { - CIFSSMBClose(xid, tcon, *fileHandle); - goto out; - } - rc = 0; - out: kfree(buf); kfree(full_path); diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 9154192b068..71e9ad9f596 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -917,7 +917,7 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile) if (!buf) { mutex_unlock(&cinode->lock_mutex); free_xid(xid); - return rc; + return -ENOMEM; } for (i = 0; i < 2; i++) { diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 7354877fa3b..cb79c7edecb 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -124,10 +124,10 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) { struct cifsInodeInfo *cifs_i = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); - unsigned long oldtime = cifs_i->time; cifs_revalidate_cache(inode, fattr); + spin_lock(&inode->i_lock); inode->i_atime = fattr->cf_atime; inode->i_mtime = fattr->cf_mtime; inode->i_ctime = fattr->cf_ctime; @@ -148,9 +148,6 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) else cifs_i->time = jiffies; - cFYI(1, "inode 0x%p old_time=%ld new_time=%ld", inode, - oldtime, cifs_i->time); - cifs_i->delete_pending = fattr->cf_flags & CIFS_FATTR_DELETE_PENDING; cifs_i->server_eof = fattr->cf_eof; @@ -158,7 +155,6 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) * Can't safely change the file size here if the client is writing to * it due to potential races. */ - spin_lock(&inode->i_lock); if (is_size_safe_to_change(cifs_i, fattr->cf_eof)) { i_size_write(inode, fattr->cf_eof); @@ -859,12 +855,14 @@ struct inode *cifs_root_iget(struct super_block *sb) if (rc && tcon->ipc) { cFYI(1, "ipc connection - fake read inode"); + spin_lock(&inode->i_lock); inode->i_mode |= S_IFDIR; set_nlink(inode, 2); inode->i_op = &cifs_ipc_inode_ops; inode->i_fop = &simple_dir_operations; inode->i_uid = cifs_sb->mnt_uid; inode->i_gid = cifs_sb->mnt_gid; + spin_unlock(&inode->i_lock); } else if (rc) { iget_failed(inode); inode = ERR_PTR(rc); @@ -1110,6 +1108,15 @@ undo_setattr: goto out_close; } +/* copied from fs/nfs/dir.c with small changes */ +static void +cifs_drop_nlink(struct inode *inode) +{ + spin_lock(&inode->i_lock); + if (inode->i_nlink > 0) + drop_nlink(inode); + spin_unlock(&inode->i_lock); +} /* * If dentry->d_inode is null (usually meaning the cached dentry @@ -1166,13 +1173,13 @@ retry_std_delete: psx_del_no_retry: if (!rc) { if (inode) - drop_nlink(inode); + cifs_drop_nlink(inode); } else if (rc == -ENOENT) { d_drop(dentry); } else if (rc == -ETXTBSY) { rc = cifs_rename_pending_delete(full_path, dentry, xid); if (rc == 0) - drop_nlink(inode); + cifs_drop_nlink(inode); } else if ((rc == -EACCES) && (dosattr == 0) && inode) { attrs = kzalloc(sizeof(*attrs), GFP_KERNEL); if (attrs == NULL) { @@ -1241,9 +1248,10 @@ cifs_mkdir_qinfo(struct inode *inode, struct dentry *dentry, umode_t mode, * setting nlink not necessary except in cases where we failed to get it * from the server or was set bogus */ + spin_lock(&dentry->d_inode->i_lock); if ((dentry->d_inode) && (dentry->d_inode->i_nlink < 2)) set_nlink(dentry->d_inode, 2); - + spin_unlock(&dentry->d_inode->i_lock); mode &= ~current_umask(); /* must turn on setgid bit if parent dir has it */ if (inode->i_mode & S_ISGID) diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 09e4b3ae456..e6ce3b11287 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -433,7 +433,9 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, if (old_file->d_inode) { cifsInode = CIFS_I(old_file->d_inode); if (rc == 0) { + spin_lock(&old_file->d_inode->i_lock); inc_nlink(old_file->d_inode); + spin_unlock(&old_file->d_inode->i_lock); /* BB should we make this contingent on superblock flag NOATIME? */ /* old_file->d_inode->i_ctime = CURRENT_TIME;*/ /* parent dir timestamps will update from srv diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index a4ff5d54755..e4d3b996416 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -52,7 +52,8 @@ check_smb2_hdr(struct smb2_hdr *hdr, __u64 mid) cERROR(1, "Bad protocol string signature header %x", *(unsigned int *) hdr->ProtocolId); if (mid != hdr->MessageId) - cERROR(1, "Mids do not match"); + cERROR(1, "Mids do not match: %llu and %llu", mid, + hdr->MessageId); } cERROR(1, "Bad SMB detected. The Mid=%llu", hdr->MessageId); return 1; @@ -107,7 +108,7 @@ smb2_check_message(char *buf, unsigned int length) * ie Validate the wct via smb2_struct_sizes table above */ - if (length < 2 + sizeof(struct smb2_hdr)) { + if (length < sizeof(struct smb2_pdu)) { if ((length >= sizeof(struct smb2_hdr)) && (hdr->Status != 0)) { pdu->StructureSize2 = 0; /* @@ -121,15 +122,15 @@ smb2_check_message(char *buf, unsigned int length) return 1; } if (len > CIFSMaxBufSize + MAX_SMB2_HDR_SIZE - 4) { - cERROR(1, "SMB length greater than maximum, mid=%lld", mid); + cERROR(1, "SMB length greater than maximum, mid=%llu", mid); return 1; } if (check_smb2_hdr(hdr, mid)) return 1; - if (hdr->StructureSize != SMB2_HEADER_SIZE) { - cERROR(1, "Illegal structure size %d", + if (hdr->StructureSize != SMB2_HEADER_STRUCTURE_SIZE) { + cERROR(1, "Illegal structure size %u", le16_to_cpu(hdr->StructureSize)); return 1; } @@ -161,8 +162,9 @@ smb2_check_message(char *buf, unsigned int length) if (4 + len != clc_len) { cFYI(1, "Calculated size %u length %u mismatch mid %llu", clc_len, 4 + len, mid); - if (clc_len == 4 + len + 1) /* BB FIXME (fix samba) */ - return 0; /* BB workaround Samba 3 bug SessSetup rsp */ + /* server can return one byte more */ + if (clc_len == 4 + len + 1) + return 0; return 1; } return 0; diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index f37a1b41b40..15dc8eea827 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -87,10 +87,6 @@ #define SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe) -#define SMB2_HEADER_SIZE __constant_le16_to_cpu(64) - -#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_le16_to_cpu(9) - /* * SMB2 Header Definition * @@ -99,6 +95,9 @@ * "PDU" : "Protocol Data Unit" (ie a network "frame") * */ + +#define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64) + struct smb2_hdr { __be32 smb2_buf_length; /* big endian on wire */ /* length is only two or three bytes - with @@ -140,6 +139,9 @@ struct smb2_pdu { * command code name for the struct. Note that structures must be packed. * */ + +#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9) + struct smb2_err_rsp { struct smb2_hdr hdr; __le16 StructureSize; diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 83867ef348d..d9b639b95fa 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -503,13 +503,16 @@ cifs_check_receive(struct mid_q_entry *mid, struct TCP_Server_Info *server, /* convert the length into a more usable form */ if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) { struct kvec iov; + int rc = 0; iov.iov_base = mid->resp_buf; iov.iov_len = len; /* FIXME: add code to kill session */ - if (cifs_verify_signature(&iov, 1, server, - mid->sequence_number + 1) != 0) - cERROR(1, "Unexpected SMB signature"); + rc = cifs_verify_signature(&iov, 1, server, + mid->sequence_number + 1); + if (rc) + cERROR(1, "SMB signature verification returned error = " + "%d", rc); } /* BB special case reconnect tid and uid here? */ diff --git a/fs/dcache.c b/fs/dcache.c index 8086636bf79..693f95bf1ca 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -389,7 +389,7 @@ static struct dentry *d_kill(struct dentry *dentry, struct dentry *parent) * Inform try_to_ascend() that we are no longer attached to the * dentry tree */ - dentry->d_flags |= DCACHE_DISCONNECTED; + dentry->d_flags |= DCACHE_DENTRY_KILLED; if (parent) spin_unlock(&parent->d_lock); dentry_iput(dentry); @@ -1048,7 +1048,7 @@ static struct dentry *try_to_ascend(struct dentry *old, int locked, unsigned seq * or deletion */ if (new != old->d_parent || - (old->d_flags & DCACHE_DISCONNECTED) || + (old->d_flags & DCACHE_DENTRY_KILLED) || (!locked && read_seqretry(&rename_lock, seq))) { spin_unlock(&new->d_lock); new = NULL; @@ -1134,6 +1134,8 @@ positive: return 1; rename_retry: + if (locked) + goto again; locked = 1; write_seqlock(&rename_lock); goto again; @@ -1141,7 +1143,7 @@ rename_retry: EXPORT_SYMBOL(have_submounts); /* - * Search the dentry child list for the specified parent, + * Search the dentry child list of the specified parent, * and move any unused dentries to the end of the unused * list for prune_dcache(). We descend to the next level * whenever the d_subdirs list is non-empty and continue @@ -1236,6 +1238,8 @@ out: rename_retry: if (found) return found; + if (locked) + goto again; locked = 1; write_seqlock(&rename_lock); goto again; @@ -3035,6 +3039,8 @@ resume: return; rename_retry: + if (locked) + goto again; locked = 1; write_seqlock(&rename_lock); goto again; diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 2340f6978d6..c5ca6ae5a30 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -526,73 +526,51 @@ struct array_data { u32 elements; }; -static int u32_array_open(struct inode *inode, struct file *file) -{ - file->private_data = NULL; - return nonseekable_open(inode, file); -} - -static size_t format_array(char *buf, size_t bufsize, const char *fmt, - u32 *array, u32 array_size) +static size_t u32_format_array(char *buf, size_t bufsize, + u32 *array, int array_size) { size_t ret = 0; - u32 i; - for (i = 0; i < array_size; i++) { + while (--array_size >= 0) { size_t len; + char term = array_size ? ' ' : '\n'; - len = snprintf(buf, bufsize, fmt, array[i]); - len++; /* ' ' or '\n' */ + len = snprintf(buf, bufsize, "%u%c", *array++, term); ret += len; - if (buf) { - buf += len; - bufsize -= len; - buf[-1] = (i == array_size-1) ? '\n' : ' '; - } + buf += len; + bufsize -= len; } - - ret++; /* \0 */ - if (buf) - *buf = '\0'; - return ret; } -static char *format_array_alloc(const char *fmt, u32 *array, - u32 array_size) +static int u32_array_open(struct inode *inode, struct file *file) { - size_t len = format_array(NULL, 0, fmt, array, array_size); - char *ret; - - ret = kmalloc(len, GFP_KERNEL); - if (ret == NULL) - return NULL; + struct array_data *data = inode->i_private; + int size, elements = data->elements; + char *buf; + + /* + * Max size: + * - 10 digits + ' '/'\n' = 11 bytes per number + * - terminating NUL character + */ + size = elements*11; + buf = kmalloc(size+1, GFP_KERNEL); + if (!buf) + return -ENOMEM; + buf[size] = 0; + + file->private_data = buf; + u32_format_array(buf, size, data->array, data->elements); - format_array(ret, len, fmt, array, array_size); - return ret; + return nonseekable_open(inode, file); } static ssize_t u32_array_read(struct file *file, char __user *buf, size_t len, loff_t *ppos) { - struct inode *inode = file->f_path.dentry->d_inode; - struct array_data *data = inode->i_private; - size_t size; - - if (*ppos == 0) { - if (file->private_data) { - kfree(file->private_data); - file->private_data = NULL; - } - - file->private_data = format_array_alloc("%u", data->array, - data->elements); - } - - size = 0; - if (file->private_data) - size = strlen(file->private_data); + size_t size = strlen(file->private_data); return simple_read_from_buffer(buf, len, ppos, file->private_data, size); diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 44ce5c6a541..d45ba456812 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -275,8 +275,14 @@ out: static int ecryptfs_flush(struct file *file, fl_owner_t td) { - return file->f_mode & FMODE_WRITE - ? filemap_write_and_wait(file->f_mapping) : 0; + struct file *lower_file = ecryptfs_file_to_lower(file); + + if (lower_file->f_op && lower_file->f_op->flush) { + filemap_write_and_wait(file->f_mapping); + return lower_file->f_op->flush(lower_file, td); + } + + return 0; } static int ecryptfs_release(struct inode *inode, struct file *file) diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 534b129ea67..cc7709e7c50 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -619,6 +619,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct dentry *lower_old_dir_dentry; struct dentry *lower_new_dir_dentry; struct dentry *trap = NULL; + struct inode *target_inode; lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry); lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry); @@ -626,6 +627,7 @@ 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); + target_inode = new_dentry->d_inode; trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); /* source should not be ancestor of target */ if (trap == lower_old_dentry) { @@ -641,6 +643,9 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, lower_new_dir_dentry->d_inode, lower_new_dentry); if (rc) goto out_lock; + if (target_inode) + fsstack_copy_attr_all(target_inode, + ecryptfs_inode_to_lower(target_inode)); fsstack_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode); if (new_dir != old_dir) fsstack_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode); |