diff options
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/acl.c | 189 | ||||
| -rw-r--r-- | fs/ext2/acl.h | 8 | ||||
| -rw-r--r-- | fs/ext2/file.c | 11 | ||||
| -rw-r--r-- | fs/ext2/ialloc.c | 2 | ||||
| -rw-r--r-- | fs/ext2/inode.c | 16 | ||||
| -rw-r--r-- | fs/ext2/namei.c | 2 | ||||
| -rw-r--r-- | fs/ext2/super.c | 4 | ||||
| -rw-r--r-- | fs/ext2/xattr.c | 8 | ||||
| -rw-r--r-- | fs/ext2/xattr.h | 2 | ||||
| -rw-r--r-- | fs/ext2/xattr_security.c | 4 | ||||
| -rw-r--r-- | fs/ext2/xip.c | 1 |
11 files changed, 43 insertions, 204 deletions
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c index 110b6b371a4..27695e6f4e4 100644 --- a/fs/ext2/acl.c +++ b/fs/ext2/acl.c @@ -4,7 +4,6 @@ * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de> */ -#include <linux/capability.h> #include <linux/init.h> #include <linux/sched.h> #include <linux/slab.h> @@ -148,13 +147,6 @@ ext2_get_acl(struct inode *inode, int type) struct posix_acl *acl; int retval; - if (!test_opt(inode->i_sb, POSIX_ACL)) - return NULL; - - acl = get_cached_acl(inode, type); - if (acl != ACL_NOT_CACHED) - return acl; - switch (type) { case ACL_TYPE_ACCESS: name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS; @@ -189,19 +181,14 @@ ext2_get_acl(struct inode *inode, int type) /* * inode->i_mutex: down */ -static int -ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl) +int +ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type) { int name_index; void *value = NULL; size_t size = 0; int error; - if (S_ISLNK(inode->i_mode)) - return -EOPNOTSUPP; - if (!test_opt(inode->i_sb, POSIX_ACL)) - return 0; - switch(type) { case ACL_TYPE_ACCESS: name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS; @@ -250,169 +237,21 @@ ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl) int ext2_init_acl(struct inode *inode, struct inode *dir) { - struct posix_acl *acl = NULL; - int error = 0; - - if (!S_ISLNK(inode->i_mode)) { - if (test_opt(dir->i_sb, POSIX_ACL)) { - acl = ext2_get_acl(dir, ACL_TYPE_DEFAULT); - if (IS_ERR(acl)) - return PTR_ERR(acl); - } - if (!acl) - inode->i_mode &= ~current_umask(); - } - if (test_opt(inode->i_sb, POSIX_ACL) && acl) { - if (S_ISDIR(inode->i_mode)) { - error = ext2_set_acl(inode, ACL_TYPE_DEFAULT, acl); - if (error) - goto cleanup; - } - error = posix_acl_create(&acl, GFP_KERNEL, &inode->i_mode); - if (error < 0) - return error; - if (error > 0) { - /* This is an extended ACL */ - error = ext2_set_acl(inode, ACL_TYPE_ACCESS, acl); - } - } -cleanup: - posix_acl_release(acl); - return error; -} - -/* - * Does chmod for an inode that may have an Access Control List. The - * inode->i_mode field must be updated to the desired value by the caller - * before calling this function. - * Returns 0 on success, or a negative error number. - * - * We change the ACL rather than storing some ACL entries in the file - * mode permission bits (which would be more efficient), because that - * would break once additional permissions (like ACL_APPEND, ACL_DELETE - * for directories) are added. There are no more bits available in the - * file mode. - * - * inode->i_mutex: down - */ -int -ext2_acl_chmod(struct inode *inode) -{ - struct posix_acl *acl; - int error; + struct posix_acl *default_acl, *acl; + int error; - if (!test_opt(inode->i_sb, POSIX_ACL)) - return 0; - if (S_ISLNK(inode->i_mode)) - return -EOPNOTSUPP; - acl = ext2_get_acl(inode, ACL_TYPE_ACCESS); - if (IS_ERR(acl) || !acl) - return PTR_ERR(acl); - error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode); + error = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl); if (error) return error; - error = ext2_set_acl(inode, ACL_TYPE_ACCESS, acl); - posix_acl_release(acl); - return error; -} -/* - * Extended attribut handlers - */ -static size_t -ext2_xattr_list_acl_access(struct dentry *dentry, char *list, size_t list_size, - const char *name, size_t name_len, int type) -{ - const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS); - - if (!test_opt(dentry->d_sb, POSIX_ACL)) - return 0; - if (list && size <= list_size) - memcpy(list, POSIX_ACL_XATTR_ACCESS, size); - return size; -} - -static size_t -ext2_xattr_list_acl_default(struct dentry *dentry, char *list, size_t list_size, - const char *name, size_t name_len, int type) -{ - const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT); - - if (!test_opt(dentry->d_sb, POSIX_ACL)) - return 0; - if (list && size <= list_size) - memcpy(list, POSIX_ACL_XATTR_DEFAULT, size); - return size; -} - -static int -ext2_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer, - size_t size, int type) -{ - struct posix_acl *acl; - int error; - - if (strcmp(name, "") != 0) - return -EINVAL; - if (!test_opt(dentry->d_sb, POSIX_ACL)) - return -EOPNOTSUPP; - - acl = ext2_get_acl(dentry->d_inode, type); - if (IS_ERR(acl)) - return PTR_ERR(acl); - if (acl == NULL) - return -ENODATA; - error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); - posix_acl_release(acl); - - return error; -} - -static int -ext2_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, - size_t size, int flags, int type) -{ - struct posix_acl *acl; - int error; - - if (strcmp(name, "") != 0) - return -EINVAL; - if (!test_opt(dentry->d_sb, POSIX_ACL)) - return -EOPNOTSUPP; - if (!inode_owner_or_capable(dentry->d_inode)) - return -EPERM; - - if (value) { - acl = posix_acl_from_xattr(&init_user_ns, value, size); - if (IS_ERR(acl)) - return PTR_ERR(acl); - else if (acl) { - error = posix_acl_valid(acl); - if (error) - goto release_and_out; - } - } else - acl = NULL; - - error = ext2_set_acl(dentry->d_inode, type, acl); - -release_and_out: - posix_acl_release(acl); + if (default_acl) { + error = ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT); + posix_acl_release(default_acl); + } + if (acl) { + if (!error) + error = ext2_set_acl(inode, acl, ACL_TYPE_ACCESS); + posix_acl_release(acl); + } return error; } - -const struct xattr_handler ext2_xattr_acl_access_handler = { - .prefix = POSIX_ACL_XATTR_ACCESS, - .flags = ACL_TYPE_ACCESS, - .list = ext2_xattr_list_acl_access, - .get = ext2_xattr_get_acl, - .set = ext2_xattr_set_acl, -}; - -const struct xattr_handler ext2_xattr_acl_default_handler = { - .prefix = POSIX_ACL_XATTR_DEFAULT, - .flags = ACL_TYPE_DEFAULT, - .list = ext2_xattr_list_acl_default, - .get = ext2_xattr_get_acl, - .set = ext2_xattr_set_acl, -}; diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h index 503bfb0ed79..44937f9fcf3 100644 --- a/fs/ext2/acl.h +++ b/fs/ext2/acl.h @@ -55,7 +55,7 @@ static inline int ext2_acl_count(size_t size) /* acl.c */ extern struct posix_acl *ext2_get_acl(struct inode *inode, int type); -extern int ext2_acl_chmod (struct inode *); +extern int ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type); extern int ext2_init_acl (struct inode *, struct inode *); #else @@ -63,12 +63,6 @@ extern int ext2_init_acl (struct inode *, struct inode *); #define ext2_get_acl NULL #define ext2_set_acl NULL -static inline int -ext2_acl_chmod (struct inode *inode) -{ - return 0; -} - static inline int ext2_init_acl (struct inode *inode, struct inode *dir) { return 0; diff --git a/fs/ext2/file.c b/fs/ext2/file.c index a5b3a5db312..7c87b22a722 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -62,10 +62,10 @@ int ext2_fsync(struct file *file, loff_t start, loff_t end, int datasync) */ const struct file_operations ext2_file_operations = { .llseek = generic_file_llseek, - .read = do_sync_read, - .write = do_sync_write, - .aio_read = generic_file_aio_read, - .aio_write = generic_file_aio_write, + .read = new_sync_read, + .write = new_sync_write, + .read_iter = generic_file_read_iter, + .write_iter = generic_file_write_iter, .unlocked_ioctl = ext2_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ext2_compat_ioctl, @@ -75,7 +75,7 @@ const struct file_operations ext2_file_operations = { .release = ext2_release_file, .fsync = ext2_fsync, .splice_read = generic_file_splice_read, - .splice_write = generic_file_splice_write, + .splice_write = iter_file_splice_write, }; #ifdef CONFIG_EXT2_FS_XIP @@ -103,5 +103,6 @@ const struct inode_operations ext2_file_inode_operations = { #endif .setattr = ext2_setattr, .get_acl = ext2_get_acl, + .set_acl = ext2_set_acl, .fiemap = ext2_fiemap, }; diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index 7cadd823bb3..7d66fb0e4cc 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -284,7 +284,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent) int best_ndir = inodes_per_group; int best_group = -1; - get_random_bytes(&group, sizeof(group)); + group = prandom_u32(); parent_group = (unsigned)group % ngroups; for (i = 0; i < ngroups; i++) { group = (parent_group + i) % ngroups; diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index c260de6d7b6..36d35c36311 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -78,7 +78,7 @@ void ext2_evict_inode(struct inode * inode) dquot_drop(inode); } - truncate_inode_pages(&inode->i_data, 0); + truncate_inode_pages_final(&inode->i_data); if (want_delete) { sb_start_intwrite(inode->i_sb); @@ -632,6 +632,8 @@ static int ext2_get_blocks(struct inode *inode, int count = 0; ext2_fsblk_t first_block = 0; + BUG_ON(maxblocks == 0); + depth = ext2_block_to_path(inode,iblock,offsets,&blocks_to_boundary); if (depth == 0) @@ -848,18 +850,18 @@ static sector_t ext2_bmap(struct address_space *mapping, sector_t block) } static ssize_t -ext2_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, - loff_t offset, unsigned long nr_segs) +ext2_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, + loff_t offset) { struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; + size_t count = iov_iter_count(iter); ssize_t ret; - ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs, - ext2_get_block); + ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, ext2_get_block); if (ret < 0 && (rw & WRITE)) - ext2_write_failed(mapping, offset + iov_length(iov, nr_segs)); + ext2_write_failed(mapping, offset + count); return ret; } @@ -1564,7 +1566,7 @@ int ext2_setattr(struct dentry *dentry, struct iattr *iattr) } setattr_copy(inode, iattr); if (iattr->ia_valid & ATTR_MODE) - error = ext2_acl_chmod(inode); + error = posix_acl_chmod(inode, inode->i_mode); mark_inode_dirty(inode); return error; diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c index 256dd5f4c1c..c268d0af1db 100644 --- a/fs/ext2/namei.c +++ b/fs/ext2/namei.c @@ -421,6 +421,7 @@ const struct inode_operations ext2_dir_inode_operations = { #endif .setattr = ext2_setattr, .get_acl = ext2_get_acl, + .set_acl = ext2_set_acl, .tmpfile = ext2_tmpfile, }; @@ -433,4 +434,5 @@ const struct inode_operations ext2_special_inode_operations = { #endif .setattr = ext2_setattr, .get_acl = ext2_get_acl, + .set_acl = ext2_set_acl, }; diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 288534920fe..3750031cfa2 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -192,7 +192,7 @@ static void init_once(void *foo) inode_init_once(&ei->vfs_inode); } -static int init_inodecache(void) +static int __init init_inodecache(void) { ext2_inode_cachep = kmem_cache_create("ext2_inode_cache", sizeof(struct ext2_inode_info), @@ -1254,6 +1254,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data) unsigned long old_sb_flags; int err; + sync_filesystem(sb); spin_lock(&sbi->s_lock); /* Store the old options */ @@ -1493,6 +1494,7 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type, sb->s_blocksize - offset : towrite; tmp_bh.b_state = 0; + tmp_bh.b_size = sb->s_blocksize; err = ext2_get_block(inode, blk, &tmp_bh, 1); if (err < 0) goto out; diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index 2d7557db3ae..91426141c33 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c @@ -103,8 +103,8 @@ static struct mb_cache *ext2_xattr_cache; static const struct xattr_handler *ext2_xattr_handler_map[] = { [EXT2_XATTR_INDEX_USER] = &ext2_xattr_user_handler, #ifdef CONFIG_EXT2_FS_POSIX_ACL - [EXT2_XATTR_INDEX_POSIX_ACL_ACCESS] = &ext2_xattr_acl_access_handler, - [EXT2_XATTR_INDEX_POSIX_ACL_DEFAULT] = &ext2_xattr_acl_default_handler, + [EXT2_XATTR_INDEX_POSIX_ACL_ACCESS] = &posix_acl_access_xattr_handler, + [EXT2_XATTR_INDEX_POSIX_ACL_DEFAULT] = &posix_acl_default_xattr_handler, #endif [EXT2_XATTR_INDEX_TRUSTED] = &ext2_xattr_trusted_handler, #ifdef CONFIG_EXT2_FS_SECURITY @@ -116,8 +116,8 @@ const struct xattr_handler *ext2_xattr_handlers[] = { &ext2_xattr_user_handler, &ext2_xattr_trusted_handler, #ifdef CONFIG_EXT2_FS_POSIX_ACL - &ext2_xattr_acl_access_handler, - &ext2_xattr_acl_default_handler, + &posix_acl_access_xattr_handler, + &posix_acl_default_xattr_handler, #endif #ifdef CONFIG_EXT2_FS_SECURITY &ext2_xattr_security_handler, diff --git a/fs/ext2/xattr.h b/fs/ext2/xattr.h index 5e41cccff76..60edf298644 100644 --- a/fs/ext2/xattr.h +++ b/fs/ext2/xattr.h @@ -57,8 +57,6 @@ struct ext2_xattr_entry { extern const struct xattr_handler ext2_xattr_user_handler; extern const struct xattr_handler ext2_xattr_trusted_handler; -extern const struct xattr_handler ext2_xattr_acl_access_handler; -extern const struct xattr_handler ext2_xattr_acl_default_handler; extern const struct xattr_handler ext2_xattr_security_handler; extern ssize_t ext2_listxattr(struct dentry *, char *, size_t); diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c index cfedb2cb0d8..c0ebc4db884 100644 --- a/fs/ext2/xattr_security.c +++ b/fs/ext2/xattr_security.c @@ -42,8 +42,8 @@ ext2_xattr_security_set(struct dentry *dentry, const char *name, value, size, flags); } -int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array, - void *fs_info) +static int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array, + void *fs_info) { const struct xattr *xattr; int err = 0; diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c index 1c3312858fc..e98171a11cf 100644 --- a/fs/ext2/xip.c +++ b/fs/ext2/xip.c @@ -35,6 +35,7 @@ __ext2_get_block(struct inode *inode, pgoff_t pgoff, int create, int rc; memset(&tmp, 0, sizeof(struct buffer_head)); + tmp.b_size = 1 << inode->i_blkbits; rc = ext2_get_block(inode, pgoff, &tmp, create); *result = tmp.b_blocknr; |