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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-16 23:57:05 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-16 23:57:05 +0400 |
| commit | ffd3c0260aeeb1fd4d36378d2e06e6410661dd0f (patch) | |
| tree | b9503b99442b9701fab49a83295e60256827cdd2 /fs/btrfs | |
| parent | 0891ad829d2a0501053703df66029e843e3b8365 (diff) | |
| parent | 54563d41a58be77e9bd9ef7af1ea4026cf0e7e07 (diff) | |
| download | linux-ffd3c0260aeeb1fd4d36378d2e06e6410661dd0f.tar.xz | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"This pull fixes the empty_zero_page bug that Heiko reported, and
includes one more cleanup from Al Viro"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: get rid of fdentry()
btrfs: fix empty_zero_page misusage
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.h | 5 | ||||
| -rw-r--r-- | fs/btrfs/ioctl.c | 17 |
2 files changed, 11 insertions, 11 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index aea4433081dc..f9aeb2759a64 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3111,11 +3111,6 @@ static inline u32 btrfs_level_size(struct btrfs_root *root, int level) ((unsigned long)(btrfs_leaf_data(leaf) + \ btrfs_item_offset_nr(leaf, slot))) -static inline struct dentry *fdentry(struct file *file) -{ - return file->f_path.dentry; -} - static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info) { return ((space_info->flags & BTRFS_BLOCK_GROUP_METADATA) && diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 1d04b5559e61..a111622598b0 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -320,7 +320,7 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg) static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) { - struct btrfs_fs_info *fs_info = btrfs_sb(fdentry(file)->d_sb); + struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb); struct btrfs_device *device; struct request_queue *q; struct fstrim_range range; @@ -368,8 +368,13 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) int btrfs_is_empty_uuid(u8 *uuid) { - BUILD_BUG_ON(BTRFS_UUID_SIZE > PAGE_SIZE); - return !memcmp(uuid, empty_zero_page, BTRFS_UUID_SIZE); + int i; + + for (i = 0; i < BTRFS_UUID_SIZE; i++) { + if (uuid[i]) + return 0; + } + return 1; } static noinline int create_subvol(struct inode *dir, @@ -2084,7 +2089,7 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file, static noinline int btrfs_ioctl_snap_destroy(struct file *file, void __user *arg) { - struct dentry *parent = fdentry(file); + struct dentry *parent = file->f_path.dentry; struct dentry *dentry; struct inode *dir = parent->d_inode; struct inode *inode; @@ -3100,7 +3105,7 @@ out: static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, u64 off, u64 olen, u64 destoff) { - struct inode *inode = fdentry(file)->d_inode; + struct inode *inode = file_inode(file); struct btrfs_root *root = BTRFS_I(inode)->root; struct fd src_file; struct inode *src; @@ -4299,7 +4304,7 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg) static long btrfs_ioctl_quota_rescan_wait(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root; + struct btrfs_root *root = BTRFS_I(file_inode(file))->root; if (!capable(CAP_SYS_ADMIN)) return -EPERM; |