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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

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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
This commit is contained in:
Linus Torvalds 2013-11-16 11:57:05 -08:00
commit ffd3c0260a
2 changed files with 11 additions and 11 deletions
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5
fs/btrfs/ctree.h
View File

@ -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) &&

17
fs/btrfs/ioctl.c
View File

@ -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;