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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-28 00:26:28 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-28 00:26:28 +0400
commit33c0022f0e687b0161a9bb84a5671df932551e3a (patch)
treeaf5a871d8685c0baca9c4b8fcf31cb9f5454374a /fs/btrfs/super.c
parent2b9d1c050d291693f257c98605028325f8146c84 (diff)
parentcfd4a535b68faf651b238586011f5bae128391c4 (diff)
downloadlinux-33c0022f0e687b0161a9bb84a5671df932551e3a.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. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: limit the path size in send to PATH_MAX Btrfs: correctly set profile flags on seqlock retry Btrfs: use correct key when repeating search for extent item Btrfs: fix inode caching vs tree log Btrfs: fix possible memory leaks in open_ctree() Btrfs: avoid triggering bug_on() when we fail to start inode caching task Btrfs: move btrfs_{set,clear}_and_info() to ctree.h btrfs: replace error code from btrfs_drop_extents btrfs: Change the hole range to a more accurate value. btrfs: fix use-after-free in mount_subvol()
Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r--fs/btrfs/super.c22
1 files changed, 6 insertions, 16 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 5011aadacab8..9601d25a4607 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -385,20 +385,6 @@ static match_table_t tokens = {
{Opt_err, NULL},
};
-#define btrfs_set_and_info(root, opt, fmt, args...) \
-{ \
- if (!btrfs_test_opt(root, opt)) \
- btrfs_info(root->fs_info, fmt, ##args); \
- btrfs_set_opt(root->fs_info->mount_opt, opt); \
-}
-
-#define btrfs_clear_and_info(root, opt, fmt, args...) \
-{ \
- if (btrfs_test_opt(root, opt)) \
- btrfs_info(root->fs_info, fmt, ##args); \
- btrfs_clear_opt(root->fs_info->mount_opt, opt); \
-}
-
/*
* Regular mount options parser. Everything that is needed only when
* reading in a new superblock is parsed here.
@@ -1186,7 +1172,6 @@ static struct dentry *mount_subvol(const char *subvol_name, int flags,
return ERR_PTR(-ENOMEM);
mnt = vfs_kern_mount(&btrfs_fs_type, flags, device_name,
newargs);
- kfree(newargs);
if (PTR_RET(mnt) == -EBUSY) {
if (flags & MS_RDONLY) {
@@ -1196,17 +1181,22 @@ static struct dentry *mount_subvol(const char *subvol_name, int flags,
int r;
mnt = vfs_kern_mount(&btrfs_fs_type, flags | MS_RDONLY, device_name,
newargs);
- if (IS_ERR(mnt))
+ if (IS_ERR(mnt)) {
+ kfree(newargs);
return ERR_CAST(mnt);
+ }
r = btrfs_remount(mnt->mnt_sb, &flags, NULL);
if (r < 0) {
/* FIXME: release vfsmount mnt ??*/
+ kfree(newargs);
return ERR_PTR(r);
}
}
}
+ kfree(newargs);
+
if (IS_ERR(mnt))
return ERR_CAST(mnt);