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authorVladimir Davydov <vdavydov@parallels.com>2014-01-22 03:48:45 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-22 04:19:42 +0400
commitb5bd856a0c2a6331ee3300fb589aeea56eba110b (patch)
tree3dff9573fc8fdc07b1961dc7412f7ceea7d17c1b /fs/super.c
parent4e4f9e66a75921aa260c2f5bf626bdea54e51ba2 (diff)
downloadlinux-b5bd856a0c2a6331ee3300fb589aeea56eba110b.tar.xz
fs/super.c: fix WARN on alloc_super() fail path
On fail path alloc_super() calls destroy_super(), which issues a warning if the sb's s_mounts list is not empty, in particular if it has not been initialized. That said s_mounts must be initialized in alloc_super() before any possible failure, but currently it is initialized close to the end of the function leading to a useless warning dumped to log if either percpu_counter_init() or list_lru_init() fails. Let's fix this. Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/super.c b/fs/super.c
index e5f6c2cfac38..cecd780e0f44 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -166,6 +166,8 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
if (!s)
return NULL;
+ INIT_LIST_HEAD(&s->s_mounts);
+
if (security_sb_alloc(s))
goto fail;
@@ -188,7 +190,6 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
if (list_lru_init(&s->s_inode_lru))
goto fail;
- INIT_LIST_HEAD(&s->s_mounts);
init_rwsem(&s->s_umount);
lockdep_set_class(&s->s_umount, &type->s_umount_key);
/*