[PATCH 4.9 21/31] fuse: annotate lock in fuse_reverse_inval_entry()

From: Miklos Szeredi mszeredi@redhat.com

commit bda9a71980e083699a0360963c0135657b73f47a upstream.

Add missing inode lock annotatation; found by syzbot.

Reported-and-tested-by: syzbot+9f747458f5990eaa8d43@syzkaller.appspotmail.com Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/fuse/dir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -973,7 +973,7 @@ int fuse_reverse_inval_entry(struct supe if (!parent) return -ENOENT;

- inode_lock(parent); + inode_lock_nested(parent, I_MUTEX_PARENT); if (!S_ISDIR(parent->i_mode)) goto unlock;