From f817d08cafb6c403f7b4e627cfef0e9636d5fac2 Mon Sep 17 00:00:00 2001 From: Erez Zadok Date: Fri, 15 Feb 2008 17:18:48 -0500 Subject: [PATCH] Unionfs: follow_link locking fixes Signed-off-by: Erez Zadok --- fs/unionfs/inode.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/unionfs/inode.c b/fs/unionfs/inode.c index 8d939dc1f45..63775333ec1 100644 --- a/fs/unionfs/inode.c +++ b/fs/unionfs/inode.c @@ -820,7 +820,11 @@ static void *unionfs_follow_link(struct dentry *dentry, struct nameidata *nd) err = 0; out: - unionfs_check_dentry(dentry); + if (!err) { + unionfs_lock_dentry(dentry, UNIONFS_DMUTEX_CHILD); + unionfs_check_dentry(dentry); + unionfs_unlock_dentry(dentry); + } unionfs_check_nd(nd); return ERR_PTR(err); } -- 2.43.0