From 71d509280f7e92eb60ae6b7c78c20afafff060c7 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 20 Nov 2014 16:40:01 +0100 Subject: ovl: use lockless_dereference() for upperdentry Don't open code lockless_dereference() in ovl_upperdentry_dereference(). Signed-off-by: Miklos Szeredi --- fs/overlayfs/super.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index eee7a62e1c0e..f16d318b71f8 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -84,12 +84,7 @@ enum ovl_path_type ovl_path_type(struct dentry *dentry) static struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe) { - struct dentry *upperdentry = ACCESS_ONCE(oe->__upperdentry); - /* - * Make sure to order reads to upperdentry wrt ovl_dentry_update() - */ - smp_read_barrier_depends(); - return upperdentry; + return lockless_dereference(oe->__upperdentry); } void ovl_path_upper(struct dentry *dentry, struct path *path) -- cgit v1.2.3