[patch 1/5] fs: make use of rcu helpers

[npiggin@suse.de]

[-- Attachment #1: fs-bdiwb-rcu-fix.patch --]
[-- Type: text/plain, Size: 670 bytes --]

list_add_tail_rcu contains required barriers.

Signed-off-by: Nick Piggin <npiggin@suse.de>
---
 fs/fs-writeback.c |    5 -----
 1 file changed, 5 deletions(-)

Index: linux-2.6/fs/fs-writeback.c
===================================================================
--- linux-2.6.orig/fs/fs-writeback.c
+++ linux-2.6/fs/fs-writeback.c
@@ -152,11 +152,6 @@ static void bdi_queue_work(struct backin
 		atomic_set(&work->pending, bdi->wb_cnt);
 		BUG_ON(!bdi->wb_cnt);
 
-		/*
-		 * Make sure stores are seen before it appears on the list
-		 */
-		smp_mb();
-
 		spin_lock(&bdi->wb_lock);
 		list_add_tail_rcu(&work->list, &bdi->work_list);
 		spin_unlock(&bdi->wb_lock);