Messages in this thread Patch in this message | | | Date | Wed, 16 Sep 2009 05:19:04 +1000 | From | npiggin@suse ... | Subject | [patch 1/5] fs: make use of rcu helpers |
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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);
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