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Message-ID: <20120920210930.GD7264@google.com> Date: Thu, 20 Sep 2012 14:09:30 -0700 From: Tejun Heo <tj@...nel.org> To: Jens Axboe <axboe@...nel.dk> Cc: Joseph Glanville <joseph.glanville@...onvm.com.au>, cgroups <cgroups@...r.kernel.org>, Vivek Goyal <vgoyal@...hat.com>, linux-kernel@...r.kernel.org Subject: [PATCH 2/2] block: fix request_queue->flags initialization A queue newly allocated with blk_alloc_queue_node() has only QUEUE_FLAG_BYPASS set. For request-based drivers, blk_init_allocated_queue() is called and q->queue_flags is overwritten with QUEUE_FLAG_DEFAULT which doesn't include BYPASS even though the initial bypass is still in effect. In blk_init_allocated_queue(), or QUEUE_FLAG_DEFAULT to q->queue_flags instead of overwriting. Signed-off-by: Tejun Heo <tj@...nel.org> Cc: Vivek Goyal <vgoyal@...hat.com> Cc: stable@...r.kernel.org --- block/blk-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/block/blk-core.c +++ b/block/blk-core.c @@ -696,7 +696,7 @@ blk_init_allocated_queue(struct request_ q->request_fn = rfn; q->prep_rq_fn = NULL; q->unprep_rq_fn = NULL; - q->queue_flags = QUEUE_FLAG_DEFAULT; + q->queue_flags |= QUEUE_FLAG_DEFAULT; /* Override internal queue lock with supplied lock pointer */ if (lock) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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