From patchwork Thu Nov 15 05:47:51 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3.5.yuz, extended, stable] Patch "block: fix request_queue->flags initialization" has been added to staging queue Date: Wed, 14 Nov 2012 19:47:51 -0000 From: Herton Ronaldo Krzesinski X-Patchwork-Id: 199143 Message-Id: <1352958471-15297-1-git-send-email-herton.krzesinski@canonical.com> To: Tejun Heo Cc: Jens Axboe , kernel-team@lists.ubuntu.com, Vivek Goyal This is a note to let you know that I have just added a patch titled block: fix request_queue->flags initialization to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.yuz tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ >From 402f4fdecbb296a7b77ba2dfefeb38fccbfb9779 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 20 Sep 2012 14:09:30 -0700 Subject: [PATCH] block: fix request_queue->flags initialization commit 60ea8226cbd5c8301f9a39edc574ddabcb8150e0 upstream. 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 Acked-by: Vivek Goyal Signed-off-by: Jens Axboe Signed-off-by: Herton Ronaldo Krzesinski --- block/blk-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.7.9.5 diff --git a/block/blk-core.c b/block/blk-core.c index 96335a7..e17ce4b 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -686,7 +686,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn, 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)