linux-kernel - Re: [ 12/37] block: fix request

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Message-ID: <20121019231604.GF13292@decadent.org.uk>
Date:	Sat, 20 Oct 2012 00:16:04 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	alan@...rguk.ukuu.org.uk, Tejun Heo <tj@...nel.org>,
	Vivek Goyal <vgoyal@...hat.com>, Jens Axboe <axboe@...nel.dk>
Subject: Re: [ 12/37] block: fix request_queue->flags initialization

On Thu, Oct 18, 2012 at 08:16:35PM -0700, Greg Kroah-Hartman wrote:
> 3.0-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Tejun Heo <tj@...nel.org>
> 
> 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.
[...]

This is not needed, as there is no QUEUE_FLAG_BYPASS in 3.0.y.

Ben.

-- 
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
                                                              - Albert Camus
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