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

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Date:	Sun, 21 Oct 2012 09:25:29 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Ben Hutchings <ben@...adent.org.uk>
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 Sat, Oct 20, 2012 at 12:16:04AM +0100, Ben Hutchings wrote:
> 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.

Odd, it doesn't break the build.  And for some reason I just missed
this, does it hurt to have it applied?

greg k-h
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