linux-kernel - Re: [PATCH] block: mq flush: fix race between IPI handler and mq flush worker

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Message-ID: <5384E4D4.6040101@kernel.dk>
Date:	Tue, 27 May 2014 13:17:40 -0600
From:	Jens Axboe <axboe@...nel.dk>
To:	Christoph Hellwig <hch@....de>
CC:	Ming Lei <tom.leiming@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH] block: mq flush: fix race between IPI handler and mq
 flush worker

On 05/27/2014 01:15 PM, Christoph Hellwig wrote:
> On Tue, May 27, 2014 at 12:54:22PM -0600, Jens Axboe wrote:
>> Space is plenty big again now... The down side is that the splice trick 
>> wont work, but if we have more than a few requests on the requeue list, 
>> we're doing it wrong anyway.
> 
> I don't see a problem with the splice.  How about this version (untested so
> far)?

True, I guess it's iterated afterwards anyway, so that's where you just
check it.

But I think you sent the old one again, not the new variant :-)

-- 
Jens Axboe

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