linux-kernel - Re: block: eliminate ELEVATOR_INSERT

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Wed, 30 Mar 2011 20:12:08 +0200
From:	Jens Axboe <axboe@...nel.dk>
To:	Jeff Moyer <jmoyer@...hat.com>
CC:	Tejun Heo <tj@...nel.org>, Vivek Goyal <vgoyal@...hat.com>,
	Mike Snitzer <snitzer@...hat.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	linux-kernel@...r.kernel.org, Chris Mason <chris.mason@...cle.com>,
	hch@...radead.org
Subject: Re: block: eliminate ELEVATOR_INSERT_REQUEUE

On 2011-03-30 19:56, Jeff Moyer wrote:
> Jens Axboe <axboe@...nel.dk> writes:
> 
>> On 2011-03-30 17:30, Tejun Heo wrote:
>>> On Wed, Mar 30, 2011 at 11:22:48AM -0400, Vivek Goyal wrote:
>>>> So wee need this as stable fix because FLUSH request can get ahead of
>>>> REQUEUED requests and it can break some drivers?
>>>
>>> Yes, I think so.  All we need is just replacing elv_insert() calls in
>>> blk-flush.c with list_add_tail().  Something like the following.  I'll
>>> test it and send a proper patch later.  Thanks.
>>
>> I'd suggest I just mark the queued patch for stable.
> 
> Could you document the nuance in that patch, please?

Yeah I will. I rebase for-linus, it's not a "stable" branch as such.
Today I mainly collected some items as not to drop them, I'll expand on
the explanations in there.

-- 
Jens Axboe

--
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/