linux-kernel - Re: [PATCH block/for-linus 1/2] block: separate out blk_rq_merge_ok() and blk_try

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]

Message-ID: <4F32303D.9090003@kernel.dk>
Date:	Wed, 08 Feb 2012 09:20:13 +0100
From:	Jens Axboe <axboe@...nel.dk>
To:	Tejun Heo <tj@...nel.org>
CC:	Shaohua Li <shaohua.li@...el.com>, Vivek Goyal <vgoyal@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH block/for-linus 1/2] block: separate out blk_rq_merge_ok()
 and blk_try_merge() from elevator functions

On 02/08/2012 12:01 AM, Tejun Heo wrote:
> blk_rq_merge_ok() is the elevator-neutral part of merge eligibility
> test.  blk_try_merge() determines merge direction and expects the
> caller to have tested elv_rq_merge_ok() previously.
> 
> elv_rq_merge_ok() now wraps blk_rq_merge_ok() and then calls
> elv_iosched_allow_merge().  elv_try_merge() is removed and the two
> callers are updated to call elv_rq_merge_ok() explicitly followed by
> blk_try_merge().  While at it, make rq_merge_ok() functions return
> bool.
> 
> This is to prepare for plug merge update and doesn't introduce any
> behavior change.
> 
> This is based on Jens' patch to skip elevator_allow_merge_fn() from
> plug merge.

Thanks for finishing it up and testing, I have applied both patches.

-- 
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/