linux-kernel - Re: [patch]block: fix ioc locking warning

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Message-ID: <1328592178.21268.78.camel@sli10-conroe>
Date:	Tue, 07 Feb 2012 13:22:58 +0800
From:	Shaohua Li <shaohua.li@...el.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Vivek Goyal <vgoyal@...hat.com>, Jens Axboe <axboe@...nel.dk>,
	lkml <linux-kernel@...r.kernel.org>,
	Knut Petersen <Knut_Petersen@...nline.de>, mroos@...ux.ee
Subject: Re: [patch]block: fix ioc locking warning

On Mon, 2012-02-06 at 16:59 -0800, Tejun Heo wrote:
> * Test with the this_q != locked_q trylock patch.
this one slightly reduces the regression. without it, the regression is
about 17%, with it, the regression is about 12%. Test result is stable.

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