linux-kernel - Re: [PATCH] remove sb->s_files and file_list

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Date:	Thu, 8 Feb 2007 23:23:12 -0800
From:	Bill Huey (hui) <billh@...ppy.monkey.org>
To:	Christoph Hellwig <hch@....de>
Cc:	jack@...e.cz, akpm@...l.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peter@...gramming.kicks-ass.net>,
	"Bill Huey (hui)" <billh@...ppy.monkey.org>
Subject: Re: [PATCH] remove sb->s_files and file_list_lock usage in dquot.c

On Thu, Feb 08, 2007 at 11:14:04PM -0800, Bill Huey wrote:
> I have an adaptive lock implementation in my tree that eliminates
> the contention between what looks like the IDE layer, work queues and
> the anticipatory scheduler, but that's not a real problem unlike what
> I've mentioned above. I can get you and others more specifics on the
> problem if folks working on the lower layers want it.

Correction, it eliminates all of the "live" contentions where the
mutex owner isn't asleep already.

bill

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