linux-kernel - Re: AIM7 40% regression with 2.6.26-rc1

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Message-ID: <20080506164459.GG592@fieldses.org>
Date:	Tue, 6 May 2008 12:44:59 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Matthew Wilcox <matthew@....cx>, Ingo Molnar <mingo@...e.hu>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, richterd@...i.umich.edu
Subject: Re: AIM7 40% regression with 2.6.26-rc1

On Tue, May 06, 2008 at 09:36:06AM -0700, Linus Torvalds wrote:
> 
> 
> On Tue, 6 May 2008, Matthew Wilcox wrote:
> > 
> > I've wanted to fix file locks for a while.  Here's a first attempt.
> > It was done quickly, so I concede that it may well have bugs in it.
> > I found (and fixed) one with LTP.
> 
> Hmm. Wouldn't it be nicer to make the lock be a per-inode thing? Or is 
> there some user that doesn't have the inode info, or does anything that 
> might cross inode boundaries?

The deadlock detection crosses inode boundaries.

--b.
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