linux-kernel - Re: [PATCH] make inotify event handles use GFP

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Message-Id: <1238448816.4073.265.camel@laptop>
Date:	Mon, 30 Mar 2009 23:33:36 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Eric Paris <eparis@...hat.com>, linux-kernel@...r.kernel.org,
	mingo@...e.hu, balbir@...ux.vnet.ibm.com,
	linux-fsdevel@...r.kernel.org, aviro@...hat.com
Subject: Re: [PATCH] make inotify event handles use GFP_NOFS

On Mon, 2009-03-30 at 14:26 -0700, Andrew Morton wrote:
> On Wed, 18 Mar 2009 14:27:32 -0400
> Eric Paris <eparis@...hat.com> wrote:
> 
> > I think this is a bandaide to shut up lockdep.  I could either figure
> > out lockdep classes and figure out how to reclassify inotify locks since
> > I believe Nick is correct when he says inotify watches pin the inode in
> > core so memory pressure can't evict it.
> 
> It's pretty sad to degrading the strength of the memory allocation just
> to squish a lockdep report.

Yeah, I agree, its the wrong thing to do. lockdep annotations really
aren't that hard -- also, you could also talk me through it.

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