linux-kernel - Re: [patch 1/4] fs: cleanup files

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Message-ID: <87mxvax3on.fsf@basil.nowhere.org>
Date:	Fri, 04 Jun 2010 16:39:20 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Al Viro <viro@...IV.linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Frank Mayhar <fmayhar@...gle.com>,
	John Stultz <johnstul@...ibm.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: Re: [patch 1/4] fs: cleanup files_lock

Nick Piggin <npiggin@...e.de> writes:
>
> Again, this would be nice, but I didn't see an easy way to do it.
> Even if refcounting obsoleted may_remount_ro, we still have
> mark_files_ro. It's no more complex to rip this all out after my
> patch. I don't see the problem in doing this patch. It has good
> numbers.

Yes agreed. The global lock is currently really painful on workloads
that do a lot of opens and anything to make this better would be good asap.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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