linux-kernel - Re: [PATCH mmotm] vfs: optimize touch

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Message-ID: <4A9BFD2C.90302@linux.intel.com>
Date:	Mon, 31 Aug 2009 18:41:16 +0200
From:	Andi Kleen <ak@...ux.intel.com>
To:	Hugh Dickins <hugh.dickins@...cali.co.uk>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Hansen <haveblue@...ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	Valerie Aurora <vaurora@...hat.com>,
	Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH mmotm] vfs: optimize touch_time too fix

Hugh Dickins wrote:
> Recent mmotms give me WARNING: at fs/namespace.c:612 mntput_no_expire()+...
> when unmounting: __mntput()'s WARN_ON(count_mnt_writers(mnt)).

Oops. Strange I ran my system quite some time with the patches
and didn't see these warnings.

Thanks Hugh.

-Andi

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