linux-kernel - Re: mmap vs mtime in 2.6.26 and up

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Message-ID: <20090926131043.GA25204@infradead.org>
Date:	Sat, 26 Sep 2009 09:10:43 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Ferenc Wagner <wferi@...f.hu>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Ray Lee <ray-lk@...rabbit.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Staubach <staubach@...hat.com>,
	Miklos Szeredi <mszeredi@...e.cz>, xfs@....sgi.com,
	linux-kernel@...r.kernel.org
Subject: Re: mmap vs mtime in 2.6.26 and up

On Fri, Sep 25, 2009 at 02:47:42PM +0200, Ferenc Wagner wrote:
> I added some fresh test results to
> http://bugzilla.kernel.org/show_bug.cgi?id=2645.  In short, under
> 2.6.30-rc8 the test program reports full failure on XFS and RAMFS,
> full success on EXT3, VFAT and ReiserFS, and mixed results on TMPFS:

There's a patch queued up for inclusion in 2.6.32 to work around this
issue in XFS.  The lack of a proper callout from the VFS still makes
this a much less than ideal solution.

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