linux-kernel - Re: [PATCH 3/3] enhanced NFS ESTALE error handling (v2)

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Message-ID: <47A38F33.9050505@redhat.com>
Date:	Fri, 01 Feb 2008 16:29:23 -0500
From:	Peter Staubach <staubach@...hat.com>
To:	Trond Myklebust <trond.myklebust@....uio.no>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-nfs@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 3/3] enhanced NFS ESTALE error handling (v2)

Trond Myklebust wrote:
> On Fri, 2008-02-01 at 15:58 -0500, Peter Staubach wrote:
>   
>> Hi.
>>
>> The patch enhanced the ESTALE error handling for NFS mounted
>> file systems.  It expands the number of places that the NFS
>> client checks for ESTALE returns from the server.
>>
>> It also enhances the ESTALE handling for directories by
>> occasionally retrying revalidation to check to see whether the
>> directory becomes valid again.  This sounds odd, but can occur
>> when a systems administrator, accidently or unknowingly,
>> unexports a file system which is in use.  All active
>> non-directory files become permanently inaccessible, but
>> directories can be become accessible again after the
>> administrator re-exports the file system.  This is a situation
>> that users have been complaining about for years and this
>> support can help to alleviate their situations.
>>     
>
> As far as I can see, this patch can be applied separately from the VFS
> fixes. If so, would it make sense for me to take charge of this patch in
> the NFS tree, while Andrew queues up the other two VFS changes in -mm?

Yes, I think that this would make good sense.

    Thanx...

       ps

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