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From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 1/5] xfs: remove dead ENODEV handling in xfs_destroy_ioend
Date: Mon, 22 Aug 2011 16:32:45 +1000	[thread overview]
Message-ID: <20110822063245.GK3162@dastard> (raw)
In-Reply-To: <20110814222517.607954695@bombadil.infradead.org>

On Sun, Aug 14, 2011 at 06:24:13PM -0400, Christoph Hellwig wrote:
> No driver returns ENODEV from it bio completion handler, not has this
> ever been documented.  Remove the dead code dealing with it.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

IIRC, this was added years ago for XVM to cause filesystems to shut
down when the storage went away (e.g. someone tripped over a cable
bundle or fenced the machine).  It would be nice if there was some
standard way of handling this rather than having the filesytem
continue to allow applications to dirty memory when there is no
chance of ever cleaning it....

As it is, I see no point in keeping something that won't ever be
used, so

Reviewed-by: Dave Chinner <dchinner@redhat.com>

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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  reply	other threads:[~2011-08-22  6:32 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-14 22:24 [PATCH 0/5] simply and speedup I/O completion handling Christoph Hellwig
2011-08-14 22:24 ` [PATCH 1/5] xfs: remove dead ENODEV handling in xfs_destroy_ioend Christoph Hellwig
2011-08-22  6:32   ` Dave Chinner [this message]
2011-08-22 14:27     ` Christoph Hellwig
2011-08-14 22:24 ` [PATCH 2/5] xfs: defer AIO/DIO completions Christoph Hellwig
2011-08-22  6:40   ` Dave Chinner
2011-08-22 14:28     ` Christoph Hellwig
2011-08-14 22:24 ` [PATCH 3/5] xfs: reduce ioend latency Christoph Hellwig
2011-08-22  6:43   ` Dave Chinner
2011-08-22 14:29     ` Christoph Hellwig
2011-08-14 22:24 ` [PATCH 4/5] xfs: wait for I/O completion when writing out pages in xfs_setattr_size Christoph Hellwig
2011-08-22  6:44   ` Dave Chinner
2011-08-14 22:24 ` [PATCH 5/5] xfs: remove i_iocount Christoph Hellwig
2011-08-22  6:46   ` Dave Chinner

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