From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [RFC] Delayed logging
Date: Tue, 16 Mar 2010 12:06:36 +1100 [thread overview]
Message-ID: <20100316010636.GA12369@dastard> (raw)
In-Reply-To: <20100315163324.GA26379@infradead.org>
On Mon, Mar 15, 2010 at 12:33:24PM -0400, Christoph Hellwig wrote:
> On Mon, Mar 15, 2010 at 12:01:54PM -0400, Christoph Hellwig wrote:
> > Running the series on my KVM testbox trips out this assert in
> > xfstests 013, which suggests we might be calling iput one too
> > much somewhere (e.g. IOP_UNLOCK)):
> >
> > [ 132.174780] Assertion failed: atomic_read(&VFS_I(dp)->i_count) > 0, file: fs/xfs/xfs_vnodeops.c, line: 1430
>
> Turns out this was due to the fsync clustering patch, which adds inodes
> to a transaction without first grabbing a reference to them.
> Unofrtunately grabbing the reference is not a easy as it sounds, as
> inodes in the cluster might be on the unused list or even not have
> valid VFS state anymore, so we can't simply call IHOLD here. I've
> reverted the patch in my local tree for now.
Yeah, that change was only half-baked - I was in two minds as to
whether to include it. I'll drop it from the series until I've had
more time to consider it.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2010-03-16 1:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-15 4:30 [RFC] Delayed logging Dave Chinner
2010-03-15 16:01 ` Christoph Hellwig
2010-03-15 16:33 ` Christoph Hellwig
2010-03-16 1:06 ` Dave Chinner [this message]
2010-03-15 16:08 ` Christoph Hellwig
2010-03-16 1:14 ` Dave Chinner
2010-03-15 16:38 ` Christoph Hellwig
2010-03-16 1:15 ` Dave Chinner
2010-03-15 18:08 ` Christoph Hellwig
2010-03-16 1:20 ` Dave Chinner
2010-03-31 13:26 ` Dave Chinner
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