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From: Christoph Hellwig <hch@infradead.org>
To: Alex Elder <aelder@sgi.com>
Cc: Christoph Hellwig <hch@infradead.org>, xfs@oss.sgi.com
Subject: Re: [PATCH] xfs: check for not fully initialized inodes in xfs_ireclaim
Date: Mon, 30 Nov 2009 15:33:49 -0500	[thread overview]
Message-ID: <20091130203349.GB16127@infradead.org> (raw)
In-Reply-To: <1AB9A794DBDDF54A8A81BE2296F7BDFE83AF45@cf--amer001e--3.americas.sgi.com>

On Mon, Nov 30, 2009 at 02:07:40PM -0600, Alex Elder wrote:
> Christoph Hellwig wrote:
> > Add an assert for inodes not added to the inode cache in xfs_ireclaim, to make
> > sure we're not going to introduce something like the famous nfsd inode cache
> > bug again.
> 
> I confess I have not looked at the radix tree
> code in detail yet, but radix_tree_delete()
> returns a value that is ignored here.  It reportedly
> will return a null pointer if the index has no
> corresponding item in the tree, so this could be
> used in the assertion rather than doing a separate
> lookup.
> 
> I think the change is fine, but would rather see
> it done without the extra lookup (though there may
> be a good reason for doing it anyway).

Sounds good, I'll redo it.

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  reply	other threads:[~2009-11-30 20:33 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-12 19:06 [PATCH] xfs: check for not fully initialized inodes in xfs_ireclaim Christoph Hellwig
2009-11-30 20:07 ` Alex Elder
2009-11-30 20:33   ` Christoph Hellwig [this message]
2009-12-01 18:12 ` [PATCH V2] " Christoph Hellwig
2009-12-15 20:05   ` Alex Elder

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