linux-kernel - Re: 2.6.24-rc2 XFS nfsd hang

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Message-ID: <20071121150746.GB8454@infradead.org>
Date:	Wed, 21 Nov 2007 15:07:46 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Chris Wedgwood <cw@...f.org>, linux-xfs@....sgi.com,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.24-rc2 XFS nfsd hang

On Wed, Nov 14, 2007 at 01:08:38PM -0500, J. Bruce Fields wrote:
> > Personally I'd prefer it to only grow a struct stat or rather it's members
> > But the nfsd code currently expects a dentry so this might require some
> > major refactoring.
> 
> Well, we need to check for mountpoints, for example, so I don't see any
> way out of needing a dentry.  What's the drawback?

You're right - we'd probably need the dentry.  The drawback is that
we need to always get it in the dcache.  Which might be a good thing
depending on the workload.

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