linux-kernel - Re: [PATCH 1/3] enhanced lookup ESTALE error handling (v3)

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Message-Id: <1205187584.8385.6.camel@nimitz.home.sr71.net>
Date:	Mon, 10 Mar 2008 15:19:44 -0700
From:	Dave Hansen <haveblue@...ibm.com>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	akpm@...ux-foundation.org, staubach@...hat.com,
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
	trond.myklebust@....uio.no, linux-fsdevel@...r.kernel.org,
	viro@...iv.linux.org.uk, hch@....de
Subject: Re: [PATCH 1/3] enhanced lookup ESTALE error handling (v3)

On Mon, 2008-03-10 at 23:03 +0100, Miklos Szeredi wrote:
> > > This is a patch to enhance ESTALE error handling during the
> > > lookup process.  The error, ESTALE, can occur when out of data
> > > dentries, stored in the dcache, is used to translate a pathname
> > > component to a dentry.  When this occurs, the dentry which
> > > contains the pointer to the inode which refers to the non-existent
> > > file is dropped from the dcache and then the lookup process
> > > started again.  Care is taken to ensure that forward process is
> > > always being made.  If forward process is not detected, then the
> > > lookup process is terminated and the error, ENOENT, is returned
> > > to the caller.
> > 
> > This collides in non-trivial ways with the always-coming-never-arrives
> > r-o-bind-mounts patches.
> > 
> > I have an old version of those patches in -mm and I believe that Al
> > is/was/has set up some git tree with these patches and perhaps other stuff.

Al's tree is here:

http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/viro/vfs-2.6.git;a=summary

It's probably best to try and base your patches on top of there.  

-- Dave

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