linux-kernel - Re: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13]

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Message-Id: <1157438714.4133.0.camel@raven.themaw.net>
Date:	Tue, 05 Sep 2006 14:45:14 +0800
From:	Ian Kent <raven@...maw.net>
To:	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	David Howells <dhowells@...hat.com>, Andrew Morton <akpm@...l.org>,
	torvalds@...l.org, steved@...hat.com,
	linux-fsdevel@...r.kernel.org, linux-cachefs@...hat.com,
	nfsv4@...ux-nfs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] Permit filesystem local caching and NFS superblock
	sharing [try #13]

On Tue, 2006-09-05 at 00:57 -0400, Trond Myklebust wrote:
> On Tue, 2006-09-05 at 12:06 +0800, Ian Kent wrote:
> 
> > > One way to fix this is to simply not hash the dentry when we're doing
> > > the O_EXCL intent optimisation, but rather to only hash it _after_ we've
> > > successfully created the file on the server. Something like the attached
> > > patch ought to do it.
> > 
> > No.
> > 
> > This patch simply marks the dentry negative and returns ENOMEM from the
> > lookup which, as would be expected, results in this error being returned
> > to userspace.
> 
> Oops. You are right. I forgot to set res=NULL...

Now returns EPERM.



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