linux-kernel - Re: nfsd bug fixes for 3.15

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Message-ID: <20140425073912.GA22295@fieldses.org>
Date:	Fri, 25 Apr 2014 03:39:12 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Trond Myklebust <trond.myklebust@...marydata.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
	Devel FS Linux <linux-fsdevel@...r.kernel.org>,
	Linux Kernel mailing list <linux-kernel@...r.kernel.org>,
	Layton Jeff <jlayton@...hat.com>
Subject: Re: nfsd bug fixes for 3.15

On Thu, Apr 24, 2014 at 12:46:36PM -0400, Trond Myklebust wrote:
> On Thu, Apr 24, 2014 at 12:34 PM, J. Bruce Fields <bfields@...ldses.org> wrote:
> > On Thu, Apr 24, 2014 at 11:31:16AM -0400, J. Bruce Fields wrote:
> >> On Thu, Apr 24, 2014 at 06:51:03AM -0400, Trond Myklebust wrote:
> >> > Hi Bruce,
> >> >
> >> > On Thu, Apr 24, 2014 at 2:25 AM, J. Bruce Fields <bfields@...ldses.org> wrote:
> >> > > Please pull the following bug fixes for 3.15 from:
> >> > >
> >> > >   git://linux-nfs.org/~bfields/linux.git for-3.15
> >> > >
> >> > > Three small nfsd bugfixes (including one locks.c fix for a bug triggered
> >> > > only from nfsd).
> >> > >
> >> > > Jeff's patches are for long-existing problems that became easier to
> >> > > trigger since the addition of vfs delegation support.
> >> > >
> >> > > --b.
> >> > >
> >> > > ----------------------------------------------------------------
> >> > > J. Bruce Fields (1):
> >> > >       Revert "nfsd4: fix nfs4err_resource in 4.1 case"
> >> > >
> >> >
> >> > Wait. Why?
> >>
> >> Have you changed your mind since our previous discussion, or just
> >> forgotten it?  (Or did I screw up and revert the wrong commit?)  See
> >>
> >>       http://mid.gmane.org/<BAD6904F-A82A-4FBC-807F-16560B2A23E0@...marydata.com>
> >>
> >> > NFS4ERR_RESOURCE breaks the Linux client.
> >>
> >> This returns us to pre-3.15 behavior so shouldn't introduce any new
> >> breakage.
> >>
> >> Fundamentally the problem is that we're returning an error in cases that
> >> shouldn't succeed, and rather than replacing one incorrect error by
> >
> > s/shouldn't/should/, apologies!--b.
> >
> >> another it seemed better to wait for a proper fix.
> >>
> >> --b.
> 
> I really shouldn't try to read my email before 8am (or at least not
> before my third espresso). I was confusing this with the
> NFS4ERR_STALE_STATEID problem that was merged as part of the same
> pull.
> Reverting the NFS4ERR_RESOURCE patch is fine.

Great, thanks.--b.
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