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Date: Wed, 10 Oct 2018 13:46:59 +0200
From: Ilya Dryomov <idryomov@...il.com>
To: Luis Henriques <lhenriques@...e.com>
Cc: "Yan, Zheng" <ukernel@...il.com>, "Yan, Zheng" <zyan@...hat.com>,
Sage Weil <sage@...hat.com>,
Ceph Development <ceph-devel@...r.kernel.org>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ceph: only allow punch hole mode in fallocate
On Wed, Oct 10, 2018 at 1:19 PM Luis Henriques <lhenriques@...e.com> wrote:
>
> Ilya Dryomov <idryomov@...il.com> writes:
>
> > On Wed, Oct 10, 2018 at 6:21 AM Yan, Zheng <ukernel@...il.com> wrote:
> >>
> >> On Wed, Oct 10, 2018 at 1:54 AM Luis Henriques <lhenriques@...e.com> wrote:
>
> <snip>
>
> >> Applied, thanks
> >
> > I don't think it should go to stable kernels. Strictly speaking it's
> > a behaviour change -- it's been this way for many years and, unless you
> > are close to ENOSPC, it's sort of appears to work. I'll take off the
> > stable tag unless I hear objections.
>
> Right, it can in fact break applications that rely on the previous
> (bogus) behaviour. But it can also be claimed that it *will* break
> applications anyway with an updated kernel, so backporting it to older
> kernels will just allow a consistent behaviour.
>
> Anyway, I'm OK either way. But if you drop the stable tag make sure you
> also remove the 'Fixes:' tag as I believe the stable folks will still
> pick this patch if it includes a valid SHA1 in it.
Yeah, we've run into this in the past.
Thanks,
Ilya
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