Re: [PATCH] fs/mount_setattr: always cleanup mount_kattr

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On Fri, Dec 31, 2021 at 11:30:34AM +0100, Christian Brauner wrote:
> On Thu, Dec 30, 2021 at 03:14:33PM -0800, Linus Torvalds wrote:
> > On Thu, Dec 30, 2021 at 11:23 AM Christian Brauner
> > <christian.brauner@xxxxxxxxxx> wrote:
> > >
> > > Would you be ok with applying this fix directly? I
> > 
> > Done.
> > 
> > That said, I would have liked a "Fixes:" tag, or some indication of
> > how far back the stable people should take this..
> 
> Ugh, I missed to add that.
> >From a pure upstream stable perspective the only relevant and still
> supported kernel that should get this fix is 5.15.
> 
> I can make it a custom to mark all patches that should go to stable with
> the first kernel version where a given fix should be applied. In this
> case this whould've meant I'd given it:
> 
> Cc: <stable@xxxxxxxxxxxxxxx> # v5.12+
> 
> For upstream stable maintainers it should be clear that since the only
> supported stable version within the range is v5.15.
> For downstream users/distros it should help to identify whether they
> still run/maintain a kernel that falls within the range of kernels that
> would technically be eligible for this fix.
> 
> I haven't seen whether we prefer the Cc: with # v*.**+ syntax to a
> simple Cc: without it nowadays.

If you do the # v.** syntax, or the Fixes: tag, then I know exactly how
far back to backport things.  If a failure occurs in backporting to a
listed place, then I will send you a FAILED email.

If there is no such marking, then I just have to guess myself and if I
start to get conflicts on older kernels, I just stop and do not send a
FAILED email if it does not look obviously relevant to me.

I'll just queue this up for 5.15, thanks.

greg k-h



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