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. > > I assume it's 9caccd41541a ("fs: introduce MOUNT_ATTR_IDMAP"), and Yes, that's correct. Thanks! > that's what I added manually to it as I applied it, but relying on me > noticing and getting things right can be a risky business.. Noted. :) Christian