APPLIED[Impish/Cmnt]: [SRU][J/I][PATCH v2 0/1] re-apply missing overlayfs SAUCE patch

[Stefan Bader]

On 14.04.22 17:57, Andrea Righi wrote:
> BugLink: https://bugs.launchpad.net/bugs/1967924
> 
> [Impact]
> 
> Starting with 5.13 we've incorrectly dropped the following sauce patch:
> 
>      UBUNTU: SAUCE: overlayfs: fix incorrect mnt_id of files opened from map_files
> 
> This patch seems to be required to use overlayfs on top of shiftfs and
> without this patch we may break containers that rely on shiftfs (using
> zfs/ceph as storage pool w/ shiftfs enabled).
> 
> [Test case]
> 
> No specific test case provided.
> 
> [Fix]
> 
> The original SAUCE patch relies on AUFS in order to use vma->vm_prfile,
> but we're not providing AUFS anymore in jammy,.
> 
> The fix consists of re-apply this patch with a little refactoring to be
> dependent on CONFIG_AUFS_FS.
> 
> [Regression potential]
> 
> This patch is touching overlayfs, so we may see potential regressions in
> overlayfs.
> 
> ChangeLog (v1 -> v2):
>   - missing cover letter email
> 
> 

Applied to impish:linux/master-next (dropping one bug reference which had no 
impish target). Thanks.

-Stefan
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