** Description changed: + [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. + + [Original bug report] + The next patch has not been ported to the the 5.13 branch: $ git show Ubuntu-azure-5.8-5.8.0-1033.35_20.04.1~656 commit 5f5716d1f7ece06c66d7d8145dd6b3a5886b3e56 Author: Alexander Mikhalitsyn <alexan...@mihalicyn.com> Date: Mon Apr 26 10:11:00 2021 +0200 - UBUNTU: SAUCE: overlayfs: fix incorrect mnt_id of files opened from map_files - - BugLink: https://bugs.launchpad.net/bugs/1857257 + UBUNTU: SAUCE: overlayfs: fix incorrect mnt_id of files opened from + map_files + + BugLink: https://bugs.launchpad.net/bugs/1857257 ... - Fixes: d24b8a5 ("UBUNTU: SAUCE: overlayfs: allow with shiftfs as + Fixes: d24b8a5 ("UBUNTU: SAUCE: overlayfs: allow with shiftfs as underlay") - But it isn't in the 5.13 branch: - $ git log --pretty=oneline origin/azure-5.13-next fs/overlayfs/file.c + $ git log --pretty=oneline origin/azure-5.13-next fs/overlayfs/file.c 1e6145d8708c831d2aa5c26aa15eb98e1a1683b9 ovl: fix use after free in struct ovl_aio_req 7b5bda27d1fc4d7bde20cf6ed203fe88c458169a ovl: fix IOCB_DIRECT if underlying fs doesn't support direct IO 1626e7f7ab7eb74e142fec7fe6b7c9614972a56b ovl: fix deadlock in splice write 1443bc4a25ca84d60d39a8ae1dc6215abdd637a4 UBUNTU: SAUCE: overlayfs: allow with shiftfs as underlay
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1967924 Title: One overlayfs fix has not been backported to the 5.13 branch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1967924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs