[GIT PULL] overlayfs updates for 6.12

[Amir Goldstein]

Hi Linus,

Please pull overlayfs updates for 6.12.

This branch has been sitting in linux-next for over a week and
it has gone through the usual overlayfs test routines.

The branch merges cleanly with master branch of the moment.

Thanks,
Amir.

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The following changes since commit 3e9bff3bbe1355805de919f688bef4baefbfd436:

  Merge tag 'vfs-6.11-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs (2024-08-27 16:57:35 +1200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs.git ovl-update-6.12

for you to fetch changes up to 6c4a5f96450415735c31ed70ff354f0ee5cbf67b:

  ovl: fail if trusted xattrs are needed but caller lacks permission (2024-09-08 15:36:59 +0200)

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overlayfs updates for 6.12

- Increase robustness of overlayfs to crashes in the case of underlying
  filesystems that to not guarantee metadata ordering to persistent storage
  (problem was reported with ubifs).

- Deny mount inside container with features that require root privileges
  to work properly, instead of failing operations later.

- Some clarifications to overlayfs documentation.

----------------------------------------------------------------
Amir Goldstein (1):
      ovl: fsync after metadata copy-up

Haifeng Xu (1):
      ovl: don't set the superblock's errseq_t manually

Mike Baynton (1):
      ovl: fail if trusted xattrs are needed but caller lacks permission

Yuriy Belikov (1):
      overlayfs.rst: update metacopy section in overlayfs documentation

 Documentation/filesystems/overlayfs.rst |  7 ++++--
 fs/overlayfs/copy_up.c                  | 43 ++++++++++++++++++++++++++++++---
 fs/overlayfs/params.c                   | 38 +++++++++++++++++++++++++----
 fs/overlayfs/super.c                    | 10 ++------
 4 files changed, 79 insertions(+), 19 deletions(-)