[PATCH v3 00/15] mm/shmem: various (urgent?) fixes

[David Hildenbrand (Arm)]

Hi,

see v1 for details. TL;DR various fixes.

Rebased on top of latest mm-stable. The dropped fix is now included
again :)

Thanks everyone for the fast review and tests!

Signed-off-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>
---
Changes in v3:
- Rebased on mm-stable
 - Fixup for shmem_set_acl() no longer required
- Re-include the commit I dropped by accident
- Apply tags
- Link to v2: https://patch.msgid.link/20261027-fixes_shmem-v2-0-86a00952acb9@xxxxxxxxxx

Changes in v2:
- Rebased on mm-stable
 - Fixup shmem_set_acl() compilation issue after rebase
 - Dropped: "mm/shmem: avoid moving the truncation start backwards"
 - Fixed up: "mm/shmem: stop retrying folios that cannot be split"
- In "hugetlbfs: enforce F_SEAL_EXEC in setattr", check for S_ISREG
- Smaller patch description fixups
- Picked up tags
- Link to v1: https://patch.msgid.link/20261026-fixes_shmem-v1-0-703206d5fa0c@xxxxxxxxxx

---

Chris Mason (4):
      mm/mempolicy: charge shared policy nodes
      mm/shmem: honour F_SEAL_EXEC when an ACL is set
      mm/shmem: stop retrying folios that cannot be split
      mm/shmem: preserve data in clean folios when splitting fails

David Hildenbrand (Arm) (7):
      mm/shmem: discard whole new large folios on fallocate rollback
      mm/shmem: rescan after nonuniform folio splitting
      mm/shmem: fix truncate hang in large swap entry
      mm/shmem: preserve allocation errors when swapping in large entries
      mm/shmem: fix truncate loop after boundary swapin failure
      mm/shmem: fix accounting of swapin-error markers
      mm/shmem: fix truncation of files containing only swapin-error markers

Eva Kurchatova (1):
      hugetlbfs: enforce F_SEAL_EXEC in setattr

Josef Bacik (3):
      tmpfs: keep the quota soft limits of an unused id
      tmpfs: preserve explicitly disabled quota limits
      mm/shmem: hold off eviction in shmem_writeout()

 fs/hugetlbfs/inode.c  |   8 +++
 include/linux/memfd.h |   9 +++
 mm/mempolicy.c        |   4 +-
 mm/shmem.c            | 168 ++++++++++++++++++++++++++++++++++----------------
 mm/shmem_quota.c      |  28 +++++----
 5 files changed, 149 insertions(+), 68 deletions(-)

---

base-commit: 65ba8f34ec886ec72b2c07ddc8cf3d815c32869d

change-id: 20261025-fixes_shmem-2782719b130e

--

Cheers,

David