Merge tag 'mm-hotfixes-stable-2024-01-05-11-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc mm fixes from Andrew Morton:
 "12 hotfixes.

  Two are cc:stable and the remainder either address post-6.7 issues or
  aren't considered necessary for earlier kernel versions"

* tag 'mm-hotfixes-stable-2024-01-05-11-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: shrinker: use kvzalloc_node() from expand_one_shrinker_info()
  mailmap: add entries for Mathieu Othacehe
  MAINTAINERS: change vmware.com addresses to broadcom.com
  arch/mm/fault: fix major fault accounting when retrying under per-VMA lock
  mm/mglru: skip special VMAs in lru_gen_look_around()
  MAINTAINERS: hand over hwpoison maintainership to Miaohe Lin
  MAINTAINERS: remove hugetlb maintainer Mike Kravetz
  mm: fix unmap_mapping_range high bits shift bug
  mm: memcg: fix split queue list crash when large folio migration
  mm: fix arithmetic for max_prop_frac when setting max_ratio
  mm: fix arithmetic for bdi min_ratio
  mm: align larger anonymous mappings on THP boundaries

1 files changed, 11 insertions, 0 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index b226090fd906..651b86ff03dd 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -7543,6 +7543,17 @@ void mem_cgroup_migrate(struct folio *old, struct folio *new)
 
 	/* Transfer the charge and the css ref */
 	commit_charge(new, memcg);
+	/*
+	 * If the old folio is a large folio and is in the split queue, it needs
+	 * to be removed from the split queue now, in case getting an incorrect
+	 * split queue in destroy_large_folio() after the memcg of the old folio
+	 * is cleared.
+	 *
+	 * In addition, the old folio is about to be freed after migration, so
+	 * removing from the split queue a bit earlier seems reasonable.
+	 */
+	if (folio_test_large(old) && folio_test_large_rmappable(old))
+		folio_undo_large_rmappable(old);
 	old->memcg_data = 0;
 }