Merge tag 'slab-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka...

Pull slab updates from Vlastimil Babka:

 - mempool_alloc_bulk() support for upcoming users in the block layer
   that need to allocate multiple objects at once with the mempool's
   guaranteed progress semantics, which is not achievable with an
   allocation single objects in a loop. Along with refactoring and
   various improvements (Christoph Hellwig)

 - Preparations for the upcoming separation of struct slab from struct
   page, mostly by removing the struct folio layer, as the purpose of
   struct folio has shifted since it became used in slab code (Matthew
   Wilcox)

 - Modernisation of slab's boot param API usage, which removes some
   unexpected parsing corner cases (Petr Tesarik)

 - Refactoring of freelist_aba_t (now struct freelist_counters) and
   associated functions for double cmpxchg, enabled by -fms-extensions
   (Vlastimil Babka)

 - Cleanups and improvements related to sheaves caching layer, that were
   part of the full conversion to sheaves, which is planned for the next
   release (Vlastimil Babka)

* tag 'slab-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (42 commits)
  slab: Remove unnecessary call to compound_head() in alloc_from_pcs()
  mempool: clarify behavior of mempool_alloc_preallocated()
  mempool: drop the file name in the top of file comment
  mempool: de-typedef
  mempool: remove mempool_{init,create}_kvmalloc_pool
  mempool: legitimize the io_schedule_timeout in mempool_alloc_from_pool
  mempool: add mempool_{alloc,free}_bulk
  mempool: factor out a mempool_alloc_from_pool helper
  slab: Remove references to folios from virt_to_slab()
  kasan: Remove references to folio in __kasan_mempool_poison_object()
  memcg: Convert mem_cgroup_from_obj_folio() to mem_cgroup_from_obj_slab()
  mempool: factor out a mempool_adjust_gfp helper
  mempool: add error injection support
  mempool: improve kerneldoc comments
  mm: improve kerneldoc comments for __alloc_pages_bulk
  fault-inject: make enum fault_flags available unconditionally
  usercopy: Remove folio references from check_heap_object()
  slab: Remove folio references from kfree_nolock()
  slab: Remove folio references from kfree_rcu_sheaf()
  slab: Remove folio references from build_detached_freelist()
  ...

diff --cc mm/mempool.c
Simple merge

diff --cc mm/page_alloc.c
Simple merge

diff --cc mm/slub.c
Simple merge