slab allocator · Maintained

Maintainers

• M Vlastimil Babka <vbabka@kernel.org>
• M Harry Yoo <harry@kernel.org>
• M Andrew Morton <akpm@linux-foundation.org>
• R Hao Li <hao.li@linux.dev>
• R Christoph Lameter <cl@gentwo.org>
• R David Rientjes <rientjes@google.com>
• R Roman Gushchin <roman.gushchin@linux.dev>

Paths

• F Documentation/admin-guide/mm/slab.rst
• F Documentation/mm/slab.rst
• F include/linux/mempool.h
• F include/linux/slab.h
• F lib/tests/slub_kunit.c
• F mm/failslab.c
• F mm/mempool.c
• F mm/slab.h
• F mm/slab_common.c
• F mm/slub.c
• F scripts/gdb/linux/slab.py
• F tools/cgroup/memcg_slabinfo.py
• F tools/include/linux/slab.h
• F tools/lib/slab.c
• F tools/mm/slabinfo-gnuplot.sh
• F tools/mm/slabinfo.c

Last 30 days

Active reviewers (last 30 days)

• Kees Cook <kees@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-06-11
• Vlastimil Babka (SUSE) <vbabka@kernel.org>
  1 attestation (1 Acked-by) · last on 2026-06-11
• Harry Yoo (Oracle) <harry@kernel.org>
  1 attestation (1 Acked-by) · last on 2026-06-11

Recent patches

Most-recent 30 patches in this subsystem on netdev (capped at 30), ordered by date desc.

• COLD25d REVIEWED: 25 (25M) [PATCH net-next v2 1/2] mm/slab: add a node-track-caller variant for kmem buckets allocation
  2026-06-11 · Pedro Falcato <pfalcato@suse.de>
• COLD35d [PATCH 1/2] mm/slab: add a node-track-caller variant for kmem buckets allocation
  2026-06-02 · Pedro Falcato <pfalcato@suse.de>
• COLD36d Re: [PATCH] mm/slab: improve kmem_cache_alloc_bulk
  2026-05-29 · "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
• COLD36d [PATCH] mm/slab: improve kmem_cache_alloc_bulk
  2026-05-28 · Christoph Hellwig <hch@lst.de>
• COLD43d [PATCH] mm/slab: improve kmem_cache_alloc_bulk
  2026-05-27 · Christoph Hellwig <hch@lst.de>
• STALE172d Re: [PATCH] compiler_types: Introduce inline_for_performance
  2026-01-18 · Eric Dumazet <edumazet@google.com>
• STALE424d [RFC PATCH 3/7] mm/slab: revive the destructor feature in slab allocator
  2025-04-24 · Harry Yoo <hidden>
• STALE424d [RFC PATCH 1/7] mm/slab: refactor freelist shuffle
  2025-04-24 · Harry Yoo <hidden>
• STALE424d [RFC PATCH 2/7] treewide, slab: allow slab constructor to return an error
  2025-04-24 · Harry Yoo <hidden>
• STALE462d [RFC] slab: introduce auto_kfree macro
  2025-04-01 · Przemek Kitszel <przemyslaw.kitszel@intel.com>
• STALE526d [PATCH v2] kasan, mempool: don't store free stacktrace in io_alloc_cache objects.
  2025-01-27 · Andrey Ryabinin <ryabinin.a.a@gmail.com>
• STALE526d [PATCH] kasan, mempool: don't store free stacktrace in io_alloc_cache objects.
  2025-01-22 · Andrey Ryabinin <ryabinin.a.a@gmail.com>
• STALE668d REVIEWED: 4 (4M) [PATCH v4] memcg: add charging of already allocated slab objects
  2024-09-05 · Shakeel Butt <shakeel.butt@linux.dev>
• STALE677d [PATCH v3] memcg: add charging of already allocated slab objects
  2024-08-29 · Shakeel Butt <shakeel.butt@linux.dev>
• STALE679d [PATCH v2] memcg: add charging of already allocated slab objects
  2024-08-27 · Shakeel Butt <shakeel.butt@linux.dev>
• STALE679d [PATCH v1] memcg: add charging of already allocated slab objects
  2024-08-26 · Shakeel Butt <shakeel.butt@linux.dev>
• STALE682d [RFC PATCH] memcg: add charging of already allocated slab objects
  2024-08-24 · Shakeel Butt <shakeel.butt@linux.dev>
• STALE738d [PATCH v6 1/6] mm/slab: Introduce kmem_buckets typedef
  2024-07-01 · Kees Cook <kees@kernel.org>
• STALE738d [PATCH v6 3/6] mm/slab: Introduce kvmalloc_buckets_node() that can take kmem_buckets argument
  2024-07-01 · Kees Cook <kees@kernel.org>
• STALE738d [PATCH v6 4/6] mm/slab: Introduce kmem_buckets_create() and family
  2024-07-01 · Kees Cook <kees@kernel.org>
• STALE738d [PATCH v6 2/6] mm/slab: Plumb kmem_buckets into __do_kmalloc_node()
  2024-07-01 · Kees Cook <kees@kernel.org>
• STALE742d [PATCH v5 1/6] mm/slab: Introduce kmem_buckets typedef
  2024-06-19 · Kees Cook <kees@kernel.org>
• STALE742d [PATCH v5 3/6] mm/slab: Introduce kvmalloc_buckets_node() that can take kmem_buckets argument
  2024-06-19 · Kees Cook <kees@kernel.org>
• STALE742d [PATCH v5 4/6] mm/slab: Introduce kmem_buckets_create() and family
  2024-06-19 · Kees Cook <kees@kernel.org>
• STALE742d [PATCH v5 2/6] mm/slab: Plumb kmem_buckets into __do_kmalloc_node()
  2024-06-19 · Kees Cook <kees@kernel.org>
• STALE639d Re: [PATCH 00/14] replace call_rcu by kfree_rcu for simple kmem_cache_free callback
  2024-06-17 · Vlastimil Babka <hidden>
• STALE639d Re: [PATCH 00/14] replace call_rcu by kfree_rcu for simple kmem_cache_free callback
  2024-06-17 · "Jason A. Donenfeld" <Jason@zx2c4.com>
• STALE639d Re: [PATCH 00/14] replace call_rcu by kfree_rcu for simple kmem_cache_free callback
  2024-06-14 · Uladzislau Rezki <urezki@gmail.com>
• STALE765d [PATCH v4 1/6] mm/slab: Introduce kmem_buckets typedef
  2024-05-31 · Kees Cook <kees@kernel.org>
• STALE765d [PATCH v4 3/6] mm/slab: Introduce kvmalloc_buckets_node() that can take kmem_buckets argument
  2024-05-31 · Kees Cook <kees@kernel.org>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE172d Re: [PATCH] compiler_types: Introduce inline_for_performance
  2026-01-18 · Eric Dumazet <edumazet@google.com>