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

Last 30 days

Recent patches

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

• COLD22d Re: [PATCH v4 1/3] slab: support for compiler-assisted type-based slab cache partitioning
  2026-05-14 · "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
• COLD22d [PATCH v4 3/3] slab: fix kernel-docs for mm-api
  2026-05-11 · Marco Elver <elver@google.com>
• COLD22d [PATCH v4 2/3] slab: improve KMALLOC_PARTITION_RANDOM randomness
  2026-05-11 · Marco Elver <elver@google.com>
• COLD22d REVIEWED: 1 (0M) [PATCH v4 1/3] slab: support for compiler-assisted type-based slab cache partitioning
  2026-05-11 · Marco Elver <elver@google.com>
• COLD30d Re: [PATCH v3 1/2] slab: support for compiler-assisted type-based slab cache partitioning
  2026-05-08 · Marco Elver <elver@google.com>
• COLD30d Re: [PATCH v3 2/2] slab: fix kernel-docs for mm-api
  2026-05-04 · Marco Elver <elver@google.com>
• COLD30d [PATCH v3 2/2] slab: fix kernel-docs for mm-api
  2026-04-24 · Marco Elver <elver@google.com>
• COLD30d REVIEWED: 1 (0M) [PATCH v3 1/2] slab: support for compiler-assisted type-based slab cache partitioning
  2026-04-24 · Marco Elver <elver@google.com>
• COLD49d Re: [PATCH v2] slab: support for compiler-assisted type-based slab cache partitioning
  2026-04-22 · Marco Elver <elver@google.com>
• COLD49d REVIEWED: 1 (0M) [PATCH v2] slab: support for compiler-assisted type-based slab cache partitioning
  2026-04-15 · Marco Elver <elver@google.com>
• STALE61d Re: [PATCH v1] slab: support for compiler-assisted type-based slab cache partitioning
  2026-04-06 · "Harry Yoo (Oracle)" <harry@kernel.org>
• STALE61d [PATCH v1] slab: support for compiler-assisted type-based slab cache partitioning
  2026-03-31 · Marco Elver <elver@google.com>
• STALE137d REVIEWED: 2 (1M) [PATCH v2] slab: replace cache_from_obj() with inline checks
  2026-01-21 · Vlastimil Babka <hidden>
• STALE141d [PATCH] slab: replace cache_from_obj() with inline checks
  2026-01-20 · Vlastimil Babka <hidden>
• STALE106d [PATCH v6 1/5] slab: Introduce kmalloc_obj() and family
  2025-12-03 · Kees Cook <kees@kernel.org>
• STALE106d [PATCH v6 4/5] slab: Introduce kmalloc_flex() and family
  2025-12-03 · Kees Cook <kees@kernel.org>
• STALE180d [PATCH v5 2/4] slab: Introduce kmalloc_obj() and family
  2025-11-22 · Kees Cook <kees@kernel.org>
• STALE270d Re: [vbabka-slab:slab/for-6.18/kmalloc_nolock 14/14] mm/slub.c:3866:2: warning: variable 'flags' is used uninitialized whenever '&&' condition is false
  2025-09-12 · Alexei Starovoitov <hidden>
• STALE411d [PATCH v1 1/1] mm, slab: fold need_slab_obj_ext() into its only user
  2025-04-24 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE244d [PATCH v4 2/2] slab: Introduce kmalloc_obj() and family
  2025-03-15 · Kees Cook <kees@kernel.org>
• STALE614d [PATCH v3] slab: Introduce kmalloc_obj() and family
  2024-08-22 · Kees Cook <kees@kernel.org>
• STALE667d [PATCH] slab: Introduce kmalloc_obj() and family
  2024-08-07 · Kees Cook <kees@kernel.org>
• STALE690d [PATCH] slab: Introduce kmalloc_obj() and family
  2024-07-19 · Kees Cook <kees@kernel.org>
• STALE880d [PATCH 3/3] treewide: Update LLVM Bugzilla links
  2024-01-09 · Nathan Chancellor <nathan@kernel.org>
• DORMANTno replies Re: [arm64:devel/kmalloc-minalign 14/15] mm/slab_common.c:872:6: error: use of undeclared identifier 'io_tlb_default_mem'
  2023-05-19 · Catalin Marinas <catalin.marinas@arm.com>
• STALE1224d [PATCH 1/6] slab: Clean up SLOB vs kmalloc() definition
  2022-11-01 · Kees Cook <hidden>
• STALE1224d [PATCH 3/6] slab: Provide functional __alloc_size() hints to kmalloc_trace*()
  2022-11-01 · Kees Cook <hidden>
• STALE1224d [PATCH 2/6] slab: Remove special-casing of const 0 size allocations
  2022-11-01 · Kees Cook <hidden>
• STALE1348d [PATCH v2 16/16] slab: Restore __alloc_size attribute to __kmalloc_track_caller
  2022-09-23 · Kees Cook <hidden>
• STALE1348d [PATCH v2 15/16] mm: Make ksize() a reporting-only function
  2022-09-23 · Kees Cook <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE137d REVIEWED: 2 (1M) [PATCH v2] slab: replace cache_from_obj() with inline checks
  2026-01-21 · Vlastimil Babka <hidden> · 2 Reviewed-by
• COLD49d REVIEWED: 1 (0M) [PATCH v2] slab: support for compiler-assisted type-based slab cache partitioning
  2026-04-15 · Marco Elver <elver@google.com> · 1 Acked-by
• COLD30d REVIEWED: 1 (0M) [PATCH v3 1/2] slab: support for compiler-assisted type-based slab cache partitioning
  2026-04-24 · Marco Elver <elver@google.com> · 1 Acked-by
• COLD22d REVIEWED: 1 (0M) [PATCH v4 1/3] slab: support for compiler-assisted type-based slab cache partitioning
  2026-05-11 · Marco Elver <elver@google.com> · 1 Acked-by

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.

• COLD22d [PATCH v4 3/3] slab: fix kernel-docs for mm-api
  2026-05-11 · Marco Elver <elver@google.com>