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Linus Torvalds 918e25291c slab changes for 7.3 
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Merge tag 'slab-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab updates from Vlastimil Babka:

 - Add kfree_rcu_nolock() that can be used from contexts where spinning
   on a lock might be unsafe, such as a BPF program attached to an
   arbitrary function, or in NMI context. This complements the existing
   kfree_nolock() support (Harry Yoo)

 - Runtime instead of compile-time slabobj_ext sizing.

   Avoid wasting memory when memory allocation profiling is compiled but
   not enabled, with initial partial support to also avoid wasting
   memory for objcg pointers when those are not needed, while profiling
   is enabled (Vlastimil Babka)

 - Various non-urgent fixes, cleanups and optimizations (Hao Li,
   Hongling Zeng, Li RongQing, Li Xiasong, Seongjun Hong, Shengming Hu)

* tag 'slab-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (31 commits)
  mm/slab, kfence, memcg: completely remove obj_ext for kfence objects
  mm/slab: stop allocating objcg pointers when unnecessary
  mm/slab: add cache_ and slab_needs_objcg() helpers
  mm/slab: stop exporting kvfree_rcu_barrier[_on_cache]()
  slub_kunit: extend the test for kfree_rcu_nolock()
  mm/slab: introduce kfree_rcu_nolock()
  mm/slab: introduce struct kvfree_rcu_head for kvfree_rcu batching
  mm/slab: reduce slabobj_ext memory with allocation profiling disabled
  mm/slab: introduce slab_obj_ext_has_codetag()
  mm/slab: allow kfree_rcu_sheaf() on PREEMPT_RT
  mm/slab: extend deferred free mechanism to handle rcu sheaves
  mm/slab: use call_rcu() in unknown context if irqs are enabled
  mm/slab: handle the !allow_spin case in kfree_rcu_sheaf()
  mm/slab: change struct slabobj_ext to a union
  mm/slab: replace slab.stride with obj_exts_in_object
  mm/slab: abstract slabobj_ext.ref access
  mm/slab: abstract slabobj_ext.objcg access
  mm/slab: make slab_obj_ext() determine object index
  mm: move struct slabobj_ext to mm/slab.h
  mm/slab: remove objs_per_slab()
  ...
2026-08-24 10:58:57 -07:00
..
damon mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
kasan mm/kasan: remove redundant initialization for kasan_flag_write_only 2026-07-28 21:11:44 -07:00
kfence mm/slab, kfence, memcg: completely remove obj_ext for kfence objects 2026-08-04 12:30:45 +02:00
kmsan mm: split out vmalloc declarations from internal.h 2026-08-04 19:18:46 -07:00
tests sparc/mm: export symbols for lazy_mmu_mode KUnit tests 2026-01-31 14:22:40 -08:00
alloc_tag.c mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG 2026-07-30 19:40:44 -07:00
backing-dev.c mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() 2026-04-18 23:24:27 -07:00
balloon.c mm: rename CONFIG_BALLOON_COMPACTION to CONFIG_BALLOON_MIGRATION 2026-01-31 14:22:36 -08:00
bpf_memcontrol.c bpf: Revert "bpf: drop KF_ACQUIRE flag on BPF kfunc bpf_get_root_mem_cgroup()" 2026-01-21 09:38:16 -08:00
cma_debug.c mm/cma_debug: fix invalid accesses for inactive CMA areas 2026-05-28 20:50:33 -07:00
cma_sysfs.c mm/cma_sysfs: skip inactive CMA areas in sysfs 2026-06-03 16:25:49 -07:00
cma.c mm: split out mm_init and memblock declarations from internal.h 2026-08-04 19:18:45 -07:00
cma.h
compaction.c mm: page_alloc: fix non-movable reclaim storm in defrag_mode 2026-08-06 18:57:24 -07:00
debug_page_alloc.c
debug_page_ref.c
debug_vm_pgtable.c mm: decouple protnone helpers from CONFIG_NUMA_BALANCING 2026-08-04 19:18:36 -07:00
debug.c mm: prefer mm->def_vma_flags in mm logic 2026-08-06 18:57:02 -07:00
dmapool_test.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dmapool.c
early_ioremap.c mm/early_ioremap: clarify early_ioremap_reset() semantics 2026-08-06 18:57:21 -07:00
execmem.c mm: split out vmalloc declarations from internal.h 2026-08-04 19:18:46 -07:00
fadvise.c mm/fadvise: validate offset in generic_fadvise 2026-04-05 13:52:53 -07:00
fail_page_alloc.c
failslab.c
filemap.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
folio-compat.c mm: add SPDX id lines to some mm source files 2026-02-06 15:47:16 -08:00
folio.c mm: rename swap.c to folio.c 2026-08-04 19:18:35 -07:00
gup_test.c mm/gup_test: reject wrapped user ranges 2026-06-21 11:37:37 -07:00
gup_test.h
gup.c mm/gup: fix GUP-fast fallback for NULL-mapping order-0 folios 2026-08-04 19:18:48 -07:00
highmem.c mm/highmem: fix __kmap_to_page() build error 2026-01-31 14:22:38 -08:00
hmm.c mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support 2026-08-04 19:18:54 -07:00
huge_memory.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
hugetlb_cgroup.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
hugetlb_cma.c mm/hugetlb: remove unused bootmem cma field 2026-07-28 21:12:00 -07:00
hugetlb_cma.h mm/hugetlb: refactor early boot gigantic hugepage allocation 2026-07-28 21:11:59 -07:00
hugetlb_internal.h
hugetlb_sysctl.c mm, hugetlb: implement movable_gigantic_pages sysctl 2026-01-20 19:24:50 -08:00
hugetlb_sysfs.c
hugetlb_vmemmap.c mm/hugetlb_vmemmap: remove bootmem_info leftovers 2026-08-04 19:18:42 -07:00
hugetlb_vmemmap.h mm/sparse-vmemmap: remove sparse_vmemmap_init_nid_late() 2026-07-28 21:12:00 -07:00
hugetlb.c kho: make boot time huge page allocation work nicely with KHO 2026-08-23 09:17:38 -07:00
hwpoison-inject.c
init-mm.c exec_state: relocate dumpable information 2026-05-26 11:02:01 +02:00
internal.h mm: page_alloc: fix non-movable reclaim storm in defrag_mode 2026-08-06 18:57:24 -07:00
interval_tree.c mm/rmap: rename anon_vma_interval_tree_*() to anon_rmap_tree_*() 2026-08-04 19:18:58 -07:00
ioremap.c
Kconfig mm/hmm: make CONFIG_HMM_MIRROR select CONFIG_MMU_NOTIFIER 2026-08-04 19:18:53 -07:00
Kconfig.debug mm: move alloc tag to mm 2026-07-28 21:12:03 -07:00
khugepaged.c mm/khugepaged: replace mutex_lock/mutex_unlock usage with guard macro 2026-08-06 18:57:26 -07:00
kmemleak.c mm/kmemleak: skip the remaining scan phases when interrupted 2026-07-28 21:12:01 -07:00
ksm.c ksm: stop iterating VMAs when ksm_test_exit returns true 2026-08-06 18:57:25 -07:00
list_lru.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-06-19 10:14:34 -07:00
maccess.c
madvise.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
Makefile mm/bootmem_info: remove CONFIG_HAVE_BOOTMEM_INFO_NODE 2026-08-04 19:18:42 -07:00
mapping_dirty_helpers.c mm/vma: use vma_start_pgoff(), linear_page_index() in mm code 2026-08-04 19:19:00 -07:00
memblock.c kho: make boot time huge page allocation work nicely with KHO 2026-08-23 09:17:38 -07:00
memcontrol-v1.c mm: memcg-v1: make mem_cgroup_oom_notify_cb() return void 2026-08-06 18:56:55 -07:00
memcontrol-v1.h Merge branch 'mm-hotfixes-stable' into mm-stable in order to pick up 2026-08-04 19:15:12 -07:00
memcontrol.c slab changes for 7.3 2026-08-24 10:58:57 -07:00
memfd_luo.c mm/memfd_luo: document preservation of file seals 2026-05-04 14:03:16 +00:00
memfd.c mm/vma: update do_mmap() to use vma_flags_t 2026-08-06 18:57:01 -07:00
memory_hotplug.c mm/memory_hotplug: add offline_and_remove_memory_ranges() 2026-08-06 18:56:59 -07:00
memory-failure.c mm/rmap: rename anon_vma_interval_tree_*() to anon_rmap_tree_*() 2026-08-04 19:18:58 -07:00
memory-tiers.c mm: introduce CONFIG_NUMA_MIGRATION and simplify CONFIG_MIGRATION 2026-04-05 13:53:33 -07:00
memory.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
mempolicy.c mm/mempolicy: skip non-present PMDs when queueing folios 2026-08-04 19:19:05 -07:00
mempool.c mm/mempool: Untangle CONFIG_SLUB_DEBUG_ON abuse and switch to static key 2026-07-08 18:31:27 +02:00
memremap.c mm: decrement MTHP_STAT_NR_ANON in free_zone_device_folio() 2026-07-28 17:37:31 -07:00
memtest.c mm/memtest: add underflow detection for size calculation 2026-01-09 11:53:51 +02:00
migrate_device.c mm: rename uffd-wp PTE accessors to uffd 2026-08-04 19:18:36 -07:00
migrate.c mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch() 2026-08-06 18:57:25 -07:00
mincore.c mm: mincore: refactor mincore_page() 2026-08-06 18:57:15 -07:00
mlock.c mm/mlock: convert mlock code to use vma_flags_t 2026-08-06 18:57:03 -07:00
mm_init.c kho: make boot time huge page allocation work nicely with KHO 2026-08-23 09:17:38 -07:00
mm_init.h mm: split out mm_init and memblock declarations from internal.h 2026-08-04 19:18:45 -07:00
mm_slot.h mm/mm_slot.h: add comments for mm_slot_lookup/insert 2026-08-06 18:57:04 -07:00
mmap_lock.c mm/vma: improve and document __is_vma_write_locked() 2026-01-31 14:22:51 -08:00
mmap.c mm/vma: convert miscellaneous uses of VMA flags in core mm 2026-08-06 18:57:03 -07:00
mmu_gather.c mm/mmu_gather: replace IPI with synchronize_rcu() when batch allocation fails 2026-04-05 13:53:05 -07:00
mmu_notifier.c mm/vma: correct incorrect vma.h inclusion 2026-08-04 19:19:04 -07:00
mmzone.c mm: constify oom_control, scan_control, and alloc_context nodemask 2026-07-28 21:12:04 -07:00
mprotect.c mm/mprotect: convert mprotect code to use vma_flags_t 2026-08-06 18:57:04 -07:00
mremap.c mm/mremap: convert mremap code to use vma_flags_t 2026-08-06 18:57:04 -07:00
mseal.c mm/mseal: remove further superfluous comments, do_mseal() 2026-08-06 18:57:12 -07:00
msync.c mm/vma: use vma_start_pgoff(), linear_page_index() in mm code 2026-08-04 19:19:00 -07:00
nommu.c mm/vma: update do_mmap() to use vma_flags_t 2026-08-06 18:57:01 -07:00
numa_emulation.c mm/fake-numa: fix under-allocation detection in uniform split 2026-06-02 08:34:03 +03:00
numa_memblks.c mm: numa_memblks: use numa_add_reserved_memblk() in numa_cleanup_meminfo() 2026-07-03 11:16:27 +03:00
numa.c
oom_kill.c mm/oom_kill.c: simpilfy rcu call with guard(rcu) 2026-04-05 13:53:17 -07:00
page_alloc.c mm: page_alloc: fix non-movable reclaim storm in defrag_mode 2026-08-06 18:57:24 -07:00
page_alloc.h mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG 2026-07-30 19:40:44 -07:00
page_counter.c
page_ext.c mm/page_ext: Add page_ext_get_from_phys() 2026-01-21 12:51:48 +01:00
page_frag_cache.c mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG 2026-07-30 19:40:44 -07:00
page_idle.c mm/page_idle.c: remove redundant mmu notifier in aging code 2026-04-05 13:53:02 -07:00
page_io.c block-7.2-20260625 2026-06-25 09:56:47 -07:00
page_isolation.c mm: split out internal page_alloc.h 2026-07-30 19:40:41 -07:00
page_owner.c mm: split out internal page_alloc.h 2026-07-30 19:40:41 -07:00
page_poison.c
page_reporting.c Merge branch 'mm-hotfixes-stable' into mm-stable in order to pick up 2026-08-04 19:15:12 -07:00
page_reporting.h
page_table_check.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
page_vma_mapped.c mm/page_vma_mapped: use huge_ptep_get() for hugetlb 2026-07-30 19:40:45 -07:00
page-writeback.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
pagewalk.c 8 hotfixes. 5 are cc:stable. 5 are for MM. 2026-08-20 20:05:59 -07:00
percpu-internal.h mm/percpu-internal.h: optimise pcpu_chunk struct to save memory 2026-06-02 15:22:13 -07:00
percpu-km.c mm/percpu-km: clear page->private before free them 2026-08-04 19:18:32 -07:00
percpu-stats.c
percpu-vm.c mm: split out vmalloc declarations from internal.h 2026-08-04 19:18:46 -07:00
percpu.c mm/percpu: avoid IO/FS reclaim in backing allocations 2026-07-28 21:11:47 -07:00
pgalloc-track.h
pgtable-generic.c mm: change to return bool for pmdp_clear_flush_young() 2026-04-05 13:53:35 -07:00
process_vm_access.c
ptdump.c mm/ptdump: always stabilise against page table freeing using init_mm 2026-08-04 20:02:00 -07:00
readahead.c block: split out a new blk_plug.h header 2026-08-04 06:57:05 -06:00
rmap.c mm/rmap: batch unmap file folios belonging to uffd-wp VMAs 2026-08-06 18:57:21 -07:00
rodata_test.c
secretmem.c mm/secretmem: don't allow highmem folios 2026-08-06 18:57:09 -07:00
shmem_quota.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
shmem.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
show_mem.c mm: split out internal page_alloc.h 2026-07-30 19:40:41 -07:00
shrinker_debug.c mm: shrinker: fix NULL pointer dereference in debugfs 2026-07-01 19:02:52 -07:00
shrinker.c mm: shrinker: fix shrinker_info teardown race with expansion 2026-07-01 19:02:52 -07:00
shuffle.c mm: split out internal page_alloc.h 2026-07-30 19:40:41 -07:00
shuffle.h
slab_common.c slab changes for 7.3 2026-08-24 10:58:57 -07:00
slab.h slab changes for 7.3 2026-08-24 10:58:57 -07:00
slub.c slab changes for 7.3 2026-08-24 10:58:57 -07:00
sparse-vmemmap.c mm: split out sparse declarations from internal.h 2026-08-04 19:18:46 -07:00
sparse.c mm: split out sparse declarations from internal.h 2026-08-04 19:18:46 -07:00
sparse.h mm: split out sparse declarations from internal.h 2026-08-04 19:18:46 -07:00
swap_state.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
swap_table.h mm, swap: merge zeromap into swap table 2026-06-02 15:22:23 -07:00
swap.h mm/swap: colocate page-cluster sysctl with swap readahead 2026-08-04 19:18:34 -07:00
swapfile.c 8 hotfixes. 5 are cc:stable. 5 are for MM. 2026-08-20 20:05:59 -07:00
truncate.c mm/truncate: use folio_split() in truncate_inode_partial_folio() 2026-06-21 11:37:16 -07:00
usercopy.c
userfaultfd.c mm/vma: use vma_start_pgoff(), linear_page_index() in mm code 2026-08-04 19:19:00 -07:00
util.c mm/vma: update do_mmap() to use vma_flags_t 2026-08-06 18:57:01 -07:00
vma_exec.c mm/vma: update create_init_stack_vma() to use vma_flags_t 2026-08-06 18:57:03 -07:00
vma_init.c mm/vma: correct incorrect vma.h inclusion 2026-08-04 19:19:04 -07:00
vma_internal.h mm/vma: correct incorrect vma.h inclusion 2026-08-04 19:19:04 -07:00
vma.c mm/vma: convert miscellaneous uses of VMA flags in core mm 2026-08-06 18:57:03 -07:00
vma.h mm/vma: rename vma_get_page_prot to vma_flags_to_page_prot 2026-08-06 18:57:02 -07:00
vmalloc.c mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
vmalloc.h mm: split out vmalloc declarations from internal.h 2026-08-04 19:18:46 -07:00
vmpressure.c mm/vmpressure: move v1 userspace eventfd code into memcontrol-v1.c 2026-07-30 19:40:28 -07:00
vmscan.c 8 hotfixes. 5 are cc:stable. 5 are for MM. 2026-08-20 20:05:59 -07:00
vmstat.c mm: move some stuff to mm/page_alloc.h 2026-07-30 19:40:41 -07:00
workingset.c mm/mglru: use folio_mark_accessed to replace folio_set_active 2026-06-04 14:45:02 -07:00
zpdesc.h
zsmalloc.c mm/zsmalloc: fix release order of locks in zs_page_migrate() 2026-08-06 18:57:26 -07:00
zswap.c mm, swap: add support for stable large allocation in swap cache directly 2026-06-02 15:22:21 -07:00