Lorenzo Stoakes 8876dc0780 mm/vma: remove mmap_action->success_hook ...

This hook was introduced to work around code that seemed to absolutely
require access to a VMA pointer upon mmap().

However, providing this hook leaves a backdoor to drivers getting access
to the very thing mmap_prepare eliminates - a pointer to the VMA.

Let's solve this contradiction by removing it.  The key intended user was
hugetlb, however it seems that the best course now is to avoid allowing
all drivers the ability to work around mmap_prepare, and find a different
solution there.

Link: https://lore.kernel.org/f79434e6d30af6d92999be6b76e197f1847105fa.1780397980.git.ljs@kernel.org
Signed-off-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jann Horn <jannh@google.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2026-06-04 14:45:00 -07:00

..

damon

mm/damon/core: clarify next_intervals_tune_sis update path

2026-06-02 15:22:34 -07:00

kasan

kasan: fix bug type classification for SW_TAGS mode

2026-04-05 13:53:18 -07:00

kfence

mm/kfence: use special gfp_t format specifier

2026-05-28 21:04:52 -07:00

kmsan

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

tests

sparc/mm: export symbols for lazy_mmu_mode KUnit tests

2026-01-31 14:22:40 -08:00

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

bootmem_info.c

mm/bootmem_info: stop marking mem_section_usage as MIX_SECTION_INFO

2026-06-02 15:22:11 -07:00

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

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

cma.c

mm/cma: fix reserved page leak on activation failure

2026-05-28 20:50:34 -07:00

cma.h

mm: cma: set early_pfn and bitmap as a union in cma_memrange

2025-05-22 14:55:36 -07:00

compaction.c

mm/page_alloc: don't overload migratetype in find_suitable_fallback()

2026-06-02 15:22:19 -07:00

debug_page_alloc.c

mm/debug_page_alloc: improve error message for invalid guardpage minorder

2025-05-12 23:50:38 -07:00

debug_page_ref.c

…

debug_vm_pgtable.c

mm/debug_vm_pgtable: replace WRITE_ONCE() with pxd_clear()

2026-04-05 13:53:11 -07:00

debug.c

mm: constify __dump_folio() arguments

2025-11-20 13:43:57 -08:00

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

docs: dma-api: replace consistent with coherent

2025-07-01 13:25:36 -06:00

early_ioremap.c

mm/early_ioremap: clean up the use of WARN() for debugging

2026-01-26 20:02:26 -08:00

execmem.c

mm/execmem: make the populate and alloc atomic

2026-04-05 13:53:34 -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/filemap: fix page_cache_prev_miss() when no hole is found

2026-06-02 15:22:18 -07:00

folio-compat.c

mm: add SPDX id lines to some mm source files

2026-02-06 15:47:16 -08:00

gup_test.c

mm: add SPDX id lines to some mm source files

2026-02-06 15:47:16 -08:00

gup_test.h

…

gup.c

mm/gup: cleanup pgtable entry accessors

2026-05-28 21:04:41 -07:00

highmem.c

mm/highmem: fix __kmap_to_page() build error

2026-01-31 14:22:38 -08:00

hmm.c

mm/hmm: Indicate that HMM requires DMA coherency

2026-03-20 12:05:56 +01:00

huge_memory.c

mm/memcg, swap: tidy up cgroup v1 memsw swap helpers

2026-06-02 15:22:22 -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_cma: restrict hugetlb_cma parameter to gigantic-page alignment

2026-06-02 15:22:16 -07:00

hugetlb_cma.h

mm: hugetlb: allocate frozen pages for gigantic allocation

2026-01-26 20:02:28 -08:00

hugetlb_internal.h

mm/hugetlb: extract sysctl into hugetlb_sysctl.c

2025-11-20 13:43:57 -08:00

hugetlb_sysctl.c

mm, hugetlb: implement movable_gigantic_pages sysctl

2026-01-20 19:24:50 -08:00

hugetlb_sysfs.c

mm/hugetlb: extract sysfs into hugetlb_sysfs.c

2025-11-20 13:43:57 -08:00

hugetlb_vmemmap.c

mm/hugetlb_vmemmap: fix incorrect vmemmap restore in rollback

2026-05-31 21:50:24 -07:00

hugetlb_vmemmap.h

mm/hugetlb: do pre-HVO for bootmem allocated pages

2025-03-16 22:06:29 -07:00

hugetlb.c

Merge branch 'mm-hotfixes-stable' into mm-stable to pick up the series

2026-06-02 15:06:49 -07:00

hwpoison-inject.c

mm/hwpoison: decouple hwpoison_filter from mm/memory-failure.c

2025-09-21 14:22:21 -07:00

init-mm.c

mm: rename cpu_bitmap field to flexible_array

2026-01-19 12:30:00 -08:00

internal.h

mm/memcg: remove no longer used swap cgroup array

2026-06-02 15:22:23 -07:00

interval_tree.c

mm/memory: simplify calculation in unmap_mapping_range_tree()

2026-04-05 13:53:13 -07:00

ioremap.c

mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long

2025-03-16 22:06:23 -07:00

Kconfig

powerpc/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE

2026-06-02 15:22:12 -07:00

Kconfig.debug

mm: kmemleak: add CONFIG_DEBUG_KMEMLEAK_VERBOSE build option

2026-04-18 00:10:48 -07:00

khugepaged.c

mm/khugepaged: fix inconsistent MMF_VM_HUGEPAGE flag due to allocation failure order

2026-06-02 15:22:14 -07:00

kmemleak.c

mm/kmemleak: dedupe verbose scan output by allocation backtrace

2026-05-28 21:05:09 -07:00

ksm.c

mm: convert do_brk_flags() to use vma_flags_t

2026-04-05 13:53:40 -07:00

list_lru.c

ttm/pool: port to list_lru. (v2)

2026-04-08 06:52:47 +10:00

maccess.c

mm: unexport globally copy_to_kernel_nofault

2025-07-09 22:42:22 -07:00

madvise.c

mm/madvise: reject invalid process_madvise() advice for zero-length vectors

2026-05-28 21:04:57 -07:00

Makefile

mm/memcg: remove no longer used swap cgroup array

2026-06-02 15:22:23 -07:00

mapping_dirty_helpers.c

mm/dirty: replace READ_ONCE() with pudp_get()

2025-11-16 17:27:58 -08:00

memblock.c

Merge tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-19 08:01:17 -07:00

memcontrol-v1.c

mm/memcg: remove no longer used swap cgroup array

2026-06-02 15:22:23 -07:00

memcontrol-v1.h

mm: memcontrol: prepare for reparenting non-hierarchical stats

2026-04-18 00:10:47 -07:00

memcontrol.c

mm/memcg: remove no longer used swap cgroup array

2026-06-02 15:22:23 -07:00

memfd_luo.c

mm/memfd_luo: document preservation of file seals

2026-05-04 14:03:16 +00:00

memfd.c

memfd: deny writeable mappings when implying SEAL_WRITE

2026-05-21 19:06:11 -07:00

memory_hotplug.c

drivers/base/memory: make memory block get/put explicit

2026-06-02 15:22:12 -07:00

memory-failure.c

mm/memory-failure: use zone_pcp_disable() for poison handling

2026-06-02 15:22:33 -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, swap: merge zeromap into swap table

2026-06-02 15:22:23 -07:00

mempolicy.c

Merge tag 'mm-hotfixes-stable-2026-04-19-00-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-19 14:45:37 -07:00

mempool.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

memremap.c

mm/sparse-vmemmap: pass @pgmap argument to memory deactivation paths

2026-05-28 21:04:54 -07:00

memtest.c

mm/memtest: add underflow detection for size calculation

2026-01-09 11:53:51 +02:00

migrate_device.c

mm/migrate_device: cleanup up PMD Checks and warnings

2026-05-28 21:04:47 -07:00

migrate.c

mm/migrate: rename PAGE_ migration flags to FOLIO_

2026-05-28 21:05:00 -07:00

mincore.c

mm: replace remaining pte_to_swp_entry() with softleaf_from_pte()

2025-11-24 15:08:52 -08:00

mlock.c

mm: rename unlock_page_lruvec_irq and its variants

2026-04-18 00:10:44 -07:00

mm_init.c

mm: introduce for_each_free_list()

2026-06-02 15:22:19 -07:00

mm_slot.h

…

mmap_lock.c

mm/vma: improve and document __is_vma_write_locked()

2026-01-31 14:22:51 -08:00

mmap.c

mm: fix mmap errno value when MAP_DROPPABLE is not supported

2026-05-28 21:04:48 -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

Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-15 12:59:16 -07:00

mmzone.c

mm: introduce memdesc_flags_t

2025-09-13 16:55:07 -07:00

mprotect.c

mm/mprotect: special-case small folios when applying permissions

2026-04-18 00:10:55 -07:00

mremap.c

mm: convert do_brk_flags() to use vma_flags_t

2026-04-05 13:53:40 -07:00

mseal.c

mm/mseal: use min/max in mseal_apply

2026-06-02 15:22:15 -07:00

msync.c

…

nommu.c

mm: abstract reading sysctl_max_map_count, and READ_ONCE()

2026-04-05 13:53:28 -07:00

numa_emulation.c

mm: numa,memblock: Use SZ_1M macro to denote bytes to MB conversion

2025-08-20 16:31:23 +03:00

numa_memblks.c

Merge tag 'fixes-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

2026-02-21 09:58:22 -08:00

numa.c

mm/numa: remove unnecessary local variable in alloc_node_data()

2025-05-12 23:50:38 -07:00

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 defrag_mode for non-reclaimable allocations

2026-06-04 14:44:59 -07:00

page_counter.c

page_counter: track failcnt only for legacy cgroups

2025-03-17 00:05:35 -07:00

page_ext.c

mm/page_ext: Add page_ext_get_from_phys()

2026-01-21 12:51:48 +01:00

page_frag_cache.c

…

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

mm, swap: merge zeromap into swap table

2026-06-02 15:22:23 -07:00

page_isolation.c

mm: use zone lock guard in set_migratetype_isolate()

2026-05-28 21:05:05 -07:00

page_owner.c

mm/page_owner: fix %pGp format specifier argument type

2026-05-28 21:04:48 -07:00

page_poison.c

…

page_reporting.c

mm/page_reporting: change page_reporting_order to PAGE_REPORTING_ORDER_UNSPECIFIED

2026-04-05 13:53:17 -07:00

page_reporting.h

…

page_table_check.c

mm/page_table_check: Pass mm_struct to pxx_user_accessible_page()

2026-03-13 00:07:47 +01:00

page_vma_mapped.c

mm: centralize+fix comments about compound_mapcount() in new sync_with_folio_pmd_zap()

2026-04-05 13:53:03 -07:00

page-writeback.c

mm: start background writeback based on per-wb threshold for strictlimit BDIs

2026-04-27 05:54:24 -07:00

pagewalk.c

mm/pagewalk: fix race between concurrent split and refault

2026-04-05 13:53:37 -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/mm/percpu-km: drop nth_page() usage within single allocation

2025-09-21 14:22:04 -07:00

percpu-stats.c

mm: remove outdated filename comment in percpu-stats.c

2025-07-13 16:38:23 -07:00

percpu-vm.c

kmsan: remove hard-coded GFP_KERNEL flags

2025-11-16 17:27:54 -08:00

percpu.c

mm: memcontrol: return root object cgroup for root memory cgroup

2026-04-18 00:10:44 -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: replace READ_ONCE() with standard page table accessors

2025-11-16 17:27:52 -08:00

readahead.c

mm/readahead: no PG_readahead on EOF

2026-06-02 15:22:16 -07:00

rmap.c

mm: remove page_mapped()

2026-05-28 21:04:57 -07:00

rodata_test.c

…

secretmem.c

mm: rename VMA flag helpers to be more readable

2026-04-05 13:53:18 -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, swap: unify large folio allocation

2026-06-02 15:22:21 -07:00

show_mem.c

mm: add gpu active/reclaim per-node stat counters (v2)

2026-04-08 06:52:47 +10:00

shrinker_debug.c

memcg: rename mem_cgroup_ino() to mem_cgroup_id()

2026-01-26 20:02:25 -08:00

shrinker.c

mm/shrinker: simplify shrinker_memcg_alloc() using guard()

2026-06-02 15:22:17 -07:00

shuffle.c

…

shuffle.h

…

slab_common.c

mm/slub: hold cpus_read_lock around flush_rcu_sheaves_on_cache()

2026-05-14 14:56:58 +02:00

slab.h

Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-15 12:59:16 -07:00

slub.c

Merge tag 'slab-for-7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

2026-05-22 06:23:56 -07:00

sparse-vmemmap.c

mm/sparse-vmemmap: fix DAX vmemmap accounting with optimization

2026-05-28 21:04:54 -07:00

sparse.c

mm/sparse: remove sparse buffer pre-allocation mechanism

2026-05-28 21:04:49 -07:00

swap_state.c

mm, swap: merge zeromap into swap table

2026-06-02 15:22:23 -07:00

swap_table.h

mm, swap: merge zeromap into swap table

2026-06-02 15:22:23 -07:00

swap.c

mm/lruvec: preemptively free dead folios during lru_add drain

2026-05-28 21:04:52 -07:00

swap.h

mm, swap: merge zeromap into swap table

2026-06-02 15:22:23 -07:00

swapfile.c

mm, swap: merge zeromap into swap table

2026-06-02 15:22:23 -07:00

truncate.c

Merge tag 'mm-hotfixes-stable-2026-04-19-00-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-19 14:45:37 -07:00

usercopy.c

usercopy: Remove folio references from check_heap_object()

2025-11-13 11:01:08 +01:00

userfaultfd.c

userfaultfd: remove redundant check in vm_uffd_ops()

2026-05-31 21:50:26 -07:00

util.c

mm/vma: remove mmap_action->success_hook

2026-06-04 14:45:00 -07:00

vma_exec.c

mm: convert do_brk_flags() to use vma_flags_t

2026-04-05 13:53:40 -07:00

vma_init.c

Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-10-02 18:18:33 -07:00

vma_internal.h

mm: relocate the page table ceiling and floor definitions

2026-02-12 15:42:53 -08:00

vma.c

drivers/char/mem: eliminate unnecessary use of success_hook

2026-06-04 14:44:59 -07:00

vma.h

mm: allow handling of stacked mmap_prepare hooks in more drivers

2026-04-05 13:53:44 -07:00

vmalloc.c

mm/vmalloc: free unused pages on vrealloc() shrink

2026-06-02 15:22:32 -07:00

vmpressure.c

mm/vmpressure: skip socket pressure for costly order reclaim

2026-05-28 21:04:50 -07:00

vmscan.c

mm/memcg, swap: store cgroup id in cluster table directly

2026-06-02 15:22:23 -07:00

vmstat.c

Merge tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-19 08:01:17 -07:00

workingset.c

mm: workingset: use lruvec_lru_size() to get the number of lru pages

2026-04-18 00:10:47 -07:00

zpdesc.h

mm: zpdesc: minor naming and comment corrections

2025-09-21 14:21:59 -07:00

zsmalloc.c

mm/zsmalloc: copy KMSAN metadata in zs_page_migrate()

2026-04-05 13:53:34 -07:00

zswap.c

mm, swap: add support for stable large allocation in swap cache directly

2026-06-02 15:22:21 -07:00