mirror/android_kernel_fxtec_sm6115
3
0
Fork 0
mirror of https://github.com/LineageOS/android_kernel_fxtec_sm6115.git synced 2026-08-18 15:51:07 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
03e50cecb0224c093455e62de1d2b00a3aa8fd40
android_kernel_fxtec_sm6115/mm
History
David Hildenbrand (Red Hat) e505a4dba6 mm/rmap: fix two comments related to huge_pmd_unshare() 
commit a8682d500f691b6dfaa16ae1502d990aeb86e8be upstream.

PMD page table unsharing no longer touches the refcount of a PMD page
table.  Also, it is not about dropping the refcount of a "PMD page" but
the "PMD page table".

Let's just simplify by saying that the PMD page table was unmapped,
consequently also unmapping the folio that was mapped into this page.

This code should be deduplicated in the future.

Link: https://lkml.kernel.org/r/20251223214037.580860-4-david@kernel.org
Fixes: 59d9094df3d7 ("mm: hugetlb: independent PMD page table shared count")
Signed-off-by: David Hildenbrand (Red Hat) <david@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Cc: Liu Shixin <liushixin2@huawei.com>
Cc: Harry Yoo <harry.yoo@oracle.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: "Uschakow, Stanislav" <suschako@amazon.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
(cherry picked from commit a8682d500f691b6dfaa16ae1502d990aeb86e8be)
[ David: We don't have 40549ba8f8e0 ("hugetlb: use new vma_lock
  for pmd sharing synchronization") and a98a2f0c8ce1 ("mm/rmap: split
  migration into its own so changes in mm/rmap.c looks quite different. ]
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>
2026-05-07 10:55:26 +02:00
..
kasan
panic: Consolidate open-coded panic_on_warn checks
2023-02-06 07:49:46 +01:00
backing-dev.c
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
2021-12-14 10:18:05 +01:00
balloon_compaction.c
…
bootmem.c
…
cleancache.c
…
cma_debug.c
mm/cma_debug.c: fix the break condition in cma_maxchunk_get()
2019-06-15 11:54:01 +02:00
cma.c
mm/cma.c: fail if fixed declaration can't be honored
2019-08-06 19:06:51 +02:00
cma.h
…
compaction.c
mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
2024-04-13 12:50:12 +02:00
debug_page_ref.c
…
debug.c
…
dmapool.c
…
early_ioremap.c
…
fadvise.c
…
failslab.c
…
filemap.c
mm: fs: initialize fsdata passed to write_begin/write_end interface
2022-11-25 17:40:29 +01:00
frame_vector.c
v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() fails
2022-12-08 11:18:32 +01:00
frontswap.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
gup_benchmark.c
mm/gup_benchmark.c: prevent integer overflow in ioctl
2019-12-01 09:17:07 +01:00
gup.c
gup: document and work around "COW can break either way" issue
2021-04-28 13:16:51 +02:00
highmem.c
…
hmm.c
mm/memory_hotplug: shrink zones when offlining memory
2020-01-29 16:43:27 +01:00
huge_memory.c
mm/huge_memory: fix dereferencing invalid pmd migration entry
2025-07-17 10:08:05 +02:00
hugetlb_cgroup.c
mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
2019-11-20 18:45:20 +01:00
hugetlb.c
mm/hugetlb: fix two comments related to huge_pmd_unshare()
2026-05-07 10:55:26 +02:00
hwpoison-inject.c
…
init-mm.c
…
internal.h
mm/thp: fix vma_address() if virtual address below file offset
2021-07-11 12:49:28 +02:00
interval_tree.c
…
Kconfig
mm/hmm: select mmu notifier when selecting HMM
2019-06-15 11:54:00 +02:00
Kconfig.debug
…
khugepaged.c
mm/khugepaged: fix ->anon_vma race
2025-10-16 12:15:38 +02:00
kmemleak-test.c
…
kmemleak.c
Revert "mm: kmemleak: take a full lowmem check in kmemleak_*_phys()"
2022-09-15 12:17:02 +02:00
ksm.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
list_lru.c
mm: list_lru: set shrinker map bit when child nr_items is not zero
2020-12-11 13:25:02 +01:00
maccess.c
uaccess: Add non-pagefault user-space write function
2020-09-09 19:04:29 +02:00
madvise.c
…
Makefile
…
memblock.c
memblock: use kfree() to release kmalloced memblock regions
2022-03-02 11:38:14 +01:00
memcontrol.c
memcg_write_event_control(): fix a user-triggerable oops
2024-09-04 13:12:59 +02:00
memfd.c
memfd: fix F_SEAL_WRITE after shmem huge page allocated
2022-03-08 19:04:10 +01:00
memory_hotplug.c
mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()
2021-09-22 11:48:12 +02:00
memory-failure.c
mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory
2025-10-16 12:15:32 +02:00
memory.c
x86/mm/pat: fix VM_PAT handling in COW mappings
2024-04-13 12:50:17 +02:00
mempolicy.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
mempool.c
…
memtest.c
memtest: use {READ,WRITE}_ONCE in memory scanning
2024-04-13 12:50:07 +02:00
migrate.c
mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize()
2025-10-16 12:15:38 +02:00
mincore.c
…
mlock.c
mm/mlock.c: change count_mm_mlocked_page_nr return type
2019-07-10 09:53:40 +02:00
mm_init.c
…
mmap.c
mm: Fix TLB flush for not-first PFNMAP mappings in unmap_region()
2022-09-20 12:26:48 +02:00
mmu_context.c
…
mmu_notifier.c
mm/mmu_notifier: use hlist_add_head_rcu()
2019-07-31 07:27:08 +02:00
mmzone.c
…
mprotect.c
mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa
2020-03-11 14:15:00 +01:00
mremap.c
mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
2022-04-15 14:15:05 +02:00
msync.c
…
nobootmem.c
…
nommu.c
x86/mm: split vmalloc_sync_all()
2020-03-25 08:06:13 +01:00
oom_kill.c
mm: update mark_victim tracepoints fields
2025-04-04 11:11:27 +02:00
page_alloc.c
mm, page_alloc, thp: prevent reclaim for __GFP_THISNODE THP allocations
2026-04-12 13:56:50 +08:00
page_counter.c
mm/page_counter.c: fix protection usage propagation
2020-08-21 11:05:33 +02:00
page_ext.c
…
page_idle.c
mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
2019-07-03 13:14:45 +02:00
page_io.c
mm: fix unexpected zeroed page mapping with zram swap
2022-05-12 12:20:25 +02:00
page_isolation.c
…
page_owner.c
mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
2019-10-29 09:19:58 +01:00
page_poison.c
…
page_vma_mapped.c
mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()
2021-07-11 12:49:30 +02:00
page-writeback.c
mm: fix ratelimit_pages update error in dirty_ratio_handler()
2025-07-17 10:08:02 +02:00
pagewalk.c
mm: pagewalk: fix termination condition in walk_pte_range()
2020-10-01 13:14:32 +02:00
percpu-internal.h
…
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
pgtable-generic.c
mm/thp: fix __split_huge_pmd_locked() on shmem migration entry
2021-07-11 12:49:27 +02:00
process_vm_access.c
…
quicklist.c
…
readahead.c
vfs: fix readahead(2) on block devices
2023-11-20 10:29:16 +01:00
rmap.c
mm/rmap: fix two comments related to huge_pmd_unshare()
2026-05-07 10:55:26 +02:00
rodata_test.c
…
shmem.c
mm: revert "mm: shmem: fix data-race in shmem_getattr()"
2024-12-05 10:59:29 +01:00
slab_common.c
mm: slab: fix kmem_cache_create failed when sysfs node not destroyed
2021-07-28 11:13:44 +02:00
slab.c
mm/slab.c: fix an infinite loop in leaks_show()
2019-06-15 11:54:01 +02:00
slab.h
mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
2021-11-26 11:36:23 +01:00
slob.c
…
slub.c
mm/slub: avoid accessing metadata when pointer is invalid in object_err()
2025-10-16 12:15:29 +02:00
sparse-vmemmap.c
…
sparse.c
mm/sparse: add the missing sparse_buffer_fini() in error branch
2021-05-22 10:59:38 +02:00
swap_cgroup.c
…
swap_slots.c
…
swap_state.c
mm/swap_state: fix a data race in swapin_nr_pages
2020-10-01 13:14:47 +02:00
swap.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
swapfile.c
mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()
2023-04-20 12:04:39 +02:00
truncate.c
mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()
2021-07-11 12:49:28 +02:00
usercopy.c
mm/usercopy: return 1 from hardened_usercopy __setup() handler
2022-04-15 14:14:59 +02:00
userfaultfd.c
userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb
2024-03-01 13:06:08 +01:00
util.c
random: move randomize_page() into mm where it belongs
2022-06-25 11:49:12 +02:00
vmacache.c
…
vmalloc.c
mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()
2020-06-03 08:19:49 +02:00
vmpressure.c
mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
2019-10-17 13:45:19 -07:00
vmscan.c
mm: add missing release barrier on PGDAT_RECLAIM_LOCKED unlock
2025-06-04 11:49:03 +02:00
vmstat.c
mm, vmstat: drop zone->lock in /proc/pagetypeinfo
2021-06-03 08:38:02 +02:00
workingset.c
…
z3fold.c
…
zbud.c
…
zpool.c
…
zsmalloc.c
mm/zsmalloc: do not pass __GFP_MOVABLE if CONFIG_COMPACTION=n
2025-09-16 13:55:20 +02:00
zswap.c
…