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6815ef3195
android_kernel_samsung_sm8650/mm
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Kalesh Singh 6815ef3195 ANDROID: 16K: Use MADV_DONTNEED to save VMA padding pages. 
When performing LOAD segment extension, the dynamic linker knows what
portion of the VMA is padding. In order for the kernel to implement
mitigations that ensure app compatibility, the extent of the padding
must be made available to the kernel.

To achieve this, reuse MADV_DONTNEED on single VMAs to hint the padding
range to the kernel. This information is then stored in vm_flag bits.
This allows userspace (dynamic linker) to set the padding pages on the
VMA without a need for new out-of-tree UAPI.

Bug: 330117029
Bug: 327600007
Bug: 330767927
Bug: 328266487
Bug: 329803029
Change-Id: I3421de32ab38ad3cb0fbce73ecbd8f7314287cde
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
2024-05-02 22:14:25 +00:00
..
damon Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
kasan Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
kfence mm,kfence: decouple kfence from page granularity mapping judgement 2023-12-03 07:32:08 +01:00
kmsan UPSTREAM: mm: kmsan: handle alloc failures in kmsan_vmap_pages_range_noflush() 2023-05-31 15:20:12 +00:00
backing-dev.c writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs 2023-04-26 14:28:39 +02:00
balloon_compaction.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
bootmem_info.c bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem 2022-08-28 14:02:45 -07:00
cleancache.c ANDROID: Revert "mm: remove cleancache" 2023-04-26 17:01:50 +00:00
cma_debug.c mm/cma_debug: show complete cma name in debugfs directories 2022-09-11 20:25:50 -07:00
cma_sysfs.c
cma.c ANDROID: vendor_hooks: Export cma_alloc trace points 2024-03-08 04:04:18 +00:00
cma.h
compaction.c ANDROID: mm: vh for compaction begin/end 2023-10-17 18:15:01 +00:00
debug_page_ref.c
debug_vm_pgtable.c
debug.c UPSTREAM: mm: export dump_mm() 2023-06-07 14:24:58 +00:00
dmapool.c
early_ioremap.c
fadvise.c UPSTREAM: mm: support POSIX_FADV_NOREUSE 2023-04-12 16:02:15 +00:00
failslab.c mm: fix unexpected changes to {failslab|fail_page_alloc}.attr 2022-11-22 18:50:44 -08:00
filemap.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
folio-compat.c mm: remove try_to_free_swap() 2022-10-03 14:02:53 -07:00
frontswap.c frontswap: don't call ->init if no ops are registered 2022-09-26 12:14:34 -07:00
gup_test.c
gup_test.h
gup.c BACKPORT: mm: always expand the stack with the mmap write lock held 2023-07-27 11:47:21 +00:00
highmem.c highmem: fix kmap_to_page() for kmap_local_page() addresses 2022-10-12 18:51:51 -07:00
hmm.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
huge_memory.c BACKPORT: userfaultfd: use per-vma locks in userfaultfd operations 2024-04-22 18:09:14 +00:00
hugetlb_cgroup.c hugetlb_cgroup: use helper for_each_hstate and hstate_index 2022-09-11 20:25:53 -07:00
hugetlb_vmemmap.c mm: hugetlb_vmemmap: fix a race between vmemmap pmd split 2023-09-19 12:27:56 +02:00
hugetlb_vmemmap.h mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability 2022-08-08 18:06:43 -07:00
hugetlb.c This is the 6.1.68 stable release 2024-01-05 08:40:52 +00:00
hwpoison-inject.c mm/hwpoison: add __init/__exit annotations to module init/exit funcs 2022-10-03 14:03:05 -07:00
init-mm.c UPSTREAM: mm: add per-VMA lock and helper functions to control it 2023-06-07 14:24:59 +00:00
internal.h Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig BACKPORT: mm: introduce new 'lock_mm_and_find_vma()' page fault helper 2023-07-26 09:57:34 +00:00
Kconfig.debug Merge 6.1.34 into android14-6.1-lts 2023-06-14 19:49:28 +00:00
khugepaged.c BACKPORT: userfaultfd: UFFDIO_MOVE uABI 2024-04-22 18:09:14 +00:00
kmemleak.c BACKPORT: mm/kmemleak: fix UAF bug in kmemleak_scan() 2023-05-15 19:08:33 +00:00
ksm.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
list_lru.c
maccess.c mm: Fix copy_from_user_nofault(). 2023-06-28 11:12:17 +02:00
madvise.c ANDROID: 16K: Use MADV_DONTNEED to save VMA padding pages. 2024-05-02 22:14:25 +00:00
Makefile ANDROID: 16K: Introduce /sys/kernel/mm/pgsize_miration/enabled 2024-05-02 22:14:25 +00:00
mapping_dirty_helpers.c
memblock.c ANDROID: GKI: Export memblock_free to drivers 2023-03-01 21:29:20 +00:00
memcontrol.c FROMGIT: mm: memcg: don't periodically flush stats when memcg is disabled 2024-01-30 20:40:37 +00:00
memfd.c memfd: check for non-NULL file_seals in memfd_create() syscall 2023-06-28 11:12:27 +02:00
memory_hotplug.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
memory-failure.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
memory-tiers.c memory tier: release the new_memtier in find_create_memory_tier() 2023-03-10 09:34:27 +01:00
memory.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
mempolicy.c Merge 6.1.62 into android14-6.1-lts 2023-11-27 14:58:20 +00:00
mempool.c
memremap.c UPSTREAM: mm: introduce __vm_flags_mod and use it in untrack_pfn 2023-06-07 14:24:58 +00:00
memtest.c
migrate_device.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
migrate.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
mincore.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
mlock.c FROMGIT: mm: lock vma explicitly before doing vm_flags_reset and vm_flags_reset_once 2023-08-16 16:55:02 +00:00
mm_init.c mm: multi-gen LRU: groundwork 2022-09-26 19:46:09 -07:00
mm_slot.h mm: introduce common struct mm_slot 2022-10-03 14:02:43 -07:00
mmap_lock.c
mmap.c Merge branch 'android14-6.1' into branch 'android14-6.1-lts' 2024-01-11 08:06:52 +00:00
mmu_gather.c mm/khugepaged: fix GUP-fast interaction by sending IPI 2022-11-30 14:49:42 -08:00
mmu_notifier.c
mmzone.c ANDROID: mm: Create hooks for ZONE_MOVABLE allocs 2023-04-26 17:01:52 +00:00
mprotect.c FROMGIT: mm: lock vma explicitly before doing vm_flags_reset and vm_flags_reset_once 2023-08-16 16:55:02 +00:00
mremap.c UPSTREAM: mm/mremap: write-lock VMA while remapping it to a new address range 2023-06-07 14:25:00 +00:00
msync.c mm/msync: use vma_find() instead of vma linked list 2022-09-26 19:46:25 -07:00
nommu.c BACKPORT: mm: always expand the stack with the mmap write lock held 2023-07-27 11:47:21 +00:00
oom_kill.c BACKPORT: mm: update mark_victim tracepoints fields 2024-04-08 18:00:16 +00:00
page_alloc.c ANDROID: add reclaim tune parameter functions 2024-04-08 17:39:38 +00:00
page_counter.c mm: page_counter: remove unneeded atomic ops for low/min 2022-09-11 20:26:01 -07:00
page_ext.c ANDROID: mm: introduce page_pinner 2023-05-16 21:34:27 +00:00
page_idle.c
page_io.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
page_isolation.c BACKPORT: FROMGIT: mm: add alloc_contig_migrate_range allocation statistics 2024-03-13 16:15:27 +00:00
page_owner.c ANDROID: mm: Export page_owner_inited and __set_page_owner 2023-08-29 23:06:13 +00:00
page_pinner.c ANDROID: page_pinner: add missing page_pinner_put_page 2023-05-16 21:34:27 +00:00
page_poison.c
page_reporting.c ANDROID: KVM: arm64: balloon: Notify hyp before reporting free pages to host 2022-12-15 16:13:01 +00:00
page_reporting.h
page_table_check.c mm: page_table_check: Ensure user pages are not slab pages 2023-06-14 11:15:29 +02:00
page_vma_mapped.c mm/swap: add swp_offset_pfn() to fetch PFN from swap entry 2022-09-26 19:46:05 -07:00
page-writeback.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
pagewalk.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c ANDROID: mm: Export pcpu_nr_pages 2023-03-23 18:20:34 +00:00
pgalloc-track.h
pgsize_migration.c ANDROID: 16K: Use MADV_DONTNEED to save VMA padding pages. 2024-05-02 22:14:25 +00:00
pgtable-generic.c
process_vm_access.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
ptdump.c mm: pagewalk: Fix race between unmap and page walker 2022-09-03 10:13:13 -07:00
readahead.c Merge "Merge tag 'android14-6.1.68_r00' into branch 'android14-6.1'" into android14-6.1 2024-01-24 17:34:59 +00:00
rmap.c BACKPORT: userfaultfd: UFFDIO_MOVE uABI 2024-04-22 18:09:14 +00:00
rodata_test.c mm/rodata_test: use PAGE_ALIGNED() helper 2022-10-03 14:03:05 -07:00
secretmem.c UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
shmem.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
shrinker_debug.c mm: shrinkers: fix deadlock in shrinker debugfs 2023-02-22 12:59:46 +01:00
shuffle.c mm/shuffle: convert module_param_call to module_param_cb 2022-10-03 14:03:07 -07:00
shuffle.h
slab_common.c ANDROID: vendor_hooks: mm: add hook to count the number pages 2023-11-30 18:19:39 +00:00
slab.c Merge 6.1.22 into android14-6.1 2023-03-31 08:15:39 +00:00
slab.h ANDROID: mm: add get_each_object_track function 2023-03-23 18:21:15 +00:00
slob.c Merge branch 'slab/for-6.1/kmalloc_size_roundup' into slab/for-next 2022-09-29 11:30:55 +02:00
slub.c ANDROID: vendor_hooks: mm: add hook to count the number pages 2023-11-14 23:07:42 +00:00
sparse-vmemmap.c mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c 2022-08-08 18:06:42 -07:00
sparse.c
swap_cgroup.c mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled 2022-10-03 14:03:36 -07:00
swap_slots.c mm/swap: convert put_swap_page() to put_swap_folio() 2022-10-03 14:02:46 -07:00
swap_state.c FROMGIT: swap: remove remnants of polling from read_swap_cache_async 2023-07-19 18:48:39 +00:00
swap.c ANDROID: mm: lru_cache_disable skips lru cache drainnig 2023-12-06 18:54:20 +00:00
swap.h FROMGIT: swap: remove remnants of polling from read_swap_cache_async 2023-07-19 18:48:39 +00:00
swapfile.c ANDROID: vendor hooks: Add hooks to support bootloader based hibernation 2023-06-07 14:25:04 +00:00
truncate.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
usercopy.c mm: Fix copy_from_user_nofault(). 2023-06-28 11:12:17 +02:00
userfaultfd.c UPSTREAM: userfaultfd: fix deadlock warning when locking src and dst VMAs 2024-04-22 18:09:14 +00:00
util.c Merge tag 'android14-6.1.57_r00' into branch 'android14-6.1' 2023-11-27 16:18:59 +00:00
vmalloc.c This is the 6.1.53 stable release 2023-09-18 09:57:37 +00:00
vmpressure.c net-memcg: Fix scope of sockmem pressure indicators 2023-09-13 09:42:33 +02:00
vmscan.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
vmstat.c UPSTREAM: mm: introduce per-VMA lock statistics 2023-06-07 14:25:01 +00:00
workingset.c Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1" 2024-04-02 19:49:12 +00:00
z3fold.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
zbud.c
zpool.c
zsmalloc.c Merge 6.1.47 into android14-6.1-lts 2023-09-13 19:35:46 +00:00
zswap.c zswap: do not shrink if cgroup may not zswap 2023-06-21 16:00:54 +02:00