linux/mm
Vlastimil Babka 791f85d16d UPSTREAM: mm, slub: allocate private object map for debugfs listings
Slub has a static spinlock protected bitmap for marking which objects are on
freelist when it wants to list them, for situations where dynamically
allocating such map can lead to recursion or locking issues, and on-stack
bitmap would be too large.

The handlers of debugfs files alloc_traces and free_traces also currently use this
shared bitmap, but their syscall context makes it straightforward to allocate a
private map before entering locked sections, so switch these processing paths
to use a private bitmap.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>

Bug: 209932470
(cherry picked from commit b3fd64e145)
Change-Id: I5fbf34e0d828d1c8b5e81e3679f81b70ce1fc8bc
Signed-off-by: Yee Lee <yee.lee@mediatek.com>
2021-12-14 20:24:23 +00:00
..
kasan UPSTREAM: arm64: kasan: mte: use a constant kernel GCR_EL1 value 2021-10-01 09:39:35 -07:00
kfence UPSTREAM: kfence: use TASK_IDLE when awaiting allocation 2021-08-27 12:26:09 -07:00
backing-dev.c bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag 2020-09-24 13:43:39 -06:00
balloon_compaction.c mm/balloon_compaction: suppress allocation warnings 2019-09-04 07:42:01 -04:00
cleancache.c
cma_debug.c FROMLIST: mm: cma: introduce gfp flag in cma_alloc instead of no_warn 2021-01-25 12:21:02 -08:00
cma_sysfs.c ANDROID: make cma_sysfs experimental 2021-03-25 19:20:18 +00:00
cma.c ANDROID: mm: cma: disable LRU cache early 2021-10-20 17:33:35 +00:00
cma.h ANDROID: GKI: add OEM data in cma struct 2021-06-04 11:15:16 -07:00
compaction.c UPSTREAM: mm/compaction: correct deferral logic for proactive compaction 2021-07-21 22:18:24 +00:00
debug_page_ref.c
debug_vm_pgtable.c mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage() 2021-07-14 16:56:13 +02:00
debug.c ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
dmapool.c mm/dmapool.c: replace hard coded function name with __func__ 2020-10-13 18:38:32 -07:00
early_ioremap.c mm/early_ioremap.c: use %pa to print resource_size_t variables 2020-01-31 10:30:38 -08:00
fadvise.c mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED 2020-10-13 18:38:29 -07:00
failslab.c
filemap.c ANDROID: mm: unlock the page on speculative fault retry 2021-09-14 17:43:45 +00:00
frame_vector.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
frontswap.c mm/frontswap: mark various intentional data races 2020-08-14 19:56:56 -07:00
gup_benchmark.c mm/gup_benchmark: take the mmap lock around GUP 2020-10-18 09:27:09 -07:00
gup.c UPSTREAM: mm/gup: remove the vma allocation from gup_longterm_locked() 2021-12-09 19:39:42 +00:00
highmem.c mm/highmem.c: clean up endif comments 2020-10-16 11:11:18 -07:00
hmm.c mm: do page fault accounting in handle_mm_fault 2020-08-12 10:58:02 -07:00
huge_memory.c This is the 5.10.53 stable release 2021-07-25 15:37:14 +02:00
hugetlb_cgroup.c hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings 2021-03-30 14:31:54 +02:00
hugetlb.c This is the 5.10.50 stable release 2021-07-14 17:35:23 +02:00
hwpoison-inject.c mm,hwpoison-inject: don't pin for hwpoison_filter 2020-10-16 11:11:16 -07:00
init-mm.c FROMLIST: mm: protect mm_rb tree with a rwlock 2021-01-22 18:00:57 +00:00
internal.h Linux 5.10.47 2021-06-30 19:38:46 +02:00
interval_tree.c
ioremap.c mm: move p?d_alloc_track to separate header file 2020-08-07 11:33:26 -07:00
Kconfig FROMLIST: mm: cma: support sysfs 2021-03-25 19:20:09 +00:00
Kconfig.debug ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
khugepaged.c This is the 5.10.50 stable release 2021-07-14 17:35:23 +02:00
kmemleak.c UPSTREAM: kasan, kmemleak: reset tags when scanning block 2021-08-30 07:02:08 +00:00
ksm.c Merge 5.10.38 into android12-5.10 2021-05-20 15:35:25 +02:00
list_lru.c mm: list_lru: set shrinker map bit when child nr_items is not zero 2020-12-06 10:19:07 -08:00
maccess.c uaccess: add force_uaccess_{begin,end} helpers 2020-08-12 10:57:59 -07:00
madvise.c FROMLIST: mm/madvise: add MADV_WILLNEED to process_madvise() 2021-08-16 15:13:13 +00:00
Makefile ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
mapping_dirty_helpers.c mm/mapping_dirty_helpers: update huge page-table entry callbacks 2020-04-02 09:35:29 -07:00
memblock.c This is the 5.10.54 stable release 2021-07-28 15:23:47 +02:00
memcontrol.c This is the 5.10.50 stable release 2021-07-14 17:35:23 +02:00
memfd.c mm: page cache: store only head pages in i_pages 2019-09-24 15:54:08 -07:00
memory_hotplug.c ANDROID: mm/memory_hotplug: Don't special case memory_block_size_bytes 2021-12-14 19:04:06 +00:00
memory-failure.c mm,hwpoison: return -EBUSY when migration fails 2021-07-19 09:44:56 +02:00
memory.c ANDROID: Fix mmu_notifier imbalance 2021-11-01 16:47:30 +00:00
mempolicy.c FROMLIST: mm: replace migrate_[prep|finish] with lru_cache_[disable|enable] 2021-03-23 04:05:24 +00:00
mempool.c FROMGIT: kasan: use separate (un)poison implementation for integrated init 2021-06-17 14:39:37 -07:00
memremap.c mm: fix memory_failure() handling of dax-namespace metadata 2021-03-04 11:38:21 +01:00
memtest.c
migrate.c Linux 5.10.47 2021-06-30 19:38:46 +02:00
mincore.c mm: factor find_get_incore_page out of mincore_page 2020-10-13 18:38:29 -07:00
mlock.c ANDROID: mm: page_pinner: unattribute follow_page in munlock_vma_pages_range 2021-04-30 09:13:35 -07:00
mm_init.c mm: adjust vm_committed_as_batch according to vm overcommit policy 2020-08-07 11:33:26 -07:00
mmap.c ANDROID: vendor_hooks: Add hook in mmap_region() 2021-09-06 16:51:38 +08:00
mmu_gather.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
mmu_notifier.c mm/mmu_notifiers: ensure range_end() is paired with range_start() 2021-03-30 14:32:06 +02:00
mmzone.c ANDROID: mm: export zone_watermark_ok 2021-02-25 19:36:38 +00:00
mprotect.c FROMGIT: mm: improve mprotect(R|W) efficiency on pages referenced once 2021-06-15 19:33:15 +00:00
mremap.c UPSTREAM: mm/mremap: fix BUILD_BUG_ON() error in get_extent 2021-10-21 08:33:12 -07:00
msync.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
nommu.c ANDROID: mm: allow vmas with vm_ops to be speculatively handled 2021-04-23 18:42:39 -07:00
oom_kill.c ANDROID: signal: Add vendor hook for memory reaping 2021-06-03 20:59:15 +00:00
page_alloc.c This is the 5.10.64 stable release 2021-09-12 09:17:13 +02:00
page_counter.c mm/page_counter: correct the obsolete func name in the comment of page_counter_try_charge() 2020-10-13 18:38:30 -07:00
page_ext.c ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
page_idle.c mm/page_idle.c: skip offline pages 2020-06-08 11:05:55 -07:00
page_io.c UPSTREAM: mm/page_io: use pr_alert_ratelimited for swap read/write errors 2021-03-30 18:44:11 +00:00
page_isolation.c ANDROID: mm: cma: skip problematic pageblock 2021-07-14 11:54:49 -07:00
page_owner.c ANDROID: mm: Make page_owner_enabled global 2021-04-01 00:09:00 +00:00
page_pinner.c Revert "ANDROID: mm: page_pinner: use EXPORT_SYMBOL_GPL" 2021-09-23 23:47:26 +00:00
page_poison.c UPSTREAM: kasan: fix conflict with page poisoning 2021-07-19 20:39:17 +00:00
page_reporting.c mm: rename page_order() to buddy_order() 2020-10-16 11:11:19 -07:00
page_reporting.h mm: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
page_vma_mapped.c mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk() 2021-06-30 08:47:29 -04:00
page-writeback.c ANDROID: vendor_hooks: add hook to balance_dirty_pages() 2021-05-20 19:38:42 +00:00
pagewalk.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
percpu-internal.h percpu: make pcpu_nr_empty_pop_pages per chunk type 2021-04-14 08:42:03 +02:00
percpu-km.c mm: memcg/percpu: account percpu memory to memory cgroups 2020-08-12 10:57:55 -07:00
percpu-stats.c percpu: make pcpu_nr_empty_pop_pages per chunk type 2021-04-14 08:42:03 +02:00
percpu-vm.c mm: memcg/percpu: account percpu memory to memory cgroups 2020-08-12 10:57:55 -07:00
percpu.c Merge 5.10.30 into android12-5.10 2021-04-15 14:23:41 +02:00
pgalloc-track.h mm: move p?d_alloc_track to separate header file 2020-08-07 11:33:26 -07:00
pgtable-generic.c mm/thp: fix __split_huge_pmd_locked() on shmem migration entry 2021-06-30 08:47:26 -04:00
process_vm_access.c mm/process_vm_access.c: include compat.h 2021-01-19 18:27:21 +01:00
ptdump.c This is the 5.10.32 stable release 2021-04-22 11:12:08 +02:00
readahead.c ANDROID: mm: Create vendor hooks to control ZONE_MOVABLE allocations 2020-12-01 18:07:54 +00:00
rmap.c Merge branch 'android12-5.10' into android12-5.10-lts 2021-09-13 18:12:07 +02:00
rodata_test.c mm/rodata_test.c: fix missing function declaration 2020-08-21 09:52:53 -07:00
shmem.c This is the 5.10.53 stable release 2021-07-25 15:37:14 +02:00
shuffle.c mm: rename page_order() to buddy_order() 2020-10-16 11:11:19 -07:00
shuffle.h mm/shuffle: remove dynamic reconfiguration 2020-08-07 11:33:29 -07:00
slab_common.c Merge tag 'android12-5.10.66_r00' into android12-5.10 2021-10-21 09:45:02 +02:00
slab.c Merge 5.10.37 into android12-5.10 2021-05-15 09:28:55 +02:00
slab.h Merge branch 'android12-5.10' into android12-5.10-lts 2021-07-22 13:32:27 +02:00
slob.c mm: memcg: convert vmstat slab counters to bytes 2020-08-07 11:33:24 -07:00
slub.c UPSTREAM: mm, slub: allocate private object map for debugfs listings 2021-12-14 20:24:23 +00:00
sparse-vmemmap.c mm/sparse: only sub-section aligned range would be populated 2020-08-07 11:33:27 -07:00
sparse.c mm/sparse: add the missing sparse_buffer_fini() in error branch 2021-05-14 09:50:45 +02:00
swap_cgroup.c mm: memcontrol: make swap tracking an integral part of memory control 2020-06-03 20:09:48 -07:00
swap_slots.c mm/swap_slots.c: remove always zero and unused return value of enable_swap_slots_cache() 2020-10-13 18:38:30 -07:00
swap_state.c FROMLIST: mm: protect VMA modifications using VMA sequence count 2021-01-22 17:59:47 +00:00
swap.c BACKPORT: UPSTREAM: mm: fs: invalidate bh_lrus for only cold path 2021-09-27 17:48:37 -07:00
swapfile.c Merge branch 'android12-5.10' into android12-5.10-lts 2021-07-13 15:00:50 +02:00
truncate.c mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page() 2021-06-30 08:47:27 -04:00
usercopy.c mm/usercopy.c: delete duplicated word 2020-08-12 10:57:58 -07:00
userfaultfd.c FROMGIT: userfaultfd/shmem: modify shmem_mfill_atomic_pte to use install_pte() 2021-06-04 19:13:10 +00:00
util.c ANDROID: android: export kernel function arch_mmap_rnd 2021-07-09 20:51:14 +00:00
vmacache.c kernel: better document the use_mm/unuse_mm API contract 2020-06-10 19:14:18 -07:00
vmalloc.c UPSTREAM: mm: vmalloc: prevent use after free in _vm_unmap_aliases 2021-11-09 17:29:42 +00:00
vmpressure.c FROMLIST: mm, memcg: add mem_cgroup_disabled checks in vmpressure and swap-related functions 2021-07-12 18:26:15 -07:00
vmscan.c Linux 5.10.61 2021-08-27 20:51:37 +02:00
vmstat.c ANDROID: mm: allow vmas with vm_ops to be speculatively handled 2021-04-23 18:42:39 -07:00
workingset.c XArray updates for 5.9 2020-10-20 14:39:37 -07:00
z3fold.c mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page 2021-07-14 16:56:51 +02:00
zbud.c mm/zbud: remove redundant initialization 2020-10-13 18:38:34 -07:00
zpool.c mm/zpool.c: delete duplicated word and fix grammar 2020-08-12 10:57:58 -07:00
zsmalloc.c This is the 5.10.21 stable release 2021-03-07 12:53:30 +01:00
zswap.c mm/zswap: allow setting default status, compressor and allocator in Kconfig 2020-04-07 10:43:41 -07:00