linux-stable/mm
Andrey Konovalov 1cc4cdb521 kasan: fix stack traces dependency for HW_TAGS
Currently, whether the alloc/free stack traces collection is enabled by
default for hardware tag-based KASAN depends on CONFIG_DEBUG_KERNEL.
The intention for this dependency was to only enable collection on slow
debug kernels due to a significant perf and memory impact.

As it turns out, CONFIG_DEBUG_KERNEL is not considered a debug option
and is enabled on many productions kernels including Android and Ubuntu.
As the result, this dependency is pointless and only complicates the
code and documentation.

Having stack traces collection disabled by default would make the
hardware mode work differently to to the software ones, which is
confusing.

This change removes the dependency and enables stack traces collection
by default.

Looking into the future, this default might makes sense for production
kernels, assuming we implement a fast stack trace collection approach.

Link: https://lkml.kernel.org/r/6678d77ceffb71f1cff2cf61560e2ffe7bb6bfe9.1612808820.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-09 17:26:44 -08:00
..
kasan kasan: fix stack traces dependency for HW_TAGS 2021-02-09 17:26:44 -08:00
backing-dev.c mm:backing-dev: use sysfs_emit in macro defining functions 2020-12-15 12:13:47 -08:00
balloon_compaction.c
cleancache.c
cma.c mm: cma: improve pr_debug log in cma_release() 2020-12-15 12:13:46 -08:00
cma.h mm: cma: use CMA_MAX_NAME to define the length of cma name array 2020-09-01 09:19:43 +02:00
cma_debug.c debugfs: make sure we can remove u32_array files cleanly 2020-07-10 13:54:00 -07:00
compaction.c mm, compaction: move high_pfn to the for loop scope 2021-02-05 11:03:47 -08:00
debug.c mm: memcontrol: Use helpers to read page's memcg data 2020-12-02 18:28:05 -08:00
debug_page_ref.c
debug_vm_pgtable.c mm/debug_vm_pgtable: avoid doing memory allocation with pgtable_t mapped. 2020-10-16 11:11:14 -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 mm/filemap: add missing mem_cgroup_uncharge() to __add_to_page_cache_locked() 2021-02-05 11:03:47 -08:00
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.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
gup_test.c mm/gup_test.c: mark gup_test_init as __init function 2020-12-15 12:13:38 -08:00
gup_test.h selftests/vm: gup_test: introduce the dump_pages() sub-test 2020-12-15 12:13:38 -08:00
highmem.c mm/highmem: prepare for overriding set_pte_at() 2021-01-24 10:34:52 -08:00
hmm.c mm: do page fault accounting in handle_mm_fault 2020-08-12 10:58:02 -07:00
huge_memory.c mm: thp: fix MADV_REMOVE deadlock on shmem THP 2021-02-05 11:03:47 -08:00
hugetlb.c mm: hugetlb: fix missing put_page in gather_surplus_pages() 2021-02-05 11:03:47 -08:00
hugetlb_cgroup.c hugetlb_cgroup: fix offline of hugetlb cgroup with reservations 2020-12-06 10:19:07 -08:00
hwpoison-inject.c mm,hwpoison-inject: don't pin for hwpoison_filter 2020-10-16 11:11:16 -07:00
init-mm.c mm/gup: prevent gup_fast from racing with COW during fork 2020-12-15 12:13:39 -08:00
internal.h mm, page_alloc: disable pcplists during memory offline 2020-12-15 12:13:43 -08:00
interval_tree.c
ioremap.c mm: move p?d_alloc_track to separate header file 2020-08-07 11:33:26 -07:00
Kconfig mm/Kconfig: fix spelling mistake "whats" -> "what's" 2020-12-19 11:25:41 -08:00
Kconfig.debug mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO 2020-12-15 12:13:46 -08:00
khugepaged.c mm: fix some spelling mistakes in comments 2020-12-15 22:46:19 -08:00
kmemleak.c mm/kmemleak: rely on rcu for task stack scanning 2020-10-13 18:38:27 -07:00
ksm.c mm: cleanup kstrto*() usage 2020-12-15 12:13:47 -08:00
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 mm,memory_failure: always pin the page in madvise_inject_error 2020-12-15 12:13:44 -08:00
Makefile mm: mmap_lock: add tracepoints around lock acquisition 2020-12-15 12:13:41 -08:00
mapping_dirty_helpers.c mm/mapping_dirty_helpers: enhance the kernel-doc markups 2020-12-15 12:13:41 -08:00
memblock.c memblock: do not start bottom-up allocations with kernel_end 2021-02-05 11:03:47 -08:00
memcontrol.c mm: memcg/slab: optimize objcg stock draining 2021-01-24 09:20:52 -08:00
memfd.c
memory-failure.c mm: fix page reference leak in soft_offline_page() 2021-01-24 10:34:52 -08:00
memory.c mm: generalise COW SMC TLB flushing race comment 2020-12-29 15:36:49 -08:00
memory_hotplug.c mm: memmap defer init doesn't work as expected 2020-12-29 15:36:49 -08:00
mempolicy.c mm: migrate: initialize err in do_migrate_pages 2021-01-12 18:12:54 -08:00
mempool.c kasan, mm: rename kasan_poison_kfree 2020-12-22 12:55:09 -08:00
memremap.c mm/mremap_pages: fix static key devmap_managed_key updates 2020-11-02 12:14:18 -08:00
memtest.c
migrate.c mm: migrate: do not migrate HugeTLB page whose refcount is one 2021-02-05 11:03:47 -08:00
mincore.c mm: factor find_get_incore_page out of mincore_page 2020-10-13 18:38:29 -07:00
mlock.c mm/lru: introduce relock_page_lruvec() 2020-12-15 14:48:04 -08:00
mm_init.c mm: fix fall-through warnings for Clang 2020-12-15 12:13:47 -08:00
mmap.c UAPI Changes: 2020-12-18 12:38:28 -08:00
mmap_lock.c mm: mmap_lock: add tracepoints around lock acquisition 2020-12-15 12:13:41 -08:00
mmu_gather.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
mmu_notifier.c mm: track mmu notifiers in fs_reclaim_acquire/release 2020-12-15 12:13:41 -08:00
mmzone.c mm/lru: replace pgdat lru_lock with lruvec lock 2020-12-15 14:48:04 -08:00
mprotect.c mm: Add 'mprotect' hook to struct vm_operations_struct 2020-11-17 14:36:14 +01:00
mremap.c mm/mremap.c: fix extent calculation 2020-12-29 15:36:49 -08:00
msync.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
nommu.c mm: cleanup: remove unused tsk arg from __access_remote_vm 2020-12-15 12:13:40 -08:00
oom_kill.c mm/oom_kill: change comment and rename is_dump_unreclaim_slabs() 2020-12-15 12:13:45 -08:00
page-writeback.c mm: make wait_on_page_writeback() wait for multiple pending writebacks 2021-01-05 11:33:00 -08:00
page_alloc.c Revert "mm: fix initialization of struct page for holes in memory layout" 2021-01-26 10:39:46 -08:00
page_counter.c mm/page_counter: use page_counter_read in page_counter_set_max 2020-12-15 12:13:40 -08:00
page_ext.c mm: fix some spelling mistakes in comments 2020-12-15 22:46:19 -08:00
page_idle.c mm: page_idle_get_page() does not need lru_lock 2020-12-15 14:48:03 -08:00
page_io.c mm: memcontrol: Use helpers to read page's memcg data 2020-12-02 18:28:05 -08:00
page_isolation.c mm/page_isolation: do not isolate the max order page 2020-12-15 12:13:45 -08:00
page_owner.c mm/page_owner: record timestamp and pid 2020-12-15 12:13:38 -08:00
page_poison.c kasan, mm: reset tags when accessing metadata 2020-12-22 12:55:08 -08:00
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/page_vma_mapped.c: add colon to fix kernel-doc markups error for check_pte 2020-12-15 12:13:41 -08:00
pagewalk.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
percpu-internal.h mm: memcg/percpu: account percpu memory to memory cgroups 2020-08-12 10:57:55 -07:00
percpu-km.c mm: memcg/percpu: account percpu memory to memory cgroups 2020-08-12 10:57:55 -07:00
percpu-stats.c mm: memcg/percpu: account percpu memory to memory cgroups 2020-08-12 10:57:55 -07:00
percpu-vm.c mm: memcg/percpu: account percpu memory to memory cgroups 2020-08-12 10:57:55 -07:00
percpu.c percpu: convert flexible array initializers to use struct_size() 2020-10-30 23:02:28 +00:00
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: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
process_vm_access.c mm/process_vm_access.c: include compat.h 2021-01-12 18:12:54 -08:00
ptdump.c kasan, arm64: expand CONFIG_KASAN checks 2020-12-22 12:55:08 -08:00
readahead.c mm: use limited read-ahead to satisfy read 2020-10-17 13:49:08 -06:00
rmap.c mm/lru: revise the comments of lru_lock 2020-12-15 14:48:04 -08:00
rodata_test.c mm/rodata_test.c: fix missing function declaration 2020-08-21 09:52:53 -07:00
shmem.c mm: shmem: convert shmem_enabled_show to use sysfs_emit_at 2020-12-15 12:13:47 -08:00
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.c mm: introduce debug_pagealloc_{map,unmap}_pages() helpers 2020-12-15 12:13:43 -08:00
slab.h Networking updates for 5.11 2020-12-15 13:22:29 -08:00
slab_common.c kasan, mm: allow cache merging with no metadata 2020-12-22 12:55:09 -08:00
slob.c mm: extract might_alloc() debug check 2020-12-15 12:13:41 -08:00
slub.c Revert "mm/slub: fix a memory leak in sysfs_slab_add()" 2021-01-28 09:05:44 -08:00
sparse-vmemmap.c mm/sparse: only sub-section aligned range would be populated 2020-08-07 11:33:27 -07:00
sparse.c mm/memory_hotplug: guard more declarations by CONFIG_MEMORY_HOTPLUG 2020-10-16 11:11:18 -07:00
swap.c mm/lru: introduce relock_page_lruvec() 2020-12-15 14:48:04 -08:00
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 mm: use sysfs_emit for struct kobject * uses 2020-12-15 12:13:47 -08:00
swapfile.c mm: fix a race on nr_swap_pages 2020-12-15 22:46:15 -08:00
truncate.c mm: fix kernel-doc markups 2020-12-15 12:13:47 -08:00
usercopy.c mm/usercopy.c: delete duplicated word 2020-08-12 10:57:58 -07:00
userfaultfd.c mm/vmscan: protect the workingset on anonymous LRU 2020-08-12 10:57:55 -07:00
util.c mm: introduce vma_set_file function v5 2020-11-19 10:36:36 +01:00
vmacache.c kernel: better document the use_mm/unuse_mm API contract 2020-06-10 19:14:18 -07:00
vmalloc.c mm/vmalloc.c: fix potential memory leak 2021-01-12 18:12:54 -08:00
vmpressure.c mm: vmpressure: use mem_cgroup_is_root API 2020-04-02 09:35:31 -07:00
vmscan.c mm: don't put pinned pages into the swap cache 2021-01-17 12:08:04 -08:00
vmstat.c arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL 2020-12-15 12:13:42 -08:00
workingset.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 14:55:10 -08:00
z3fold.c z3fold: remove preempt disabled sections for RT 2020-12-15 12:13:45 -08:00
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 mm/zsmalloc.c: rework the list_add code in insert_zspage() 2020-12-15 12:13:46 -08:00
zswap.c mm/zswap: move to use crypto_acomp API for hardware acceleration 2020-12-15 12:13:46 -08:00