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51c656aef629bae94f2b07fcee7eabe280b905ea
Linux/lib
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Mel Gorman dbbee9d5cd mm/page_alloc: convert per-cpu list protection to local_lock 
There is a lack of clarity of what exactly
local_irq_save/local_irq_restore protects in page_alloc.c .  It conflates
the protection of per-cpu page allocation structures with per-cpu vmstat
deltas.

This patch protects the PCP structure using local_lock which for most
configurations is identical to IRQ enabling/disabling.  The scope of the
lock is still wider than it should be but this is decreased later.

It is possible for the local_lock to be embedded safely within struct
per_cpu_pages but it adds complexity to free_unref_page_list.

[[email protected]: coding style fixes]
[[email protected]: work around a pahole limitation with zero-sized struct pagesets]
  Link: https://lkml.kernel.org/r/[email protected]
[[email protected]: Make pagesets static]

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Mel Gorman <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Chuck Lever <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jesper Dangaard Brouer <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Sebastian Andrzej Siewior <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
2021-06-29 10:53:54 -07:00
..
842
kbuild: trace functions in subdirectories of lib/
2020-08-10 01:32:59 +09:00
crypto
crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c
2021-04-22 17:31:29 +10:00
dim
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
fonts
Fonts: font_ter16x32: Update font with new upstream Terminus release
2021-01-07 21:06:25 +01:00
kunit
kunit: make test->lock irq safe
2021-06-29 10:53:46 -07:00
livepatch
Merge tag 'kbuild-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2020-08-09 14:10:26 -07:00
lz4
lib/lz4: explicitly support in-place decompression
2020-12-15 22:46:16 -08:00
lzo
lib/lzo/lzo1x_compress.c: make lzogeneric1x_1_compress() static
2020-12-15 22:46:19 -08:00
math
Merge tag 'mips_5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2021-04-29 11:28:08 -07:00
mpi
lib/mpi: Remove unused scalar_copied
2020-10-30 17:34:45 +11:00
pldmfw
Add pldmfw library for PLDM firmware update
2020-07-28 17:07:06 -07:00
raid6
lib/raid6: Let $(UNROLL) rules work with macOS userland
2021-01-04 10:38:11 +09:00
reed_solomon
kbuild: trace functions in subdirectories of lib/
2020-08-10 01:32:59 +09:00
vdso
lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data()
2021-04-14 23:04:44 +10:00
xz
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
zlib_deflate
kbuild: trace functions in subdirectories of lib/
2020-08-10 01:32:59 +09:00
zlib_dfltcc
zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c
2020-12-29 15:36:49 -08:00
zlib_inflate
lib: Fix fall-through warnings for Clang
2020-11-19 07:23:47 -06:00
zstd
lib: Fix fall-through warnings for Clang
2020-11-19 07:23:47 -06:00
.gitignore
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
argv_split.c
…
ashldi3.c
…
ashrdi3.c
…
asn1_decoder.c
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
asn1_encoder.c
lib: Add ASN.1 encoder
2021-04-14 16:30:30 +03:00
assoc_array.c
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
atomic64_test.c
…
atomic64.c
…
audit.c
…
bcd.c
…
bch.c
lib/bch.c: fix a typo in the file bch.c
2021-05-06 19:24:12 -07:00
bitfield_kunit.c
lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE
2020-10-16 13:25:14 -06:00
bitmap.c
Merge tag 'gpio-updates-for-v5.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
2021-05-05 12:39:29 -07:00
bitrev.c
…
bootconfig.c
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
bsearch.c
…
btree.c
…
bucket_locks.c
…
bug.c
bug: Assign values once in bug_get_file_line()
2021-04-01 09:54:37 +01:00
build_OID_registry
…
buildid.c
bpf: Add size arg to build_id_parse function
2021-01-14 19:29:58 -08:00
bust_spinlocks.c
…
check_signature.c
…
checksum.c
unify generic instances of csum_partial_copy_nocheck()
2020-08-20 15:45:14 -04:00
clz_ctz.c
…
clz_tab.c
…
cmdline_kunit.c
lib/cmdline: Allow get_options() to take 0 to validate the input
2021-02-15 11:43:31 +01:00
cmdline.c
lib/cmdline: Export next_arg() for being used in modules
2021-05-05 16:07:40 +02:00
cmpdi2.c
…
compat_audit.c
…
cpu_rmap.c
…
cpumask.c
Revert "lib: Restrict cpumask_local_spread to houskeeping CPUs"
2021-02-05 23:28:29 +01:00
crc4.c
…
crc7.c
lib/crc7: fix a kernel-doc markup
2021-01-21 14:06:00 -07:00
crc8.c
lib: crc8: pointer to data block should be const
2021-05-06 19:24:12 -07:00
crc16.c
…
crc32.c
lib/crc32.c: fix trivial typo in preprocessor condition
2020-10-16 11:11:20 -07:00
crc32defs.h
…
crc32test.c
lib/crc32test: remove extra local_irq_disable/enable
2020-11-02 12:14:19 -08:00
crc64.c
lib: crc64: fix kernel-doc warning
2021-06-05 08:58:12 -07:00
crc-ccitt.c
…
crc-itu-t.c
…
crc-t10dif.c
…
ctype.c
…
debug_info.c
…
debug_locks.c
locking/lockdep: Improve noinstr vs errors
2021-06-22 13:56:43 +02:00
debugobjects.c
debugobjects: Free per CPU pool after CPU unplug
2020-10-01 16:13:54 +02:00
dec_and_lock.c
…
decompress_bunzip2.c
lib: decompress_bunzip2: delete duplicated words
2020-10-16 11:11:19 -07:00
decompress_inflate.c
…
decompress_unlz4.c
…
decompress_unlzma.c
lib: fix inconsistent indenting in process_bit1()
2021-05-06 19:24:12 -07:00
decompress_unlzo.c
…
decompress_unxz.c
…
decompress_unzstd.c
lib: decompress_unzstd: Limit output size
2020-09-03 10:13:09 +02:00
decompress.c
lib: Add zstd support to decompress
2020-07-31 11:49:08 +02:00
devmem_is_allowed.c
lib: Add a generic version of devmem_is_allowed()
2020-12-11 12:28:08 -08:00
devres.c
asm-generic/io.h: Add a non-posted variant of ioremap()
2021-04-08 20:18:38 +09:00
digsig.c
crypto: sha - split sha.h into sha1.h and sha2.h
2020-11-20 14:45:33 +11:00
dump_stack.c
printk: introduce dump_stack_lvl()
2021-06-29 10:53:52 -07:00
dynamic_debug.c
dyndbg: drop uninformative vpr_info
2021-05-13 20:50:23 +02:00
dynamic_queue_limits.c
lib: dynamic_queue_limits: delete duplicated words + fix typo
2020-10-16 11:11:20 -07:00
earlycpio.c
lib: remove "expecting prototype" kernel-doc warnings
2021-04-16 16:10:37 -07:00
errname.c
kernel.h: split out mathematical helpers
2020-12-15 22:46:15 -08:00
error-inject.c
fault-injection: handle EI_ETYPE_TRUE
2020-12-15 22:46:19 -08:00
errseq.c
kernel.h: split out mathematical helpers
2020-12-15 22:46:15 -08:00
extable.c
sparc32: switch to generic extables
2021-01-03 20:05:18 -05:00
fault-inject-usercopy.c
lib, include/linux: add usercopy failure capability
2020-10-16 11:11:22 -07:00
fault-inject.c
…
fdt_addresses.c
…
fdt_empty_tree.c
…
fdt_ro.c
…
fdt_rw.c
…
fdt_strerror.c
…
fdt_sw.c
…
fdt_wip.c
…
fdt.c
…
find_bit_benchmark.c
…
find_bit.c
lib: add fast path for find_first_*_bit() and find_last_bit()
2021-05-06 19:24:12 -07:00
flex_proportions.c
…
gen_crc32table.c
…
gen_crc64table.c
…
genalloc.c
lib/genalloc: add parameter description to fix doc compile warning
2021-05-06 19:24:12 -07:00
generic-radix-tree.c
…
glob.c
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
globtest.c
…
hexdump.c
kernel.h: split out min()/max() et al. helpers
2020-10-16 11:11:19 -07:00
hweight.c
…
idr.c
Merge tag 'xarray-5.9' of git://git.infradead.org/users/willy/xarray
2020-10-20 14:39:37 -07:00
inflate.c
…
interval_tree_test.c
…
interval_tree.c
…
iomap_copy.c
…
iomap.c
iomap: constify ioreadX() iomem argument (as in generic implementation)
2020-08-14 19:56:57 -07:00
iommu-helper.c
…
iov_iter.c
iov_iter: lift memzero_page() to highmem.h
2021-05-05 11:27:27 -07:00
irq_poll.c
…
irq_regs.c
…
is_single_threaded.c
…
kasprintf.c
…
Kconfig
lib: Add ASN.1 encoder
2021-04-14 16:30:30 +03:00
Kconfig.debug
mm/page_alloc: convert per-cpu list protection to local_lock
2021-06-29 10:53:54 -07:00
Kconfig.kasan
kasan: add memory corruption identification support for hardware tag-based mode
2021-06-29 10:53:53 -07:00
Kconfig.kcsan
kcsan: Make test follow KUnit style recommendations
2021-03-08 14:27:43 -08:00
Kconfig.kfence
kfence: await for allocation using wait_event
2021-05-05 11:27:27 -07:00
Kconfig.kgdb
kgdb: Honour the kprobe blocklist when setting breakpoints
2020-09-28 12:14:08 +01:00
Kconfig.ubsan
ubsan: remove overflow checks
2021-02-26 09:41:05 -08:00
kfifo.c
…
klist.c
…
kobject_uevent.c
kobject_uevent: remove warning in init_uevent_argv()
2021-04-10 11:09:41 +02:00
kobject.c
kobject: Drop unneeded conditional in __kobject_del()
2020-09-07 11:24:17 +02:00
kstrtox.c
lib: Fix fall-through warnings for Clang
2020-11-19 07:23:47 -06:00
kstrtox.h
…
libcrc32c.c
lib: libcrc32c: delete duplicated words
2020-10-16 11:11:19 -07:00
linear_ranges.c
lib/linear_ranges: fix repeated words & one typo
2020-12-28 12:24:47 +00:00
list_debug.c
…
list_sort.c
lib/list_sort.c: fix typo in function description
2021-05-06 19:24:12 -07:00
list-test.c
…
llist.c
…
locking-selftest-hardirq.h
…
locking-selftest-mutex.h
…
locking-selftest-rlock-hardirq.h
…
locking-selftest-rlock-softirq.h
…
locking-selftest-rlock.h
…
locking-selftest-rsem.h
…
locking-selftest-rtmutex.h
…
locking-selftest-softirq.h
…
locking-selftest-spin-hardirq.h
…
locking-selftest-spin-softirq.h
…
locking-selftest-spin.h
…
locking-selftest-wlock-hardirq.h
…
locking-selftest-wlock-softirq.h
…
locking-selftest-wlock.h
…
locking-selftest-wsem.h
…
locking-selftest.c
locking/selftests: Add local_lock inversion tests
2021-01-14 11:20:18 +01:00
lockref.c
…
logic_pio.c
PCI: Fix pci_register_io_range() memory leak
2021-02-17 17:31:06 -06:00
lru_cache.c
lib: remove "expecting prototype" kernel-doc warnings
2021-04-16 16:10:37 -07:00
lshrdi3.c
…
Makefile
mm/slub, kunit: add a KUnit test for SLUB debugging functionality
2021-06-29 10:53:46 -07:00
memcat_p.c
…
memory-notifier-error-inject.c
…
memregion.c
lib/memregion.c: include memregion.h
2020-09-26 10:33:57 -07:00
memweight.c
…
muldi3.c
…
net_utils.c
…
netdev-notifier-error-inject.c
…
nlattr.c
net: fix nla_strcmp to handle more then one trailing null character
2021-05-05 12:48:46 -07:00
nmi_backtrace.c
lib: Add backtrace_idle parameter to force backtrace of idle CPUs
2020-08-24 14:24:25 -07:00
nodemask.c
…
notifier-error-inject.c
…
notifier-error-inject.h
…
objagg.c
…
of-reconfig-notifier-error-inject.c
…
oid_registry.c
x509: Detect sm2 keys by their parameters OID
2021-03-26 19:41:58 +11:00
once.c
…
packing.c
lib: packing: add documentation for pbuflen argument
2020-06-28 20:45:27 -07:00
parman.c
lib: remove "expecting prototype" kernel-doc warnings
2021-04-16 16:10:37 -07:00
parser.c
lib: parser: clean up kernel-doc
2021-05-06 19:24:12 -07:00
pci_iomap.c
…
percpu_counter.c
lib/percpu_counter: tame kernel-doc compile warning
2021-05-06 19:24:12 -07:00
percpu_test.c
…
percpu-refcount.c
percpu_ref: Don't opencode percpu_ref_is_dying
2021-05-13 03:27:38 +00:00
plist.c
…
pm-notifier-error-inject.c
…
radix-tree.c
lib: remove "expecting prototype" kernel-doc warnings
2021-04-16 16:10:37 -07:00
random32.c
random32: add a selftest for the prandom32 code
2020-10-24 20:21:57 +02:00
ratelimit.c
…
rbtree_test.c
…
rbtree.c
lib/: replace HTTP links with HTTPS ones
2020-08-12 10:58:00 -07:00
refcount.c
…
rhashtable.c
rhashtable: Restore RCU marking on rhash_lock_head
2020-07-28 17:09:49 -07:00
sbitmap.c
scsi: sbitmap: Add sbitmap_calculate_shift() helper
2021-03-04 17:36:59 -05:00
scatterlist.c
lib/scatterlist: use consistent sg_copy_buffer() return type
2020-10-29 08:55:45 -06:00
seq_buf.c
…
sg_pool.c
…
sg_split.c
…
sha1.c
crypto: sha - split sha.h into sha1.h and sha2.h
2020-11-20 14:45:33 +11:00
show_mem.c
…
siphash.c
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
slub_kunit.c
mm/slub, kunit: add a KUnit test for SLUB debugging functionality
2021-06-29 10:53:46 -07:00
smp_processor_id.c
sched: Make migrate_disable/enable() independent of RT
2020-11-24 11:25:44 +01:00
sort.c
…
stackdepot.c
lib: stackdepot: turn depot_lock spinlock to raw_spinlock
2021-05-06 19:24:12 -07:00
stmp_device.c
…
string_helpers.c
lib: string_helpers: provide kfree_strarray()
2020-09-30 10:50:30 +02:00
string.c
lib/string: remove unnecessary #undefs
2020-12-15 22:46:16 -08:00
strncpy_from_user.c
lib/strncpy_from_user.c: Mask out bytes after NUL terminator.
2020-11-19 11:56:16 -08:00
strnlen_user.c
…
syscall.c
lib/syscall: fix syscall registers retrieval on 32-bit platforms
2020-12-03 09:52:44 -08:00
test_bitmap.c
lib: test_bitmap: add tests for "N" alias
2021-03-08 14:16:58 -08:00
test_bitops.c
lib/test_bitops: do the full test during module init
2020-08-12 10:57:59 -07:00
test_bits.c
lib/test_bits.c: add tests of GENMASK
2020-08-12 10:58:00 -07:00
test_blackhole_dev.c
…
test_bpf.c
test_bpf: Remove EXPECTED_FAIL flag from bpf_fill_maxinsns11
2021-01-20 14:13:48 -08:00
test_debug_virtual.c
…
test_firmware.c
lib: cleanup kstrto*() usage
2020-12-15 22:46:16 -08:00
test_fpu.c
selftests/fpu: Fix debugfs_simple_attr.cocci warning
2021-01-18 11:03:26 +01:00
test_free_pages.c
lib/test_free_pages.c: add basic progress indicators
2020-12-15 22:46:16 -08:00
test_hash.c
…
test_hexdump.c
…
test_hmm_uapi.h
mm/hmm: add tests for hmm_pfn_to_map_order()
2020-07-10 16:24:28 -03:00
test_hmm.c
lib/test_hmm: use vma_lookup() in dmirror_migrate()
2021-06-29 10:53:52 -07:00
test_ida.c
…
test_kasan_module.c
lib/test_kasan_module.c: suppress unused var warning
2021-04-09 14:54:23 -07:00
test_kasan.c
kasan: test: improve failure message in KUNIT_EXPECT_KASAN_FAIL()
2021-06-29 10:53:52 -07:00
test_kmod.c
lib: cleanup kstrto*() usage
2020-12-15 22:46:16 -08:00
test_linear_ranges.c
…
test_list_sort.c
treewide: Change list_sort to use const pointers
2021-04-08 16:04:22 -07:00
test_lockup.c
lib/test_lockup.c: minimum fix to get it compiled on PREEMPT_RT
2020-12-15 22:46:16 -08:00
test_memcat_p.c
…
test_meminit.c
…
test_min_heap.c
…
test_module.c
…
test_objagg.c
…
test_overflow.c
…
test_parman.c
…
test_printf.c
Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm
2021-04-28 10:01:40 -07:00
test_rhashtable.c
rhashtable: avoid -Wrestrict warning on overlapping sprintf output
2021-03-24 15:16:09 -07:00
test_siphash.c
…
test_sort.c
…
test_stackinit.c
…
test_static_key_base.c
…
test_static_keys.c
…
test_string.c
…
test_strscpy.c
…
test_sysctl.c
lib: test_sysctl: delete duplicated words
2020-10-16 11:11:20 -07:00
test_ubsan.c
ubsan: remove overflow checks
2021-02-26 09:41:05 -08:00
test_user_copy.c
…
test_uuid.c
…
test_vmalloc.c
lib/test_vmalloc.c: add a new 'nr_threads' parameter
2021-04-30 11:20:40 -07:00
test_xarray.c
XArray: Fix splitting to non-zero orders
2021-03-30 13:42:33 -04:00
test-kstrtox.c
…
test-string_helpers.c
lib/test-string_helpers.c: Add string_upper() and string_lower() tests
2020-07-15 12:45:06 +03:00
textsearch.c
…
timerqueue.c
rbtree, timerqueue: Use rb_add_cached()
2021-02-17 14:08:01 +01:00
ts_bm.c
lib/: replace HTTP links with HTTPS ones
2020-08-12 10:58:00 -07:00
ts_fsm.c
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
2020-11-18 14:15:17 -06:00
ts_kmp.c
…
ubsan.c
ubsan: remove overflow checks
2021-02-26 09:41:05 -08:00
ubsan.h
ubsan: implement __ubsan_handle_alignment_assumption
2021-02-05 11:03:47 -08:00
ucmpdi2.c
…
ucs2_string.c
…
usercopy.c
lib, uaccess: add failure injection to usercopy functions
2020-10-16 11:11:22 -07:00
uuid.c
…
vsprintf.c
slub: force on no_hash_pointers when slub_debug is enabled
2021-06-29 10:53:47 -07:00
win_minmax.c
…
xarray.c
XArray: Fix splitting to non-zero orders
2021-03-30 13:42:33 -04:00
xxhash.c
lib/: replace HTTP links with HTTPS ones
2020-08-12 10:58:00 -07:00