Revision 52e44129fba5cfc4e351fdb5e45849afc74d9a53 authored by Linus Torvalds on 10 April 2021, 19:51:12 UTC, committed by Linus Torvalds on 10 April 2021, 19:51:12 UTC
Pull percpu fix from Dennis Zhou: "This contains a fix for sporadically failing atomic percpu allocations. I only caught it recently while I was reviewing a new series [1] and simultaneously saw reports by btrfs in xfstests [2] and [3]. In v5.9, memcg accounting was extended to percpu done by adding a second type of chunk. I missed an interaction with the free page float count used to ensure we can support atomic allocations. If one type of chunk has no free pages, but the other has enough to satisfy the free page float requirement, we will not repopulate the free pages for the former type of chunk. This led to the sporadically failing atomic allocations" Link: https://lore.kernel.org/linux-mm/20210324190626.564297-1-guro@fb.com/ [1] Link: https://lore.kernel.org/linux-mm/20210401185158.3275.409509F4@e16-tech.com/ [2] Link: https://lore.kernel.org/linux-mm/CAL3q7H5RNBjCi708GH7jnczAOe0BLnacT9C+OBgA-Dx9jhB6SQ@mail.gmail.com/ [3] * 'for-5.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu: percpu: make pcpu_nr_empty_pop_pages per chunk type
File | Mode | Size |
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842 | ||
crypto | ||
dim | ||
fonts | ||
kunit | ||
livepatch | ||
lz4 | ||
lzo | ||
math | ||
mpi | ||
pldmfw | ||
raid6 | ||
reed_solomon | ||
vdso | ||
xz | ||
zlib_deflate | ||
zlib_dfltcc | ||
zlib_inflate | ||
zstd | ||
.gitignore | -rw-r--r-- | 116 bytes |
Kconfig | -rw-r--r-- | 15.7 KB |
Kconfig.debug | -rw-r--r-- | 82.9 KB |
Kconfig.kasan | -rw-r--r-- | 6.8 KB |
Kconfig.kcsan | -rw-r--r-- | 8.7 KB |
Kconfig.kfence | -rw-r--r-- | 3.0 KB |
Kconfig.kgdb | -rw-r--r-- | 5.6 KB |
Kconfig.ubsan | -rw-r--r-- | 6.3 KB |
Makefile | -rw-r--r-- | 11.8 KB |
argv_split.c | -rw-r--r-- | 2.1 KB |
ashldi3.c | -rw-r--r-- | 541 bytes |
ashrdi3.c | -rw-r--r-- | 565 bytes |
asn1_decoder.c | -rw-r--r-- | 13.2 KB |
assoc_array.c | -rw-r--r-- | 51.8 KB |
atomic64.c | -rw-r--r-- | 4.5 KB |
atomic64_test.c | -rw-r--r-- | 6.4 KB |
audit.c | -rw-r--r-- | 1.8 KB |
bcd.c | -rw-r--r-- | 297 bytes |
bch.c | -rw-r--r-- | 38.3 KB |
bitfield_kunit.c | -rw-r--r-- | 4.4 KB |
bitmap.c | -rw-r--r-- | 38.1 KB |
bitrev.c | -rw-r--r-- | 1.9 KB |
bootconfig.c | -rw-r--r-- | 19.0 KB |
bsearch.c | -rw-r--r-- | 1.2 KB |
btree.c | -rw-r--r-- | 19.2 KB |
bucket_locks.c | -rw-r--r-- | 1.4 KB |
bug.c | -rw-r--r-- | 5.8 KB |
build_OID_registry | -rwxr-xr-x | 4.5 KB |
buildid.c | -rw-r--r-- | 3.8 KB |
bust_spinlocks.c | -rw-r--r-- | 676 bytes |
check_signature.c | -rw-r--r-- | 635 bytes |
checksum.c | -rw-r--r-- | 4.1 KB |
clz_ctz.c | -rw-r--r-- | 1.2 KB |
clz_tab.c | -rw-r--r-- | 891 bytes |
cmdline.c | -rw-r--r-- | 5.8 KB |
cmdline_kunit.c | -rw-r--r-- | 4.2 KB |
cmpdi2.c | -rw-r--r-- | 501 bytes |
compat_audit.c | -rw-r--r-- | 832 bytes |
cpu_rmap.c | -rw-r--r-- | 7.6 KB |
cpumask.c | -rw-r--r-- | 7.1 KB |
crc-ccitt.c | -rw-r--r-- | 5.6 KB |
crc-itu-t.c | -rw-r--r-- | 2.7 KB |
crc-t10dif.c | -rw-r--r-- | 3.2 KB |
crc16.c | -rw-r--r-- | 2.7 KB |
crc32.c | -rw-r--r-- | 9.3 KB |
crc32defs.h | -rw-r--r-- | 1.6 KB |
crc32test.c | -rw-r--r-- | 37.4 KB |
crc4.c | -rw-r--r-- | 1003 bytes |
crc64.c | -rw-r--r-- | 1.8 KB |
crc7.c | -rw-r--r-- | 2.5 KB |
crc8.c | -rw-r--r-- | 2.4 KB |
ctype.c | -rw-r--r-- | 1.4 KB |
debug_info.c | -rw-r--r-- | 777 bytes |
debug_locks.c | -rw-r--r-- | 1.2 KB |
debugobjects.c | -rw-r--r-- | 35.3 KB |
dec_and_lock.c | -rw-r--r-- | 1.2 KB |
decompress.c | -rw-r--r-- | 1.8 KB |
decompress_bunzip2.c | -rw-r--r-- | 23.5 KB |
decompress_inflate.c | -rw-r--r-- | 4.8 KB |
decompress_unlz4.c | -rw-r--r-- | 4.0 KB |
decompress_unlzma.c | -rw-r--r-- | 15.8 KB |
decompress_unlzo.c | -rw-r--r-- | 6.4 KB |
decompress_unxz.c | -rw-r--r-- | 10.9 KB |
decompress_unzstd.c | -rw-r--r-- | 10.2 KB |
devmem_is_allowed.c | -rw-r--r-- | 687 bytes |
devres.c | -rw-r--r-- | 12.3 KB |
digsig.c | -rw-r--r-- | 5.5 KB |
dump_stack.c | -rw-r--r-- | 3.2 KB |
dynamic_debug.c | -rw-r--r-- | 27.9 KB |
dynamic_queue_limits.c | -rw-r--r-- | 4.3 KB |
earlycpio.c | -rw-r--r-- | 3.6 KB |
errname.c | -rw-r--r-- | 3.7 KB |
error-inject.c | -rw-r--r-- | 5.5 KB |
errseq.c | -rw-r--r-- | 6.6 KB |
extable.c | -rw-r--r-- | 2.9 KB |
fault-inject-usercopy.c | -rw-r--r-- | 823 bytes |
fault-inject.c | -rw-r--r-- | 5.9 KB |
fdt.c | -rw-r--r-- | 69 bytes |
fdt_addresses.c | -rw-r--r-- | 79 bytes |
fdt_empty_tree.c | -rw-r--r-- | 80 bytes |
fdt_ro.c | -rw-r--r-- | 72 bytes |
fdt_rw.c | -rw-r--r-- | 72 bytes |
fdt_strerror.c | -rw-r--r-- | 78 bytes |
fdt_sw.c | -rw-r--r-- | 72 bytes |
fdt_wip.c | -rw-r--r-- | 73 bytes |
find_bit.c | -rw-r--r-- | 4.5 KB |
find_bit_benchmark.c | -rw-r--r-- | 3.9 KB |
flex_proportions.c | -rw-r--r-- | 6.8 KB |
gen_crc32table.c | -rw-r--r-- | 3.3 KB |
gen_crc64table.c | -rw-r--r-- | 1.4 KB |
genalloc.c | -rw-r--r-- | 26.2 KB |
generic-radix-tree.c | -rw-r--r-- | 5.3 KB |
glob.c | -rw-r--r-- | 3.5 KB |
globtest.c | -rw-r--r-- | 4.2 KB |
hexdump.c | -rw-r--r-- | 7.4 KB |
hweight.c | -rw-r--r-- | 1.9 KB |
idr.c | -rw-r--r-- | 17.5 KB |
inflate.c | -rw-r--r-- | 38.7 KB |
interval_tree.c | -rw-r--r-- | 540 bytes |
interval_tree_test.c | -rw-r--r-- | 3.4 KB |
iomap.c | -rw-r--r-- | 9.1 KB |
iomap_copy.c | -rw-r--r-- | 2.2 KB |
iommu-helper.c | -rw-r--r-- | 755 bytes |
iov_iter.c | -rw-r--r-- | 44.3 KB |
irq_poll.c | -rw-r--r-- | 5.4 KB |
irq_regs.c | -rw-r--r-- | 394 bytes |
is_single_threaded.c | -rw-r--r-- | 1.2 KB |
kasprintf.c | -rw-r--r-- | 1.4 KB |
kfifo.c | -rw-r--r-- | 12.1 KB |
klist.c | -rw-r--r-- | 10.4 KB |
kobject.c | -rw-r--r-- | 28.2 KB |
kobject_uevent.c | -rw-r--r-- | 18.8 KB |
kstrtox.c | -rw-r--r-- | 10.4 KB |
kstrtox.h | -rw-r--r-- | 293 bytes |
libcrc32c.c | -rw-r--r-- | 2.0 KB |
linear_ranges.c | -rw-r--r-- | 7.2 KB |
list-test.c | -rw-r--r-- | 17.4 KB |
list_debug.c | -rw-r--r-- | 1.8 KB |
list_sort.c | -rw-r--r-- | 8.4 KB |
llist.c | -rw-r--r-- | 2.5 KB |
locking-selftest-hardirq.h | -rw-r--r-- | 246 bytes |
locking-selftest-mutex.h | -rw-r--r-- | 159 bytes |
locking-selftest-rlock-hardirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-rlock-softirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-rlock.h | -rw-r--r-- | 197 bytes |
locking-selftest-rsem.h | -rw-r--r-- | 202 bytes |
locking-selftest-rtmutex.h | -rw-r--r-- | 162 bytes |
locking-selftest-softirq.h | -rw-r--r-- | 246 bytes |
locking-selftest-spin-hardirq.h | -rw-r--r-- | 73 bytes |
locking-selftest-spin-softirq.h | -rw-r--r-- | 73 bytes |
locking-selftest-spin.h | -rw-r--r-- | 157 bytes |
locking-selftest-wlock-hardirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-wlock-softirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-wlock.h | -rw-r--r-- | 197 bytes |
locking-selftest-wsem.h | -rw-r--r-- | 202 bytes |
locking-selftest.c | -rw-r--r-- | 62.8 KB |
lockref.c | -rw-r--r-- | 4.5 KB |
logic_pio.c | -rw-r--r-- | 8.5 KB |
lru_cache.c | -rw-r--r-- | 18.8 KB |
lshrdi3.c | -rw-r--r-- | 559 bytes |
memcat_p.c | -rw-r--r-- | 753 bytes |
memory-notifier-error-inject.c | -rw-r--r-- | 1.1 KB |
memregion.c | -rw-r--r-- | 429 bytes |
memweight.c | -rw-r--r-- | 1.0 KB |
muldi3.c | -rw-r--r-- | 1.7 KB |
net_utils.c | -rw-r--r-- | 640 bytes |
netdev-notifier-error-inject.c | -rw-r--r-- | 1.5 KB |
nlattr.c | -rw-r--r-- | 26.9 KB |
nmi_backtrace.c | -rw-r--r-- | 3.1 KB |
nodemask.c | -rw-r--r-- | 653 bytes |
notifier-error-inject.c | -rw-r--r-- | 2.5 KB |
notifier-error-inject.h | -rw-r--r-- | 653 bytes |
objagg.c | -rw-r--r-- | 28.3 KB |
of-reconfig-notifier-error-inject.c | -rw-r--r-- | 1.3 KB |
oid_registry.c | -rw-r--r-- | 3.7 KB |
once.c | -rw-r--r-- | 1.4 KB |
packing.c | -rw-r--r-- | 6.6 KB |
parman.c | -rw-r--r-- | 10.6 KB |
parser.c | -rw-r--r-- | 8.6 KB |
pci_iomap.c | -rw-r--r-- | 4.2 KB |
percpu-refcount.c | -rw-r--r-- | 15.4 KB |
percpu_counter.c | -rw-r--r-- | 6.4 KB |
percpu_test.c | -rw-r--r-- | 3.2 KB |
plist.c | -rw-r--r-- | 5.9 KB |
pm-notifier-error-inject.c | -rw-r--r-- | 1.2 KB |
radix-tree.c | -rw-r--r-- | 43.1 KB |
random32.c | -rw-r--r-- | 18.5 KB |
ratelimit.c | -rw-r--r-- | 1.6 KB |
rbtree.c | -rw-r--r-- | 17.1 KB |
rbtree_test.c | -rw-r--r-- | 9.4 KB |
refcount.c | -rw-r--r-- | 4.8 KB |
rhashtable.c | -rw-r--r-- | 29.5 KB |
sbitmap.c | -rw-r--r-- | 16.1 KB |
scatterlist.c | -rw-r--r-- | 27.3 KB |
seq_buf.c | -rw-r--r-- | 9.9 KB |
sg_pool.c | -rw-r--r-- | 4.2 KB |
sg_split.c | -rw-r--r-- | 5.0 KB |
sha1.c | -rw-r--r-- | 6.3 KB |
show_mem.c | -rw-r--r-- | 1.1 KB |
siphash.c | -rw-r--r-- | 11.9 KB |
smp_processor_id.c | -rw-r--r-- | 1.5 KB |
sort.c | -rw-r--r-- | 8.4 KB |
stackdepot.c | -rw-r--r-- | 10.1 KB |
stmp_device.c | -rw-r--r-- | 1.9 KB |
string.c | -rw-r--r-- | 25.7 KB |
string_helpers.c | -rw-r--r-- | 14.5 KB |
strncpy_from_user.c | -rw-r--r-- | 3.9 KB |
strnlen_user.c | -rw-r--r-- | 3.3 KB |
syscall.c | -rw-r--r-- | 2.7 KB |
test-kstrtox.c | -rw-r--r-- | 17.3 KB |
test-string_helpers.c | -rw-r--r-- | 11.7 KB |
test_bitmap.c | -rw-r--r-- | 17.4 KB |
test_bitops.c | -rw-r--r-- | 2.5 KB |
test_bits.c | -rw-r--r-- | 1.8 KB |
test_blackhole_dev.c | -rw-r--r-- | 2.5 KB |
test_bpf.c | -rw-r--r-- | 160.4 KB |
test_debug_virtual.c | -rw-r--r-- | 981 bytes |
test_firmware.c | -rw-r--r-- | 27.7 KB |
test_fpu.c | -rw-r--r-- | 2.0 KB |
test_free_pages.c | -rw-r--r-- | 995 bytes |
test_hash.c | -rw-r--r-- | 6.3 KB |
test_hexdump.c | -rw-r--r-- | 6.3 KB |
test_hmm.c | -rw-r--r-- | 26.6 KB |
test_hmm_uapi.h | -rw-r--r-- | 2.3 KB |
test_ida.c | -rw-r--r-- | 4.3 KB |
test_kasan.c | -rw-r--r-- | 28.2 KB |
test_kasan_module.c | -rw-r--r-- | 3.4 KB |
test_kmod.c | -rw-r--r-- | 29.9 KB |
test_linear_ranges.c | -rw-r--r-- | 7.5 KB |
test_list_sort.c | -rw-r--r-- | 3.3 KB |
test_lockup.c | -rw-r--r-- | 16.3 KB |
test_memcat_p.c | -rw-r--r-- | 2.2 KB |
test_meminit.c | -rw-r--r-- | 9.7 KB |
test_min_heap.c | -rw-r--r-- | 4.3 KB |
test_module.c | -rw-r--r-- | 794 bytes |
test_objagg.c | -rw-r--r-- | 24.6 KB |
test_overflow.c | -rw-r--r-- | 22.3 KB |
test_parman.c | -rw-r--r-- | 11.2 KB |
test_printf.c | -rw-r--r-- | 16.6 KB |
test_rhashtable.c | -rw-r--r-- | 20.0 KB |
test_siphash.c | -rw-r--r-- | 7.5 KB |
test_sort.c | -rw-r--r-- | 870 bytes |
test_stackinit.c | -rw-r--r-- | 11.3 KB |
test_static_key_base.c | -rw-r--r-- | 1.6 KB |
test_static_keys.c | -rw-r--r-- | 5.6 KB |
test_string.c | -rw-r--r-- | 3.8 KB |
test_strscpy.c | -rw-r--r-- | 4.0 KB |
test_sysctl.c | -rw-r--r-- | 3.9 KB |
test_ubsan.c | -rw-r--r-- | 2.9 KB |
test_user_copy.c | -rw-r--r-- | 9.1 KB |
test_uuid.c | -rw-r--r-- | 3.4 KB |
test_vmalloc.c | -rw-r--r-- | 12.0 KB |
test_xarray.c | -rw-r--r-- | 46.8 KB |
textsearch.c | -rw-r--r-- | 9.3 KB |
timerqueue.c | -rw-r--r-- | 2.3 KB |
ts_bm.c | -rw-r--r-- | 5.1 KB |
ts_fsm.c | -rw-r--r-- | 10.4 KB |
ts_kmp.c | -rw-r--r-- | 4.1 KB |
ubsan.c | -rw-r--r-- | 9.9 KB |
ubsan.h | -rw-r--r-- | 1.8 KB |
ucmpdi2.c | -rw-r--r-- | 568 bytes |
ucs2_string.c | -rw-r--r-- | 2.5 KB |
usercopy.c | -rw-r--r-- | 2.2 KB |
uuid.c | -rw-r--r-- | 2.9 KB |
vsprintf.c | -rw-r--r-- | 83.4 KB |
win_minmax.c | -rw-r--r-- | 3.4 KB |
xarray.c | -rw-r--r-- | 58.5 KB |
xxhash.c | -rw-r--r-- | 12.7 KB |
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