linux/lib
Yury Norov 4ba281d5bd lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit()
test_find_first_bit() is intentionally sub-optimal, and may cause soft
lockup due to long time of run on some systems.  So decrease length of
bitmap to traverse to avoid lockup.

With the change below, time of test execution doesn't exceed 0.2 seconds
on my testing system.

Link: http://lkml.kernel.org/r/20180420171949.15710-1-ynorov@caviumnetworks.com
Fixes: 4441fca0a2 ("lib: test module for find_*_bit() functions")
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-05-11 17:28:45 -07:00
..
842
fonts
lz4
lzo
mpi lib/mpi: Fix umul_ppmm() for MIPS64r6 2017-12-22 19:39:09 +11:00
raid6 powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
reed_solomon
xz
zlib_deflate
zlib_inflate
zstd lib: zstd: clean up Makefile for simpler composite object handling 2018-03-26 02:01:27 +09:00
.gitignore
Kconfig lib: Add generic PIO mapping method 2018-03-21 17:18:34 -05:00
Kconfig.debug lib/Kconfig.debug: Debug Lockups and Hangs: keep SOFTLOCKUP options together 2018-04-11 10:28:35 -07:00
Kconfig.kasan kasan: rework Kconfig settings 2018-02-06 18:32:47 -08:00
Kconfig.kgdb
Kconfig.ubsan lib: add testing module for UBSAN 2018-04-11 10:28:35 -07:00
Makefile lib: add testing module for UBSAN 2018-04-11 10:28:35 -07:00
argv_split.c
ashldi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
ashrdi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
asn1_decoder.c ASN.1: check for error from ASN1_OP_END__ACT actions 2017-12-08 15:13:27 +00:00
assoc_array.c lib/assoc_array: Remove smp_read_barrier_depends() 2017-12-04 10:52:56 -08:00
atomic64.c
atomic64_test.c
audit.c
bcd.c
bch.c
bitmap.c lib: fix stall in __bitmap_parselist() 2018-04-05 21:36:21 -07:00
bitrev.c
bsearch.c
btree.c btree: avoid variable-length allocations 2018-03-14 16:55:29 -07:00
bucket_locks.c spinlock: Add library function to allocate spinlock buckets array 2017-12-11 09:58:39 -05:00
bug.c lib/bug.c: exclude non-BUG/WARN exceptions from report_bug() 2018-03-09 16:40:01 -08:00
build_OID_registry
bust_spinlocks.c
chacha20.c crypto: chacha20 - use rol32() macro from bitops.h 2018-01-12 23:03:01 +11:00
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmpdi2.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
compat_audit.c
cordic.c
cpu_rmap.c
cpumask.c lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
crc-ccitt.c lib/crc-ccitt: Add CCITT-FALSE CRC16 variant 2018-01-08 10:08:33 +00:00
crc-itu-t.c
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c debugobjects: Avoid another unused variable warning 2018-03-14 20:20:01 +01:00
dec_and_lock.c
decompress.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
devres.c devres: combine function devm_ioremap* 2018-03-15 18:08:55 +01:00
digsig.c
div64.c
dma-debug.c dma-debug: fix memory leak in debug_dma_alloc_coherent 2018-02-22 15:02:33 -08:00
dma-direct.c dma-direct: don't retry allocation for no-op GFP_DMA 2018-04-23 14:43:27 +02:00
dma-virt.c
dump_stack.c printk: move dump stack related code to lib/dump_stack.c 2018-03-15 13:25:36 +01:00
dynamic_debug.c
dynamic_queue_limits.c
earlycpio.c
error-inject.c error-injection: Add injectable error types 2018-01-12 17:33:38 -08:00
errseq.c errseq: Always report a writeback error once 2018-04-27 08:51:26 -04:00
extable.c
fault-inject.c
fdt.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
find_bit_benchmark.c lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit() 2018-05-11 17:28:45 -07:00
flex_array.c
flex_proportions.c
gcd.c
gen_crc32table.c
genalloc.c
glob.c
globtest.c
hexdump.c
hweight.c
idr.c idr: Fix handling of IDs above INT_MAX 2018-02-26 14:39:30 -05:00
inflate.c
int_sqrt.c lib: Add strongly typed 64bit int_sqrt 2018-02-04 10:17:21 +00:00
interval_tree.c
interval_tree_test.c
iomap.c
iomap_copy.c
iommu-common.c
iommu-helper.c
ioremap.c mm/vmalloc: add interfaces to free unmapped page table 2018-03-22 17:07:01 -07:00
iov_iter.c
irq_poll.c
irq_regs.c
is_single_threaded.c
jedec_ddr_data.c
kasprintf.c
kfifo.c kfifo: fix inaccurate comment 2018-03-27 11:15:42 +02:00
klist.c
kobject.c kobject: don't use WARN for registration failures 2018-04-23 13:14:55 +02:00
kobject_uevent.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
kstrtox.c
kstrtox.h
lcm.c
libcrc32c.c libcrc32c: Add crc32c_impl function 2018-03-26 15:09:38 +02:00
list_debug.c lib/list_debug.c: print unmangled addresses 2018-04-11 10:28:35 -07:00
list_sort.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
lockref.c lockref: Add lockref_put_not_zero 2018-04-12 09:41:19 -07:00
logic_pio.c lib: Add generic PIO mapping method 2018-03-21 17:18:34 -05:00
lru_cache.c
lshrdi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
memory-notifier-error-inject.c
memweight.c
muldi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
net_utils.c
netdev-notifier-error-inject.c
nlattr.c netlink: Relax attr validation for fixed length types 2017-12-07 14:00:57 -05:00
nmi_backtrace.c
nodemask.c
notifier-error-inject.c
notifier-error-inject.h
of-reconfig-notifier-error-inject.c
oid_registry.c 509: fix printing uninitialized stack memory when OID is empty 2017-12-08 15:13:28 +00:00
once.c
parman.c
parser.c
pci_iomap.c PCI: Add SPDX GPL-2.0 when no license was specified 2018-01-26 11:45:16 -06:00
percpu-refcount.c percpu_ref: Update doc to dissuade users from depending on internal RCU grace periods 2018-03-19 10:09:44 -07:00
percpu_counter.c
percpu_ida.c
percpu_test.c
plist.c
pm-notifier-error-inject.c
prime_numbers.c
radix-tree.c radix tree: use GFP_ZONEMASK bits of gfp_t for flags 2018-04-11 10:28:39 -07:00
random32.c
ratelimit.c
rational.c
rbtree.c lib/rbtree,drm/mm: add rbtree_replace_node_cached() 2017-12-14 16:00:48 -08:00
rbtree_test.c
reciprocal_div.c
refcount.c
rhashtable.c rhashtable: add schedule points 2018-03-31 23:25:39 -04:00
sbitmap.c sbitmap: use test_and_set_bit_lock()/clear_bit_unlock() 2018-02-28 12:23:35 -07:00
scatterlist.c lib/scatterlist: add sg_init_marker() helper 2018-03-30 22:50:15 +02:00
seq_buf.c
sg_pool.c
sg_split.c
sha1.c
sha256.c kernel/kexec_file.c: move purgatories sha256 to common code 2018-04-13 17:10:28 -07:00
show_mem.c
siphash.c
smp_processor_id.c lib: do not use print_symbol() 2018-01-05 15:24:00 +01:00
sort.c
stackdepot.c lib/stackdepot.c: use a non-instrumented version of memcmp() 2018-02-06 18:32:44 -08:00
stmp_device.c
string.c lib/strscpy: Shut up KASAN false-positives in strscpy() 2018-02-01 12:20:21 -08:00
string_helpers.c
strncpy_from_user.c
strnlen_user.c
swiotlb.c swiotlb: fix inversed DMA_ATTR_NO_WARN test 2018-05-02 14:48:55 +02:00
syscall.c
test-kstrtox.c
test-string_helpers.c
test_bitmap.c lib/test_bitmap.c: do not accidentally use stack VLA 2018-04-11 10:28:35 -07:00
test_bpf.c test_bpf: Fix NULL vs IS_ERR() check in test_skb_segment() 2018-03-29 14:33:29 -04:00
test_debug_virtual.c
test_firmware.c headers: untangle kmemleak.h from mm.h 2018-04-05 21:36:27 -07:00
test_hash.c
test_hexdump.c
test_kasan.c kasan: fix invalid-free test crashing the kernel 2018-04-11 10:28:32 -07:00
test_kmod.c lib/test_kmod.c: fix limit check on number of test devices created 2018-03-09 16:40:02 -08:00
test_list_sort.c
test_module.c
test_parman.c
test_printf.c printk: hash addresses printed with %p 2017-11-29 12:09:02 +11:00
test_rhashtable.c test_rhashtable: add test case for rhltable with duplicate objects 2018-03-07 10:44:03 -05:00
test_siphash.c
test_sort.c lib/test_sort.c: add module unload support 2018-02-06 18:32:45 -08:00
test_static_key_base.c
test_static_keys.c
test_string.c
test_sysctl.c
test_ubsan.c lib/test_ubsan.c: make test_ubsan_misaligned_access() static 2018-04-11 10:28:35 -07:00
test_user_copy.c treewide: simplify Kconfig dependencies for removed archs 2018-03-26 15:55:57 +02:00
test_uuid.c
textsearch.c textsearch: fix kernel-doc warnings and add kernel-api section 2018-04-16 18:53:13 -04:00
timerqueue.c timerqueue: Document return values of timerqueue_add/del() 2017-12-29 23:13:10 +01:00
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c lib/ubsan: remove returns-nonnull-attribute checks 2018-02-06 18:32:46 -08:00
ubsan.h lib/ubsan: remove returns-nonnull-attribute checks 2018-02-06 18:32:46 -08:00
ucmpdi2.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
ucs2_string.c
usercopy.c Fix misannotated out-of-line _copy_to_user() 2017-12-11 09:35:11 -05:00
uuid.c Documentation: add UUID/GUID to kernel-api 2017-12-11 15:03:08 -07:00
vsprintf.c proc: add seq_put_decimal_ull_width to speed up /proc/pid/smaps 2018-04-11 10:28:33 -07:00
win_minmax.c
xxhash.c