Yu-Jen Chang c3712312e9 FROMLIST: lib/string.c: Optimize memchr() ... The original version of memchr() is implemented with the byte-wise comparing technique, which does not fully use 64-bits or 32-bits registers in CPU. We use word-wide comparing so that 8 characters can be compared at the same time on CPU. This code is base on David Laight's implementation. We create two files to measure the performance. The first file contains on average 10 characters ahead the target character. The second file contains at least 1000 characters ahead the target character. Our implementation of “memchr()” is slightly better in the first test and nearly 4x faster than the orginal implementation in the second test. Signed-off-by: Yu-Jen Chang <arthurchang09@gmail.com> Signed-off-by: Ching-Chun (Jim) Huang <jserv@ccns.ncku.edu.tw> Change-Id: I188000c90c2b7b30ae31799f426578418fe529a4		2022-11-12 11:22:40 +00:00
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842
crypto
fonts
lz4	BACKPORT: lz4: fix LZ4_decompress_safe_partial read out of bound	2022-11-12 11:21:39 +00:00
lzo	lib/lzo: fix ambiguous encoding bug in lzo-rle	2022-11-12 11:19:25 +00:00
mpi
raid6
reed_solomon
vdso
xz
zlib_deflate
zlib_inflate
zstd
.gitignore
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
assoc_array.c
atomic64_test.c
atomic64.c
audit.c
bcd.c
bch.c
bitmap.c
bitrev.c
bsearch.c
btree.c
bucket_locks.c
bug.c
build_OID_registry
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmpdi2.c
compat_audit.c
cordic.c
cpu_rmap.c
cpumask.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c	BACKPORT: lib/crc32: Make crc32_be weak for arch override	2022-11-12 11:21:39 +00:00
crc32defs.h
crc32test.c
crc64.c
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c
dec_and_lock.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress.c
devres.c
digsig.c
div64.c
dump_stack.c
dynamic_debug.c	This is the 4.19.262 stable release	2022-10-30 16:23:17 +01:00
dynamic_queue_limits.c
earlycpio.c
error-inject.c
errseq.c
extable.c
fault-inject.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
flex_array.c
flex_proportions.c
gcd.c
gen_crc32table.c
gen_crc64table.c
genalloc.c
glob.c
globtest.c
hexdump.c
hweight.c
idr.c
inflate.c
int_sqrt.c
interval_tree_test.c
interval_tree.c
iomap_copy.c
iomap.c
iommu-helper.c
ioremap.c
iov_iter.c
irq_poll.c
irq_regs.c
is_single_threaded.c
jedec_ddr_data.c
kasprintf.c
Kconfig
Kconfig.debug
Kconfig.kasan
Kconfig.kgdb
Kconfig.ubsan
kfifo.c
klist.c
kobject_uevent.c
kobject.c
kstrtox.c
kstrtox.h
lcm.c
libcrc32c.c
list_debug.c	lib/list_debug.c: Detect uninitialized lists	2022-08-25 11:15:45 +02:00
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
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile
memory-notifier-error-inject.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c
nmi_backtrace.c
nodemask.c
notifier-error-inject.c
notifier-error-inject.h
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c	once: add DO_ONCE_SLOW() for sleepable contexts	2022-10-26 13:19:26 +02:00
parman.c
parser.c
pci_iomap.c
percpu_counter.c
percpu_test.c
percpu-refcount.c
plist.c
pm-notifier-error-inject.c
prime_numbers.c
radix-tree.c
random32.c
ratelimit.c	ratelimit: Fix data-races in ___ratelimit().	2022-09-05 10:26:30 +02:00
rational.c
rbtree_test.c
rbtree.c
reciprocal_div.c
refcount.c
rhashtable.c
sbitmap.c
scatterlist.c
seq_buf.c
sg_pool.c
sg_split.c
sha1.c
sha256.c
show_mem.c
siphash.c
smp_processor_id.c
sort.c
stackdepot.c
stmp_device.c
string_helpers.c
string.c	FROMLIST: lib/string.c: Optimize memchr()	2022-11-12 11:22:40 +00:00
strncpy_from_user.c
strnlen_user.c
syscall.c
test_bitfield.c
test_bitmap.c
test_bpf.c
test_debug_virtual.c
test_firmware.c
test_hash.c
test_hexdump.c
test_ida.c
test_kasan.c
test_kmod.c
test_list_sort.c
test_meminit.c
test_module.c
test_overflow.c
test_parman.c
test_printf.c
test_rhashtable.c
test_siphash.c
test_sort.c
test_stackinit.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_sysctl.c
test_ubsan.c
test_user_copy.c
test_uuid.c
test-kstrtox.c
test-string_helpers.c
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c
win_minmax.c
xxhash.c