Linus Torvalds ea2e77f490 Use the new batched user accesses in generic user string handling ... This converts the generic user string functions to use the batched user access functions. It makes a big difference on Skylake, which is the first x86 microarchitecture to implement SMAP. The STAC/CLAC instructions are not very fast, and doing them for each access inside the loop that copies strings from user space (which is what the pathname handling does for every pathname the kernel uses, for example) is very inefficient. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit 9fd4470ff4974c41b1db43c3b355b9085af9c12a) Signed-off-by: Alex Shi <alex.shi@linaro.org>		2016-08-27 11:23:38 +08:00
..
842	crypto: 842 - Add CRC and validation support	2015-10-14 22:23:17 +08:00
fonts
lz4	lib: lz4: fixed zram with lz4 on big endian machines	2016-05-04 14:48:41 -07:00
lzo
mpi	lib/mpi: Endianness fix	2016-05-04 14:48:51 -07:00
raid6	md/raid6: delta syndrome for ARM NEON	2015-08-31 19:29:05 +02:00
reed_solomon
xz
zlib_deflate	zlib_deflate/deftree: remove bi_reverse()	2015-09-10 13:29:01 -07:00
zlib_inflate
.gitignore
argv_split.c
asn1_decoder.c	ASN.1: Handle 'ANY OPTIONAL' in grammar	2015-08-05 13:38:07 +01:00
assoc_array.c	assoc_array: don't call compare_object() on a node	2016-05-04 14:48:40 -07:00
atomic64.c	atomic: Provide atomic_{or,xor,and}	2015-07-27 14:06:24 +02:00
atomic64_test.c	atomic: Add simple atomic_t tests	2015-07-27 14:06:24 +02:00
audit.c
bcd.c
bch.c
bitmap.c	lib/bitmap.c: bitmap_parselist can accept string with whitespaces on head or tail	2015-09-10 13:29:01 -07:00
bitrev.c
bsearch.c
btree.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
bug.c	module: Sanitize RCU usage and locking	2015-05-28 11:31:52 +09:30
build_OID_registry
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
compat_audit.c
cordic.c
cpu-notifier-error-inject.c
cpu_rmap.c	sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()	2015-05-27 15:22:15 +02:00
cpumask.c	revert "cpumask: don't perform while loop in cpumask_next_and()"	2015-06-18 17:00:23 -10:00
crc-ccitt.c
crc-itu-t.c	lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants	2015-05-26 15:26:43 +02:00
crc-t10dif.c	lib: introduce crc_t10dif_update()	2015-05-30 22:42:24 -07:00
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
ctype.c
debug_info.c	kbuild: include core debug info when DEBUG_INFO_REDUCED	2015-06-11 15:08:32 +02:00
debug_locks.c
debugobjects.c
dec_and_lock.c
decompress.c	lib/decompress: set the compressor name to NULL on error	2015-07-17 16:39:54 -07:00
decompress_bunzip2.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_inflate.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_unlz4.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_unlzma.c	lib/decompress_unlzma: Do a NULL check for pointer	2015-09-10 13:29:01 -07:00
decompress_unlzo.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_unxz.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
devres.c	devres: fix a for loop bounds check	2015-10-05 04:49:54 +01:00
digsig.c	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
div64.c	remove abs64()	2015-11-09 15:11:24 -08:00
dma-debug.c	dma-debug: avoid spinlock recursion when disabling dma-debug	2016-06-07 18:14:37 -07:00
dump_stack.c	dump_stack: avoid potential deadlocks	2016-02-25 12:01:23 -08:00
dynamic_debug.c	lib/dynamic_debug.c: use kstrdup_const	2015-11-06 17:50:42 -08:00
dynamic_queue_limits.c
earlycpio.c
extable.c	extable: add support for relative extables to search and sort routines	2016-05-11 23:18:44 +08:00
fault-inject.c	fault-inject: fix inverted interval/probability values in printk	2015-10-23 17:55:10 +09:00
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: rename lib/find_next_bit.c to lib/find_bit.c	2015-04-17 09:03:54 -04:00
flex_array.c
flex_proportions.c
gcd.c
gen_crc32table.c
genalloc.c	genalloc: add support of multiple gen_pools per device	2015-09-04 16:54:41 -07:00
glob.c
halfmd4.c	lib/halfmd4.c: use rol32 inline function in the ROUND macro	2015-11-06 17:50:42 -08:00
hexdump.c	lib/hexdump.c: truncate output in case of overflow	2015-11-06 17:50:42 -08:00
hweight.c
idr.c	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
inflate.c
int_sqrt.c
interval_tree.c
interval_tree_test.c
iomap.c
iomap_copy.c
iommu-common.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc	2015-11-05 16:34:48 -08:00
iommu-helper.c
ioremap.c
iov_iter.c
irq_regs.c
is_single_threaded.c	lib/is_single_threaded.c: change current_is_single_threaded() to use for_each_thread()	2015-11-06 17:50:42 -08:00
jedec_ddr_data.c
kasprintf.c	lib/kasprintf.c: introduce kvasprintf_const	2015-11-06 17:50:42 -08:00
Kconfig	lib: sw842: select crc32	2016-03-03 15:07:24 -08:00
Kconfig.debug	Nothing exciting, minor tweaks and cleanups.	2015-11-09 15:53:39 -08:00
Kconfig.kasan	mm, slub, kasan: enable user tracking by default with KASAN=y	2015-11-05 19:34:48 -08:00
Kconfig.kgdb
Kconfig.kmemcheck
kfifo.c
klist.c	klist: fix starting point removed bug in klist iterators	2016-02-25 12:01:16 -08:00
kobject.c	lib/kobject.c: use kvasprintf_const for formatting ->name	2015-11-06 17:50:42 -08:00
kobject_uevent.c
kstrtox.c	kstrto*: accept "-0" for signed conversion	2015-09-10 13:29:01 -07:00
kstrtox.h
lcm.c
libcrc32c.c	crypto: crc32c - Fix crc32c soft dependency	2016-02-17 12:31:04 -08:00
list_debug.c
list_sort.c	lib/list_sort: use late_initcall to hook in self tests	2015-06-16 14:12:35 -04:00
llist.c	lib/llist.c: fix data race in llist_del_first	2015-11-06 17:50:42 -08:00
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-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	locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition	2015-08-12 11:59:04 +02:00
lru_cache.c	lru_cache: remove use of seq_printf return value	2015-04-15 16:35:25 -07:00
Makefile	test_printf: test printf family at runtime	2015-11-06 17:50:42 -08:00
md5.c
memory-notifier-error-inject.c
memweight.c
net_utils.c
nlattr.c
nmi_backtrace.c	ARM: 8439/1: Fix backtrace generation when IPI is masked	2015-10-03 16:40:51 +01:00
notifier-error-inject.c
notifier-error-inject.h
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c	once: make helper generic for calling functions once	2015-10-08 05:26:36 -07:00
parser.c
pci_iomap.c	libnvdimm for 4.3:	2015-09-08 14:35:59 -07:00
percpu-refcount.c
percpu_counter.c	percpu_counter: batch size aware __percpu_counter_compare()	2015-05-29 07:39:34 +10:00
percpu_ida.c	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
percpu_test.c
plist.c
pm-notifier-error-inject.c
proportions.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
radix-tree.c	radix-tree: fix race in gang lookup	2016-02-25 12:01:23 -08:00
random32.c	random32: add prandom_init_once helper for own rngs	2015-10-08 05:26:38 -07:00
ratelimit.c
rational.c
rbtree.c	rbtree: Make lockless searches non-fatal	2015-05-28 11:32:04 +09:30
rbtree_test.c
reciprocal_div.c
rhashtable.c	rhashtable: Kill harmless RCU warning in rhashtable_walk_init	2015-12-18 23:44:18 -05:00
scatterlist.c	scatterlist: allow limited chaining without ARCH_HAS_SG_CHAIN	2015-08-17 08:12:51 -06:00
seq_buf.c
sg_split.c	lib: scatterlist: add sg splitting function	2015-08-24 14:28:01 -06:00
sha1.c
show_mem.c	lib/show_mem.c: correct reserved memory calculation	2015-09-08 15:35:28 -07:00
smp_processor_id.c
sort.c	lib/sort: Add 64 bit swap function	2015-06-25 17:00:40 -07:00
stmp_device.c
string.c	lib/string.c: add ULL suffix to the constant definition	2015-11-10 16:32:11 -08:00
string_helpers.c	string_helpers: fix precision loss for some inputs	2016-02-25 12:01:21 -08:00
strncpy_from_user.c	Use the new batched user accesses in generic user string handling	2016-08-27 11:23:38 +08:00
strnlen_user.c	Use the new batched user accesses in generic user string handling	2016-08-27 11:23:38 +08:00
swiotlb.c	Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block	2015-06-25 15:22:36 -07:00
syscall.c
test-hexdump.c	hexdump: Make test data really const	2015-06-25 17:00:40 -07:00
test-kstrtox.c	kstrto*: accept "-0" for signed conversion	2015-09-10 13:29:01 -07:00
test-string_helpers.c	lib/test-string_helpers.c: fix and improve string_get_size() tests	2016-05-11 11:21:26 +02:00
test_bpf.c	bpf: add mod default A and X test cases	2015-11-05 00:05:50 -05:00
test_firmware.c
test_kasan.c	lib: test_kasan: add some testcases	2015-11-05 19:34:48 -08:00
test_module.c
test_printf.c	test_printf: test printf family at runtime	2015-11-06 17:50:42 -08:00
test_rhashtable.c	rhashtable-test: extend to test concurrency	2015-08-17 14:33:47 -07:00
test_static_key_base.c	locking/static_keys: Provide a selftest	2015-08-03 11:51:12 +02:00
test_static_keys.c	locking/static_keys: Make verify_keys() static	2015-08-05 09:53:40 +02:00
test_user_copy.c
textsearch.c
timerqueue.c	timerqueue: Let timerqueue_add/del return information	2015-04-22 17:06:49 +02:00
ts_bm.c
ts_fsm.c
ts_kmp.c
ucs2_string.c	lib/ucs2_string: Correct ucs2 -> utf8 conversion	2016-03-03 15:07:09 -08:00
usercopy.c
uuid.c
vsprintf.c	lib/vsprintf.c: update documentation	2015-11-06 17:50:42 -08:00