Joonsoo Kim 204699c4e7 UPSTREAM: lib/stackdepot: avoid to return 0 handle ... Recently, we allow to save the stacktrace whose hashed value is 0. It causes the problem that stackdepot could return 0 even if in success. User of stackdepot cannot distinguish whether it is success or not so we need to solve this problem. In this patch, 1 bit are added to handle and make valid handle none 0 by setting this bit. After that, valid handle will not be 0 and 0 handle will represent failure correctly. Fixes: 33334e2576 ("lib/stackdepot.c: allow the stack trace hash to be zero") Link: http://lkml.kernel.org/r/1462252403-1106-1-git-send-email-iamjoonsoo.kim@lge.com Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from 7c31190bcf) Change-Id: Ibfb0eb8439225e03e72ed714570d8efac47188a0 Signed-off-by: Paul Lawrence <paullawrence@google.com>		2018-01-22 13:15:43 +05:30
..
842
fonts
lz4
lzo
mpi	lib/mpi: call cond_resched() from mpi_powm() loop	2017-11-30 08:37:19 +00:00
raid6
reed_solomon
xz
zlib_deflate
zlib_inflate
.gitignore
argv_split.c
asn1_decoder.c	ASN.1: check for error from ASN1_OP_END__ACT actions	2017-12-16 10:33:48 +01:00
assoc_array.c	assoc_array: Fix a buggy node-splitting case	2017-11-02 09:40:49 +01:00
atomic64_test.c
atomic64.c
audit.c
bcd.c
bch.c
bitmap.c
bitrev.c
bsearch.c
btree.c
bug.c
build_OID_registry
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c	lib/cmdline.c: fix get_options() overflow while parsing ranges	2017-06-29 12:48:51 +02:00
compat_audit.c
cordic.c
cpu_rmap.c
cpu-notifier-error-inject.c
cpumask.c
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
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	lib/digsig: fix dereference of NULL user_key_payload	2017-10-27 10:23:17 +02:00
div64.c
dma-debug.c
dump_stack.c
dynamic_debug.c	dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0	2017-12-16 10:33:54 +01:00
dynamic_queue_limits.c
earlycpio.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.c
flex_array.c
flex_proportions.c
gcd.c
gen_crc32table.c
genalloc.c	lib/genalloc.c: make the avail variable an atomic_long_t	2017-12-16 10:33:54 +01:00
glob.c
halfmd4.c
hexdump.c
hweight.c	BACKPORT: x86/hweight: Get rid of the special calling convention	2017-11-20 21:15:59 +05:30
idr.c
inflate.c
int_sqrt.c
interval_tree_test.c
interval_tree.c
iomap_copy.c
iomap.c
iommu-common.c
iommu-helper.c
ioremap.c
iov_iter.c
irq_regs.c
is_single_threaded.c
jedec_ddr_data.c
kasprintf.c
Kconfig	BACKPORT: mm, kasan: stackdepot implementation. Enable stackdepot for SLAB	2018-01-22 13:15:43 +05:30
Kconfig.debug	Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android	2017-08-17 14:18:51 +05:30
Kconfig.kasan	BACKPORT: mm, kasan: stackdepot implementation. Enable stackdepot for SLAB	2018-01-22 13:15:43 +05:30
Kconfig.kgdb
Kconfig.kmemcheck
kfifo.c
klist.c
kobject_uevent.c
kobject.c
kstrtox.c
kstrtox.h
lcm.c
libcrc32c.c	crypto: Work around deallocated stack frame reference gcc bug on sparc.	2017-10-15 23:55:37 +05:30
list_debug.c
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-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
lru_cache.c
Makefile	BACKPORT: mm, kasan: stackdepot implementation. Enable stackdepot for SLAB	2018-01-22 13:15:43 +05:30
md5.c
memory-notifier-error-inject.c
memweight.c
net_utils.c
nlattr.c
nmi_backtrace.c
notifier-error-inject.c
notifier-error-inject.h
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
parser.c
pci_iomap.c
percpu_counter.c
percpu_ida.c
percpu_test.c
percpu-refcount.c
plist.c
pm-notifier-error-inject.c
proportions.c
radix-tree.c
random32.c
ratelimit.c
rational.c
rbtree_test.c
rbtree.c
reciprocal_div.c
rhashtable.c
scatterlist.c
seq_buf.c
sg_split.c
sha1.c
show_mem.c
smp_processor_id.c
sort.c
stackdepot.c	UPSTREAM: lib/stackdepot: avoid to return 0 handle	2018-01-22 13:15:43 +05:30
stmp_device.c
string_helpers.c
string.c
strncpy_from_user.c
strnlen_user.c
swiotlb.c	swiotlb: ensure that page-sized mappings are page-aligned	2017-07-05 14:37:20 +02:00
syscall.c
test_bpf.c
test_firmware.c	test: firmware_class: report errors properly on failure	2017-11-15 17:13:13 +01:00
test_kasan.c
test_module.c
test_printf.c
test_rhashtable.c
test_static_key_base.c
test_static_keys.c
test_user_copy.c	usercopy: Adjust tests to deal with SMAP/PAN	2017-06-14 13:16:27 +02:00
test-hexdump.c
test-kstrtox.c
test-string_helpers.c
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c