shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: lib/stackdepot.c: allow the stack trace hash to be zero

Browse Source 
Do not bail out from depot_save_stack() if the stack trace has zero hash.
Initially depot_save_stack() silently dropped stack traces with zero
hashes, however there's actually no point in reserving this zero value.

Reported-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: 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 33334e2576)
Change-Id: I44c9c5a881e2f4176c3946905b8f11b26f45bc00
Signed-off-by: Paul Lawrence <paullawrence@google.com>
This commit is contained in:
Alexander Potapenko
2016-04-28 16:19:09 -07:00
committed by Amit Pundir
parent 4372edb63c
commit 5ef19e65e2
1 changed files with 0 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
lib/stackdepot.c
View File

@@ -210,10 +210,6 @@ depot_stack_handle_t depot_save_stack(struct stack_trace *trace,
goto fast_exit;
hash = hash_stack(trace->entries, trace->nr_entries);
/* Bad luck, we won't store this stack. */
if (hash == 0)
goto exit;
bucket = &stack_table[hash & STACK_HASH_MASK];
/*