kasan: respect /proc/sys/kernel/traceoff_on_warning
authorPeter Zijlstra <peterz@infradead.org>
Fri, 3 Feb 2017 21:13:12 +0000 (13:13 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 3 Feb 2017 22:13:19 +0000 (14:13 -0800)
commit4f40c6e5627ea73b4e7c615c59631f38cc880885
treef1271c5000809746eef65329b4676430987438bc
parentd7b028f56a971a2e4d8d7887540a144eeefcd4ab
kasan: respect /proc/sys/kernel/traceoff_on_warning

After much waiting I finally reproduced a KASAN issue, only to find my
trace-buffer empty of useful information because it got spooled out :/

Make kasan_report honour the /proc/sys/kernel/traceoff_on_warning
interface.

Link: http://lkml.kernel.org/r/20170125164106.3514-1-aryabinin@virtuozzo.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/kasan/report.c