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UPSTREAM: kasan: change allocation and freeing stack traces headers

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Change stack traces headers from:

  Allocated:
  PID = 42

to:

  Allocated by task 42:

Makes the report one line shorter and look better.

Link: http://lkml.kernel.org/r/20170302134851.101218-4-andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Bug: 64145065
(cherry-picked from b6b72f4919)
Change-Id: Iab66777f16016b5a3a8ce85f7cc62d4572fcf5b0
Signed-off-by: Paul Lawrence <paullawrence@google.com>
This commit is contained in:
Andrey Konovalov
2017-05-03 14:56:31 -07:00
committed by Amit Pundir
parent b6fa387bdb
commit 6aa280e225
1 changed files with 4 additions and 6 deletions
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10
mm/kasan/report.c
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@@ -177,9 +177,9 @@ static void kasan_end_report(unsigned long *flags)
kasan_enable_current();
}
static void print_track(struct kasan_track *track)
static void print_track(struct kasan_track *track, const char *prefix)
{
pr_err("PID = %u\n", track->pid);
pr_err("%s by task %u:\n", prefix, track->pid);
if (track->stack) {
struct stack_trace trace;
@@ -201,10 +201,8 @@ static void kasan_object_err(struct kmem_cache *cache, void *object)
if (!(cache->flags & SLAB_KASAN))
return;
pr_err("Allocated:\n");
print_track(&alloc_info->alloc_track);
pr_err("Freed:\n");
print_track(&alloc_info->free_track);
print_track(&alloc_info->alloc_track, "Allocated");
print_track(&alloc_info->free_track, "Freed");
}
void kasan_report_double_free(struct kmem_cache *cache, void *object,