[PATCH v2 3/9] kasan: change allocation and freeing stack traces headers

From: Andrey Konovalov
Date: Thu Mar 02 2017 - 08:49:18 EST


Change stack traces headers from:

Allocated:
PID = 42

to:

Allocated by task 42:

Makes the report one line shorter and look better.

Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
---
mm/kasan/report.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 34a6d1aec524..5922330237fd 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -175,9 +175,9 @@ 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;

@@ -199,10 +199,8 @@ 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,
--
2.12.0.rc1.440.g5b76565f74-goog