[PATCH] kmemleak: fix check for softirq context

[Dmitry Vyukov]

From: Dmitry Vyukov <dvyu...@google.com>

in_softirq() is a wrong predicate to check if we are in a softirq context.
It also returns true if we have BH disabled, so objects are falsely
stamped with "softirq" comm. The correct predicate is in_serving_softirq().

Signed-off-by: Dmitry Vyukov <dvyu...@google.com>
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
---
 mm/kmemleak.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index e57bf810f7983..6584ff9778895 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -588,7 +588,7 @@ static struct kmemleak_object *create_object(unsigned long 
ptr, size_t size,
        if (in_irq()) {
                object->pid = 0;
                strncpy(object->comm, "hardirq", sizeof(object->comm));
-       } else if (in_softirq()) {
+       } else if (in_serving_softirq()) {
                object->pid = 0;
                strncpy(object->comm, "softirq", sizeof(object->comm));
        } else {
-- 
2.21.0.1020.gf2820cf01a-goog