kmemleak: Do not warn if an unknown object is freed

vmap'ed memory blocks are not tracked by kmemleak (yet) but they may be
released with vfree() which is tracked. The corresponding kmemleak
warning is only enabled in debug mode. Future patch will add support for
ioremap and vmap.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index e094c4dbdf55bf3ffe44eb43bb0772903d8d2103..eeece2deace2622cfcea5d19e5a60f18302a76f1 100644 (file)
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -531,8 +531,10 @@ static void delete_object(unsigned long ptr)
        write_lock_irqsave(&kmemleak_lock, flags);
        object = lookup_object(ptr, 0);
        if (!object) {
+#ifdef DEBUG
                kmemleak_warn("Freeing unknown object at 0x%08lx\n",
                              ptr);
+#endif
                write_unlock_irqrestore(&kmemleak_lock, flags);
                return;
        }