Commit 909c6475 authored by David Gow's avatar David Gow Committed by Shuah Khan
Browse files

mm: slub: test: Use the kunit_get_current_test() function 



Use the newly-added function kunit_get_current_test() instead of
accessing current->kunit_test directly. This function uses a static key
to return more quickly when KUnit is enabled, but no tests are actively
running. There should therefore be a negligible performance impact to
enabling the slub KUnit tests.

Other than the performance improvement, this should be a no-op.

Cc: Oliver Glitta <glittao@gmail.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarDavid Gow <davidgow@google.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Acked-by: default avatarHyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 91e93592

lib/slub_kunit.c

+1 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

#include <kunit/test.h>

#include <kunit/test-bug.h>

#include <linux/mm.h>

#include <linux/slab.h>

#include <linux/module.h>

mm/slub.c

+2 −1
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 
#include <linux/memcontrol.h>

#include <linux/random.h>

#include <kunit/test.h>

#include <kunit/test-bug.h>

#include <linux/sort.h>



#include <linux/debugfs.h>
@@ -603,7 +604,7 @@ static bool slab_add_kunit_errors(void) 
{

	struct kunit_resource *resource;



	if (likely(!current->kunit_test))

	if (!kunit_get_current_test())

		return false;



	resource = kunit_find_named_resource(current->kunit_test, "slab_errors");