linux-kernel - [PATCH v3 2/5] selftests: memcg: Expect no low events in unprotected sibling

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Message-Id: <20220524162955.8635-3-mkoutny@suse.com>
Date:   Tue, 24 May 2022 18:29:52 +0200
From:   Michal Koutný <mkoutny@...e.com>
To:     cgroups@...r.kernel.org, linux-mm@...ck.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Shakeel Butt <shakeelb@...gle.com>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        Richard Palethorpe <rpalethorpe@...e.de>,
        Muhammad Usama Anjum <usama.anjum@...labora.com>
Subject: [PATCH v3 2/5] selftests: memcg: Expect no low events in unprotected sibling

This is effectively a revert of commit cdc69458a5f3 ("cgroup: account
for memory_recursiveprot in test_memcg_low()"). The case test_memcg_low
will fail with memory_recursiveprot until resolved in reclaim
code.
However, this patch preserves the existing helpers and variables for
later uses.

Signed-off-by: Michal Koutný <mkoutny@...e.com>
Reviewed-by: David Vernet <void@...ifault.com>
---
 tools/testing/selftests/cgroup/test_memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c
index c012db9d07d6..4924425639b0 100644
--- a/tools/testing/selftests/cgroup/test_memcontrol.c
+++ b/tools/testing/selftests/cgroup/test_memcontrol.c
@@ -528,7 +528,7 @@ static int test_memcg_low(const char *root)
 	}
 
 	for (i = 0; i < ARRAY_SIZE(children); i++) {
-		int no_low_events_index = has_recursiveprot ? 2 : 1;
+		int no_low_events_index = 1;
 
 		oom = cg_read_key_long(children[i], "memory.events", "oom ");
 		low = cg_read_key_long(children[i], "memory.events", "low ");
-- 
2.35.3