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| author | Haifeng Xu <haifeng.xu@shopee.com> | 2023-05-22 11:52:33 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-10 01:25:39 +0200 |
| commit | 19ab365762c6cc39dfdee9e13ab0d12fe4b5540d (patch) | |
| tree | 5d5a1e9fabcebd7d14ec8fdd6e9e6053e7ab9cfc /tools/testing/selftests/cgroup | |
| parent | mm/memcontrol: fix typo in comment (diff) | |
| download | linux-19ab365762c6cc39dfdee9e13ab0d12fe4b5540d.tar.xz linux-19ab365762c6cc39dfdee9e13ab0d12fe4b5540d.zip | |
selftests: cgroup: fix unexpected failure on test_memcg_low
Since commit f079a020ba95 ("selftests: memcg: factor out common parts of
memory.{low,min} tests"), the value used in second alloc_anon has changed
from 148M to 170M. Because memory.low allows reclaiming page cache in
child cgroups, so the memory.current is close to 30M instead of 50M.
Therefore, adjust the expected value of parent cgroup.
Link: https://lkml.kernel.org/r/20230522095233.4246-2-haifeng.xu@shopee.com
Fixes: f079a020ba95 ("selftests: memcg: factor out common parts of memory.{low,min} tests")
Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/cgroup')
| -rw-r--r-- | tools/testing/selftests/cgroup/test_memcontrol.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c index f4f7c0aef702..a2a90f4bfe9f 100644 --- a/tools/testing/selftests/cgroup/test_memcontrol.c +++ b/tools/testing/selftests/cgroup/test_memcontrol.c @@ -292,6 +292,7 @@ static int test_memcg_protection(const char *root, bool min) char *children[4] = {NULL}; const char *attribute = min ? "memory.min" : "memory.low"; long c[4]; + long current; int i, attempts; int fd; @@ -400,7 +401,8 @@ static int test_memcg_protection(const char *root, bool min) goto cleanup; } - if (!values_close(cg_read_long(parent[1], "memory.current"), MB(50), 3)) + current = min ? MB(50) : MB(30); + if (!values_close(cg_read_long(parent[1], "memory.current"), current, 3)) goto cleanup; if (!reclaim_until(children[0], MB(10))) |