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From: Roman Gushchin To: Michal =?iso-8859-1?Q?Koutn=FD?= Cc: void@manifault.com, akpm@linux-foundation.org, cgroups@vger.kernel.org, hannes@cmpxchg.org, kernel-team@fb.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@kernel.org, shakeelb@google.com, tj@kernel.org, Richard Palethorpe Subject: Re: [PATCH 1/4] selftests: memcg: Fix compilation Message-ID: References: <20220512174452.tr34tuh4k5jm6qjs@dev0025.ash9.facebook.com> <20220513171811.730-1-mkoutny@suse.com> <20220513171811.730-2-mkoutny@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220513171811.730-2-mkoutny@suse.com> X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: linux.dev X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 5D4031600A5 X-Stat-Signature: ycry8cic635fjtgpe6f9jc5hbmz1dxyc X-Rspam-User: Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=CwQJQeNU; spf=pass (imf08.hostedemail.com: domain of roman.gushchin@linux.dev designates 91.121.223.63 as permitted sender) smtp.mailfrom=roman.gushchin@linux.dev; dmarc=pass (policy=none) header.from=linux.dev X-HE-Tag: 1652467993-290622 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, May 13, 2022 at 07:18:08PM +0200, Michal Koutny wrote: > This fixes mis-applied changes from commit 72b1e03aa725 ("cgroup: > account for memory_localevents in test_memcg_oom_group_leaf_events()"). > > Signed-off-by: Michal Koutný > --- > .../selftests/cgroup/test_memcontrol.c | 25 +++++++++++-------- > 1 file changed, 14 insertions(+), 11 deletions(-) > > diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c > index 6ab94317c87b..4958b42201a9 100644 > --- a/tools/testing/selftests/cgroup/test_memcontrol.c > +++ b/tools/testing/selftests/cgroup/test_memcontrol.c > @@ -1241,7 +1241,16 @@ static int test_memcg_oom_group_leaf_events(const char *root) > if (cg_read_key_long(child, "memory.events", "oom_kill ") <= 0) > goto cleanup; > > - if (cg_read_key_long(parent, "memory.events", "oom_kill ") <= 0) > + parent_oom_events = cg_read_key_long( > + parent, "memory.events", "oom_kill "); > + /* > + * If memory_localevents is not enabled (the default), the parent should > + * count OOM events in its children groups. Otherwise, it should not > + * have observed any events. > + */ > + if (has_localevents && parent_oom_events != 0) > + goto cleanup; > + else if (!has_localevents && parent_oom_events <= 0) > goto cleanup; > > ret = KSFT_PASS; > @@ -1349,20 +1358,14 @@ static int test_memcg_oom_group_score_events(const char *root) > if (!cg_run(memcg, alloc_anon, (void *)MB(100))) > goto cleanup; > > - parent_oom_events = cg_read_key_long( > - parent, "memory.events", "oom_kill "); > - /* > - * If memory_localevents is not enabled (the default), the parent should > - * count OOM events in its children groups. Otherwise, it should not > - * have observed any events. > - */ > - if ((has_localevents && parent_oom_events == 0) || > - parent_oom_events > 0) > - ret = KSFT_PASS; > + if (cg_read_key_long(memcg, "memory.events", "oom_kill ") != 3) > + FAIL(cleanup); > > if (kill(safe_pid, SIGKILL)) > goto cleanup; > > + ret = KSFT_PASS; > + > cleanup: > if (memcg) > cg_destroy(memcg); > -- > 2.35.3 > My bad. Acked-by: Roman Gushchin Thanks!