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vircgroupv2: properly detect empty tasks

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With cgroups v2 the file cgroup.procs will never be empty if threading
is enabled as it will always have ID of all processes even if all
threads of the processes are moved to sub-cgroups. If that happens the
file cgroup.threads will be empty.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Pavel Hrdina 2020-10-13 13:25:22 +02:00
parent 09c12ba248
commit e85cfb095a
1 changed files with 1 additions and 1 deletions
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2
src/util/vircgroupv2.c
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@ -521,7 +521,7 @@ virCgroupV2HasEmptyTasks(virCgroupPtr cgroup,
int ret = -1;
g_autofree char *content = NULL;
ret = virCgroupGetValueStr(cgroup, controller, "cgroup.procs", &content);
ret = virCgroupGetValueStr(cgroup, controller, "cgroup.threads", &content);
if (ret == 0 && content[0] == '\0')
ret = 1;