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-rw-r--r--tools/testing/selftests/cgroup/cgroup_util.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index e6f3679cdcc0..b4d7027a44c3 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -528,6 +528,18 @@ int set_oom_adj_score(int pid, int score)
return 0;
}
+int proc_mount_contains(const char *option)
+{
+ char buf[4 * PAGE_SIZE];
+ ssize_t read;
+
+ read = read_text("/proc/mounts", buf, sizeof(buf));
+ if (read < 0)
+ return read;
+
+ return strstr(buf, option) != NULL;
+}
+
ssize_t proc_read_text(int pid, bool thread, const char *item, char *buf, size_t size)
{
char path[PATH_MAX];