cgroup: Add .__DEBUG__. prefix to debug file names (c1bbd933) · Commits · 戴 / test

Clearly mark the debug files and hide them by default by prefixing ".__DEBUG__.". Signed-off-by:

Tejun Heo <tj@kernel.org> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Waiman Long <longman@redhat.com>

kernel/cgroup/cgroup.c

+7 −4

Original line number	Diff line number	Diff line
		@@ -1400,12 +1400,15 @@ static char cgroup_file_name(struct cgroup cgrp, const struct cftype *cft,
		struct cgroup_subsys *ss = cft->ss;

		if (cft->ss && !(cft->flags & CFTYPE_NO_PREFIX) &&
		!(cgrp->root->flags & CGRP_ROOT_NOPREFIX))
		snprintf(buf, CGROUP_FILE_NAME_MAX, "%s.%s",
		cgroup_on_dfl(cgrp) ? ss->name : ss->legacy_name,
		!(cgrp->root->flags & CGRP_ROOT_NOPREFIX)) {
		const char *dbg = (cft->flags & CFTYPE_DEBUG) ? ".__DEBUG__." : "";

		snprintf(buf, CGROUP_FILE_NAME_MAX, "%s%s.%s",
		dbg, cgroup_on_dfl(cgrp) ? ss->name : ss->legacy_name,
		cft->name);
		else
		} else {
		strscpy(buf, cft->name, CGROUP_FILE_NAME_MAX);
		}
		return buf;
		}