From c1bbd933e5fae83f96acd3f748bb01a0300b315d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 13 Nov 2018 12:06:41 -0800 Subject: cgroup: Add .__DEBUG__. prefix to debug file names Clearly mark the debug files and hide them by default by prefixing ".__DEBUG__.". Signed-off-by: Tejun Heo Cc: Peter Zijlstra (Intel) Cc: Waiman Long --- kernel/cgroup/cgroup.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'kernel') diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index ed7f0bfe6429..e06994fd4e34 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -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; } -- cgit v1.2.3