diff options
| author | Tejun Heo <tj@kernel.org> | 2018-11-13 12:06:41 -0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2018-11-13 12:16:01 -0800 |
| commit | c1bbd933e5fae83f96acd3f748bb01a0300b315d (patch) | |
| tree | e28a04031e61f3eaf52b3a2a271323ba5d713fee | |
| parent | b1e3aeb11c5e86ee0988a038c4e7682d6beaa977 (diff) | |
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 <tj@kernel.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Waiman Long <longman@redhat.com>
| -rw-r--r-- | kernel/cgroup/cgroup.c | 11 |
1 files changed, 7 insertions, 4 deletions
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; } |