From 3e1d2eed39d804e48282931835c7203fa47fe1d9 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 18 Aug 2015 13:58:16 -0700 Subject: cgroup: introduce cgroup_subsys->legacy_name This allows cgroup subsystems to use a different name on the unified hierarchy. cgroup_subsys->name is used on the unified hierarchy, ->legacy_name elsewhere. If ->legacy_name is not explicitly set, it's automatically set to ->name and the userland visible behavior remains unchanged. v2: Make parse_cgroupfs_options() only consider ->legacy_name as mount options are used only on legacy hierarchies. Suggested by Li Zefan. Signed-off-by: Tejun Heo Acked-by: Li Zefan Cc: Johannes Weiner Cc: cgroups@vger.kernel.org --- include/linux/cgroup-defs.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 8f5770a7d85a..7d0bb53e4553 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -434,6 +434,9 @@ struct cgroup_subsys { int id; const char *name; + /* optional, initialized automatically during boot if not set */ + const char *legacy_name; + /* link to parent, protected by cgroup_lock() */ struct cgroup_root *root; -- cgit v1.2.3