cgroup: stash cgroup_root reference into cgroup_fs_context
authorAl Viro <viro@zeniv.linux.org.uk>
Thu, 17 Jan 2019 07:25:51 +0000 (02:25 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 28 Feb 2019 08:29:32 +0000 (03:29 -0500)
commitcf6299b1d00555cd10dc30d95b300d7084128a2c
treef4cd581ee037732a736b70e1fffa220e012be512
parente34a98d5b226b84a3ed6da93e7a92e65cc1c81ba
cgroup: stash cgroup_root reference into cgroup_fs_context

Note that this reference is *NOT* contributing to refcount of
cgroup_root in question and is valid only until cgroup_do_mount()
returns.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
kernel/cgroup/cgroup-internal.h
kernel/cgroup/cgroup-v1.c
kernel/cgroup/cgroup.c