From: Li Zefan Date: Mon, 15 Apr 2013 06:25:05 +0000 (+0800) Subject: cgroup: remove cgrp->top_cgroup X-Git-Tag: upstream/snapshot3+hdmi~5277^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05fb22ec5456a472a5eadcaacb3e51eca1f8c79c;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git cgroup: remove cgrp->top_cgroup It's not used, and it can be retrieved via cgrp->root->top_cgroup. Signed-off-by: Li Zefan Signed-off-by: Tejun Heo --- diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 9c300ad..64047ae 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -204,7 +204,6 @@ struct cgroup { struct cgroup_subsys_state *subsys[CGROUP_SUBSYS_COUNT]; struct cgroupfs_root *root; - struct cgroup *top_cgroup; /* * List of cg_cgroup_links pointing at css_sets with diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 6780459..c16719e 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1418,7 +1418,6 @@ static void init_cgroup_root(struct cgroupfs_root *root) root->number_of_cgroups = 1; cgrp->root = root; cgrp->name = &root_cgroup_name; - cgrp->top_cgroup = cgrp; init_cgroup_housekeeping(cgrp); list_add_tail(&cgrp->allcg_node, &root->allcg_list); } @@ -4145,7 +4144,6 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, cgrp->parent = parent; cgrp->root = parent->root; - cgrp->top_cgroup = parent->top_cgroup; if (notify_on_release(parent)) set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags);