From b276a876a014c5fa58a16f247c0933f6c42112e3 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 9 Jan 2013 08:05:12 -0800 Subject: blkcg: add blkg_policy_data->plid Add pd->plid so that the policy a pd belongs to can be identified easily. This will be used to implement hierarchical blkg_[rw]stats. Signed-off-by: Tejun Heo Acked-by: Vivek Goyal --- block/blk-cgroup.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'block/blk-cgroup.h') diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 24462258200e..40f5b9768aac 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -81,8 +81,9 @@ struct blkg_rwstat { * beginning and pd_size can't be smaller than pd. */ struct blkg_policy_data { - /* the blkg this per-policy data belongs to */ + /* the blkg and policy id this per-policy data belongs to */ struct blkcg_gq *blkg; + int plid; /* used during policy activation */ struct list_head alloc_node; -- cgit v1.2.3-58-ga151