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-rw-r--r--include/linux/blk-cgroup.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 65f0c178fd04..4dc643f2046e 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -195,6 +195,12 @@ static inline struct blkcg *bio_blkcg(struct bio *bio)
return task_blkcg(current);
}
+static inline struct cgroup_subsys_state *
+task_get_blkcg_css(struct task_struct *task)
+{
+ return task_get_css(task, blkio_cgrp_id);
+}
+
/**
* blkcg_parent - get the parent of a blkcg
* @blkcg: blkcg of interest
@@ -573,6 +579,12 @@ struct blkcg_policy {
#define blkcg_root_css ((struct cgroup_subsys_state *)ERR_PTR(-EINVAL))
+static inline struct cgroup_subsys_state *
+task_get_blkcg_css(struct task_struct *task)
+{
+ return NULL;
+}
+
#ifdef CONFIG_BLOCK
static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; }