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-rw-r--r--block/blk-cgroup.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 2bef5705ce24..471fdcc5df85 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -114,6 +114,13 @@ struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup)
}
EXPORT_SYMBOL_GPL(cgroup_to_blkio_cgroup);
+struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk)
+{
+ return container_of(task_subsys_state(tsk, blkio_subsys_id),
+ struct blkio_cgroup, css);
+}
+EXPORT_SYMBOL_GPL(task_blkio_cgroup);
+
static inline void
blkio_update_group_weight(struct blkio_group *blkg, unsigned int weight)
{
@@ -868,7 +875,7 @@ static void blkio_update_policy_rule(struct blkio_policy_node *oldpn,
}
/*
- * Some rules/values in blkg have changed. Propogate those to respective
+ * Some rules/values in blkg have changed. Propagate those to respective
* policies.
*/
static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
@@ -903,7 +910,7 @@ static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
}
/*
- * A policy node rule has been updated. Propogate this update to all the
+ * A policy node rule has been updated. Propagate this update to all the
* block groups which might be affected by this update.
*/
static void blkio_update_policy_node_blkg(struct blkio_cgroup *blkcg,