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-rw-r--r--block/blk-cgroup.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 44cb9086ed42..8ac457ce7783 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -16,6 +16,7 @@
#include <linux/cgroup.h>
#include <linux/u64_stats_sync.h>
#include <linux/seq_file.h>
+#include <linux/radix-tree.h>
/* Max limits for throttle policy */
#define THROTL_IOPS_MAX UINT_MAX
@@ -37,9 +38,14 @@ enum blkg_rwstat_type {
BLKG_RWSTAT_TOTAL = BLKG_RWSTAT_NR,
};
+struct blkcg_gq;
+
struct blkcg {
struct cgroup_subsys_state css;
spinlock_t lock;
+
+ struct radix_tree_root blkg_tree;
+ struct blkcg_gq *blkg_hint;
struct hlist_head blkg_list;
/* for policies to test whether associated blkcg has changed */