tools headers UAPI: Sync linux/prctl.h with the kernel sources

[linux-2.6-microblaze.git] / block / bfq-iosched.h

diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index b8e793c..99c2a3c 100644 (file)
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -197,6 +197,9 @@ struct bfq_entity {
 
        /* flag, set if the entity is counted in groups_with_pending_reqs */
        bool in_groups_with_pending_reqs;
+
+       /* last child queue of entity created (for non-leaf entities) */
+       struct bfq_queue *last_bfqq_created;
 };
 
 struct bfq_group;
@@ -230,6 +233,8 @@ struct bfq_ttime {
 struct bfq_queue {
        /* reference counter */
        int ref;
+       /* counter of references from other queues for delayed stable merge */
+       int stable_ref;
        /* parent bfq_data */
        struct bfq_data *bfqd;
 
@@ -365,6 +370,8 @@ struct bfq_queue {
 
        unsigned long first_IO_time; /* time of first I/O for this queue */
 
+       unsigned long creation_time; /* when this queue is created */
+
        /* max service rate measured so far */
        u32 max_service_rate;
 
@@ -454,6 +461,11 @@ struct bfq_io_cq {
        u64 saved_last_serv_time_ns;
        unsigned int saved_inject_limit;
        unsigned long saved_decrease_time_jif;
+
+       /* candidate queue for a stable merge (due to close creation time) */
+       struct bfq_queue *stable_merge_bfqq;
+
+       bool stably_merged;     /* non splittable if true */
 };
 
 /**
@@ -578,6 +590,9 @@ struct bfq_data {
        /* bfqq owning the last completed rq */
        struct bfq_queue *last_completed_rq_bfqq;
 
+       /* last bfqq created, among those in the root group */
+       struct bfq_queue *last_bfqq_created;
+
        /* time of last transition from empty to non-empty (ns) */
        u64 last_empty_occupied_ns;