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-rw-r--r--block/bfq-iosched.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 91c4390903a1..350c39ae2896 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -337,6 +337,11 @@ struct bfq_queue {
* last transition from idle to backlogged.
*/
unsigned long service_from_backlogged;
+ /*
+ * Cumulative service received from the @bfq_queue since its
+ * last transition to weight-raised state.
+ */
+ unsigned long service_from_wr;
/*
* Value of wr start time when switching to soft rt
@@ -344,6 +349,8 @@ struct bfq_queue {
unsigned long wr_start_at_switch_to_srt;
unsigned long split_time; /* time of last split */
+
+ unsigned long first_IO_time; /* time of first I/O for this queue */
};
/**
@@ -627,6 +634,18 @@ struct bfq_data {
struct bfq_io_cq *bio_bic;
/* bfqq associated with the task issuing current bio for merging */
struct bfq_queue *bio_bfqq;
+
+ /*
+ * Cached sbitmap shift, used to compute depth limits in
+ * bfq_update_depths.
+ */
+ unsigned int sb_shift;
+
+ /*
+ * Depth limits used in bfq_limit_depth (see comments on the
+ * function)
+ */
+ unsigned int word_depths[2][2];
};
enum bfqq_state_flags {