blkcg: s/blkg_rwstat_sum()/blkg_rwstat_total()/

Rename blkg_rwstat_sum() to blkg_rwstat_total().  sum will be used for
summing up stats from multiple blkgs.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 678e89e..586c0ac 100644 (file)
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -461,14 +461,14 @@ static inline struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
 }
 
 /**
- * blkg_rwstat_sum - read the total count of a blkg_rwstat
+ * blkg_rwstat_total - read the total count of a blkg_rwstat
  * @rwstat: blkg_rwstat to read
  *
  * Return the total count of @rwstat regardless of the IO direction.  This
  * function can be called without synchronization and takes care of u64
  * atomicity.
  */
-static inline uint64_t blkg_rwstat_sum(struct blkg_rwstat *rwstat)
+static inline uint64_t blkg_rwstat_total(struct blkg_rwstat *rwstat)
 {
        struct blkg_rwstat tmp = blkg_rwstat_read(rwstat);
 

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index e8f3106..d43145c 100644 (file)
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -536,7 +536,7 @@ static void cfqg_stats_set_start_empty_time(struct cfq_group *cfqg)
 {
        struct cfqg_stats *stats = &cfqg->stats;
 
-       if (blkg_rwstat_sum(&stats->queued))
+       if (blkg_rwstat_total(&stats->queued))
                return;
 
        /*
@@ -580,7 +580,7 @@ static void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg)
        struct cfqg_stats *stats = &cfqg->stats;
 
        blkg_stat_add(&stats->avg_queue_size_sum,
-                     blkg_rwstat_sum(&stats->queued));
+                     blkg_rwstat_total(&stats->queued));
        blkg_stat_add(&stats->avg_queue_size_samples, 1);
        cfqg_stats_update_group_wait_time(stats);
 }