linux-kernel - [PATCH 18/24] blkcg: s/blkg_rwstat_sum()/blkg_rwstat

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Message-Id: <1356726946-26037-19-git-send-email-tj@kernel.org>
Date:	Fri, 28 Dec 2012 12:35:40 -0800
From:	Tejun Heo <tj@...nel.org>
To:	lizefan@...wei.com, axboe@...nel.dk, vgoyal@...hat.com
Cc:	containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, ctalbott@...gle.com, rni@...gle.com,
	Tejun Heo <tj@...nel.org>
Subject: [PATCH 18/24] 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@...nel.org>
---
 block/blk-cgroup.h  | 4 ++--
 block/cfq-iosched.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 678e89e..586c0ac 100644
--- 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..d43145cc 100644
--- 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);
 }
-- 
1.8.0.2

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