From 689665af4489f779bc82e7869509c9ac11b5a903 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 9 Jan 2013 08:05:13 -0800 Subject: cfq-iosched: separate out cfqg_stats_reset() from cfq_pd_reset_stats() Separate out cfqg_stats_reset() which takes struct cfqg_stats * from cfq_pd_reset_stats() and move the latter to where other pd methods are defined. cfqg_stats_reset() will be used to implement hierarchical stats. Signed-off-by: Tejun Heo Acked-by: Vivek Goyal --- block/cfq-iosched.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'block') diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index d43145cc0088..f8b34bbbd372 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -688,11 +688,9 @@ static inline void cfqg_stats_update_completion(struct cfq_group *cfqg, io_start_time - start_time); } -static void cfq_pd_reset_stats(struct blkcg_gq *blkg) +/* @stats = 0 */ +static void cfqg_stats_reset(struct cfqg_stats *stats) { - struct cfq_group *cfqg = blkg_to_cfqg(blkg); - struct cfqg_stats *stats = &cfqg->stats; - /* queued stats shouldn't be cleared */ blkg_rwstat_reset(&stats->service_bytes); blkg_rwstat_reset(&stats->serviced); @@ -1477,6 +1475,13 @@ static void cfq_pd_init(struct blkcg_gq *blkg) cfqg->leaf_weight = blkg->blkcg->cfq_leaf_weight; } +static void cfq_pd_reset_stats(struct blkcg_gq *blkg) +{ + struct cfq_group *cfqg = blkg_to_cfqg(blkg); + + cfqg_stats_reset(&cfqg->stats); +} + /* * Search for the cfq group current task belongs to. request_queue lock must * be held. -- cgit v1.2.3