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cfq-iosched: Rename few functions related to selecting workload 

choose_service_tree() selects/sets both wl_class and wl_type.  Rename it to
choose_wl_class_and_type() to make it very clear.

cfq_choose_wl() only selects and sets wl_type. It is easy to confuse
it with choose_st(). So rename it to cfq_choose_wl_type() to make
it clear what does it do.

Just renaming. No functionality change.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Vivek Goyal 2012-10-03 16:56:59 -04:00 committed by Tejun Heo
parent 34b98d03bd
commit 6d816ec7c8
1 changed files with 5 additions and 4 deletions
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9
block/cfq-iosched.c
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@ -2490,7 +2490,7 @@ static void cfq_setup_merge(struct cfq_queue *cfqq, struct cfq_queue *new_cfqq)
}
}
static enum wl_type_t cfq_choose_wl(struct cfq_data *cfqd,
static enum wl_type_t cfq_choose_wl_type(struct cfq_data *cfqd,
struct cfq_group *cfqg, enum wl_class_t wl_class)
{
struct cfq_queue *queue;
@ -2513,7 +2513,8 @@ static enum wl_type_t cfq_choose_wl(struct cfq_data *cfqd,
return cur_best;
}
static void choose_service_tree(struct cfq_data *cfqd, struct cfq_group *cfqg)
static void
choose_wl_class_and_type(struct cfq_data *cfqd, struct cfq_group *cfqg)
{
unsigned slice;
unsigned count;
@ -2551,7 +2552,7 @@ static void choose_service_tree(struct cfq_data *cfqd, struct cfq_group *cfqg)
new_workload:
/* otherwise select new workload type */
cfqd->serving_wl_type = cfq_choose_wl(cfqd, cfqg,
cfqd->serving_wl_type = cfq_choose_wl_type(cfqd, cfqg,
cfqd->serving_wl_class);
st = st_for(cfqg, cfqd->serving_wl_class, cfqd->serving_wl_type);
count = st->count;
@ -2621,7 +2622,7 @@ static void cfq_choose_cfqg(struct cfq_data *cfqd)
} else
cfqd->workload_expires = jiffies - 1;
choose_service_tree(cfqd, cfqg);
choose_wl_class_and_type(cfqd, cfqg);
}
/*