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authorGu Zheng <guz.fnst@cn.fujitsu.com>2014-11-24 11:05:27 +0800
committerJens Axboe <axboe@fb.com>2014-11-24 08:05:18 -0700
commitfa573f72790c2c2b9bfd758c5d33959af4a39915 (patch)
tree59faf0413e2b2cd7dfaaccdbcad4047526fe78e3 /drivers/block
parent18c0b223cf9901727ef3b02da6711ac930b4e5d4 (diff)
block/rsxx: use generic io stats accounting functions to simplify io stat accounting
Use generic io stats accounting help functions (generic_{start,end}_io_acct) to simplify io stat accounting. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/rsxx/dev.c29
1 files changed, 4 insertions, 25 deletions
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index 40ee7705df63..ac8c62cb4875 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -112,37 +112,16 @@ static const struct block_device_operations rsxx_fops = {
static void disk_stats_start(struct rsxx_cardinfo *card, struct bio *bio)
{
- struct hd_struct *part0 = &card->gendisk->part0;
- int rw = bio_data_dir(bio);
- int cpu;
-
- cpu = part_stat_lock();
-
- part_round_stats(cpu, part0);
- part_inc_in_flight(part0, rw);
-
- part_stat_unlock();
+ generic_start_io_acct(bio_data_dir(bio), bio_sectors(bio),
+ &card->gendisk->part0);
}
static void disk_stats_complete(struct rsxx_cardinfo *card,
struct bio *bio,
unsigned long start_time)
{
- struct hd_struct *part0 = &card->gendisk->part0;
- unsigned long duration = jiffies - start_time;
- int rw = bio_data_dir(bio);
- int cpu;
-
- cpu = part_stat_lock();
-
- part_stat_add(cpu, part0, sectors[rw], bio_sectors(bio));
- part_stat_inc(cpu, part0, ios[rw]);
- part_stat_add(cpu, part0, ticks[rw], duration);
-
- part_round_stats(cpu, part0);
- part_dec_in_flight(part0, rw);
-
- part_stat_unlock();
+ generic_end_io_acct(bio_data_dir(bio), &card->gendisk->part0,
+ start_time);
}
static void bio_dma_done_cb(struct rsxx_cardinfo *card,