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block: move update_io_ticks to blk-core.c 

All callers are in blk-core.c, so move update_io_ticks over.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
alistair/sunxi64-5.8
Christoph Hellwig 2020-05-27 07:24:13 +02:00 committed by Jens Axboe
parent e722fff238
commit 9123bf6f21
3 changed files with 15 additions and 17 deletions
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16
block/bio.c
View File

@ -1376,22 +1376,6 @@ defer:
schedule_work(&bio_dirty_work);
}
void update_io_ticks(struct hd_struct *part, unsigned long now, bool end)
{
unsigned long stamp;
again:
stamp = READ_ONCE(part->stamp);
if (unlikely(stamp != now)) {
if (likely(cmpxchg(&part->stamp, stamp, now) == stamp)) {
__part_stat_add(part, io_ticks, end ? now - stamp : 1);
}
}
if (part->partno) {
part = &part_to_disk(part)->part0;
goto again;
}
}
static inline bool bio_remaining_done(struct bio *bio)
{
/*

15
block/blk-core.c
View File

@ -1381,6 +1381,21 @@ unsigned int blk_rq_err_bytes(const struct request *rq)
}
EXPORT_SYMBOL_GPL(blk_rq_err_bytes);
static void update_io_ticks(struct hd_struct *part, unsigned long now, bool end)
{
unsigned long stamp;
again:
stamp = READ_ONCE(part->stamp);
if (unlikely(stamp != now)) {
if (likely(cmpxchg(&part->stamp, stamp, now) == stamp))
__part_stat_add(part, io_ticks, end ? now - stamp : 1);
}
if (part->partno) {
part = &part_to_disk(part)->part0;
goto again;
}
}
static void blk_account_io_completion(struct request *req, unsigned int bytes)
{
if (req->part && blk_do_io_stat(req)) {

1
block/blk.h
View File

@ -344,7 +344,6 @@ void blk_queue_free_zone_bitmaps(struct request_queue *q);
static inline void blk_queue_free_zone_bitmaps(struct request_queue *q) {}
#endif
void update_io_ticks(struct hd_struct *part, unsigned long now, bool end);
struct hd_struct *disk_map_sector_rcu(struct gendisk *disk, sector_t sector);
int blk_alloc_devt(struct hd_struct *part, dev_t *devt);