diff options
Diffstat (limited to 'drivers/md/bcache/request.c')
| -rw-r--r-- | drivers/md/bcache/request.c | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 85b1f2a9b72d..29c231758293 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -475,7 +475,7 @@ struct search { unsigned int read_dirty_data:1; unsigned int cache_missed:1; - struct block_device *part; + struct block_device *orig_bdev; unsigned long start_time; struct btree_op op; @@ -670,8 +670,8 @@ static void bio_complete(struct search *s) { if (s->orig_bio) { /* Count on bcache device */ - part_end_io_acct(s->part, s->orig_bio, s->start_time); - + bio_end_io_acct_remapped(s->orig_bio, s->start_time, + s->orig_bdev); trace_bcache_request_end(s->d, s->orig_bio); s->orig_bio->bi_status = s->iop.status; bio_endio(s->orig_bio); @@ -714,7 +714,8 @@ static void search_free(struct closure *cl) } static inline struct search *search_alloc(struct bio *bio, - struct bcache_device *d) + struct bcache_device *d, struct block_device *orig_bdev, + unsigned long start_time) { struct search *s; @@ -732,7 +733,8 @@ static inline struct search *search_alloc(struct bio *bio, s->write = op_is_write(bio_op(bio)); s->read_dirty_data = 0; /* Count on the bcache device */ - s->start_time = part_start_io_acct(d->disk, &s->part, bio); + s->orig_bdev = orig_bdev; + s->start_time = start_time; s->iop.c = d->c; s->iop.bio = NULL; s->iop.inode = d->id; @@ -894,7 +896,8 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s, !(bio->bi_opf & (REQ_META|REQ_PRIO)) && s->iop.c->gc_stats.in_use < CUTOFF_CACHE_READA) reada = min_t(sector_t, dc->readahead >> 9, - get_capacity(bio->bi_disk) - bio_end_sector(bio)); + get_capacity(bio->bi_bdev->bd_disk) - + bio_end_sector(bio)); s->insert_bio_sectors = min(sectors, bio_sectors(bio) + reada); @@ -1073,7 +1076,7 @@ struct detached_dev_io_private { unsigned long start_time; bio_end_io_t *bi_end_io; void *bi_private; - struct block_device *part; + struct block_device *orig_bdev; }; static void detached_dev_end_io(struct bio *bio) @@ -1085,7 +1088,7 @@ static void detached_dev_end_io(struct bio *bio) bio->bi_private = ddip->bi_private; /* Count on the bcache device */ - part_end_io_acct(ddip->part, bio, ddip->start_time); + bio_end_io_acct_remapped(bio, ddip->start_time, ddip->orig_bdev); if (bio->bi_status) { struct cached_dev *dc = container_of(ddip->d, @@ -1098,7 +1101,8 @@ static void detached_dev_end_io(struct bio *bio) bio->bi_end_io(bio); } -static void detached_dev_do_request(struct bcache_device *d, struct bio *bio) +static void detached_dev_do_request(struct bcache_device *d, struct bio *bio, + struct block_device *orig_bdev, unsigned long start_time) { struct detached_dev_io_private *ddip; struct cached_dev *dc = container_of(d, struct cached_dev, disk); @@ -1111,7 +1115,8 @@ static void detached_dev_do_request(struct bcache_device *d, struct bio *bio) ddip = kzalloc(sizeof(struct detached_dev_io_private), GFP_NOIO); ddip->d = d; /* Count on the bcache device */ - ddip->start_time = part_start_io_acct(d->disk, &ddip->part, bio); + ddip->orig_bdev = orig_bdev; + ddip->start_time = start_time; ddip->bi_end_io = bio->bi_end_io; ddip->bi_private = bio->bi_private; bio->bi_end_io = detached_dev_end_io; @@ -1167,8 +1172,10 @@ static void quit_max_writeback_rate(struct cache_set *c, blk_qc_t cached_dev_submit_bio(struct bio *bio) { struct search *s; - struct bcache_device *d = bio->bi_disk->private_data; + struct block_device *orig_bdev = bio->bi_bdev; + struct bcache_device *d = orig_bdev->bd_disk->private_data; struct cached_dev *dc = container_of(d, struct cached_dev, disk); + unsigned long start_time; int rw = bio_data_dir(bio); if (unlikely((d->c && test_bit(CACHE_SET_IO_DISABLE, &d->c->flags)) || @@ -1193,11 +1200,13 @@ blk_qc_t cached_dev_submit_bio(struct bio *bio) } } + start_time = bio_start_io_acct(bio); + bio_set_dev(bio, dc->bdev); bio->bi_iter.bi_sector += dc->sb.data_offset; if (cached_dev_get(dc)) { - s = search_alloc(bio, d); + s = search_alloc(bio, d, orig_bdev, start_time); trace_bcache_request_start(s->d, bio); if (!bio->bi_iter.bi_size) { @@ -1218,7 +1227,7 @@ blk_qc_t cached_dev_submit_bio(struct bio *bio) } } else /* I/O request sent to backing device */ - detached_dev_do_request(d, bio); + detached_dev_do_request(d, bio, orig_bdev, start_time); return BLK_QC_T_NONE; } @@ -1274,7 +1283,7 @@ blk_qc_t flash_dev_submit_bio(struct bio *bio) { struct search *s; struct closure *cl; - struct bcache_device *d = bio->bi_disk->private_data; + struct bcache_device *d = bio->bi_bdev->bd_disk->private_data; if (unlikely(d->c && test_bit(CACHE_SET_IO_DISABLE, &d->c->flags))) { bio->bi_status = BLK_STS_IOERR; @@ -1282,7 +1291,7 @@ blk_qc_t flash_dev_submit_bio(struct bio *bio) return BLK_QC_T_NONE; } - s = search_alloc(bio, d); + s = search_alloc(bio, d, bio->bi_bdev, bio_start_io_acct(bio)); cl = &s->cl; bio = &s->bio.bio; |