[PATCH v2 06/26] block: Use bio_sectors() more consistently
From: Kent Overstreet <hidden>
Date: 2012-09-11 00:23:00
Also in:
dm-devel, lkml
Subsystem:
ata over ethernet (aoe) driver, block layer, device-mapper (lvm), ps3 platform support, ps3vram driver, ramdisk ram block device driver, software raid (multiple disks) support, the rest, tracing · Maintainers:
"Justin Sanders", Jens Axboe, Alasdair Kergon, Mike Snitzer, Mikulas Patocka, Benjamin Marzinski, Geoff Levand, Jim Paris, Song Liu, Yu Kuai, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Bunch of places in the code weren't using it where they could be - this'll reduce the size of the patch that puts bi_sector/bi_size/bi_idx into a struct bvec_iter. Signed-off-by: Kent Overstreet <redacted> CC: Jens Axboe <axboe@kernel.dk> --- drivers/block/aoe/aoeblk.c | 2 +- drivers/block/aoe/aoecmd.c | 2 +- drivers/block/brd.c | 3 +-- drivers/block/pktcdvd.c | 2 +- drivers/block/ps3vram.c | 2 +- drivers/md/dm-raid1.c | 2 +- drivers/md/raid0.c | 6 +++--- drivers/md/raid1.c | 17 ++++++++--------- drivers/md/raid10.c | 24 +++++++++++------------- drivers/md/raid5.c | 8 ++++---- include/trace/events/block.h | 10 +++++----- 11 files changed, 37 insertions(+), 41 deletions(-)
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 321de7b..6e4420a 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c@@ -199,7 +199,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) buf->bio = bio; buf->resid = bio->bi_size; buf->sector = bio->bi_sector; - buf->bv = &bio->bi_io_vec[bio->bi_idx]; + buf->bv = bio_iovec(bio); buf->bv_resid = buf->bv->bv_len; WARN_ON(buf->bv_resid == 0); buf->bv_off = buf->bv->bv_offset;
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index de0435e..2b52ebc 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c@@ -720,7 +720,7 @@ gettgt(struct aoedev *d, char *addr) static inline void diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector) { - unsigned long n_sect = bio->bi_size >> 9; + unsigned long n_sect = bio_sectors(bio); const int rw = bio_data_dir(bio); struct hd_struct *part; int cpu;
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 531ceb3..d5c4978 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c@@ -334,8 +334,7 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) int err = -EIO; sector = bio->bi_sector; - if (sector + (bio->bi_size >> SECTOR_SHIFT) > - get_capacity(bdev->bd_disk)) + if (sector + bio_sectors(bio) > get_capacity(bdev->bd_disk)) goto out; if (unlikely(bio->bi_rw & REQ_DISCARD)) {
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 8df3216..0824627 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c@@ -2433,7 +2433,7 @@ static void pkt_make_request(struct request_queue *q, struct bio *bio) cloned_bio->bi_bdev = pd->bdev; cloned_bio->bi_private = psd; cloned_bio->bi_end_io = pkt_end_io_read_cloned; - pd->stats.secs_r += bio->bi_size >> 9; + pd->stats.secs_r += bio_sectors(bio); pkt_queue_bio(pd, cloned_bio); return; }
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index f58cdcf..1ff38e8 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c@@ -553,7 +553,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev, struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev); int write = bio_data_dir(bio) == WRITE; const char *op = write ? "write" : "read"; - loff_t offset = bio->bi_sector << 9; + loff_t offset = bio_sectors(bio); int error = 0; struct bio_vec *bvec; unsigned int i;
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index bc5ddba8..3dac2de 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c@@ -457,7 +457,7 @@ static void map_region(struct dm_io_region *io, struct mirror *m, { io->bdev = m->dev->bdev; io->sector = map_sector(m, bio); - io->count = bio->bi_size >> 9; + io->count = bio_sectors(bio); } static void hold_bio(struct mirror_set *ms, struct bio *bio)
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index de63a1f..387cb89 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c@@ -484,11 +484,11 @@ static inline int is_io_in_chunk_boundary(struct mddev *mddev, { if (likely(is_power_of_2(chunk_sects))) { return chunk_sects >= ((bio->bi_sector & (chunk_sects-1)) - + (bio->bi_size >> 9)); + + bio_sectors(bio)); } else{ sector_t sector = bio->bi_sector; return chunk_sects >= (sector_div(sector, chunk_sects) - + (bio->bi_size >> 9)); + + bio_sectors(bio)); } }
@@ -542,7 +542,7 @@ bad_map: printk("md/raid0:%s: make_request bug: can't convert block across chunks" " or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects / 2, - (unsigned long long)bio->bi_sector, bio->bi_size >> 10); + (unsigned long long)bio->bi_sector, bio_sectors(bio) / 2); bio_io_error(bio); return;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a242578..2488440 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c@@ -267,7 +267,7 @@ static void raid_end_bio_io(struct r1bio *r1_bio) (bio_data_dir(bio) == WRITE) ? "write" : "read", (unsigned long long) bio->bi_sector, (unsigned long long) bio->bi_sector + - (bio->bi_size >> 9) - 1); + bio_sectors(bio) - 1); call_bio_endio(r1_bio); }
@@ -458,7 +458,7 @@ static void raid1_end_write_request(struct bio *bio, int error) " %llu-%llu\n", (unsigned long long) mbio->bi_sector, (unsigned long long) mbio->bi_sector + - (mbio->bi_size >> 9) - 1); + bio_sectors(mbio) - 1); call_bio_endio(r1_bio); } }
@@ -1041,7 +1041,7 @@ static void make_request(struct mddev *mddev, struct bio * bio) r1_bio = mempool_alloc(conf->r1bio_pool, GFP_NOIO); r1_bio->master_bio = bio; - r1_bio->sectors = bio->bi_size >> 9; + r1_bio->sectors = bio_sectors(bio); r1_bio->state = 0; r1_bio->mddev = mddev; r1_bio->sector = bio->bi_sector;
@@ -1119,7 +1119,7 @@ read_again: r1_bio = mempool_alloc(conf->r1bio_pool, GFP_NOIO); r1_bio->master_bio = bio; - r1_bio->sectors = (bio->bi_size >> 9) - sectors_handled; + r1_bio->sectors = bio_sectors(bio) - sectors_handled; r1_bio->state = 0; r1_bio->mddev = mddev; r1_bio->sector = bio->bi_sector + sectors_handled;
@@ -1320,14 +1320,14 @@ read_again: /* Mustn't call r1_bio_write_done before this next test, * as it could result in the bio being freed. */ - if (sectors_handled < (bio->bi_size >> 9)) { + if (sectors_handled < bio_sectors(bio)) { r1_bio_write_done(r1_bio); /* We need another r1_bio. It has already been counted * in bio->bi_phys_segments */ r1_bio = mempool_alloc(conf->r1bio_pool, GFP_NOIO); r1_bio->master_bio = bio; - r1_bio->sectors = (bio->bi_size >> 9) - sectors_handled; + r1_bio->sectors = bio_sectors(bio) - sectors_handled; r1_bio->state = 0; r1_bio->mddev = mddev; r1_bio->sector = bio->bi_sector + sectors_handled;
@@ -1936,7 +1936,7 @@ static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio) wbio->bi_rw = WRITE; wbio->bi_end_io = end_sync_write; atomic_inc(&r1_bio->remaining); - md_sync_acct(conf->mirrors[i].rdev->bdev, wbio->bi_size >> 9); + md_sync_acct(conf->mirrors[i].rdev->bdev, bio_sectors(wbio)); generic_make_request(wbio); }
@@ -2272,8 +2272,7 @@ read_more: r1_bio = mempool_alloc(conf->r1bio_pool, GFP_NOIO); r1_bio->master_bio = mbio; - r1_bio->sectors = (mbio->bi_size >> 9) - - sectors_handled; + r1_bio->sectors = bio_sectors(mbio) - sectors_handled; r1_bio->state = 0; set_bit(R1BIO_ReadError, &r1_bio->state); r1_bio->mddev = mddev;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1c2eb38..9715aaf 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c@@ -1075,7 +1075,7 @@ static void make_request(struct mddev *mddev, struct bio * bio) /* If this request crosses a chunk boundary, we need to * split it. This will only happen for 1 PAGE (or less) requests. */ - if (unlikely((bio->bi_sector & chunk_mask) + (bio->bi_size >> 9) + if (unlikely((bio->bi_sector & chunk_mask) + bio_sectors(bio) > chunk_sects && (conf->geo.near_copies < conf->geo.raid_disks || conf->prev.near_copies < conf->prev.raid_disks))) {
@@ -1115,7 +1115,7 @@ static void make_request(struct mddev *mddev, struct bio * bio) bad_map: printk("md/raid10:%s: make_request bug: can't convert block across chunks" " or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects/2, - (unsigned long long)bio->bi_sector, bio->bi_size >> 10); + (unsigned long long)bio->bi_sector, bio_sectors(bio) / 2); bio_io_error(bio); return;
@@ -1130,7 +1130,7 @@ static void make_request(struct mddev *mddev, struct bio * bio) */ wait_barrier(conf); - sectors = bio->bi_size >> 9; + sectors = bio_sectors(bio); while (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) && bio->bi_sector < conf->reshape_progress && bio->bi_sector + sectors > conf->reshape_progress) {
@@ -1232,8 +1232,7 @@ read_again: r10_bio = mempool_alloc(conf->r10bio_pool, GFP_NOIO); r10_bio->master_bio = bio; - r10_bio->sectors = ((bio->bi_size >> 9) - - sectors_handled); + r10_bio->sectors = bio_sectors(bio) - sectors_handled; r10_bio->state = 0; r10_bio->mddev = mddev; r10_bio->sector = bio->bi_sector + sectors_handled;
@@ -1455,7 +1454,7 @@ retry_write: * after checking if we need to go around again. */ - if (sectors_handled < (bio->bi_size >> 9)) { + if (sectors_handled < bio_sectors(bio)) { one_write_done(r10_bio); /* We need another r10_bio. It has already been counted * in bio->bi_phys_segments.
@@ -1463,7 +1462,7 @@ retry_write: r10_bio = mempool_alloc(conf->r10bio_pool, GFP_NOIO); r10_bio->master_bio = bio; - r10_bio->sectors = (bio->bi_size >> 9) - sectors_handled; + r10_bio->sectors = bio_sectors(bio) - sectors_handled; r10_bio->mddev = mddev; r10_bio->sector = bio->bi_sector + sectors_handled;
@@ -1984,7 +1983,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) d = r10_bio->devs[i].devnum; atomic_inc(&conf->mirrors[d].rdev->nr_pending); atomic_inc(&r10_bio->remaining); - md_sync_acct(conf->mirrors[d].rdev->bdev, tbio->bi_size >> 9); + md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(tbio)); tbio->bi_sector += conf->mirrors[d].rdev->data_offset; tbio->bi_bdev = conf->mirrors[d].rdev->bdev;
@@ -2009,7 +2008,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) d = r10_bio->devs[i].devnum; atomic_inc(&r10_bio->remaining); md_sync_acct(conf->mirrors[d].replacement->bdev, - tbio->bi_size >> 9); + bio_sectors(tbio)); generic_make_request(tbio); }
@@ -2135,13 +2134,13 @@ static void recovery_request_write(struct mddev *mddev, struct r10bio *r10_bio) wbio2 = r10_bio->devs[1].repl_bio; if (wbio->bi_end_io) { atomic_inc(&conf->mirrors[d].rdev->nr_pending); - md_sync_acct(conf->mirrors[d].rdev->bdev, wbio->bi_size >> 9); + md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(wbio)); generic_make_request(wbio); } if (wbio2 && wbio2->bi_end_io) { atomic_inc(&conf->mirrors[d].replacement->nr_pending); md_sync_acct(conf->mirrors[d].replacement->bdev, - wbio2->bi_size >> 9); + bio_sectors(wbio2)); generic_make_request(wbio2); } }
@@ -2571,8 +2570,7 @@ read_more: r10_bio = mempool_alloc(conf->r10bio_pool, GFP_NOIO); r10_bio->master_bio = mbio; - r10_bio->sectors = (mbio->bi_size >> 9) - - sectors_handled; + r10_bio->sectors = bio_sectors(mbio) - sectors_handled; r10_bio->state = 0; set_bit(R10BIO_ReadError, &r10_bio->state);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 7b36e2a..7c19dbe 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c@@ -88,7 +88,7 @@ static inline struct hlist_head *stripe_hash(struct r5conf *conf, sector_t sect) */ static inline struct bio *r5_next_bio(struct bio *bio, sector_t sector) { - int sectors = bio->bi_size >> 9; + int sectors = bio_sectors(bio); if (bio->bi_sector + sectors < sector + STRIPE_SECTORS) return bio->bi_next; else
@@ -3771,7 +3771,7 @@ static int in_chunk_boundary(struct mddev *mddev, struct bio *bio) { sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev); unsigned int chunk_sectors = mddev->chunk_sectors; - unsigned int bio_sectors = bio->bi_size >> 9; + unsigned int bio_sectors = bio_sectors(bio); if (mddev->new_chunk_sectors < mddev->chunk_sectors) chunk_sectors = mddev->new_chunk_sectors;
@@ -3861,7 +3861,7 @@ static int bio_fits_rdev(struct bio *bi) { struct request_queue *q = bdev_get_queue(bi->bi_bdev); - if ((bi->bi_size>>9) > queue_max_sectors(q)) + if (bio_sectors(bi) > queue_max_sectors(q)) return 0; blk_recount_segments(q, bi); if (bi->bi_phys_segments > queue_max_segments(q))
@@ -3931,7 +3931,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) align_bi->bi_flags &= ~(1 << BIO_SEG_VALID); if (!bio_fits_rdev(align_bi) || - is_badblock(rdev, align_bi->bi_sector, align_bi->bi_size>>9, + is_badblock(rdev, align_bi->bi_sector, bio_sectors(align_bi), &first_bad, &bad_sectors)) { /* too big in some way, or has a known bad block */ bio_put(align_bi);
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 05c5e61..3c210ac 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h@@ -193,7 +193,7 @@ TRACE_EVENT(block_bio_bounce, __entry->dev = bio->bi_bdev ? bio->bi_bdev->bd_dev : 0; __entry->sector = bio->bi_sector; - __entry->nr_sector = bio->bi_size >> 9; + __entry->nr_sector = bio_sectors(bio); blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size); memcpy(__entry->comm, current->comm, TASK_COMM_LEN); ),
@@ -230,7 +230,7 @@ TRACE_EVENT(block_bio_complete, TP_fast_assign( __entry->dev = bio->bi_bdev->bd_dev; __entry->sector = bio->bi_sector; - __entry->nr_sector = bio->bi_size >> 9; + __entry->nr_sector = bio_sectors(bio); __entry->error = error; blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size); ),
@@ -258,7 +258,7 @@ DECLARE_EVENT_CLASS(block_bio, TP_fast_assign( __entry->dev = bio->bi_bdev->bd_dev; __entry->sector = bio->bi_sector; - __entry->nr_sector = bio->bi_size >> 9; + __entry->nr_sector = bio_sectors(bio); blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size); memcpy(__entry->comm, current->comm, TASK_COMM_LEN); ),
@@ -330,7 +330,7 @@ DECLARE_EVENT_CLASS(block_get_rq, TP_fast_assign( __entry->dev = bio ? bio->bi_bdev->bd_dev : 0; __entry->sector = bio ? bio->bi_sector : 0; - __entry->nr_sector = bio ? bio->bi_size >> 9 : 0; + __entry->nr_sector = bio ? bio_sectors(bio) : 0; blk_fill_rwbs(__entry->rwbs, bio ? bio->bi_rw : 0, __entry->nr_sector); memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
@@ -506,7 +506,7 @@ TRACE_EVENT(block_bio_remap, TP_fast_assign( __entry->dev = bio->bi_bdev->bd_dev; __entry->sector = bio->bi_sector; - __entry->nr_sector = bio->bi_size >> 9; + __entry->nr_sector = bio_sectors(bio); __entry->old_dev = dev; __entry->old_sector = from; blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
--
1.7.12