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authorKent Overstreet <koverstreet@google.com>2013-02-05 15:19:29 -0800
committerKent Overstreet <koverstreet@google.com>2013-03-23 14:15:30 -0700
commitaa8b57aa3d1c06ca53312294ee6dfc767ee3ddb3 (patch)
treea5921d44756d32e0555a8ae284db3c16a8386860
parentf73a1c7d117d07a96d89475066188a2b79e53c48 (diff)
downloadvexpress-lsk-aa8b57aa3d1c06ca53312294ee6dfc767ee3ddb3.tar.gz
block: Use bio_sectors() more consistently
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 <koverstreet@google.com> CC: Jens Axboe <axboe@kernel.dk> CC: "Ed L. Cashin" <ecashin@coraid.com> CC: Nick Piggin <npiggin@kernel.dk> CC: Jiri Kosina <jkosina@suse.cz> CC: Jim Paris <jim@jtan.com> CC: Geoff Levand <geoff@infradead.org> CC: Alasdair Kergon <agk@redhat.com> CC: dm-devel@redhat.com CC: Neil Brown <neilb@suse.de> CC: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ed Cashin <ecashin@coraid.com>
-rw-r--r--drivers/block/pktcdvd.c2
-rw-r--r--drivers/md/dm-raid1.c2
-rw-r--r--drivers/md/raid0.c6
-rw-r--r--drivers/md/raid1.c17
-rw-r--r--drivers/md/raid10.c24
-rw-r--r--drivers/md/raid5.c8
-rw-r--r--fs/btrfs/volumes.c2
-rw-r--r--include/trace/events/block.h12
8 files changed, 35 insertions, 38 deletions
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 26938e8e2fc..2c27744b9ca 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/md/dm-raid1.c b/drivers/md/dm-raid1.c
index d053098c6a9..699b5be68d3 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -458,7 +458,7 @@ 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 0505452de8d..23a38afec35 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -502,11 +502,11 @@ 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));
}
}
@@ -567,7 +567,7 @@ 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 4d8c2e0a6ba..f741c9fe25c 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);
}
}
@@ -1049,7 +1049,7 @@ 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;
@@ -1127,7 +1127,7 @@ 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;
@@ -1329,14 +1329,14 @@ 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;
@@ -1947,7 +1947,7 @@ 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);
}
@@ -2284,8 +2284,7 @@ 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 77b562d18a9..5ee14ab16a0 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1169,7 +1169,7 @@ 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))) {
@@ -1209,7 +1209,7 @@ 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;
@@ -1224,7 +1224,7 @@ 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) {
@@ -1326,8 +1326,7 @@ 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;
@@ -1569,7 +1568,7 @@ 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.
@@ -1577,7 +1576,7 @@ 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;
@@ -2103,7 +2102,7 @@ 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;
@@ -2128,7 +2127,7 @@ 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);
}
@@ -2254,13 +2253,13 @@ 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);
}
}
@@ -2690,8 +2689,7 @@ 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 68706970d21..4e0f87e462c 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -90,7 +90,7 @@ 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
@@ -3804,7 +3804,7 @@ 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;
@@ -3894,7 +3894,7 @@ 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))
@@ -3964,7 +3964,7 @@ 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/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5989a92236f..d90e0485e01 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5166,7 +5166,7 @@ static int bio_size_ok(struct block_device *bdev, struct bio *bio,
}
prev = &bio->bi_io_vec[bio->bi_vcnt - 1];
- if ((bio->bi_size >> 9) > max_sectors)
+ if (bio_sectors(bio) > max_sectors)
return 0;
if (!q->merge_bvec_fn)
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 9961726523d..5a28843725d 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -244,7 +244,7 @@ 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);
),
@@ -281,7 +281,7 @@ TRACE_EVENT(block_bio_complete,
__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);
__entry->error = error;
blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
),
@@ -309,7 +309,7 @@ DECLARE_EVENT_CLASS(block_bio_merge,
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);
),
@@ -376,7 +376,7 @@ TRACE_EVENT(block_bio_queue,
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);
),
@@ -404,7 +404,7 @@ 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);
@@ -580,7 +580,7 @@ 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);