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blktrace: from-sector redundant in trace_block_remap 

Remove redundant from-sector parameter: it's /always/ the bio's sector
passed in.

[ Impact: cleanup ]

Signed-off-by: Alan D. Brunelle <alan.brunelle@hp.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <49FF517C.7000503@hp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Alan D. Brunelle 2009-05-04 16:35:08 -04:00 committed by Ingo Molnar
parent a42aaa3bbc
commit 22a7c31a96
4 changed files with 9 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
block/blk-core.c
View File

@ -1275,7 +1275,7 @@ static inline void blk_partition_remap(struct bio *bio)
bio->bi_bdev = bdev->bd_contains;
trace_block_remap(bdev_get_queue(bio->bi_bdev), bio,
bdev->bd_dev, bio->bi_sector,
bdev->bd_dev,
bio->bi_sector - p->start_sect);
}
}
@ -1444,8 +1444,7 @@ static inline void __generic_make_request(struct bio *bio)
goto end_io;
if (old_sector != -1)
trace_block_remap(q, bio, old_dev, bio->bi_sector,
old_sector);
trace_block_remap(q, bio, old_dev, old_sector);
trace_block_bio_queue(q, bio);

3
drivers/md/dm.c
View File

@ -657,8 +657,7 @@ static void __map_bio(struct dm_target *ti, struct bio *clone,
/* the bio has been remapped so dispatch it */
trace_block_remap(bdev_get_queue(clone->bi_bdev), clone,
tio->io->bio->bi_bdev->bd_dev,
clone->bi_sector, sector);
tio->io->bio->bi_bdev->bd_dev, sector);
generic_make_request(clone);
} else if (r < 0 || r == DM_MAPIO_REQUEUE) {

4
include/trace/block.h
View File

@ -70,7 +70,7 @@ DECLARE_TRACE(block_split,
DECLARE_TRACE(block_remap,
TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
sector_t to, sector_t from),
TP_ARGS(q, bio, dev, to, from));
sector_t to),
TP_ARGS(q, bio, dev, to));
#endif

8
kernel/trace/blktrace.c
View File

@ -830,7 +830,6 @@ static void blk_add_trace_split(struct request_queue *q, struct bio *bio,
* @q: queue the io is for
* @bio: the source bio
* @dev: target device
* @to: target sector
* @from: source sector
*
* Description:
@ -839,7 +838,7 @@ static void blk_add_trace_split(struct request_queue *q, struct bio *bio,
*
**/
static void blk_add_trace_remap(struct request_queue *q, struct bio *bio,
dev_t dev, sector_t to, sector_t from)
dev_t dev, sector_t from)
{
struct blk_trace *bt = q->blk_trace;
struct blk_io_trace_remap r;
@ -851,8 +850,9 @@ static void blk_add_trace_remap(struct request_queue *q, struct bio *bio,
r.device_to = cpu_to_be32(bio->bi_bdev->bd_dev);
r.sector_from = cpu_to_be64(from);
__blk_add_trace(bt, from, bio->bi_size, bio->bi_rw, BLK_TA_REMAP,
!bio_flagged(bio, BIO_UPTODATE), sizeof(r), &r);
__blk_add_trace(bt, bio->bi_sector, bio->bi_size, bio->bi_rw,
BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE),
sizeof(r), &r);
}
/**