AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

blk: remove bio_set arg from blk_queue_split()

Browse Source 
blk_queue_split() is always called with the last arg being q->bio_split,
where 'q' is the first arg.

Also blk_queue_split() sometimes uses the passed-in 'bs' and sometimes uses
q->bio_split.

This is inconsistent and unnecessary.  Remove the last arg and always use
q->bio_split inside blk_queue_split()

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Credit-to: Javier González <jg@lightnvm.io> (Noticed that lightnvm was missed)
Reviewed-by: Javier González <javier@cnexlabs.com>
Tested-by: Javier González <javier@cnexlabs.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
NeilBrown 2017-06-18 14:38:57 +10:00 committed by Jens Axboe
parent e4cdf1a1cb
commit af67c31fba
14 changed files with 18 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
block/blk-core.c
View File

@ -1723,7 +1723,7 @@ static blk_qc_t blk_queue_bio(struct request_queue *q, struct bio *bio)
*/
blk_queue_bounce(q, &bio);
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
bio->bi_status = BLK_STS_IOERR;

9
block/blk-merge.c
View File

@ -202,8 +202,7 @@ static struct bio *blk_bio_segment_split(struct request_queue *q,
return do_split ? new : NULL;
}
void blk_queue_split(struct request_queue *q, struct bio **bio,
struct bio_set *bs)
void blk_queue_split(struct request_queue *q, struct bio **bio)
{
struct bio *split, *res;
unsigned nsegs;
@ -211,13 +210,13 @@ void blk_queue_split(struct request_queue *q, struct bio **bio,
switch (bio_op(*bio)) {
case REQ_OP_DISCARD:
case REQ_OP_SECURE_ERASE:
split = blk_bio_discard_split(q, *bio, bs, &nsegs);
split = blk_bio_discard_split(q, *bio, q->bio_split, &nsegs);
break;
case REQ_OP_WRITE_ZEROES:
split = blk_bio_write_zeroes_split(q, *bio, bs, &nsegs);
split = blk_bio_write_zeroes_split(q, *bio, q->bio_split, &nsegs);
break;
case REQ_OP_WRITE_SAME:
split = blk_bio_write_same_split(q, *bio, bs, &nsegs);
split = blk_bio_write_same_split(q, *bio, q->bio_split, &nsegs);
break;
default:
split = blk_bio_segment_split(q, *bio, q->bio_split, &nsegs);

2
block/blk-mq.c
View File

@ -1499,7 +1499,7 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
blk_queue_bounce(q, &bio);
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
bio_io_error(bio);

2
drivers/block/drbd/drbd_req.c
View File

@ -1560,7 +1560,7 @@ blk_qc_t drbd_make_request(struct request_queue *q, struct bio *bio)
struct drbd_device *device = (struct drbd_device *) q->queuedata;
unsigned long start_jif;
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
start_jif = jiffies;

2
drivers/block/pktcdvd.c
View File

@ -2414,7 +2414,7 @@ static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
blk_queue_bounce(q, &bio);
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
pd = q->queuedata;
if (!pd) {

2
drivers/block/ps3vram.c
View File

@ -606,7 +606,7 @@ static blk_qc_t ps3vram_make_request(struct request_queue *q, struct bio *bio)
dev_dbg(&dev->core, "%s\n", __func__);
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
spin_lock_irq(&priv->lock);
busy = !bio_list_empty(&priv->list);

2
drivers/block/rsxx/dev.c
View File

@ -151,7 +151,7 @@ static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
struct rsxx_bio_meta *bio_meta;
blk_status_t st = BLK_STS_IOERR;
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
might_sleep();

2
drivers/block/umem.c
View File

@ -529,7 +529,7 @@ static blk_qc_t mm_make_request(struct request_queue *q, struct bio *bio)
(unsigned long long)bio->bi_iter.bi_sector,
bio->bi_iter.bi_size);
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
spin_lock_irq(&card->lock);
*card->biotail = bio;

4
drivers/lightnvm/pblk-init.c
View File

@ -33,7 +33,7 @@ static int pblk_rw_io(struct request_queue *q, struct pblk *pblk,
* constraint. Writes can be of arbitrary size.
*/
if (bio_data_dir(bio) == READ) {
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
ret = pblk_submit_read(pblk, bio);
if (ret == NVM_IO_DONE && bio_flagged(bio, BIO_CLONED))
bio_put(bio);
@ -46,7 +46,7 @@ static int pblk_rw_io(struct request_queue *q, struct pblk *pblk,
* available for user I/O.
*/
if (unlikely(pblk_get_secs(bio) >= pblk_rl_sysfs_rate_show(&pblk->rl)))
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
return pblk_write_to_cache(pblk, bio, PBLK_IOTYPE_USER);
}

2
drivers/lightnvm/rrpc.c
View File

@ -994,7 +994,7 @@ static blk_qc_t rrpc_make_rq(struct request_queue *q, struct bio *bio)
struct nvm_rq *rqd;
int err;
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
if (bio_op(bio) == REQ_OP_DISCARD) {
rrpc_discard(rrpc, bio);

2
drivers/md/md.c
View File

@ -265,7 +265,7 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
unsigned int sectors;
int cpu;
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
if (mddev == NULL || mddev->pers == NULL) {
bio_io_error(bio);

2
drivers/s390/block/dcssblk.c
View File

@ -845,7 +845,7 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio)
unsigned long source_addr;
unsigned long bytes_done;
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
bytes_done = 0;
dev_info = bio->bi_bdev->bd_disk->private_data;

2
drivers/s390/block/xpram.c
View File

@ -190,7 +190,7 @@ static blk_qc_t xpram_make_request(struct request_queue *q, struct bio *bio)
unsigned long page_addr;
unsigned long bytes;
blk_queue_split(q, &bio, q->bio_split);
blk_queue_split(q, &bio);
if ((bio->bi_iter.bi_sector & 7) != 0 ||
(bio->bi_iter.bi_size & 4095) != 0)

3
include/linux/blkdev.h
View File

@ -944,8 +944,7 @@ extern blk_status_t blk_insert_cloned_request(struct request_queue *q,
struct request *rq);
extern int blk_rq_append_bio(struct request *rq, struct bio *bio);
extern void blk_delay_queue(struct request_queue *, unsigned long);
extern void blk_queue_split(struct request_queue *, struct bio **,
struct bio_set *);
extern void blk_queue_split(struct request_queue *, struct bio **);
extern void blk_recount_segments(struct request_queue *, struct bio *);
extern int scsi_verify_blk_ioctl(struct block_device *, unsigned int);
extern int scsi_cmd_blk_ioctl(struct block_device *, fmode_t,