From: NeilBrown <neilb@suse.com>
To: Jens Axboe <axboe@kernel.dk>, Jack Wang <jinpu.wang@profitbricks.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Lars Ellenberg <lars.ellenberg@linbit.com>,
Kent Overstreet <kent.overstreet@gmail.com>,
Pavel Machek <pavel@ucw.cz>, Mike Snitzer <snitzer@redhat.com>,
Mikulas Patocka <mpatocka@redhat.com>,
linux-raid@vger.kernel.org,
device-mapper development <dm-devel@redhat.com>,
linux-block@vger.kernel.org
Subject: [PATCH 2/5] blk: remove bio_set arg from blk_queue_split()
Date: Fri, 10 Mar 2017 15:34:38 +1100 [thread overview]
Message-ID: <877f3xhhr5.fsf@notabene.neil.brown.name> (raw)
In-Reply-To: <87d1dphhuy.fsf@notabene.neil.brown.name>
[-- Attachment #1: Type: text/plain, Size: 8745 bytes --]
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()
Signed-off-by: NeilBrown <neilb@suse.com>
---
block/blk-core.c | 2 +-
block/blk-merge.c | 7 +++----
block/blk-mq.c | 4 ++--
drivers/block/drbd/drbd_req.c | 2 +-
drivers/block/pktcdvd.c | 2 +-
drivers/block/ps3vram.c | 2 +-
drivers/block/rsxx/dev.c | 2 +-
drivers/block/umem.c | 2 +-
drivers/block/zram/zram_drv.c | 2 +-
drivers/lightnvm/rrpc.c | 2 +-
drivers/md/md.c | 2 +-
drivers/s390/block/dcssblk.c | 2 +-
drivers/s390/block/xpram.c | 2 +-
include/linux/blkdev.h | 3 +--
14 files changed, 17 insertions(+), 19 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index bd2cb4ba674e..375006c94c15 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1637,7 +1637,7 @@ 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_error = -EIO;
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 2afa262425d1..ce8838aff7f7 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -188,8 +188,7 @@ 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;
@@ -197,14 +196,14 @@ 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 = NULL;
nsegs = (*bio)->bi_phys_segments;
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);
diff --git a/block/blk-mq.c b/block/blk-mq.c
index b2fd175e84d7..ef7b289e873c 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1502,7 +1502,7 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
return BLK_QC_T_NONE;
}
- blk_queue_split(q, &bio, q->bio_split);
+ blk_queue_split(q, &bio);
if (!is_flush_fua && !blk_queue_nomerges(q) &&
blk_attempt_plug_merge(q, bio, &request_count, &same_queue_rq))
@@ -1624,7 +1624,7 @@ static blk_qc_t blk_sq_make_request(struct request_queue *q, struct bio *bio)
return BLK_QC_T_NONE;
}
- blk_queue_split(q, &bio, q->bio_split);
+ blk_queue_split(q, &bio);
if (!is_flush_fua && !blk_queue_nomerges(q)) {
if (blk_attempt_plug_merge(q, bio, &request_count, NULL))
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 652114ae1a8a..f6ed6f7f5ab2 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1554,7 +1554,7 @@ 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;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 66d846ba85a9..98394d034c29 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -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) {
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 456b4fe21559..48072c0c1010 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -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);
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index f81d70b39d10..8c8024f616ae 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -151,7 +151,7 @@ static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
struct rsxx_bio_meta *bio_meta;
int st = -EINVAL;
- blk_queue_split(q, &bio, q->bio_split);
+ blk_queue_split(q, &bio);
might_sleep();
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index c141cc3be22b..c8d8a2f16f8e 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -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;
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index e27d89a36c34..973dac2a9a99 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -880,7 +880,7 @@ static blk_qc_t zram_make_request(struct request_queue *queue, struct bio *bio)
{
struct zram *zram = queue->queuedata;
- blk_queue_split(queue, &bio, queue->bio_split);
+ blk_queue_split(queue, &bio);
if (!valid_io_request(zram, bio->bi_iter.bi_sector,
bio->bi_iter.bi_size)) {
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index e00b1d7b976f..701fa2fafbb2 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -999,7 +999,7 @@ 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);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 548d1b8014f8..d7d2bb51a58d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -253,7 +253,7 @@ 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);
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 415d10a67b7a..10ece6f3c7eb 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -829,7 +829,7 @@ 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;
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index b9d7e755c8a3..a48f0d40c1d2 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -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)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 796016e63c1d..63008a246403 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -934,8 +934,7 @@ extern int 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,
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next prev parent reply other threads:[~2017-03-10 4:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87h93blz6g.fsf@notabene.neil.brown.name>
[not found] ` <71562c2c-97f4-9a0a-32ec-30e0702ca575@profitbricks.com>
[not found] ` <87lgsjj9w8.fsf@notabene.neil.brown.name>
[not found] ` <a674456d-fb93-437e-c50e-195e7a035ba4@kernel.dk>
2017-03-07 20:38 ` [PATCH v2] blk: improve order of bio handling in generic_make_request() NeilBrown
2017-03-10 4:32 ` NeilBrown
2017-03-10 4:33 ` [PATCH 1/5 v3] " NeilBrown
2017-03-10 4:34 ` NeilBrown [this message]
2017-03-10 4:35 ` [PATCH 3/5] blk: make the bioset rescue_workqueue optional NeilBrown
2017-03-10 4:36 ` [PATCH 4/5] blk: use non-rescuing bioset for q->bio_split NeilBrown
2017-03-10 4:37 ` [PATCH 5/5] block_dev: make blkdev_dio_pool a non-rescuing bioset NeilBrown
2017-03-10 4:38 ` [PATCH v2] blk: improve order of bio handling in generic_make_request() Jens Axboe
2017-03-10 4:40 ` Jens Axboe
2017-03-10 5:19 ` NeilBrown
2017-03-10 12:34 ` Lars Ellenberg
2017-03-10 14:38 ` Mike Snitzer
2017-03-10 14:55 ` Mikulas Patocka
2017-03-10 15:07 ` Jack Wang
2017-03-10 15:35 ` Mike Snitzer
2017-03-10 18:51 ` Lars Ellenberg
2017-03-11 0:47 ` NeilBrown
2017-03-10 6:00 [PATCH 0/5] Updates following recent generic_make_request improvement NeilBrown
2017-03-10 6:00 ` [PATCH 2/5] blk: remove bio_set arg from blk_queue_split() NeilBrown
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