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Message-Id: <1345655050-28199-10-git-send-email-koverstreet@google.com>
Date: Wed, 22 Aug 2012 10:04:06 -0700
From: Kent Overstreet <koverstreet@...gle.com>
To: linux-bcache@...r.kernel.org, linux-kernel@...r.kernel.org,
dm-devel@...hat.com
Cc: Kent Overstreet <koverstreet@...gle.com>, tj@...nel.org,
vgoyal@...hat.com, mpatocka@...hat.com, bharrosh@...asas.com,
Jens Axboe <axboe@...nel.dk>, NeilBrown <neilb@...e.de>,
Alasdair Kergon <agk@...hat.com>,
Lars Ellenberg <lars.ellenberg@...bit.com>,
Peter Osterlund <petero2@...ia.com>,
Sage Weil <sage@...tank.com>
Subject: [PATCH v6 09/13] block: Rename bio_split() -> bio_pair_split()
This is prep work for introducing a more general bio_split()
Signed-off-by: Kent Overstreet <koverstreet@...gle.com>
CC: Jens Axboe <axboe@...nel.dk>
CC: NeilBrown <neilb@...e.de>
CC: Alasdair Kergon <agk@...hat.com>
CC: Lars Ellenberg <lars.ellenberg@...bit.com>
CC: Peter Osterlund <petero2@...ia.com>
CC: Sage Weil <sage@...tank.com>
---
drivers/block/drbd/drbd_req.c | 2 +-
drivers/block/pktcdvd.c | 2 +-
drivers/block/rbd.c | 3 ++-
drivers/md/linear.c | 2 +-
drivers/md/raid0.c | 6 +++---
drivers/md/raid10.c | 4 ++--
fs/bio.c | 4 ++--
include/linux/bio.h | 2 +-
8 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 910335c..fbb0471 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1149,7 +1149,7 @@ void drbd_make_request(struct request_queue *q, struct bio *bio)
const int sps = 1 << HT_SHIFT; /* sectors per slot */
const int mask = sps - 1;
const sector_t first_sectors = sps - (sect & mask);
- bp = bio_split(bio, first_sectors);
+ bp = bio_pair_split(bio, first_sectors);
/* we need to get a "reference count" (ap_bio_cnt)
* to avoid races with the disconnect/reconnect/suspend code.
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index ae55f08..18393a1 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2469,7 +2469,7 @@ static void pkt_make_request(struct request_queue *q, struct bio *bio)
if (last_zone != zone) {
BUG_ON(last_zone != zone + pd->settings.size);
first_sectors = last_zone - bio->bi_sector;
- bp = bio_split(bio, first_sectors);
+ bp = bio_pair_split(bio, first_sectors);
BUG_ON(!bp);
pkt_make_request(q, &bp->bio1);
pkt_make_request(q, &bp->bio2);
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 9917943..1f5b483 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -751,7 +751,8 @@ static struct bio *bio_chain_clone(struct bio **old, struct bio **next,
/* split the bio. We'll release it either in the next
call, or it will have to be released outside */
- bp = bio_split(old_chain, (len - total) / SECTOR_SIZE);
+ bp = bio_pair_split(old_chain,
+ (len - total) / SECTOR_SIZE);
if (!bp)
goto err_out;
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index fa211d8..e860cb9 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -314,7 +314,7 @@ static void linear_make_request(struct mddev *mddev, struct bio *bio)
rcu_read_unlock();
- bp = bio_split(bio, end_sector - bio->bi_sector);
+ bp = bio_pair_split(bio, end_sector - bio->bi_sector);
linear_make_request(mddev, &bp->bio1);
linear_make_request(mddev, &bp->bio2);
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index de63a1f..c89c8aa 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -516,11 +516,11 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
* refuse to split for us, so we need to split it.
*/
if (likely(is_power_of_2(chunk_sects)))
- bp = bio_split(bio, chunk_sects - (sector &
+ bp = bio_pair_split(bio, chunk_sects - (sector &
(chunk_sects-1)));
else
- bp = bio_split(bio, chunk_sects -
- sector_div(sector, chunk_sects));
+ bp = bio_pair_split(bio, chunk_sects -
+ sector_div(sector, chunk_sects));
raid0_make_request(mddev, &bp->bio1);
raid0_make_request(mddev, &bp->bio2);
bio_pair_release(bp);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1c2eb38..0f31ec4 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1087,8 +1087,8 @@ static void make_request(struct mddev *mddev, struct bio * bio)
/* This is a one page bio that upper layers
* refuse to split for us, so we need to split it.
*/
- bp = bio_split(bio,
- chunk_sects - (bio->bi_sector & (chunk_sects - 1)) );
+ bp = bio_pair_split(bio,
+ chunk_sects - (bio->bi_sector & (chunk_sects - 1)) );
/* Each of these 'make_request' calls will call 'wait_barrier'.
* If the first succeeds but the second blocks due to the resync
diff --git a/fs/bio.c b/fs/bio.c
index b9c022c..2f2cf19 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1495,7 +1495,7 @@ static void bio_pair_end_2(struct bio *bi, int err)
/*
* split a bio - only worry about a bio with a single page in its iovec
*/
-struct bio_pair *bio_split(struct bio *bi, int first_sectors)
+struct bio_pair *bio_pair_split(struct bio *bi, int first_sectors)
{
struct bio_pair *bp = mempool_alloc(bio_split_pool, GFP_NOIO);
@@ -1538,7 +1538,7 @@ struct bio_pair *bio_split(struct bio *bi, int first_sectors)
return bp;
}
-EXPORT_SYMBOL(bio_split);
+EXPORT_SYMBOL(bio_pair_split);
/**
* bio_sector_offset - Find hardware sector offset in bio
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 427d05a..13f4188 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -201,7 +201,7 @@ struct bio_pair {
atomic_t cnt;
int error;
};
-extern struct bio_pair *bio_split(struct bio *bi, int first_sectors);
+extern struct bio_pair *bio_pair_split(struct bio *bi, int first_sectors);
extern void bio_pair_release(struct bio_pair *dbio);
extern struct bio_set *bioset_create(unsigned int, unsigned int);
--
1.7.12
--
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