block: add a bio_init_inline helper

Just a simpler wrapper around bio_init for callers that want to
initialize a bio with inline bvecs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

10 files changed, 11 insertions, 13 deletions

diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 7510d1c983a5..f327456fc4e0 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -115,8 +115,7 @@ void bch_data_verify(struct cached_dev *dc, struct bio *bio)
 	check = bio_kmalloc(nr_segs, GFP_NOIO);
 	if (!check)
 		return;
-	bio_init(check, bio->bi_bdev, check->bi_inline_vecs, nr_segs,
-		 REQ_OP_READ);
+	bio_init_inline(check, bio->bi_bdev, nr_segs, REQ_OP_READ);
 	check->bi_iter.bi_sector = bio->bi_iter.bi_sector;
 	check->bi_iter.bi_size = bio->bi_iter.bi_size;
 
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index 020712c5203f..2386d08bf4e4 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -26,8 +26,7 @@ struct bio *bch_bbio_alloc(struct cache_set *c)
 	struct bbio *b = mempool_alloc(&c->bio_meta, GFP_NOIO);
 	struct bio *bio = &b->bio;
 
-	bio_init(bio, NULL, bio->bi_inline_vecs,
-		 meta_bucket_pages(&c->cache->sb), 0);
+	bio_init_inline(bio, NULL, meta_bucket_pages(&c->cache->sb), 0);
 
 	return bio;
 }
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 7ff14bd2feb8..d50eb82ccb4f 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -615,7 +615,7 @@ static void do_journal_discard(struct cache *ca)
 
 		atomic_set(&ja->discard_in_flight, DISCARD_IN_FLIGHT);
 
-		bio_init(bio, ca->bdev, bio->bi_inline_vecs, 1, REQ_OP_DISCARD);
+		bio_init_inline(bio, ca->bdev, 1, REQ_OP_DISCARD);
 		bio->bi_iter.bi_sector	= bucket_to_sector(ca->set,
 						ca->sb.d[ja->discard_idx]);
 		bio->bi_iter.bi_size	= bucket_bytes(ca);
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 26a6a535ec32..4fc80c6d5b31 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -79,7 +79,7 @@ static void moving_init(struct moving_io *io)
 {
 	struct bio *bio = &io->bio.bio;
 
-	bio_init(bio, NULL, bio->bi_inline_vecs,
+	bio_init_inline(bio, NULL,
 		 DIV_ROUND_UP(KEY_SIZE(&io->w->key), PAGE_SECTORS), 0);
 	bio_get(bio);
 	bio->bi_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 1492c8552255..6d250e366412 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2236,7 +2236,7 @@ static int cache_alloc(struct cache *ca)
 	__module_get(THIS_MODULE);
 	kobject_init(&ca->kobj, &bch_cache_ktype);
 
-	bio_init(&ca->journal.bio, NULL, ca->journal.bio.bi_inline_vecs, 8, 0);
+	bio_init_inline(&ca->journal.bio, NULL, 8, 0);
 
 	/*
 	 * When the cache disk is first registered, ca->sb.njournal_buckets
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 302e75f1fc4b..36dd8f14a6df 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -331,7 +331,7 @@ static void dirty_init(struct keybuf_key *w)
 	struct dirty_io *io = w->private;
 	struct bio *bio = &io->bio;
 
-	bio_init(bio, NULL, bio->bi_inline_vecs,
+	bio_init_inline(bio, NULL,
 		 DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS), 0);
 	if (!io->dc->writeback_percent)
 		bio->bi_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0);
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index ff7595caf440..8f3a23f4b168 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1342,7 +1342,7 @@ static void use_bio(struct dm_buffer *b, enum req_op op, sector_t sector,
 		use_dmio(b, op, sector, n_sectors, offset, ioprio);
 		return;
 	}
-	bio_init(bio, b->c->bdev, bio->bi_inline_vecs, 1, op);
+	bio_init_inline(bio, b->c->bdev, 1, op);
 	bio->bi_iter.bi_sector = sector;
 	bio->bi_end_io = bio_complete;
 	bio->bi_private = b;
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index cf17fd46e255..08925aca838c 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -441,7 +441,7 @@ static struct bio *clone_bio(struct dm_target *ti, struct flakey_c *fc, struct b
 	if (!clone)
 		return NULL;
 
-	bio_init(clone, fc->dev->bdev, clone->bi_inline_vecs, nr_iovecs, bio->bi_opf);
+	bio_init_inline(clone, fc->dev->bdev, nr_iovecs, bio->bi_opf);
 
 	clone->bi_iter.bi_sector = flakey_map_sector(ti, bio->bi_iter.bi_sector);
 	clone->bi_private = bio;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 408c26398321..bc11aaa38615 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -167,7 +167,7 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
 		bio = bio_kmalloc(RESYNC_PAGES, gfp_flags);
 		if (!bio)
 			goto out_free_bio;
-		bio_init(bio, NULL, bio->bi_inline_vecs, RESYNC_PAGES, 0);
+		bio_init_inline(bio, NULL, RESYNC_PAGES, 0);
 		r1_bio->bios[j] = bio;
 	}
 	/*
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index b60c30bfb6c7..c52ccd12d86b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -163,14 +163,14 @@ static void * r10buf_pool_alloc(gfp_t gfp_flags, void *data)
 		bio = bio_kmalloc(RESYNC_PAGES, gfp_flags);
 		if (!bio)
 			goto out_free_bio;
-		bio_init(bio, NULL, bio->bi_inline_vecs, RESYNC_PAGES, 0);
+		bio_init_inline(bio, NULL, RESYNC_PAGES, 0);
 		r10_bio->devs[j].bio = bio;
 		if (!conf->have_replacement)
 			continue;
 		bio = bio_kmalloc(RESYNC_PAGES, gfp_flags);
 		if (!bio)
 			goto out_free_bio;
-		bio_init(bio, NULL, bio->bi_inline_vecs, RESYNC_PAGES, 0);
+		bio_init_inline(bio, NULL, RESYNC_PAGES, 0);
 		r10_bio->devs[j].repl_bio = bio;
 	}
 	/*