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authorChristoph Hellwig <hch@lst.de>2022-07-27 19:22:57 +0300
committerJens Axboe <axboe@kernel.dk>2022-08-03 06:08:49 +0300
commit46754bd056053785d7079f1d48f7f571728dcb47 (patch)
tree19ace24d9b5561c42c727d066d971940b96a0854 /block
parent51d798cdb5c219000fe76a3ffbcaa846b689ba80 (diff)
downloadlinux-46754bd056053785d7079f1d48f7f571728dcb47.tar.xz
block: move ->bio_split to the gendisk
Only non-passthrough requests are split by the block layer and use the ->bio_split bio_set. Move it from the request_queue to the gendisk. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20220727162300.3089193-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-core.c9
-rw-r--r--block/blk-merge.c7
-rw-r--r--block/blk-sysfs.c2
-rw-r--r--block/genhd.c8
4 files changed, 12 insertions, 14 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 3d286a256d3d..a0d1104c5590 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -377,7 +377,6 @@ static void blk_timeout_work(struct work_struct *work)
struct request_queue *blk_alloc_queue(int node_id, bool alloc_srcu)
{
struct request_queue *q;
- int ret;
q = kmem_cache_alloc_node(blk_get_queue_kmem_cache(alloc_srcu),
GFP_KERNEL | __GFP_ZERO, node_id);
@@ -396,13 +395,9 @@ struct request_queue *blk_alloc_queue(int node_id, bool alloc_srcu)
if (q->id < 0)
goto fail_srcu;
- ret = bioset_init(&q->bio_split, BIO_POOL_SIZE, 0, 0);
- if (ret)
- goto fail_id;
-
q->stats = blk_alloc_queue_stats();
if (!q->stats)
- goto fail_split;
+ goto fail_id;
q->node = node_id;
@@ -439,8 +434,6 @@ struct request_queue *blk_alloc_queue(int node_id, bool alloc_srcu)
fail_stats:
blk_free_queue_stats(q->stats);
-fail_split:
- bioset_exit(&q->bio_split);
fail_id:
ida_free(&blk_queue_ida, q->id);
fail_srcu:
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6e29fb28584e..30872a353764 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -331,18 +331,19 @@ split:
struct bio *__bio_split_to_limits(struct bio *bio, struct request_queue *q,
unsigned int *nr_segs)
{
+ struct bio_set *bs = &bio->bi_bdev->bd_disk->bio_split;
struct bio *split;
switch (bio_op(bio)) {
case REQ_OP_DISCARD:
case REQ_OP_SECURE_ERASE:
- split = bio_split_discard(bio, q, nr_segs, &q->bio_split);
+ split = bio_split_discard(bio, q, nr_segs, bs);
break;
case REQ_OP_WRITE_ZEROES:
- split = bio_split_write_zeroes(bio, q, nr_segs, &q->bio_split);
+ split = bio_split_write_zeroes(bio, q, nr_segs, bs);
break;
default:
- split = bio_split_rw(bio, q, nr_segs, &q->bio_split);
+ split = bio_split_rw(bio, q, nr_segs, bs);
break;
}
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index c0303026752d..e1f009aba6fd 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -779,8 +779,6 @@ static void blk_release_queue(struct kobject *kobj)
if (queue_is_mq(q))
blk_mq_release(q);
- bioset_exit(&q->bio_split);
-
if (blk_queue_has_srcu(q))
cleanup_srcu_struct(q->srcu);
diff --git a/block/genhd.c b/block/genhd.c
index e1d5b10ac193..b901fea1d55a 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1151,6 +1151,7 @@ static void disk_release(struct device *dev)
blk_mq_exit_queue(disk->queue);
blkcg_exit_queue(disk->queue);
+ bioset_exit(&disk->bio_split);
disk_release_events(disk);
kfree(disk->random);
@@ -1342,9 +1343,12 @@ struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id,
if (!disk)
goto out_put_queue;
+ if (bioset_init(&disk->bio_split, BIO_POOL_SIZE, 0, 0))
+ goto out_free_disk;
+
disk->bdi = bdi_alloc(node_id);
if (!disk->bdi)
- goto out_free_disk;
+ goto out_free_bioset;
/* bdev_alloc() might need the queue, set before the first call */
disk->queue = q;
@@ -1382,6 +1386,8 @@ out_destroy_part_tbl:
iput(disk->part0->bd_inode);
out_free_bdi:
bdi_put(disk->bdi);
+out_free_bioset:
+ bioset_exit(&disk->bio_split);
out_free_disk:
kfree(disk);
out_put_queue: