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authorJohn Garry <john.g.garry@oracle.com>2024-02-22 08:34:20 +0000
committerJens Axboe <axboe@kernel.dk>2024-02-22 10:08:47 -0700
commit0f225f87873ee95dd4cf94dfc6a3249d4289e4ea (patch)
treec1afe8fa988e2c7b834cc48d59f5689c43738f59
parent4068550870360410261638479ffaf8364c366dd8 (diff)
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null_blk: Delete nullb.{queue_depth, nr_queues}
Since commit 8b631f9cf0b8 ("null_blk: remove the bio based I/O path"), struct nullb members queue_depth and nr_queues are only ever written, so delete them. With that, null_exit_hctx() can also be deleted. Signed-off-by: John Garry <john.g.garry@oracle.com> Link: https://lore.kernel.org/r/20240222083420.6026-1-john.g.garry@oracle.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/block/null_blk/main.c11
-rw-r--r--drivers/block/null_blk/null_blk.h2
2 files changed, 0 insertions, 13 deletions
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index a0b726c8366c..71c39bcd872c 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -1620,14 +1620,6 @@ static void null_queue_rqs(struct request **rqlist)
*rqlist = requeue_list;
}
-static void null_exit_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
-{
- struct nullb_queue *nq = hctx->driver_data;
- struct nullb *nullb = nq->dev->nullb;
-
- nullb->nr_queues--;
-}
-
static void null_init_queue(struct nullb *nullb, struct nullb_queue *nq)
{
nq->dev = nullb->dev;
@@ -1647,7 +1639,6 @@ static int null_init_hctx(struct blk_mq_hw_ctx *hctx, void *driver_data,
nq = &nullb->queues[hctx_idx];
hctx->driver_data = nq;
null_init_queue(nullb, nq);
- nullb->nr_queues++;
return 0;
}
@@ -1660,7 +1651,6 @@ static const struct blk_mq_ops null_mq_ops = {
.poll = null_poll,
.map_queues = null_map_queues,
.init_hctx = null_init_hctx,
- .exit_hctx = null_exit_hctx,
};
static void null_del_dev(struct nullb *nullb)
@@ -1731,7 +1721,6 @@ static int setup_queues(struct nullb *nullb)
if (!nullb->queues)
return -ENOMEM;
- nullb->queue_depth = nullb->dev->hw_queue_depth;
return 0;
}
diff --git a/drivers/block/null_blk/null_blk.h b/drivers/block/null_blk/null_blk.h
index 25320fe34bfe..477b97746823 100644
--- a/drivers/block/null_blk/null_blk.h
+++ b/drivers/block/null_blk/null_blk.h
@@ -114,14 +114,12 @@ struct nullb {
struct gendisk *disk;
struct blk_mq_tag_set *tag_set;
struct blk_mq_tag_set __tag_set;
- unsigned int queue_depth;
atomic_long_t cur_bytes;
struct hrtimer bw_timer;
unsigned long cache_flush_pos;
spinlock_t lock;
struct nullb_queue *queues;
- unsigned int nr_queues;
char disk_name[DISK_NAME_LEN];
};