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Message-Id: <20180520222558.7053-4-kent.overstreet@gmail.com>
Date: Sun, 20 May 2018 18:25:49 -0400
From: Kent Overstreet <kent.overstreet@...il.com>
To: linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
axboe@...nel.dk, hch@...radead.org, colyli@...e.de,
snitzer@...hat.com, darrick.wong@...cle.com, clm@...com,
bacik@...com, linux-xfs@...r.kernel.org, drbd-dev@...ts.linbit.com,
linux-btrfs@...r.kernel.org, linux-raid@...r.kernel.org,
neilb@...e.com
Cc: Kent Overstreet <kent.overstreet@...il.com>
Subject: [PATCH 03/12] pktcdvd: convert to bioset_init()/mempool_init()
Signed-off-by: Kent Overstreet <kent.overstreet@...il.com>
---
drivers/block/pktcdvd.c | 50 ++++++++++++++++++++---------------------
include/linux/pktcdvd.h | 2 +-
2 files changed, 26 insertions(+), 26 deletions(-)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index d8aff7f325..69875f5580 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -97,8 +97,8 @@ static int pktdev_major;
static int write_congestion_on = PKT_WRITE_CONGESTION_ON;
static int write_congestion_off = PKT_WRITE_CONGESTION_OFF;
static struct mutex ctl_mutex; /* Serialize open/close/setup/teardown */
-static mempool_t *psd_pool;
-static struct bio_set *pkt_bio_set;
+static mempool_t psd_pool;
+static struct bio_set pkt_bio_set;
static struct class *class_pktcdvd = NULL; /* /sys/class/pktcdvd */
static struct dentry *pkt_debugfs_root = NULL; /* /sys/kernel/debug/pktcdvd */
@@ -631,7 +631,7 @@ static inline struct pkt_rb_node *pkt_rbtree_next(struct pkt_rb_node *node)
static void pkt_rbtree_erase(struct pktcdvd_device *pd, struct pkt_rb_node *node)
{
rb_erase(&node->rb_node, &pd->bio_queue);
- mempool_free(node, pd->rb_pool);
+ mempool_free(node, &pd->rb_pool);
pd->bio_queue_size--;
BUG_ON(pd->bio_queue_size < 0);
}
@@ -2303,14 +2303,14 @@ static void pkt_end_io_read_cloned(struct bio *bio)
psd->bio->bi_status = bio->bi_status;
bio_put(bio);
bio_endio(psd->bio);
- mempool_free(psd, psd_pool);
+ mempool_free(psd, &psd_pool);
pkt_bio_finished(pd);
}
static void pkt_make_request_read(struct pktcdvd_device *pd, struct bio *bio)
{
- struct bio *cloned_bio = bio_clone_fast(bio, GFP_NOIO, pkt_bio_set);
- struct packet_stacked_data *psd = mempool_alloc(psd_pool, GFP_NOIO);
+ struct bio *cloned_bio = bio_clone_fast(bio, GFP_NOIO, &pkt_bio_set);
+ struct packet_stacked_data *psd = mempool_alloc(&psd_pool, GFP_NOIO);
psd->pd = pd;
psd->bio = bio;
@@ -2381,7 +2381,7 @@ static void pkt_make_request_write(struct request_queue *q, struct bio *bio)
/*
* No matching packet found. Store the bio in the work queue.
*/
- node = mempool_alloc(pd->rb_pool, GFP_NOIO);
+ node = mempool_alloc(&pd->rb_pool, GFP_NOIO);
node->bio = bio;
spin_lock(&pd->lock);
BUG_ON(pd->bio_queue_size < 0);
@@ -2451,7 +2451,7 @@ static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
split = bio_split(bio, last_zone -
bio->bi_iter.bi_sector,
- GFP_NOIO, pkt_bio_set);
+ GFP_NOIO, &pkt_bio_set);
bio_chain(split, bio);
} else {
split = bio;
@@ -2707,9 +2707,9 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
if (!pd)
goto out_mutex;
- pd->rb_pool = mempool_create_kmalloc_pool(PKT_RB_POOL_SIZE,
- sizeof(struct pkt_rb_node));
- if (!pd->rb_pool)
+ ret = mempool_init_kmalloc_pool(&pd->rb_pool, PKT_RB_POOL_SIZE,
+ sizeof(struct pkt_rb_node));
+ if (ret)
goto out_mem;
INIT_LIST_HEAD(&pd->cdrw.pkt_free_list);
@@ -2766,7 +2766,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
out_mem2:
put_disk(disk);
out_mem:
- mempool_destroy(pd->rb_pool);
+ mempool_exit(&pd->rb_pool);
kfree(pd);
out_mutex:
mutex_unlock(&ctl_mutex);
@@ -2817,7 +2817,7 @@ static int pkt_remove_dev(dev_t pkt_dev)
blk_cleanup_queue(pd->disk->queue);
put_disk(pd->disk);
- mempool_destroy(pd->rb_pool);
+ mempool_exit(&pd->rb_pool);
kfree(pd);
/* This is safe: open() is still holding a reference. */
@@ -2914,14 +2914,14 @@ static int __init pkt_init(void)
mutex_init(&ctl_mutex);
- psd_pool = mempool_create_kmalloc_pool(PSD_POOL_SIZE,
- sizeof(struct packet_stacked_data));
- if (!psd_pool)
- return -ENOMEM;
- pkt_bio_set = bioset_create(BIO_POOL_SIZE, 0, 0);
- if (!pkt_bio_set) {
- mempool_destroy(psd_pool);
- return -ENOMEM;
+ ret = mempool_init_kmalloc_pool(&psd_pool, PSD_POOL_SIZE,
+ sizeof(struct packet_stacked_data));
+ if (ret)
+ return ret;
+ ret = bioset_init(&pkt_bio_set, BIO_POOL_SIZE, 0, 0);
+ if (ret) {
+ mempool_exit(&psd_pool);
+ return ret;
}
ret = register_blkdev(pktdev_major, DRIVER_NAME);
@@ -2954,8 +2954,8 @@ static int __init pkt_init(void)
out:
unregister_blkdev(pktdev_major, DRIVER_NAME);
out2:
- mempool_destroy(psd_pool);
- bioset_free(pkt_bio_set);
+ mempool_exit(&psd_pool);
+ bioset_exit(&pkt_bio_set);
return ret;
}
@@ -2968,8 +2968,8 @@ static void __exit pkt_exit(void)
pkt_sysfs_cleanup();
unregister_blkdev(pktdev_major, DRIVER_NAME);
- mempool_destroy(psd_pool);
- bioset_free(pkt_bio_set);
+ mempool_exit(&psd_pool);
+ bioset_exit(&pkt_bio_set);
}
MODULE_DESCRIPTION("Packet writing layer for CD/DVD drives");
diff --git a/include/linux/pktcdvd.h b/include/linux/pktcdvd.h
index 93d142ad15..174601554b 100644
--- a/include/linux/pktcdvd.h
+++ b/include/linux/pktcdvd.h
@@ -186,7 +186,7 @@ struct pktcdvd_device
sector_t current_sector; /* Keep track of where the elevator is */
atomic_t scan_queue; /* Set to non-zero when pkt_handle_queue */
/* needs to be run. */
- mempool_t *rb_pool; /* mempool for pkt_rb_node allocations */
+ mempool_t rb_pool; /* mempool for pkt_rb_node allocations */
struct packet_iosched iosched;
struct gendisk *disk;
--
2.17.0
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