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nvme: use blk_mq_alloc_disk

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Switch to use the blk_mq_alloc_disk helper for allocating the
request_queue and gendisk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Link: https://lore.kernel.org/r/20210816131910.615153-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-08-16 15:19:02 +02:00 committed by Jens Axboe
parent 759e0fd4b6
commit 5f432cceb3
1 changed files with 13 additions and 20 deletions
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33
drivers/nvme/host/core.c
View File

@ -3728,9 +3728,14 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
if (!ns)
goto out_free_id;
ns->queue = blk_mq_init_queue(ctrl->tagset);
if (IS_ERR(ns->queue))
disk = blk_mq_alloc_disk(ctrl->tagset, ns);
if (IS_ERR(disk))
goto out_free_ns;
disk->fops = &nvme_bdev_ops;
disk->private_data = ns;
ns->disk = disk;
ns->queue = disk->queue;
if (ctrl->opts && ctrl->opts->data_digest)
blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, ns->queue);
@ -3739,20 +3744,12 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
if (ctrl->ops->flags & NVME_F_PCI_P2PDMA)
blk_queue_flag_set(QUEUE_FLAG_PCI_P2PDMA, ns->queue);
ns->queue->queuedata = ns;
ns->ctrl = ctrl;
kref_init(&ns->kref);
if (nvme_init_ns_head(ns, nsid, ids, id->nmic & NVME_NS_NMIC_SHARED))
goto out_free_queue;
goto out_cleanup_disk;
disk = alloc_disk_node(0, node);
if (!disk)
goto out_unlink_ns;
disk->fops = &nvme_bdev_ops;
disk->private_data = ns;
disk->queue = ns->queue;
/*
* Without the multipath code enabled, multiple controller per
* subsystems are visible as devices and thus we cannot use the
@ -3761,15 +3758,14 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
if (!nvme_mpath_set_disk_name(ns, disk->disk_name, &disk->flags))
sprintf(disk->disk_name, "nvme%dn%d", ctrl->instance,
ns->head->instance);
ns->disk = disk;
if (nvme_update_ns_info(ns, id))
goto out_put_disk;
goto out_unlink_ns;
if ((ctrl->quirks & NVME_QUIRK_LIGHTNVM) && id->vs[0] == 0x1) {
if (nvme_nvm_register(ns, disk->disk_name, node)) {
dev_warn(ctrl->device, "LightNVM init failure\n");
goto out_put_disk;
goto out_unlink_ns;
}
}
@ -3788,10 +3784,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
kfree(id);
return;
out_put_disk:
/* prevent double queue cleanup */
ns->disk->queue = NULL;
put_disk(ns->disk);
out_unlink_ns:
mutex_lock(&ctrl->subsys->lock);
list_del_rcu(&ns->siblings);
@ -3799,8 +3792,8 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
list_del_init(&ns->head->entry);
mutex_unlock(&ctrl->subsys->lock);
nvme_put_ns_head(ns->head);
out_free_queue:
blk_cleanup_queue(ns->queue);
out_cleanup_disk:
blk_cleanup_disk(disk);
out_free_ns:
kfree(ns);
out_free_id: