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block/bsg: move queue creation into bsg_setup_queue

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Simply the boilerplate code needed for bsg nodes a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2017-01-03 15:25:02 +03:00
committed by Jens Axboe
parent e9c787e65c
commit 8ae94eb65b
4 changed files with 25 additions and 52 deletions
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15
drivers/scsi/scsi_transport_iscsi.c
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@@ -1537,25 +1537,18 @@ iscsi_bsg_host_add(struct Scsi_Host *shost, struct iscsi_cls_host *ihost)
struct iscsi_internal *i = to_iscsi_internal(shost->transportt);
struct request_queue *q;
char bsg_name[20];
int ret;
if (!i->iscsi_transport->bsg_request)
return -ENOTSUPP;
snprintf(bsg_name, sizeof(bsg_name), "iscsi_host%d", shost->host_no);
q = blk_init_queue(bsg_request_fn, NULL);
if (!q)
return -ENOMEM;
__scsi_init_queue(shost, q);
ret = bsg_setup_queue(dev, q, bsg_name, iscsi_bsg_host_dispatch, 0);
if (ret) {
q = bsg_setup_queue(dev, bsg_name, iscsi_bsg_host_dispatch, 0);
if (IS_ERR(q)) {
shost_printk(KERN_ERR, shost, "bsg interface failed to "
"initialize - no request queue\n");
blk_cleanup_queue(q);
return ret;
return PTR_ERR(q);
}
__scsi_init_queue(shost, q);
ihost->bsg_q = q;
return 0;