From 6560ec961a080944f8d5e1fef17b771bfaf189cb Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 2 Jun 2021 09:53:31 +0300 Subject: aoe: use blk_mq_alloc_disk and blk_cleanup_disk Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20210602065345.355274-17-hch@lst.de Signed-off-by: Jens Axboe --- drivers/block/aoe/aoeblk.c | 33 ++++++++++++--------------------- 1 file changed, 12 insertions(+), 21 deletions(-) (limited to 'drivers/block/aoe/aoeblk.c') diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index c34e71b0c4a9..06b360f7123a 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -338,14 +338,13 @@ static const struct blk_mq_ops aoeblk_mq_ops = { .queue_rq = aoeblk_queue_rq, }; -/* alloc_disk and add_disk can sleep */ +/* blk_mq_alloc_disk and add_disk can sleep */ void aoeblk_gdalloc(void *vp) { struct aoedev *d = vp; struct gendisk *gd; mempool_t *mp; - struct request_queue *q; struct blk_mq_tag_set *set; ulong flags; int late = 0; @@ -362,19 +361,12 @@ aoeblk_gdalloc(void *vp) if (late) return; - gd = alloc_disk(AOE_PARTITIONS); - if (gd == NULL) { - pr_err("aoe: cannot allocate disk structure for %ld.%d\n", - d->aoemajor, d->aoeminor); - goto err; - } - mp = mempool_create(MIN_BUFS, mempool_alloc_slab, mempool_free_slab, buf_pool_cache); if (mp == NULL) { printk(KERN_ERR "aoe: cannot allocate bufpool for %ld.%d\n", d->aoemajor, d->aoeminor); - goto err_disk; + goto err; } set = &d->tag_set; @@ -391,12 +383,11 @@ aoeblk_gdalloc(void *vp) goto err_mempool; } - q = blk_mq_init_queue(set); - if (IS_ERR(q)) { + gd = blk_mq_alloc_disk(set, d); + if (IS_ERR(gd)) { pr_err("aoe: cannot allocate block queue for %ld.%d\n", d->aoemajor, d->aoeminor); - blk_mq_free_tag_set(set); - goto err_mempool; + goto err_tagset; } spin_lock_irqsave(&d->lock, flags); @@ -405,16 +396,16 @@ aoeblk_gdalloc(void *vp) WARN_ON(d->flags & DEVFL_TKILL); WARN_ON(d->gd); WARN_ON(d->flags & DEVFL_UP); - blk_queue_max_hw_sectors(q, BLK_DEF_MAX_SECTORS); - blk_queue_io_opt(q, SZ_2M); + blk_queue_max_hw_sectors(gd->queue, BLK_DEF_MAX_SECTORS); + blk_queue_io_opt(gd->queue, SZ_2M); d->bufpool = mp; - d->blkq = gd->queue = q; - q->queuedata = d; + d->blkq = gd->queue; d->gd = gd; if (aoe_maxsectors) - blk_queue_max_hw_sectors(q, aoe_maxsectors); + blk_queue_max_hw_sectors(gd->queue, aoe_maxsectors); gd->major = AOE_MAJOR; gd->first_minor = d->sysminor; + gd->minors = AOE_PARTITIONS; gd->fops = &aoe_bdops; gd->private_data = d; set_capacity(gd, d->ssize); @@ -435,10 +426,10 @@ aoeblk_gdalloc(void *vp) spin_unlock_irqrestore(&d->lock, flags); return; +err_tagset: + blk_mq_free_tag_set(set); err_mempool: mempool_destroy(mp); -err_disk: - put_disk(gd); err: spin_lock_irqsave(&d->lock, flags); d->flags &= ~DEVFL_GD_NOW; -- cgit v1.2.3