From 0c966214589b9767fd8771b71328f83bac58cb25 Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Thu, 4 Oct 2012 17:16:40 -0700 Subject: aoe: support more AoE addresses with dynamic block device minor numbers The ATA over Ethernet protocol uses a major (shelf) and minor (slot) address to identify a particular storage target. These changes remove an artificial limitation the aoe driver imposes on the use of AoE addresses. For example, without these changes, the slot address has a maximum of 15, but users commonly use slot numbers much greater than that. The AoE shelf and slot address space is often used sparsely. Instead of using a static mapping between AoE addresses and the block device minor number, the block device minor numbers are now allocated on demand. Signed-off-by: Ed Cashin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/aoe/aoeblk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block/aoe/aoeblk.c') diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 83160ab..00dfc50 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -249,7 +249,7 @@ aoeblk_gdalloc(void *vp) q->queuedata = d; d->gd = gd; gd->major = AOE_MAJOR; - gd->first_minor = d->sysminor * AOE_PARTITIONS; + gd->first_minor = d->sysminor; gd->fops = &aoe_bdops; gd->private_data = d; set_capacity(gd, d->ssize); -- cgit v1.1