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authorEd Cashin <ecashin@coraid.com>2012-10-04 17:16:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-06 03:05:28 +0900
commit0c966214589b9767fd8771b71328f83bac58cb25 (patch)
treefa46832f149cb30b1847bc6eee13e79ef9c0c444 /drivers/block/aoe/aoeblk.c
parenteecdf226721673095ef7849f960350897392e8bf (diff)
downloadlinux-0c966214589b9767fd8771b71328f83bac58cb25.tar.bz2
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 <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/aoe/aoeblk.c')
-rw-r--r--drivers/block/aoe/aoeblk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 83160ab0d273..00dfc5008ad4 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);