linux-kernel - [PATCH 01/11] uml ubd driver: allow using up to 16 UBD devices

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Message-Id: <20061029192023.12292.32443.stgit@americanbeauty.home.lan>
Date:	Sun, 29 Oct 2006 20:20:23 +0100
From:	Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
To:	Andrew Morton <akpm@...l.org>
Cc:	Jeff Dike <jdike@...toit.com>,
	user-mode-linux-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [PATCH 01/11] uml ubd driver: allow using up to 16 UBD devices

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>

With 256 minors and 16 minors used per each UBD device, we can allow the use of
up to 16 UBD devices per UML.
Also chnage parse_unit and leave to the caller (which already do it) the check
for excess numbers, since this is just supposed to do raw parsing.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
---

 arch/um/drivers/ubd_kern.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 784c74c..984b5da 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -117,7 +117,7 @@ static int ubd_ioctl(struct inode * inod
 		     unsigned int cmd, unsigned long arg);
 static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
-#define MAX_DEV (8)
+#define MAX_DEV (16)
 
 static struct block_device_operations ubd_blops = {
         .owner		= THIS_MODULE,
@@ -277,7 +277,7 @@ static int parse_unit(char **ptr)
 			return(-1);
 		*ptr = end;
 	}
-	else if (('a' <= *str) && (*str <= 'h')) {
+	else if (('a' <= *str) && (*str <= 'z')) {
 		n = *str - 'a';
 		str++;
 		*ptr = str;
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