commit 56dc6a88ec76019e0d0729165cb5b98536270e1d
author Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Fri Jan 06 00:19:09 2006 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> Fri Jan 06 08:33:48 2006 -0800
tree 4f79e6c12bae4be6bc8f78d786367076d38f4798
parent 973bd9937569146de0917f54f05b2942f8257912

[PATCH] s390: cms volume label definitions

Moved definition of CMS volume label to vtoc.h and modify partitions/ibm.c to
use this volume label definition instead of anonymous array.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/partitions/ibm.c

diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
index 6327bcb..78010ad 100644
--- a/fs/partitions/ibm.c
+++ b/fs/partitions/ibm.c
@@ -56,7 +56,10 @@
 	struct hd_geometry *geo;
 	char type[5] = {0,};
 	char name[7] = {0,};
-	struct vtoc_volume_label *vlabel;
+	union label_t {
+		struct vtoc_volume_label vol;
+		struct vtoc_cms_label cms;
+	} *label;
 	unsigned char *data;
 	Sector sect;
 
@@ -64,9 +67,8 @@
 		goto out_noinfo;
 	if ((geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL)) == NULL)
 		goto out_nogeo;
-	if ((vlabel = kmalloc(sizeof(struct vtoc_volume_label),
-			      GFP_KERNEL)) == NULL)
-		goto out_novlab;
+	if ((label = kmalloc(sizeof(union label_t), GFP_KERNEL)) == NULL)
+		goto out_nolab;
 	
 	if (ioctl_by_bdev(bdev, BIODASDINFO, (unsigned long)info) != 0 ||
 	    ioctl_by_bdev(bdev, HDIO_GETGEO, (unsigned long)geo) != 0)
@@ -87,7 +89,7 @@
 		strncpy(name, data + 8, 6);
 	else
 		strncpy(name, data + 4, 6);
-	memcpy (vlabel, data, sizeof(struct vtoc_volume_label));
+	memcpy(label, data, sizeof(union label_t));
 	put_dev_sector(sect);
 
 	EBCASC(type, 4);
@@ -100,14 +102,12 @@
 		/*
 		 * VM style CMS1 labeled disk
 		 */
-		int *label = (int *) vlabel;
-
-		if (label[13] != 0) {
+		if (label->cms.disk_offset != 0) {
 			printk("CMS1/%8s(MDSK):", name);
 			/* disk is reserved minidisk */
-			blocksize = label[3];
-			offset = label[13];
-			size = (label[7] - 1)*(blocksize >> 9);
+			blocksize = label->cms.block_size;
+			offset = label->cms.disk_offset;
+			size = (label->cms.block_count - 1) * (blocksize >> 9);
 		} else {
 			printk("CMS1/%8s:", name);
 			offset = (info->label_block + 1);
@@ -126,7 +126,7 @@
 		printk("VOL1/%8s:", name);
 
 		/* get block number and read then go through format1 labels */
-		blk = cchhb2blk(&vlabel->vtoc, geo) + 1;
+		blk = cchhb2blk(&label->vol.vtoc, geo) + 1;
 		counter = 0;
 		while ((data = read_dev_sector(bdev, blk*(blocksize/512),
 					       &sect)) != NULL) {
@@ -174,7 +174,7 @@
 	}
 
 	printk("\n");
-	kfree(vlabel);
+	kfree(label);
 	kfree(geo);
 	kfree(info);
 	return 1;
@@ -182,8 +182,8 @@
 out_readerr:
 out_badsect:
 out_noioctl:
-	kfree(vlabel);
-out_novlab:
+	kfree(label);
+out_nolab:
 	kfree(geo);
 out_nogeo:
 	kfree(info);