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authorAl Viro <viro@zeniv.linux.org.uk>2011-09-16 00:25:05 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-03 22:54:06 -0500
commit9be96f3fd10187f185d84cf878cf032465bcced3 (patch)
tree432a430ed9e0cbe0c18916cd3c3992f09b3feb37 /block/partitions/ultrix.c
parent4752bc309b7604d507c973c7b7678ac2ce10a058 (diff)
downloadop-kernel-dev-9be96f3fd10187f185d84cf878cf032465bcced3.zip
op-kernel-dev-9be96f3fd10187f185d84cf878cf032465bcced3.tar.gz
move fs/partitions to block/
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'block/partitions/ultrix.c')
-rw-r--r--block/partitions/ultrix.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/block/partitions/ultrix.c b/block/partitions/ultrix.c
new file mode 100644
index 0000000..8dbaf9f
--- /dev/null
+++ b/block/partitions/ultrix.c
@@ -0,0 +1,48 @@
+/*
+ * fs/partitions/ultrix.c
+ *
+ * Code extracted from drivers/block/genhd.c
+ *
+ * Re-organised Jul 1999 Russell King
+ */
+
+#include "check.h"
+#include "ultrix.h"
+
+int ultrix_partition(struct parsed_partitions *state)
+{
+ int i;
+ Sector sect;
+ unsigned char *data;
+ struct ultrix_disklabel {
+ s32 pt_magic; /* magic no. indicating part. info exits */
+ s32 pt_valid; /* set by driver if pt is current */
+ struct pt_info {
+ s32 pi_nblocks; /* no. of sectors */
+ u32 pi_blkoff; /* block offset for start */
+ } pt_part[8];
+ } *label;
+
+#define PT_MAGIC 0x032957 /* Partition magic number */
+#define PT_VALID 1 /* Indicates if struct is valid */
+
+ data = read_part_sector(state, (16384 - sizeof(*label))/512, &sect);
+ if (!data)
+ return -1;
+
+ label = (struct ultrix_disklabel *)(data + 512 - sizeof(*label));
+
+ if (label->pt_magic == PT_MAGIC && label->pt_valid == PT_VALID) {
+ for (i=0; i<8; i++)
+ if (label->pt_part[i].pi_nblocks)
+ put_partition(state, i+1,
+ label->pt_part[i].pi_blkoff,
+ label->pt_part[i].pi_nblocks);
+ put_dev_sector(sect);
+ strlcat(state->pp_buf, "\n", PAGE_SIZE);
+ return 1;
+ } else {
+ put_dev_sector(sect);
+ return 0;
+ }
+}
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