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-rw-r--r--fs/partitions/Kconfig9
-rw-r--r--fs/partitions/Makefile1
-rw-r--r--fs/partitions/acorn.c2
-rw-r--r--fs/partitions/check.c13
-rw-r--r--fs/partitions/efi.c12
-rw-r--r--fs/partitions/sysv68.c92
-rw-r--r--fs/partitions/sysv68.h1
7 files changed, 116 insertions, 14 deletions
diff --git a/fs/partitions/Kconfig b/fs/partitions/Kconfig
index 6e8bb66fe619..7638a1c42a7d 100644
--- a/fs/partitions/Kconfig
+++ b/fs/partitions/Kconfig
@@ -236,3 +236,12 @@ config EFI_PARTITION
help
Say Y here if you would like to use hard disks under Linux which
were partitioned using EFI GPT.
+
+config SYSV68_PARTITION
+ bool "SYSV68 partition table support" if PARTITION_ADVANCED
+ default y if VME
+ help
+ Say Y here if you would like to be able to read the hard disk
+ partition table format used by Motorola Delta machines (using
+ sysv68).
+ Otherwise, say N.
diff --git a/fs/partitions/Makefile b/fs/partitions/Makefile
index 67e665fdb7fc..03af8eac51da 100644
--- a/fs/partitions/Makefile
+++ b/fs/partitions/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_ULTRIX_PARTITION) += ultrix.o
obj-$(CONFIG_IBM_PARTITION) += ibm.o
obj-$(CONFIG_EFI_PARTITION) += efi.o
obj-$(CONFIG_KARMA_PARTITION) += karma.o
+obj-$(CONFIG_SYSV68_PARTITION) += sysv68.o
diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c
index 1bc9f372c7d4..e3491328596b 100644
--- a/fs/partitions/acorn.c
+++ b/fs/partitions/acorn.c
@@ -271,7 +271,7 @@ adfspart_check_ADFS(struct parsed_partitions *state, struct block_device *bdev)
extern void xd_set_geometry(struct block_device *,
unsigned char, unsigned char, unsigned int);
xd_set_geometry(bdev, dr->secspertrack, heads, 1);
- invalidate_bdev(bdev, 1);
+ invalidate_bh_lrus();
truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
}
#endif
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 8a7d0035ad7a..9a3a058f3553 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -34,6 +34,7 @@
#include "ultrix.h"
#include "efi.h"
#include "karma.h"
+#include "sysv68.h"
#ifdef CONFIG_BLK_DEV_MD
extern void md_autodetect_dev(dev_t dev);
@@ -105,6 +106,9 @@ static int (*check_part[])(struct parsed_partitions *, struct block_device *) =
#ifdef CONFIG_KARMA_PARTITION
karma_partition,
#endif
+#ifdef CONFIG_SYSV68_PARTITION
+ sysv68_partition,
+#endif
NULL
};
@@ -312,7 +316,7 @@ static struct attribute * default_attrs[] = {
NULL,
};
-extern struct subsystem block_subsys;
+extern struct kset block_subsys;
static void part_release(struct kobject *kobj)
{
@@ -388,7 +392,7 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
kobject_add(&p->kobj);
if (!disk->part_uevent_suppress)
kobject_uevent(&p->kobj, KOBJ_ADD);
- sysfs_create_link(&p->kobj, &block_subsys.kset.kobj, "subsystem");
+ sysfs_create_link(&p->kobj, &block_subsys.kobj, "subsystem");
if (flags & ADDPART_FLAG_WHOLEDISK) {
static struct attribute addpartattr = {
.name = "whole_disk",
@@ -444,7 +448,7 @@ static int disk_sysfs_symlinks(struct gendisk *disk)
goto err_out_dev_link;
}
- err = sysfs_create_link(&disk->kobj, &block_subsys.kset.kobj,
+ err = sysfs_create_link(&disk->kobj, &block_subsys.kobj,
"subsystem");
if (err)
goto err_out_disk_name_lnk;
@@ -569,9 +573,6 @@ unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
page = read_mapping_page(mapping, (pgoff_t)(n >> (PAGE_CACHE_SHIFT-9)),
NULL);
if (!IS_ERR(page)) {
- wait_on_page_locked(page);
- if (!PageUptodate(page))
- goto fail;
if (PageError(page))
goto fail;
p->v = page;
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
index 1bea610078b3..e7b07006bc41 100644
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -152,7 +152,7 @@ last_lba(struct block_device *bdev)
}
static inline int
-pmbr_part_valid(struct partition *part, u64 lastlba)
+pmbr_part_valid(struct partition *part)
{
if (part->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT &&
le32_to_cpu(part->start_sect) == 1UL)
@@ -163,7 +163,6 @@ pmbr_part_valid(struct partition *part, u64 lastlba)
/**
* is_pmbr_valid(): test Protective MBR for validity
* @mbr: pointer to a legacy mbr structure
- * @lastlba: last_lba for the whole device
*
* Description: Returns 1 if PMBR is valid, 0 otherwise.
* Validity depends on two things:
@@ -171,13 +170,13 @@ pmbr_part_valid(struct partition *part, u64 lastlba)
* 2) One partition of type 0xEE is found
*/
static int
-is_pmbr_valid(legacy_mbr *mbr, u64 lastlba)
+is_pmbr_valid(legacy_mbr *mbr)
{
int i;
if (!mbr || le16_to_cpu(mbr->signature) != MSDOS_MBR_SIGNATURE)
return 0;
for (i = 0; i < 4; i++)
- if (pmbr_part_valid(&mbr->partition_record[i], lastlba))
+ if (pmbr_part_valid(&mbr->partition_record[i]))
return 1;
return 0;
}
@@ -516,7 +515,7 @@ find_valid_gpt(struct block_device *bdev, gpt_header **gpt, gpt_entry **ptes)
int good_pgpt = 0, good_agpt = 0, good_pmbr = 0;
gpt_header *pgpt = NULL, *agpt = NULL;
gpt_entry *pptes = NULL, *aptes = NULL;
- legacy_mbr *legacymbr = NULL;
+ legacy_mbr *legacymbr;
u64 lastlba;
if (!bdev || !gpt || !ptes)
return 0;
@@ -528,9 +527,8 @@ find_valid_gpt(struct block_device *bdev, gpt_header **gpt, gpt_entry **ptes)
if (legacymbr) {
read_lba(bdev, 0, (u8 *) legacymbr,
sizeof (*legacymbr));
- good_pmbr = is_pmbr_valid(legacymbr, lastlba);
+ good_pmbr = is_pmbr_valid(legacymbr);
kfree(legacymbr);
- legacymbr=NULL;
}
if (!good_pmbr)
goto fail;
diff --git a/fs/partitions/sysv68.c b/fs/partitions/sysv68.c
new file mode 100644
index 000000000000..4eba27b78643
--- /dev/null
+++ b/fs/partitions/sysv68.c
@@ -0,0 +1,92 @@
+/*
+ * fs/partitions/sysv68.c
+ *
+ * Copyright (C) 2007 Philippe De Muyter <phdm@macqel.be>
+ */
+
+#include "check.h"
+#include "sysv68.h"
+
+/*
+ * Volume ID structure: on first 256-bytes sector of disk
+ */
+
+struct volumeid {
+ u8 vid_unused[248];
+ u8 vid_mac[8]; /* ASCII string "MOTOROLA" */
+};
+
+/*
+ * config block: second 256-bytes sector on disk
+ */
+
+struct dkconfig {
+ u8 ios_unused0[128];
+ __be32 ios_slcblk; /* Slice table block number */
+ __be16 ios_slccnt; /* Number of entries in slice table */
+ u8 ios_unused1[122];
+};
+
+/*
+ * combined volumeid and dkconfig block
+ */
+
+struct dkblk0 {
+ struct volumeid dk_vid;
+ struct dkconfig dk_ios;
+};
+
+/*
+ * Slice Table Structure
+ */
+
+struct slice {
+ __be32 nblocks; /* slice size (in blocks) */
+ __be32 blkoff; /* block offset of slice */
+};
+
+
+int sysv68_partition(struct parsed_partitions *state, struct block_device *bdev)
+{
+ int i, slices;
+ int slot = 1;
+ Sector sect;
+ unsigned char *data;
+ struct dkblk0 *b;
+ struct slice *slice;
+
+ data = read_dev_sector(bdev, 0, &sect);
+ if (!data)
+ return -1;
+
+ b = (struct dkblk0 *)data;
+ if (memcmp(b->dk_vid.vid_mac, "MOTOROLA", sizeof(b->dk_vid.vid_mac))) {
+ put_dev_sector(sect);
+ return 0;
+ }
+ slices = be16_to_cpu(b->dk_ios.ios_slccnt);
+ i = be32_to_cpu(b->dk_ios.ios_slcblk);
+ put_dev_sector(sect);
+
+ data = read_dev_sector(bdev, i, &sect);
+ if (!data)
+ return -1;
+
+ slices -= 1; /* last slice is the whole disk */
+ printk("sysV68: %s(s%u)", state->name, slices);
+ slice = (struct slice *)data;
+ for (i = 0; i < slices; i++, slice++) {
+ if (slot == state->limit)
+ break;
+ if (be32_to_cpu(slice->nblocks)) {
+ put_partition(state, slot,
+ be32_to_cpu(slice->blkoff),
+ be32_to_cpu(slice->nblocks));
+ printk("(s%u)", i);
+ }
+ slot++;
+ }
+ printk("\n");
+ put_dev_sector(sect);
+ return 1;
+}
diff --git a/fs/partitions/sysv68.h b/fs/partitions/sysv68.h
new file mode 100644
index 000000000000..fa733f68431b
--- /dev/null
+++ b/fs/partitions/sysv68.h
@@ -0,0 +1 @@
+extern int sysv68_partition(struct parsed_partitions *state, struct block_device *bdev);
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