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--- a/block/blk.h
+++ b/block/blk.h
@@ -357,6 +357,7 @@ char *disk_name(struct gendisk *hd, int
#define ADDPART_FLAG_NONE 0
#define ADDPART_FLAG_RAID 1
#define ADDPART_FLAG_WHOLEDISK 2
+#define ADDPART_FLAG_ROOTDEV 4
void delete_partition(struct hd_struct *part);
int bdev_add_partition(struct block_device *bdev, int partno,
sector_t start, sector_t length);
--- a/block/partitions/Kconfig
+++ b/block/partitions/Kconfig
@@ -101,6 +101,13 @@ config ATARI_PARTITION
Say Y here if you would like to use hard disks under Linux which
were partitioned under the Atari OS.
+config FIT_PARTITION
+ bool "Flattened-Image-Tree (FIT) partition support" if PARTITION_ADVANCED
+ default n
+ help
+ Say Y here if your system needs to mount the filesystem part of
+ a Flattened-Image-Tree (FIT) image commonly used with Das U-Boot.
+
config IBM_PARTITION
bool "IBM disk label and partition support"
depends on PARTITION_ADVANCED && S390
--- a/block/partitions/Makefile
+++ b/block/partitions/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_ACORN_PARTITION) += acorn.o
obj-$(CONFIG_AMIGA_PARTITION) += amiga.o
obj-$(CONFIG_ATARI_PARTITION) += atari.o
obj-$(CONFIG_AIX_PARTITION) += aix.o
+obj-$(CONFIG_FIT_PARTITION) += fit.o
obj-$(CONFIG_CMDLINE_PARTITION) += cmdline.o
obj-$(CONFIG_MAC_PARTITION) += mac.o
obj-$(CONFIG_LDM_PARTITION) += ldm.o
--- a/block/partitions/check.h
+++ b/block/partitions/check.h
@@ -58,6 +58,7 @@ int amiga_partition(struct parsed_partit
int atari_partition(struct parsed_partitions *state);
int cmdline_partition(struct parsed_partitions *state);
int efi_partition(struct parsed_partitions *state);
+int fit_partition(struct parsed_partitions *state);
int ibm_partition(struct parsed_partitions *);
int karma_partition(struct parsed_partitions *state);
int ldm_partition(struct parsed_partitions *state);
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -10,6 +10,8 @@
#include <linux/vmalloc.h>
#include <linux/blktrace_api.h>
#include <linux/raid/detect.h>
+#include <linux/root_dev.h>
+
#include "check.h"
static int (*check_part[])(struct parsed_partitions *) = {
@@ -46,6 +48,9 @@ static int (*check_part[])(struct parsed
#ifdef CONFIG_EFI_PARTITION
efi_partition, /* this must come before msdos */
#endif
+#ifdef CONFIG_FIT_PARTITION
+ fit_partition,
+#endif
#ifdef CONFIG_SGI_PARTITION
sgi_partition,
#endif
@@ -694,6 +699,9 @@ static bool blk_add_partition(struct gen
(state->parts[p].flags & ADDPART_FLAG_RAID))
md_autodetect_dev(part_to_dev(part)->devt);
+ if ((state->parts[p].flags & ADDPART_FLAG_ROOTDEV) && ROOT_DEV == 0)
+ ROOT_DEV = part_to_dev(part)->devt;
+
return true;
}
--- a/drivers/mtd/ubi/block.c
+++ b/drivers/mtd/ubi/block.c
@@ -396,7 +396,7 @@ int ubiblock_create(struct ubi_volume_in
dev->leb_size = vi->usable_leb_size;
/* Initialize the gendisk of this ubiblock device */
- gd = alloc_disk(1);
+ gd = alloc_disk(0);
if (!gd) {
pr_err("UBI: block: alloc_disk failed\n");
ret = -ENODEV;
@@ -413,6 +413,7 @@ int ubiblock_create(struct ubi_volume_in
goto out_put_disk;
}
gd->private_data = dev;
+ gd->flags |= GENHD_FL_EXT_DEVT;
sprintf(gd->disk_name, "ubiblock%d_%d", dev->ubi_num, dev->vol_id);
set_capacity(gd, disk_capacity);
dev->gd = gd;
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