--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
-@@ -47,6 +47,16 @@
+@@ -47,6 +47,16 @@ config MTD_PARTITIONS
devices. Partitioning on NFTL 'devices' is a different - that's the
'normal' form of partitioning used on a block device.
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
-@@ -39,7 +41,7 @@
+@@ -39,7 +41,7 @@ struct mtd_part {
* the pointer to that structure with this macro.
*/
#define PART(x) ((struct mtd_part *)(x))
/*
* MTD methods which simply translate the effective address and pass through
-@@ -322,6 +324,316 @@
+@@ -322,6 +324,316 @@ int del_mtd_partitions(struct mtd_info *
return 0;
}
/*
* This function, given a master MTD object and a partition table, creates
* and registers slave MTD objects which are bound to the master according to
-@@ -334,171 +646,31 @@
+@@ -334,171 +646,31 @@ int add_mtd_partitions(struct mtd_info *
int nbparts)
{
struct mtd_part *slave;
}
}
-@@ -574,6 +746,32 @@
+@@ -574,6 +746,32 @@ int parse_mtd_partitions(struct mtd_info
return ret;
}
EXPORT_SYMBOL_GPL(deregister_mtd_parser);
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
-@@ -34,6 +34,8 @@
+@@ -34,6 +34,8 @@ struct block2mtd_dev {
struct block_device *blkdev;
struct mtd_info mtd;
struct mutex write_mutex;
};
-@@ -86,6 +88,12 @@
+@@ -86,6 +88,12 @@ static int block2mtd_erase(struct mtd_in
size_t len = instr->len;
int err;
instr->state = MTD_ERASING;
mutex_lock(&dev->write_mutex);
err = _block2mtd_erase(dev, from, len);
-@@ -98,6 +106,10 @@
+@@ -98,6 +106,10 @@ static int block2mtd_erase(struct mtd_in
instr->state = MTD_ERASE_DONE;
mtd_erase_callback(instr);
return err;
}
-@@ -109,10 +121,14 @@
+@@ -109,10 +121,14 @@ static int block2mtd_read(struct mtd_inf
struct page *page;
int index = from >> PAGE_SHIFT;
int offset = from & (PAGE_SIZE-1);
if (from + len > mtd->size)
len = mtd->size - from;
-@@ -127,10 +143,14 @@
+@@ -127,10 +143,14 @@ static int block2mtd_read(struct mtd_inf
len = len - cpylen;
page = page_read(dev->blkdev->bd_inode->i_mapping, index);
memcpy(buf, page_address(page) + offset, cpylen);
page_cache_release(page);
-@@ -141,7 +161,10 @@
+@@ -141,7 +161,10 @@ static int block2mtd_read(struct mtd_inf
offset = 0;
index++;
}
}
-@@ -193,12 +216,22 @@
+@@ -193,12 +216,22 @@ static int block2mtd_write(struct mtd_in
size_t *retlen, const u_char *buf)
{
struct block2mtd_dev *dev = mtd->priv;
if (to + len > mtd->size)
len = mtd->size - to;
-@@ -207,6 +240,9 @@
+@@ -207,6 +240,9 @@ static int block2mtd_write(struct mtd_in
mutex_unlock(&dev->write_mutex);
if (err > 0)
err = 0;
return err;
}
-@@ -215,51 +251,29 @@
+@@ -215,51 +251,29 @@ static int block2mtd_write(struct mtd_in
static void block2mtd_sync(struct mtd_info *mtd)
{
struct block2mtd_dev *dev = mtd->priv;
if (devt) {
bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
}
-@@ -267,17 +281,96 @@
+@@ -267,17 +281,96 @@ static struct block2mtd_dev *add_device(
#endif
if (IS_ERR(bdev)) {
/* Setup the MTD structure */
/* make the name contain the block device in */
-@@ -304,6 +397,7 @@
+@@ -304,6 +397,7 @@ static struct block2mtd_dev *add_device(
dev->mtd.read = block2mtd_read;
dev->mtd.priv = dev;
dev->mtd.owner = THIS_MODULE;
#include <asm/uaccess.h>
-@@ -756,6 +757,13 @@
+@@ -756,6 +757,13 @@ static int mtd_ioctl(struct inode *inode
file->f_pos = 0;
break;
}
ret = -ENOTTY;
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
-@@ -98,6 +98,7 @@
+@@ -98,6 +98,7 @@ struct mtd_oob_ops {
uint8_t *oobbuf;
};
struct mtd_info {
u_char type;
u_int32_t flags;
-@@ -211,6 +212,9 @@
+@@ -211,6 +212,9 @@ struct mtd_info {
struct module *owner;
int usecount;
struct mtd_partition {
char *name; /* identifier string */
u_int32_t size; /* partition size */
-@@ -43,6 +44,7 @@
+@@ -43,6 +44,7 @@ struct mtd_partition {
u_int32_t mask_flags; /* master MTD flags to mask out for this partition */
struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only)*/
struct mtd_info **mtdp; /* pointer to store the MTD object */
};
#define MTDPART_OFS_NXTBLK (-2)
-@@ -52,6 +54,7 @@
+@@ -52,6 +54,7 @@ struct mtd_partition {
int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
int del_mtd_partitions(struct mtd_info *);
* Functions dealing with the various ways of partitioning the space
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
-@@ -95,6 +95,7 @@
+@@ -95,6 +95,7 @@ struct otp_info {
#define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout)
#define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats)
#define MTDFILEMODE _IO('M', 19)