mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-30 05:24:26 -04:00
117 lines
3.5 KiB
Diff
117 lines
3.5 KiB
Diff
--- a/drivers/mtd/devices/block2mtd.c
|
|
+++ b/drivers/mtd/devices/block2mtd.c
|
|
@@ -14,6 +14,7 @@
|
|
#include <linux/list.h>
|
|
#include <linux/init.h>
|
|
#include <linux/mtd/mtd.h>
|
|
+#include <linux/mtd/partitions.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/mount.h>
|
|
#include <linux/slab.h>
|
|
@@ -208,11 +209,12 @@ static void block2mtd_free_device(struct
|
|
|
|
|
|
/* FIXME: ensure that mtd->size % erase_size == 0 */
|
|
-static struct block2mtd_dev *add_device(char *devname, int erase_size)
|
|
+static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
|
|
{
|
|
const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
|
|
struct block_device *bdev;
|
|
struct block2mtd_dev *dev;
|
|
+ struct mtd_partition *part;
|
|
char *name;
|
|
|
|
if (!devname)
|
|
@@ -251,13 +253,16 @@ static struct block2mtd_dev *add_device(
|
|
|
|
/* Setup the MTD structure */
|
|
/* make the name contain the block device in */
|
|
- name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname);
|
|
+ if (!mtdname)
|
|
+ mtdname = devname;
|
|
+ name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL);
|
|
if (!name)
|
|
goto devinit_err;
|
|
|
|
+ strcpy(name, mtdname);
|
|
dev->mtd.name = name;
|
|
|
|
- dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
|
|
+ dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1);
|
|
dev->mtd.erasesize = erase_size;
|
|
dev->mtd.writesize = 1;
|
|
dev->mtd.writebufsize = PAGE_SIZE;
|
|
@@ -270,14 +275,17 @@ static struct block2mtd_dev *add_device(
|
|
dev->mtd.priv = dev;
|
|
dev->mtd.owner = THIS_MODULE;
|
|
|
|
- if (mtd_device_register(&dev->mtd, NULL, 0)) {
|
|
+ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
|
|
+ part->name = name;
|
|
+ part->offset = 0;
|
|
+ part->size = dev->mtd.size;
|
|
+ if (mtd_device_register(&dev->mtd, part, 1)) {
|
|
/* Device didn't get added, so free the entry */
|
|
goto devinit_err;
|
|
}
|
|
list_add(&dev->list, &blkmtd_device_list);
|
|
INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
|
|
- dev->mtd.name + strlen("block2mtd: "),
|
|
- dev->mtd.erasesize >> 10, dev->mtd.erasesize);
|
|
+ mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize);
|
|
return dev;
|
|
|
|
devinit_err:
|
|
@@ -350,9 +358,9 @@ static char block2mtd_paramline[80 + 12]
|
|
|
|
static int block2mtd_setup2(const char *val)
|
|
{
|
|
- char buf[80 + 12]; /* 80 for device, 12 for erase size */
|
|
+ char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */
|
|
char *str = buf;
|
|
- char *token[2];
|
|
+ char *token[3];
|
|
char *name;
|
|
size_t erase_size = PAGE_SIZE;
|
|
int i, ret;
|
|
@@ -363,7 +371,7 @@ static int block2mtd_setup2(const char *
|
|
strcpy(str, val);
|
|
kill_final_newline(str);
|
|
|
|
- for (i = 0; i < 2; i++)
|
|
+ for (i = 0; i < 3; i++)
|
|
token[i] = strsep(&str, ",");
|
|
|
|
if (str)
|
|
@@ -382,8 +390,10 @@ static int block2mtd_setup2(const char *
|
|
parse_err("illegal erase size");
|
|
}
|
|
}
|
|
+ if (token[2] && (strlen(token[2]) + 1 > 80))
|
|
+ parse_err("mtd device name too long");
|
|
|
|
- add_device(name, erase_size);
|
|
+ add_device(name, erase_size, token[2]);
|
|
|
|
return 0;
|
|
}
|
|
@@ -417,7 +427,7 @@ static int block2mtd_setup(const char *v
|
|
|
|
|
|
module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
|
|
-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
|
|
+MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>[,<name>]]\"");
|
|
|
|
static int __init block2mtd_init(void)
|
|
{
|
|
--- a/block/partition-generic.c
|
|
+++ b/block/partition-generic.c
|
|
@@ -548,6 +548,7 @@ int invalidate_partitions(struct gendisk
|
|
|
|
return 0;
|
|
}
|
|
+EXPORT_SYMBOL(rescan_partitions);
|
|
|
|
unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
|
|
{
|