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kernel/base-files: clean up old code related to refreshing mtd partitions, it is no longer used anywhere

Browse source 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 37282
This commit is contained in:
Felix Fietkau 2013-07-14 12:56:58 +00:00
parent e800436de3
commit b95bdc8ab5
4 changed files with 9 additions and 201 deletions
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23
package/base-files/files/lib/upgrade/common.sh
View file

@ -175,10 +175,6 @@ get_magic_long() {
get_image "$@" | dd bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}
refresh_mtd_partitions() {
mtd refresh rootfs
}
jffs2_copy_config() {
if grep rootfs_data /proc/mtd >/dev/null; then
# squashfs+jffs2
@ -191,7 +187,7 @@ jffs2_copy_config() {
default_do_upgrade() {
sync
if [ "$SAVE_CONFIG" -eq 1 -a -z "$USE_REFRESH" ]; then
if [ "$SAVE_CONFIG" -eq 1 ]; then
get_image "$1" | mtd -j "$CONF_TAR" write - "${PART_NAME:-image}"
else
get_image "$1" | mtd write - "${PART_NAME:-image}"
@ -206,19 +202,10 @@ do_upgrade() {
default_do_upgrade "$ARGV"
fi
[ "$SAVE_CONFIG" -eq 1 -a -n "$USE_REFRESH" ] && {
v "Refreshing partitions"
if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
platform_refresh_partitions
else
refresh_mtd_partitions
fi
if type 'platform_copy_config' >/dev/null 2>/dev/null; then
platform_copy_config
else
jffs2_copy_config
fi
}
if [ "$SAVE_CONFIG" -eq 1 ] && type 'platform_copy_config' >/dev/null 2>/dev/null; then
platform_copy_config
fi
v "Upgrade completed"
[ -n "$DELAY" ] && sleep "$DELAY"
ask_bool 1 "Reboot" && {

38
package/system/mtd/src/mtd.c
View file

@ -44,10 +44,6 @@
#include "fis.h"
#include "mtd.h"
#ifndef MTDREFRESH
#define MTDREFRESH _IO('M', 50)
#endif
#define MAX_ARGS 8
#define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */
@ -248,33 +244,6 @@ mtd_erase(const char *mtd)
}
static int
mtd_refresh(const char *mtd)
{
int fd;
if (quiet < 2)
fprintf(stderr, "Refreshing mtd partition %s ... ", mtd);
fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
if (ioctl(fd, MTDREFRESH, NULL)) {
fprintf(stderr, "Failed to refresh the MTD device\n");
close(fd);
exit(1);
}
close(fd);
if (quiet < 2)
fprintf(stderr, "\n");
return 0;
}
static void
indicate_writing(const char *mtd)
{
@ -575,7 +544,6 @@ int main (int argc, char **argv)
CMD_ERASE,
CMD_WRITE,
CMD_UNLOCK,
CMD_REFRESH,
CMD_JFFS2WRITE,
CMD_FIXTRX,
CMD_FIXSEAMA,
@ -658,9 +626,6 @@ int main (int argc, char **argv)
if ((strcmp(argv[0], "unlock") == 0) && (argc == 2)) {
cmd = CMD_UNLOCK;
device = argv[1];
} else if ((strcmp(argv[0], "refresh") == 0) && (argc == 2)) {
cmd = CMD_REFRESH;
device = argv[1];
} else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) {
cmd = CMD_ERASE;
device = argv[1];
@ -739,9 +704,6 @@ int main (int argc, char **argv)
mtd_unlock(device);
mtd_write_jffs2(device, imagefile, jffs2dir);
break;
case CMD_REFRESH:
mtd_refresh(device);
break;
case CMD_FIXTRX:
if (mtd_fixtrx) {
mtd_fixtrx(device, offset);

143
target/linux/generic/patches-3.10/400-rootfs_split.patch
View file

@ -35,7 +35,7 @@
/*
* MTD methods which simply translate the effective address and pass through
@@ -613,6 +615,144 @@ int mtd_del_partition(struct mtd_info *m
@@ -613,6 +615,92 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@ -123,64 +123,12 @@
+
+ return 0;
+}
+
+static int refresh_rootfs_split(struct mtd_info *mtd)
+{
+ struct mtd_partition tpart;
+ struct mtd_part *part;
+ char *name;
+ //int index = 0;
+ int offset, size;
+ int ret;
+
+ part = PART(mtd);
+
+ /* check for the new squashfs offset first */
+ ret = split_squashfs(part->master, part->offset, &offset);
+ if (ret)
+ return ret;
+
+ if ((offset > 0) && !mtd->split) {
+ printk(KERN_INFO "%s: creating new split partition for \"%s\"\n", __func__, mtd->name);
+ /* if we don't have a rootfs split partition, create a new one */
+ tpart.name = (char *) mtd->name;
+ tpart.size = mtd->size;
+ tpart.offset = part->offset;
+
+ return split_rootfs_data(part->master, &part->mtd, &tpart);
+ } else if ((offset > 0) && mtd->split) {
+ /* update the offsets of the existing partition */
+ size = mtd->size + part->offset - offset;
+
+ part = PART(mtd->split);
+ part->offset = offset;
+ part->mtd.size = size;
+ printk(KERN_INFO "%s: %s partition \"" ROOTFS_SPLIT_NAME "\", offset: 0x%06x (0x%06x)\n",
+ __func__, (!strcmp(part->mtd.name, ROOTFS_SPLIT_NAME) ? "updating" : "creating"),
+ (u32) part->offset, (u32) part->mtd.size);
+ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL);
+ strcpy(name, ROOTFS_SPLIT_NAME);
+ part->mtd.name = name;
+ } else if ((offset <= 0) && mtd->split) {
+ printk(KERN_INFO "%s: removing partition \"%s\"\n", __func__, mtd->split->name);
+
+ /* mark existing partition as removed */
+ part = PART(mtd->split);
+ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL);
+ strcpy(name, ROOTFS_REMOVED_NAME);
+ part->mtd.name = name;
+ part->offset = 0;
+ part->mtd.size = 0;
+ }
+
+ return 0;
+}
+#endif /* CONFIG_MTD_ROOTFS_SPLIT */
+
/*
* 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
@@ -629,6 +769,9 @@ int add_mtd_partitions(struct mtd_info *
@@ -629,6 +717,9 @@ int add_mtd_partitions(struct mtd_info *
struct mtd_part *slave;
uint64_t cur_offset = 0;
int i;
@ -190,7 +138,7 @@
printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
@@ -643,12 +786,53 @@ int add_mtd_partitions(struct mtd_info *
@@ -643,6 +734,21 @@ int add_mtd_partitions(struct mtd_info *
add_mtd_device(&slave->mtd);
@ -212,53 +160,6 @@
cur_offset = slave->offset + slave->mtd.size;
}
return 0;
}
+int mtd_device_refresh(struct mtd_info *mtd)
+{
+ int ret = 0;
+
+ if (IS_PART(mtd)) {
+ struct mtd_part *part;
+ struct mtd_info *master;
+
+ part = PART(mtd);
+ master = part->master;
+ if (master->refresh_device)
+ ret = master->refresh_device(master);
+ }
+
+ if (!ret && mtd->refresh_device)
+ ret = mtd->refresh_device(mtd);
+
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+ if (!ret && IS_PART(mtd) && !strcmp(mtd->name, "rootfs"))
+ refresh_rootfs_split(mtd);
+#endif
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtd_device_refresh);
+
static DEFINE_SPINLOCK(part_parser_lock);
static LIST_HEAD(part_parsers);
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1010,6 +1010,12 @@ static int mtdchar_ioctl(struct file *fi
break;
}
+ case MTDREFRESH:
+ {
+ ret = mtd_device_refresh(mtd);
+ break;
+ }
+
default:
ret = -ENOTTY;
}
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -114,6 +114,7 @@ struct nand_ecclayout {
@ -269,48 +170,12 @@
struct mtd_info {
u_char type;
uint32_t flags;
@@ -226,6 +227,9 @@ struct mtd_info {
@@ -226,6 +227,8 @@ struct mtd_info {
int (*_block_markbad) (struct mtd_info *mtd, loff_t ofs);
int (*_suspend) (struct mtd_info *mtd);
void (*_resume) (struct mtd_info *mtd);
+ int (*refresh_device)(struct mtd_info *mtd);
+ struct mtd_info *split;
+
/*
* If the driver is something smart, like UBI, it may need to maintain
* its own reference counting. The below functions are only for driver.
@@ -368,6 +372,7 @@ extern int mtd_device_parse_register(str
int defnr_parts);
#define mtd_device_register(master, parts, nr_parts) \
mtd_device_parse_register(master, NULL, NULL, parts, nr_parts)
+extern int mtd_device_refresh(struct mtd_info *master);
extern int mtd_device_unregister(struct mtd_info *master);
extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
extern int __get_mtd_device(struct mtd_info *mtd);
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -36,12 +36,14 @@
* erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
*/
+struct mtd_partition;
struct mtd_partition {
char *name; /* identifier string */
uint64_t size; /* partition size */
uint64_t offset; /* offset within the master MTD space */
uint32_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) */
+ int (*refresh_partition)(struct mtd_info *);
};
#define MTDPART_OFS_RETAIN (-3)
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -202,6 +202,7 @@ struct otp_info {
* without OOB, e.g., NOR flash.
*/
#define MEMWRITE _IOWR('M', 24, struct mtd_write_req)
+#define MTDREFRESH _IO('M', 50)
/*
* Obsolete legacy interface. Keep it in order not to break userspace

6
target/linux/x86/base-files/lib/upgrade/platform.sh
View file

@ -1,5 +1,3 @@
USE_REFRESH=1
x86_get_rootfs() {
local rootfsdev
local rootfstype
@ -27,10 +25,6 @@ platform_check_image() {
esac
}
platform_refresh_partitions() {
return 0
}
platform_copy_config() {
local rootfs="$(x86_get_rootfs)"
local rootfsdev="${rootfs##*:}"