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kernel: mtd: allow partial block erase

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This fixes error erasing partial mtd partition which does not start on
eraseblock boundary and allows using fconfig to configure redboot on
devices such as the Gateworks Cambria.

Signed-off-by: Maciej Skrzypek <maciej.skrzypek@flytronic.pl>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41733 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Felix Fietkau 2014-07-18 14:36:38 +00:00
parent 872325fe93
commit b045adea9e
7 changed files with 28 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
target/linux/generic/patches-3.10/411-mtd-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -231,13 +233,60 @@ static int part_erase(struct mtd_info *m
@@ -231,13 +233,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -245,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
@@ -245,7 +295,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -503,18 +570,24 @@ static struct mtd_part *allocate_partiti
@@ -503,18 +571,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */

7
target/linux/generic/patches-3.13/411-mtd-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -231,13 +233,60 @@ static int part_erase(struct mtd_info *m
@@ -231,13 +233,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -245,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
@@ -245,7 +295,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -503,18 +570,24 @@ static struct mtd_part *allocate_partiti
@@ -503,18 +571,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */

7
target/linux/generic/patches-3.14/411-mtd-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -231,13 +233,60 @@ static int part_erase(struct mtd_info *m
@@ -231,13 +233,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -245,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
@@ -245,7 +295,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -503,18 +570,24 @@ static struct mtd_part *allocate_partiti
@@ -503,18 +571,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */

7
target/linux/generic/patches-3.3/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -252,13 +254,60 @@ static int part_erase(struct mtd_info *m
@@ -252,13 +254,61 @@ static int part_erase(struct mtd_info *m
return -EROFS;
if (instr->addr >= mtd->size)
return -EINVAL;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -266,7 +315,25 @@ void mtd_erase_callback(struct erase_inf
@@ -266,7 +316,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -537,18 +604,24 @@ static struct mtd_part *allocate_partiti
@@ -537,18 +605,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */

7
target/linux/generic/patches-3.6/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -230,13 +232,60 @@ static int part_erase(struct mtd_info *m
@@ -230,13 +232,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -244,7 +293,25 @@ void mtd_erase_callback(struct erase_inf
@@ -244,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -504,18 +571,24 @@ static struct mtd_part *allocate_partiti
@@ -504,18 +572,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */

7
target/linux/generic/patches-3.8/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -230,13 +232,60 @@ static int part_erase(struct mtd_info *m
@@ -230,13 +232,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -244,7 +293,25 @@ void mtd_erase_callback(struct erase_inf
@@ -244,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -504,18 +571,24 @@ static struct mtd_part *allocate_partiti
@@ -504,18 +572,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */

7
target/linux/generic/patches-3.9/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -230,13 +232,60 @@ static int part_erase(struct mtd_info *m
@@ -230,13 +232,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -33,6 +33,7 @@
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->len += instr->erase_buf_ofs;
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
@ -70,7 +71,7 @@
return ret;
}
@@ -244,7 +293,25 @@ void mtd_erase_callback(struct erase_inf
@@ -244,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
@ -96,7 +97,7 @@
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -504,18 +571,24 @@ static struct mtd_part *allocate_partiti
@@ -504,18 +572,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */