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linux/generic: fix creation of rootfs_data 

SVN-Revision: 23930
This commit is contained in:
Alexandros C. Couloumbis 2010-11-08 14:45:24 +00:00
parent 362ef97928
commit 75cf9a4cd3
1 changed files with 15 additions and 12 deletions
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27
target/linux/generic/patches-2.6.37/065-rootfs_split.patch
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@ -27,8 +27,8 @@
+#include <linux/magic.h> +#include <linux/magic.h>
#include <linux/err.h> #include <linux/err.h>
/* Our partition linked list */ #define MTD_ERASE_PARTIAL 0x8000 /* partition only covers parts of an erase block */
@@ -48,7 +50,7 @@ struct mtd_part { @@ -50,7 +52,7 @@ struct mtd_part {
* the pointer to that structure with this macro. * the pointer to that structure with this macro.
*/ */
#define PART(x) ((struct mtd_part *)(x)) #define PART(x) ((struct mtd_part *)(x))
@ -37,7 +37,7 @@
/* /*
* MTD methods which simply translate the effective address and pass through * MTD methods which simply translate the effective address and pass through
@@ -618,6 +620,150 @@ int mtd_del_partition(struct mtd_info *m @@ -691,6 +693,153 @@ int mtd_del_partition(struct mtd_info *m
} }
EXPORT_SYMBOL_GPL(mtd_del_partition); EXPORT_SYMBOL_GPL(mtd_del_partition);
@ -92,8 +92,7 @@
+{ +{
+ struct mtd_partition *dpart; + struct mtd_partition *dpart;
+ struct mtd_part *slave = NULL; + struct mtd_part *slave = NULL;
+ int split_offset = 0; + int ret, split_offset = 0;
+ int ret;
+ +
+ ret = split_squashfs(master, part->offset, &split_offset); + ret = split_squashfs(master, part->offset, &split_offset);
+ if (ret) + if (ret)
@ -123,10 +122,14 @@
+ ROOTFS_SPLIT_NAME, dpart->offset, dpart->size); + ROOTFS_SPLIT_NAME, dpart->offset, dpart->size);
+ +
+ slave = allocate_partition(master, dpart, 0, split_offset); + slave = allocate_partition(master, dpart, 0, split_offset);
+ if (!slave) { + if (IS_ERR(slave))
+ kfree(dpart); + return PTR_ERR(slave);
+ return -ENOMEM; + mutex_lock(&mtd_partitions_mutex);
+ } + list_add(&slave->list, &mtd_partitions);
+ mutex_unlock(&mtd_partitions_mutex);
+
+ add_mtd_device(&slave->mtd);
+
+ rpart->split = &slave->mtd; + rpart->split = &slave->mtd;
+ +
+ return 0; + return 0;
@ -188,7 +191,7 @@
/* /*
* This function, given a master MTD object and a partition table, creates * 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 * and registers slave MTD objects which are bound to the master according to
@@ -633,7 +779,7 @@ int add_mtd_partitions(struct mtd_info * @@ -706,7 +855,7 @@ int add_mtd_partitions(struct mtd_info *
{ {
struct mtd_part *slave; struct mtd_part *slave;
uint64_t cur_offset = 0; uint64_t cur_offset = 0;
@ -197,7 +200,7 @@
printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
@@ -648,6 +794,21 @@ int add_mtd_partitions(struct mtd_info * @@ -721,6 +870,21 @@ int add_mtd_partitions(struct mtd_info *
add_mtd_device(&slave->mtd); add_mtd_device(&slave->mtd);
@ -219,7 +222,7 @@
cur_offset = slave->offset + slave->mtd.size; cur_offset = slave->offset + slave->mtd.size;
} }
@@ -655,6 +816,32 @@ int add_mtd_partitions(struct mtd_info * @@ -728,6 +892,32 @@ int add_mtd_partitions(struct mtd_info *
} }
EXPORT_SYMBOL(add_mtd_partitions); EXPORT_SYMBOL(add_mtd_partitions);