X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/4363af719caa631efcf827b9074df44f6066b023..4a72ea39d66c956670387a59623990d9c6ee6397:/target/linux/generic-2.6/patches-2.6.27/065-rootfs_split.patch

diff --git a/target/linux/generic-2.6/patches-2.6.27/065-rootfs_split.patch b/target/linux/generic-2.6/patches-2.6.27/065-rootfs_split.patch
index aff95ccec..685a246a8 100644
--- a/target/linux/generic-2.6/patches-2.6.27/065-rootfs_split.patch
+++ b/target/linux/generic-2.6/patches-2.6.27/065-rootfs_split.patch
@@ -37,7 +37,7 @@
  
  /*
   * MTD methods which simply translate the effective address and pass through
-@@ -489,6 +491,148 @@ out_register:
+@@ -489,6 +491,147 @@ out_register:
  	return slave;
  }
  
@@ -46,32 +46,31 @@
 +#define ROOTFS_REMOVED_NAME "<removed>"
 +static int split_squashfs(struct mtd_info *master, int offset, int *split_offset)
 +{
-+	char buf[512];
-+	struct squashfs_super_block *sb = (struct squashfs_super_block *) buf;
++	struct squashfs_super_block sb;
 +	int len, ret;
 +
-+	ret = master->read(master, offset, sizeof(*sb), &len, buf);
-+	if (ret || (len != sizeof(*sb))) {
++	ret = master->read(master, offset, sizeof(sb), &len, (void *) &sb);
++	if (ret || (len != sizeof(sb))) {
 +		printk(KERN_ALERT "split_squashfs: error occured while reading "
 +			"from \"%s\"\n", master->name);
 +		return -EINVAL;
 +	}
 +
-+	if (*((u32 *) buf) != SQUASHFS_MAGIC) {
++	if (sb.s_magic != SQUASHFS_MAGIC) {
 +		printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n",
 +			master->name);
 +		*split_offset = 0;
 +		return 0;
 +	}
 +
-+	if (sb->bytes_used <= 0) {
++	if (sb.bytes_used <= 0) {
 +		printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n",
 +			master->name);
 +		*split_offset = 0;
 +		return 0;
 +	}
 +
-+	len = (u32) sb->bytes_used;
++	len = (u32) sb.bytes_used;
 +	len += (offset & 0x000fffff);
 +	len +=  (master->erasesize - 1);
 +	len &= ~(master->erasesize - 1);
@@ -186,7 +185,7 @@
  /*
   * 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
-@@ -502,14 +646,29 @@ int add_mtd_partitions(struct mtd_info *
+@@ -502,14 +645,29 @@ int add_mtd_partitions(struct mtd_info *
  {
  	struct mtd_part *slave;
  	u_int32_t cur_offset = 0;
@@ -219,7 +218,7 @@
  		cur_offset = slave->offset + slave->mtd.size;
  	}
  
-@@ -517,6 +676,32 @@ int add_mtd_partitions(struct mtd_info *
+@@ -517,6 +675,32 @@ int add_mtd_partitions(struct mtd_info *
  }
  EXPORT_SYMBOL(add_mtd_partitions);
  
@@ -373,57 +372,53 @@
  	return err;
  }
  
-@@ -210,7 +246,12 @@ static int block2mtd_write(struct mtd_in
+@@ -210,52 +246,29 @@ static int block2mtd_write(struct mtd_in
  static void block2mtd_sync(struct mtd_info *mtd)
  {
  	struct block2mtd_dev *dev = mtd->priv;
 -	sync_blockdev(dev->blkdev);
-+
-+	read_lock(&dev->bdev_mutex);
-+	if (dev->blkdev)
-+		sync_blockdev(dev->blkdev);
-+	read_unlock(&dev->bdev_mutex);
-+
- 	return;
- }
- 
-@@ -288,47 +288,17 @@ static void block2mtd_sync(struct mtd_info *mtd)
- }
- 
- 
+-	return;
+-}
+-
+-
 -static void block2mtd_free_device(struct block2mtd_dev *dev)
 -{
 -	if (!dev)
 -		return;
 -
 -	kfree(dev->mtd.name);
--
+ 
 -	if (dev->blkdev) {
 -		invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping,
 -					0, -1);
 -		close_bdev_excl(dev->blkdev);
 -	}
--
++	read_lock(&dev->bdev_mutex);
++	if (dev->blkdev)
++		sync_blockdev(dev->blkdev);
++	read_unlock(&dev->bdev_mutex);
+ 
 -	kfree(dev);
--}
--
--
++	return;
+ }
+ 
+ 
 -/* FIXME: ensure that mtd->size % erase_size == 0 */
 -static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
 +static int _open_bdev(struct block2mtd_dev *dev)
  {
  	struct block_device *bdev;
-- 	struct block2mtd_dev *dev;
-- 	struct mtd_partition *part;
-- 	char *name;
- 
+-	struct block2mtd_dev *dev;
+-	struct mtd_partition *part;
+-	char *name;
+-
 -	if (!devname)
 -		return NULL;
 -
 -	dev = kzalloc(sizeof(struct block2mtd_dev), GFP_KERNEL);
 -	if (!dev)
 -		return NULL;
--
+ 
  	/* Get a handle on the device */
 -	bdev = open_bdev_excl(devname, O_RDWR, NULL);
 +	bdev = open_bdev_excl(dev->devname, O_RDWR, NULL);
@@ -438,7 +433,7 @@
  		if (devt) {
  			bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
  		}
-@@ -263,17 +295,97 @@ static struct block2mtd_dev *add_device(
+@@ -263,17 +276,97 @@ static struct block2mtd_dev *add_device(
  #endif
  
  	if (IS_ERR(bdev)) {
@@ -539,7 +534,7 @@
  
  	if (!mtdname)
  		mtdname = devname;
-@@ -297,6 +408,7 @@ static struct block2mtd_dev *add_device(
+@@ -297,6 +390,7 @@ static struct block2mtd_dev *add_device(
  	dev->mtd.read = block2mtd_read;
  	dev->mtd.priv = dev;
  	dev->mtd.owner = THIS_MODULE;