[PATCH] ext4: switch fsblk to sector_t
Redefine ext3 in-kernel filesystem block type (ext3_fsblk_t) from unsigned
long to sector_t, to allow kernel to handle >32 bit ext3 blocks.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 69f8752..1d12e4f 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1433,8 +1433,8 @@
* block sizes. We need to calculate the offset from buffer start.
*/
if (blocksize != EXT4_MIN_BLOCK_SIZE) {
- logic_sb_block = (sb_block * EXT4_MIN_BLOCK_SIZE) / blocksize;
- offset = (sb_block * EXT4_MIN_BLOCK_SIZE) % blocksize;
+ logic_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE;
+ offset = sector_div(logic_sb_block, blocksize);
} else {
logic_sb_block = sb_block;
}
@@ -1539,8 +1539,8 @@
brelse (bh);
sb_set_blocksize(sb, blocksize);
- logic_sb_block = (sb_block * EXT4_MIN_BLOCK_SIZE) / blocksize;
- offset = (sb_block * EXT4_MIN_BLOCK_SIZE) % blocksize;
+ logic_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE;
+ offset = sector_div(logic_sb_block, blocksize);
bh = sb_bread(sb, logic_sb_block);
if (!bh) {
printk(KERN_ERR