[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>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 69f875250500..1d12e4f7d69f 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1433,8 +1433,8 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
          * 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 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 
                 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