Define and use e2fs_lbn_t in ext2fs.

In line to what is done in UFS, define an internal type
e2fs_lbn_t for the logical block numbers.

This change is basically a no-op as the new type is unchanged
(int32_t) but it may be useful as bumping this may be required
for ext4fs.

Also, as pointed out by Bruce Evans:

-Use daddr_t for daddr in ext2_bmaparray(). This seems to
improve reliability with the reallocblks option.
- Add a cast to the fsbtodb() macro as in UFS.

Reviewed by:	bde
MFC after:	3 days

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/fs/ext2fs/ext2_alloc.c b/sys/fs/ext2fs/ext2_alloc.c
index 71e3612..9bc4714 100644
--- a/sys/fs/ext2fs/ext2_alloc.c
+++ b/sys/fs/ext2fs/ext2_alloc.c
@@ -165,7 +165,8 @@ ext2_reallocblks(struct vop_reallocblks_args *ap)
 	struct ext2mount *ump;
 	struct cluster_save *buflist;
 	struct indir start_ap[NIADDR + 1], end_ap[NIADDR + 1], *idp;
-	int32_t start_lbn, end_lbn, soff, newblk, blkno;
+	e2fs_lbn_t start_lbn, end_lbn;
+	int32_t soff, newblk, blkno;
 	int i, len, start_lvl, end_lvl, pref, ssize;
 
 	if (doreallocblks == 0)
@@ -550,7 +551,7 @@ ext2_dirpref(struct inode *pip)
  * that will hold the pointer
  */
 int32_t
-ext2_blkpref(struct inode *ip, int32_t lbn, int indx, int32_t *bap,
+ext2_blkpref(struct inode *ip, e2fs_lbn_t lbn, int indx, int32_t *bap,
     int32_t blocknr)
 {
 	int	tmp;