nilfs2: remove useless b_low and b_high fields from nilfs_bmap struct
This will cut off 16 bytes from the nilfs_bmap struct which is
embedded in the on-memory inode of nilfs.
The b_high field was never used, and the b_low field stores a constant
value which can be determined by whether the inode uses btree for
block mapping or not.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index cf5c5d2..de67d2a 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -101,8 +101,7 @@
if (n < 0)
return n;
ret = nilfs_btree_convert_and_insert(
- bmap, key, ptr, keys, ptrs, n,
- NILFS_BMAP_LARGE_LOW, NILFS_BMAP_LARGE_HIGH);
+ bmap, key, ptr, keys, ptrs, n);
if (ret == 0)
bmap->b_u.u_flags |= NILFS_BMAP_LARGE;
@@ -158,8 +157,7 @@
if (n < 0)
return n;
ret = nilfs_direct_delete_and_convert(
- bmap, key, keys, ptrs, n,
- NILFS_BMAP_SMALL_LOW, NILFS_BMAP_SMALL_HIGH);
+ bmap, key, keys, ptrs, n);
if (ret == 0)
bmap->b_u.u_flags &= ~NILFS_BMAP_LARGE;
@@ -681,12 +679,7 @@
}
return (bmap->b_u.u_flags & NILFS_BMAP_LARGE) ?
- nilfs_btree_init(bmap,
- NILFS_BMAP_LARGE_LOW,
- NILFS_BMAP_LARGE_HIGH) :
- nilfs_direct_init(bmap,
- NILFS_BMAP_SMALL_LOW,
- NILFS_BMAP_SMALL_HIGH);
+ nilfs_btree_init(bmap) : nilfs_direct_init(bmap);
}
/**