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>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/nilfs2/btree.h b/fs/nilfs2/btree.h
index 4766deb52fb1..48aad2a0c59f 100644
--- a/fs/nilfs2/btree.h
+++ b/fs/nilfs2/btree.h
@@ -108,10 +108,9 @@ struct nilfs_btree {
 
 int nilfs_btree_path_cache_init(void);
 void nilfs_btree_path_cache_destroy(void);
-int nilfs_btree_init(struct nilfs_bmap *, __u64, __u64);
+int nilfs_btree_init(struct nilfs_bmap *);
 int nilfs_btree_convert_and_insert(struct nilfs_bmap *, __u64, __u64,
-                                   const __u64 *, const __u64 *,
-                                   int, __u64, __u64);
+                                   const __u64 *, const __u64 *, int);
 void nilfs_btree_init_gc(struct nilfs_bmap *);
 
 #endif  /* _NILFS_BTREE_H */