nilfs2: get rid of mi_nilfs back pointer to nilfs object
This removes a back pointer to nilfs object from nilfs_mdt_info
structure that is attached to metadata files.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 44326cf..32695f3 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -78,7 +78,7 @@
struct buffer_head *,
void *))
{
- struct the_nilfs *nilfs = NILFS_MDT(inode)->mi_nilfs;
+ struct the_nilfs *nilfs = NILFS_I_NILFS(inode);
struct super_block *sb = inode->i_sb;
struct nilfs_transaction_info ti;
struct buffer_head *bh;
@@ -167,9 +167,7 @@
unlock_buffer(bh);
goto failed_bh;
}
- bh->b_bdev = NILFS_MDT(inode)->mi_nilfs->ns_bdev;
- bh->b_blocknr = (sector_t)blknum;
- set_buffer_mapped(bh);
+ map_bh(bh, inode->i_sb, (sector_t)blknum);
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
@@ -412,7 +410,7 @@
return 0;
sb = inode->i_sb;
- nilfs = NILFS_MDT(inode)->mi_nilfs;
+ nilfs = NILFS_SB(sb)->s_nilfs;
if (!sb) {
down_read(&nilfs->ns_writer_sem);
@@ -452,7 +450,6 @@
if (!mi)
return -ENOMEM;
- mi->mi_nilfs = NILFS_I_NILFS(inode);
init_rwsem(&mi->mi_sem);
inode->i_private = mi;
