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.h b/fs/nilfs2/mdt.h
index 73ff7c0..76356d2 100644
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -37,7 +37,6 @@
/**
* struct nilfs_mdt_info - on-memory private data of meta data files
- * @mi_nilfs: back pointer to the_nilfs struct
* @mi_sem: reader/writer semaphore for meta data operations
* @mi_bgl: per-blockgroup locking
* @mi_entry_size: size of an entry
@@ -49,7 +48,6 @@
* @mi_blocks_per_desc_block: number of blocks per descriptor block
*/
struct nilfs_mdt_info {
- struct the_nilfs *mi_nilfs;
struct rw_semaphore mi_sem;
struct blockgroup_lock *mi_bgl;
unsigned mi_entry_size;
@@ -68,9 +66,7 @@
static inline struct the_nilfs *NILFS_I_NILFS(struct inode *inode)
{
- struct super_block *sb = inode->i_sb;
-
- return sb ? NILFS_SB(sb)->s_nilfs : NILFS_MDT(inode)->mi_nilfs;
+ return NILFS_SB(inode->i_sb)->s_nilfs;
}
/* Default GFP flags using highmem */
@@ -117,7 +113,7 @@
static inline __u64 nilfs_mdt_cno(struct inode *inode)
{
- return NILFS_MDT(inode)->mi_nilfs->ns_cno;
+ return NILFS_I_NILFS(inode)->ns_cno;
}
#define nilfs_mdt_bgl_lock(inode, bg) \