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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-09-04 19:23:50 +0400
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-10-23 04:24:38 +0400
commitc6e071884aca360a14c21757d760e76ec34b4894 (patch)
tree341d4130f06f1063bd63ed8a8cdb3f602848ff17 /fs/nilfs2/mdt.h
parent032dbb3b503a30fce732ec4c05525d0abed1f1d6 (diff)
downloadlinux-c6e071884aca360a14c21757d760e76ec34b4894.tar.xz
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>
Diffstat (limited to 'fs/nilfs2/mdt.h')
-rw-r--r--fs/nilfs2/mdt.h8
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/nilfs2/mdt.h b/fs/nilfs2/mdt.h
index 73ff7c055715..76356d2899ed 100644
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -37,7 +37,6 @@ struct nilfs_shadow_map {
/**
* 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 @@ struct nilfs_shadow_map {
* @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 nilfs_mdt_info *NILFS_MDT(const struct inode *inode)
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 void nilfs_mdt_clear_dirty(struct inode *inode)
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) \