nilfs2: delete mark_inode_dirty from nilfs_set_link

Delete mark_inode_dirty() from nilfs_set_link() to reduce redundant
mark_inode_dirty() calls in caller of nilfs_set_link().

Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

fs/nilfs2/dir.c

@@ -459,7 +459,6 @@ void nilfs_set_link(struct inode *dir, struct nilfs_dir_entry *de,
 	nilfs_put_page(page);
 	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
 /*	NILFS_I(dir)->i_flags &= ~NILFS_BTREE_FL; */
-	mark_inode_dirty(dir);
 }
 
 /*

fs/nilfs2/namei.c

@@ -397,6 +397,7 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			goto out_dir;
 		inode_inc_link_count(old_inode);
 		nilfs_set_link(new_dir, new_de, new_page, old_inode);
+		mark_inode_dirty(new_dir);
 		new_inode->i_ctime = CURRENT_TIME;
 		if (dir_de)
 			drop_nlink(new_inode);
@@ -425,12 +426,13 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	old_inode->i_ctime = CURRENT_TIME;
 
 	nilfs_delete_entry(old_de, old_page);
-	inode_dec_link_count(old_inode);
+	drop_nlink(old_inode);
 
 	if (dir_de) {
 		nilfs_set_link(old_inode, dir_de, dir_page, new_dir);
 		inode_dec_link_count(old_dir);
 	}
+	mark_inode_dirty(old_inode);
 
 	err = nilfs_transaction_commit(old_dir->i_sb);
 	return err;