fs/nilfs2/mdt.h

21  * @inode: holder of page caches used in shadow mapping
26 	struct inode *inode;
54 static inline struct nilfs_mdt_info *NILFS_MDT(const struct inode *inode)
56 	return inode->i_private;
59 static inline int nilfs_is_metadata_file_inode(const struct inode *inode)
61 	return inode->i_private != NULL;
67 int nilfs_mdt_get_block(struct inode *, unsigned long, int,
68 			void (*init_block)(struct inode *,
71 int nilfs_mdt_find_block(struct inode *inode, unsigned long start,
74 int nilfs_mdt_delete_block(struct inode *, unsigned long);
75 int nilfs_mdt_forget_block(struct inode *, unsigned long);
76 int nilfs_mdt_fetch_dirty(struct inode *);
78 int nilfs_mdt_init(struct inode *inode, gfp_t gfp_mask, size_t objsz);
79 void nilfs_mdt_clear(struct inode *inode);
80 void nilfs_mdt_destroy(struct inode *inode);
82 void nilfs_mdt_set_entry_size(struct inode *, unsigned int, unsigned int);
84 int nilfs_mdt_setup_shadow_map(struct inode *inode,
86 int nilfs_mdt_save_to_shadow_map(struct inode *inode);
87 void nilfs_mdt_restore_from_shadow_map(struct inode *inode);
88 void nilfs_mdt_clear_shadow_map(struct inode *inode);
89 int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh);
90 struct buffer_head *nilfs_mdt_get_frozen_buffer(struct inode *inode,
93 static inline void nilfs_mdt_mark_dirty(struct inode *inode)
95 	if (!test_bit(NILFS_I_DIRTY, &NILFS_I(inode)->i_state))
96 		set_bit(NILFS_I_DIRTY, &NILFS_I(inode)->i_state);
99 static inline void nilfs_mdt_clear_dirty(struct inode *inode)
101 	clear_bit(NILFS_I_DIRTY, &NILFS_I(inode)->i_state);
104 static inline __u64 nilfs_mdt_cno(struct inode *inode)
106 	return ((struct the_nilfs *)inode->i_sb->s_fs_info)->ns_cno;
110 nilfs_mdt_bgl_lock(struct inode *inode, unsigned int block_group)
112 	return bgl_lock_ptr(NILFS_MDT(inode)->mi_bgl, block_group);