30 nilfs_mdt_insert_new_block(struct inode *inode, unsigned long block,  in nilfs_mdt_insert_new_block()  argument
32 			   void (*init_block)(struct inode *,  in nilfs_mdt_insert_new_block()  argument
35 	struct nilfs_inode_info *ii = NILFS_I(inode);  in nilfs_mdt_insert_new_block()
51 	memset(kaddr + bh_offset(bh), 0, i_blocksize(inode));  in nilfs_mdt_insert_new_block()
53 		init_block(inode, bh, kaddr);  in nilfs_mdt_insert_new_block()
59 	nilfs_mdt_mark_dirty(inode);  in nilfs_mdt_insert_new_block()
61 	trace_nilfs2_mdt_insert_new_block(inode, inode->i_ino, block);  in nilfs_mdt_insert_new_block()
66 static int nilfs_mdt_create_block(struct inode *inode, unsigned long block,  in nilfs_mdt_create_block()  argument
68 				  void (*init_block)(struct inode *,  in nilfs_mdt_create_block()  argument
72 	struct super_block *sb = inode->i_sb;  in nilfs_mdt_create_block()
80 	bh = nilfs_grab_buffer(inode, inode->i_mapping, block, 0);  in nilfs_mdt_create_block()
93 	err = nilfs_mdt_insert_new_block(inode, block, bh, init_block);  in nilfs_mdt_create_block()
114 nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,  in nilfs_mdt_submit_block()  argument
121 	bh = nilfs_grab_buffer(inode, inode->i_mapping, blkoff, 0);  in nilfs_mdt_submit_block()
142 	ret = nilfs_bmap_lookup(NILFS_I(inode)->i_bmap, blkoff, &blknum);  in nilfs_mdt_submit_block()
147 	map_bh(bh, inode->i_sb, (sector_t)blknum);  in nilfs_mdt_submit_block()
154 	trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, mode);  in nilfs_mdt_submit_block()
167 static int nilfs_mdt_read_block(struct inode *inode, unsigned long block,  in nilfs_mdt_read_block()  argument
175 	err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, 0, &first_bh);  in nilfs_mdt_read_block()
185 			err = nilfs_mdt_submit_block(inode, blkoff, REQ_OP_READ,  in nilfs_mdt_read_block()
202 		nilfs_err(inode->i_sb,  in nilfs_mdt_read_block()
204 			  inode->i_ino, block);  in nilfs_mdt_read_block()
241 int nilfs_mdt_get_block(struct inode *inode, unsigned long blkoff, int create,  in nilfs_mdt_get_block()  argument
242 			void (*init_block)(struct inode *,  in nilfs_mdt_get_block()  argument
250 	ret = nilfs_mdt_read_block(inode, blkoff, !create, out_bh);  in nilfs_mdt_get_block()
254 	ret = nilfs_mdt_create_block(inode, blkoff, out_bh, init_block);  in nilfs_mdt_get_block()
284 int nilfs_mdt_find_block(struct inode *inode, unsigned long start,  in nilfs_mdt_find_block()  argument
294 	ret = nilfs_mdt_read_block(inode, start, true, out_bh);  in nilfs_mdt_find_block()
302 	ret = nilfs_bmap_seek_key(NILFS_I(inode)->i_bmap, start + 1, &next);  in nilfs_mdt_find_block()
305 			ret = nilfs_mdt_read_block(inode, next, true, out_bh);  in nilfs_mdt_find_block()
328 int nilfs_mdt_delete_block(struct inode *inode, unsigned long block)  in nilfs_mdt_delete_block()  argument
330 	struct nilfs_inode_info *ii = NILFS_I(inode);  in nilfs_mdt_delete_block()
335 		nilfs_mdt_mark_dirty(inode);  in nilfs_mdt_delete_block()
336 		nilfs_mdt_forget_block(inode, block);  in nilfs_mdt_delete_block()
356 int nilfs_mdt_forget_block(struct inode *inode, unsigned long block)  in nilfs_mdt_forget_block()  argument
359 		(PAGE_SHIFT - inode->i_blkbits);  in nilfs_mdt_forget_block()
365 	page = find_lock_page(inode->i_mapping, index);  in nilfs_mdt_forget_block()
372 		(PAGE_SHIFT - inode->i_blkbits);  in nilfs_mdt_forget_block()
384 	    invalidate_inode_pages2_range(inode->i_mapping, index, index) != 0)  in nilfs_mdt_forget_block()
389 int nilfs_mdt_fetch_dirty(struct inode *inode)  in nilfs_mdt_fetch_dirty()  argument
391 	struct nilfs_inode_info *ii = NILFS_I(inode);  in nilfs_mdt_fetch_dirty()
403 	struct inode *inode = page->mapping->host;  in nilfs_mdt_write_page()  local
407 	if (inode && sb_rdonly(inode->i_sb)) {  in nilfs_mdt_write_page()
422 	if (!inode)  in nilfs_mdt_write_page()
425 	sb = inode->i_sb;  in nilfs_mdt_write_page()
430 		nilfs_flush_segment(sb, inode->i_ino);  in nilfs_mdt_write_page()
444 int nilfs_mdt_init(struct inode *inode, gfp_t gfp_mask, size_t objsz)  in nilfs_mdt_init()  argument
453 	inode->i_private = mi;  in nilfs_mdt_init()
455 	inode->i_mode = S_IFREG;  in nilfs_mdt_init()
456 	mapping_set_gfp_mask(inode->i_mapping, gfp_mask);  in nilfs_mdt_init()
458 	inode->i_op = &def_mdt_iops;  in nilfs_mdt_init()
459 	inode->i_fop = &def_mdt_fops;  in nilfs_mdt_init()
460 	inode->i_mapping->a_ops = &def_mdt_aops;  in nilfs_mdt_init()
469 void nilfs_mdt_clear(struct inode *inode)  in nilfs_mdt_clear()  argument
471 	struct nilfs_mdt_info *mdi = NILFS_MDT(inode);  in nilfs_mdt_clear()
474 		nilfs_palloc_destroy_cache(inode);  in nilfs_mdt_clear()
481 void nilfs_mdt_destroy(struct inode *inode)  in nilfs_mdt_destroy()  argument
483 	struct nilfs_mdt_info *mdi = NILFS_MDT(inode);  in nilfs_mdt_destroy()
489 void nilfs_mdt_set_entry_size(struct inode *inode, unsigned int entry_size,  in nilfs_mdt_set_entry_size()  argument
492 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);  in nilfs_mdt_set_entry_size()
495 	mi->mi_entries_per_block = i_blocksize(inode) / entry_size;  in nilfs_mdt_set_entry_size()
504 int nilfs_mdt_setup_shadow_map(struct inode *inode,  in nilfs_mdt_setup_shadow_map()  argument
507 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);  in nilfs_mdt_setup_shadow_map()
511 	nilfs_mapping_init(&shadow->frozen_data, inode);  in nilfs_mdt_setup_shadow_map()
513 	nilfs_mapping_init(&shadow->frozen_btnodes, inode);  in nilfs_mdt_setup_shadow_map()
522 int nilfs_mdt_save_to_shadow_map(struct inode *inode)  in nilfs_mdt_save_to_shadow_map()  argument
524 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);  in nilfs_mdt_save_to_shadow_map()
525 	struct nilfs_inode_info *ii = NILFS_I(inode);  in nilfs_mdt_save_to_shadow_map()
529 	ret = nilfs_copy_dirty_pages(&shadow->frozen_data, inode->i_mapping);  in nilfs_mdt_save_to_shadow_map()
543 int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh)  in nilfs_mdt_freeze_buffer()  argument
545 	struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;  in nilfs_mdt_freeze_buffer()
548 	int blkbits = inode->i_blkbits;  in nilfs_mdt_freeze_buffer()
575 nilfs_mdt_get_frozen_buffer(struct inode *inode, struct buffer_head *bh)  in nilfs_mdt_get_frozen_buffer()  argument
577 	struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;  in nilfs_mdt_get_frozen_buffer()
585 			n = bh_offset(bh) >> inode->i_blkbits;  in nilfs_mdt_get_frozen_buffer()
611 void nilfs_mdt_restore_from_shadow_map(struct inode *inode)  in nilfs_mdt_restore_from_shadow_map()  argument
613 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);  in nilfs_mdt_restore_from_shadow_map()
614 	struct nilfs_inode_info *ii = NILFS_I(inode);  in nilfs_mdt_restore_from_shadow_map()
620 		nilfs_palloc_clear_cache(inode);  in nilfs_mdt_restore_from_shadow_map()
622 	nilfs_clear_dirty_pages(inode->i_mapping, true);  in nilfs_mdt_restore_from_shadow_map()
623 	nilfs_copy_back_pages(inode->i_mapping, &shadow->frozen_data);  in nilfs_mdt_restore_from_shadow_map()
637 void nilfs_mdt_clear_shadow_map(struct inode *inode)  in nilfs_mdt_clear_shadow_map()  argument
639 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);  in nilfs_mdt_clear_shadow_map()