43 			   struct buffer_head *bh,  in nilfs_mdt_insert_new_block()  argument
54 	bh->b_blocknr = 0;  in nilfs_mdt_insert_new_block()
56 	ret = nilfs_bmap_insert(ii->i_bmap, block, (unsigned long)bh);  in nilfs_mdt_insert_new_block()
60 	set_buffer_mapped(bh);  in nilfs_mdt_insert_new_block()
62 	kaddr = kmap_atomic(bh->b_page);  in nilfs_mdt_insert_new_block()
63 	memset(kaddr + bh_offset(bh), 0, 1 << inode->i_blkbits);  in nilfs_mdt_insert_new_block()
65 		init_block(inode, bh, kaddr);  in nilfs_mdt_insert_new_block()
66 	flush_dcache_page(bh->b_page);  in nilfs_mdt_insert_new_block()
69 	set_buffer_uptodate(bh);  in nilfs_mdt_insert_new_block()
70 	mark_buffer_dirty(bh);  in nilfs_mdt_insert_new_block()
86 	struct buffer_head *bh;  in nilfs_mdt_create_block()  local
92 	bh = nilfs_grab_buffer(inode, inode->i_mapping, block, 0);  in nilfs_mdt_create_block()
93 	if (unlikely(!bh))  in nilfs_mdt_create_block()
97 	if (buffer_uptodate(bh))  in nilfs_mdt_create_block()
100 	wait_on_buffer(bh);  in nilfs_mdt_create_block()
101 	if (buffer_uptodate(bh))  in nilfs_mdt_create_block()
104 	bh->b_bdev = sb->s_bdev;  in nilfs_mdt_create_block()
105 	err = nilfs_mdt_insert_new_block(inode, block, bh, init_block);  in nilfs_mdt_create_block()
107 		get_bh(bh);  in nilfs_mdt_create_block()
108 		*out_bh = bh;  in nilfs_mdt_create_block()
112 	unlock_page(bh->b_page);  in nilfs_mdt_create_block()
113 	page_cache_release(bh->b_page);  in nilfs_mdt_create_block()
114 	brelse(bh);  in nilfs_mdt_create_block()
129 	struct buffer_head *bh;  in nilfs_mdt_submit_block()  local
133 	bh = nilfs_grab_buffer(inode, inode->i_mapping, blkoff, 0);  in nilfs_mdt_submit_block()
134 	if (unlikely(!bh))  in nilfs_mdt_submit_block()
138 	if (buffer_uptodate(bh))  in nilfs_mdt_submit_block()
142 		if (!trylock_buffer(bh)) {  in nilfs_mdt_submit_block()
147 		lock_buffer(bh);  in nilfs_mdt_submit_block()
149 	if (buffer_uptodate(bh)) {  in nilfs_mdt_submit_block()
150 		unlock_buffer(bh);  in nilfs_mdt_submit_block()
156 		unlock_buffer(bh);  in nilfs_mdt_submit_block()
159 	map_bh(bh, inode->i_sb, (sector_t)blknum);  in nilfs_mdt_submit_block()
161 	bh->b_end_io = end_buffer_read_sync;  in nilfs_mdt_submit_block()
162 	get_bh(bh);  in nilfs_mdt_submit_block()
163 	submit_bh(mode, bh);  in nilfs_mdt_submit_block()
168 	get_bh(bh);  in nilfs_mdt_submit_block()
169 	*out_bh = bh;  in nilfs_mdt_submit_block()
172 	unlock_page(bh->b_page);  in nilfs_mdt_submit_block()
173 	page_cache_release(bh->b_page);  in nilfs_mdt_submit_block()
174 	brelse(bh);  in nilfs_mdt_submit_block()
182 	struct buffer_head *first_bh, *bh;  in nilfs_mdt_read_block()  local
197 			err = nilfs_mdt_submit_block(inode, blkoff, READA, &bh);  in nilfs_mdt_read_block()
199 				brelse(bh);  in nilfs_mdt_read_block()
381 		struct buffer_head *bh;  in nilfs_mdt_forget_block()  local
383 		bh = nilfs_page_get_nth_block(page, block - first_block);  in nilfs_mdt_forget_block()
384 		nilfs_forget_buffer(bh);  in nilfs_mdt_forget_block()
412 	struct buffer_head *bh;  in nilfs_mdt_mark_block_dirty()  local
415 	err = nilfs_mdt_read_block(inode, block, 0, &bh);  in nilfs_mdt_mark_block_dirty()
418 	mark_buffer_dirty(bh);  in nilfs_mdt_mark_block_dirty()
420 	brelse(bh);  in nilfs_mdt_mark_block_dirty()
554 int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh)  in nilfs_mdt_freeze_buffer()  argument
561 	page = grab_cache_page(&shadow->frozen_data, bh->b_page->index);  in nilfs_mdt_freeze_buffer()
568 	bh_frozen = nilfs_page_get_nth_block(page, bh_offset(bh) >> blkbits);  in nilfs_mdt_freeze_buffer()
571 		nilfs_copy_buffer(bh_frozen, bh);  in nilfs_mdt_freeze_buffer()
575 		set_buffer_nilfs_redirected(bh);  in nilfs_mdt_freeze_buffer()
586 nilfs_mdt_get_frozen_buffer(struct inode *inode, struct buffer_head *bh)  in nilfs_mdt_get_frozen_buffer()  argument
593 	page = find_lock_page(&shadow->frozen_data, bh->b_page->index);  in nilfs_mdt_get_frozen_buffer()
596 			n = bh_offset(bh) >> inode->i_blkbits;  in nilfs_mdt_get_frozen_buffer()
608 	struct buffer_head *bh;  in nilfs_release_frozen_buffers()  local
611 		bh = list_first_entry(head, struct buffer_head,  in nilfs_release_frozen_buffers()
613 		list_del_init(&bh->b_assoc_buffers);  in nilfs_release_frozen_buffers()
614 		brelse(bh); /* drop ref-count to make it releasable */  in nilfs_release_frozen_buffers()