34 	struct buffer_head *bh;  in __nilfs_get_page_block()  local
40 	bh = nilfs_page_get_nth_block(page, block - first_block);  in __nilfs_get_page_block()
42 	wait_on_buffer(bh);  in __nilfs_get_page_block()
43 	return bh;  in __nilfs_get_page_block()
54 	struct buffer_head *bh;  in nilfs_grab_buffer()  local
60 	bh = __nilfs_get_page_block(page, blkoff, index, blkbits, b_state);  in nilfs_grab_buffer()
61 	if (unlikely(!bh)) {  in nilfs_grab_buffer()
66 	bh->b_bdev = inode->i_sb->s_bdev;  in nilfs_grab_buffer()
67 	return bh;  in nilfs_grab_buffer()
74 void nilfs_forget_buffer(struct buffer_head *bh)  in nilfs_forget_buffer()  argument
76 	struct page *page = bh->b_page;  in nilfs_forget_buffer()
83 	lock_buffer(bh);  in nilfs_forget_buffer()
84 	set_mask_bits(&bh->b_state, clear_bits, 0);  in nilfs_forget_buffer()
88 	bh->b_blocknr = -1;  in nilfs_forget_buffer()
91 	unlock_buffer(bh);  in nilfs_forget_buffer()
92 	brelse(bh);  in nilfs_forget_buffer()
105 	struct buffer_head *bh;  in nilfs_copy_buffer()  local
117 	bh = dbh;  in nilfs_copy_buffer()
119 	while ((bh = bh->b_this_page) != dbh) {  in nilfs_copy_buffer()
120 		lock_buffer(bh);  in nilfs_copy_buffer()
121 		bits &= bh->b_state;  in nilfs_copy_buffer()
122 		unlock_buffer(bh);  in nilfs_copy_buffer()
143 	struct buffer_head *bh, *head;  in nilfs_page_buffers_clean()  local
145 	bh = head = page_buffers(page);  in nilfs_page_buffers_clean()
147 		if (buffer_dirty(bh))  in nilfs_page_buffers_clean()
149 		bh = bh->b_this_page;  in nilfs_page_buffers_clean()
150 	} while (bh != head);  in nilfs_page_buffers_clean()
173 		struct buffer_head *bh, *head;  in nilfs_page_bug()  local
176 		bh = head = page_buffers(page);  in nilfs_page_bug()
180 			       i++, bh, atomic_read(&bh->b_count),  in nilfs_page_bug()
181 			       (unsigned long long)bh->b_blocknr, bh->b_state);  in nilfs_page_bug()
182 			bh = bh->b_this_page;  in nilfs_page_bug()
183 		} while (bh != head);  in nilfs_page_bug()
411 		struct buffer_head *bh, *head;  in nilfs_clear_dirty_page()  local
418 		bh = head = page_buffers(page);  in nilfs_clear_dirty_page()
420 			lock_buffer(bh);  in nilfs_clear_dirty_page()
424 					   (u64)bh->b_blocknr, bh->b_size);  in nilfs_clear_dirty_page()
426 			set_mask_bits(&bh->b_state, clear_bits, 0);  in nilfs_clear_dirty_page()
427 			unlock_buffer(bh);  in nilfs_clear_dirty_page()
428 		} while (bh = bh->b_this_page, bh != head);  in nilfs_clear_dirty_page()
438 	struct buffer_head *bh, *head;  in nilfs_page_count_clean_buffers()  local
441 	for (bh = head = page_buffers(page), block_start = 0;  in nilfs_page_count_clean_buffers()
442 	     bh != head || !block_start;  in nilfs_page_count_clean_buffers()
443 	     block_start = block_end, bh = bh->b_this_page) {  in nilfs_page_count_clean_buffers()
444 		block_end = block_start + bh->b_size;  in nilfs_page_count_clean_buffers()
445 		if (block_end > from && block_start < to && !buffer_dirty(bh))  in nilfs_page_count_clean_buffers()
520 			struct buffer_head *bh, *head;  in nilfs_find_uncommitted_extent()  local
524 			bh = head = folio_buffers(folio);  in nilfs_find_uncommitted_extent()
528 				if (buffer_delay(bh)) {  in nilfs_find_uncommitted_extent()
535 			} while (++b, bh = bh->b_this_page, bh != head);  in nilfs_find_uncommitted_extent()