48 	struct buffer_head *bh;  in __nilfs_get_page_block()  local
54 	bh = nilfs_page_get_nth_block(page, block - first_block);  in __nilfs_get_page_block()
56 	touch_buffer(bh);  in __nilfs_get_page_block()
57 	wait_on_buffer(bh);  in __nilfs_get_page_block()
58 	return bh;  in __nilfs_get_page_block()
69 	struct buffer_head *bh;  in nilfs_grab_buffer()  local
75 	bh = __nilfs_get_page_block(page, blkoff, index, blkbits, b_state);  in nilfs_grab_buffer()
76 	if (unlikely(!bh)) {  in nilfs_grab_buffer()
81 	return bh;  in nilfs_grab_buffer()
89 void nilfs_forget_buffer(struct buffer_head *bh)  in nilfs_forget_buffer()  argument
91 	struct page *page = bh->b_page;  in nilfs_forget_buffer()
97 	lock_buffer(bh);  in nilfs_forget_buffer()
98 	set_mask_bits(&bh->b_state, clear_bits, 0);  in nilfs_forget_buffer()
102 	bh->b_blocknr = -1;  in nilfs_forget_buffer()
105 	unlock_buffer(bh);  in nilfs_forget_buffer()
106 	brelse(bh);  in nilfs_forget_buffer()
119 	struct buffer_head *bh;  in nilfs_copy_buffer()  local
131 	bh = dbh;  in nilfs_copy_buffer()
133 	while ((bh = bh->b_this_page) != dbh) {  in nilfs_copy_buffer()
134 		lock_buffer(bh);  in nilfs_copy_buffer()
135 		bits &= bh->b_state;  in nilfs_copy_buffer()
136 		unlock_buffer(bh);  in nilfs_copy_buffer()
157 	struct buffer_head *bh, *head;  in nilfs_page_buffers_clean()  local
159 	bh = head = page_buffers(page);  in nilfs_page_buffers_clean()
161 		if (buffer_dirty(bh))  in nilfs_page_buffers_clean()
163 		bh = bh->b_this_page;  in nilfs_page_buffers_clean()
164 	} while (bh != head);  in nilfs_page_buffers_clean()
187 		struct buffer_head *bh, *head;  in nilfs_page_bug()  local
190 		bh = head = page_buffers(page);  in nilfs_page_bug()
194 			       i++, bh, atomic_read(&bh->b_count),  in nilfs_page_bug()
195 			       (unsigned long long)bh->b_blocknr, bh->b_state);  in nilfs_page_bug()
196 			bh = bh->b_this_page;  in nilfs_page_bug()
197 		} while (bh != head);  in nilfs_page_bug()
421 		struct buffer_head *bh, *head;  in nilfs_clear_dirty_page()  local
427 		bh = head = page_buffers(page);  in nilfs_clear_dirty_page()
429 			lock_buffer(bh);  in nilfs_clear_dirty_page()
433 					(u64)bh->b_blocknr, bh->b_size);  in nilfs_clear_dirty_page()
435 			set_mask_bits(&bh->b_state, clear_bits, 0);  in nilfs_clear_dirty_page()
436 			unlock_buffer(bh);  in nilfs_clear_dirty_page()
437 		} while (bh = bh->b_this_page, bh != head);  in nilfs_clear_dirty_page()
447 	struct buffer_head *bh, *head;  in nilfs_page_count_clean_buffers()  local
450 	for (bh = head = page_buffers(page), block_start = 0;  in nilfs_page_count_clean_buffers()
451 	     bh != head || !block_start;  in nilfs_page_count_clean_buffers()
452 	     block_start = block_end, bh = bh->b_this_page) {  in nilfs_page_count_clean_buffers()
453 		block_end = block_start + bh->b_size;  in nilfs_page_count_clean_buffers()
454 		if (block_end > from && block_start < to && !buffer_dirty(bh))  in nilfs_page_count_clean_buffers()
547 			struct buffer_head *bh, *head;  in nilfs_find_uncommitted_extent()  local
549 			bh = head = page_buffers(page);  in nilfs_find_uncommitted_extent()
553 				if (buffer_delay(bh)) {  in nilfs_find_uncommitted_extent()
560 			} while (++b, bh = bh->b_this_page, bh != head);  in nilfs_find_uncommitted_extent()