1868 void page_zero_new_buffers(struct page *page, unsigned from, unsigned to)  in page_zero_new_buffers()  argument
1883 			if (block_end > from && block_start < to) {  in page_zero_new_buffers()
1887 					start = max(from, block_start);  in page_zero_new_buffers()
1908 	unsigned from = pos & (PAGE_CACHE_SIZE - 1);  in __block_write_begin()  local
1909 	unsigned to = from + len;  in __block_write_begin()
1918 	BUG_ON(from > PAGE_CACHE_SIZE);  in __block_write_begin()
1920 	BUG_ON(from > to);  in __block_write_begin()
1931 		if (block_end <= from || block_start >= to) {  in __block_write_begin()
1954 				if (block_end > to || block_start < from)  in __block_write_begin()
1957 						block_start, from);  in __block_write_begin()
1968 		     (block_start < from || block_end > to)) {  in __block_write_begin()
1982 		page_zero_new_buffers(page, from, to);  in __block_write_begin()
1988 		unsigned from, unsigned to)  in __block_commit_write()  argument
2001 		if (block_end <= from || block_start >= to) {  in __block_commit_write()
2137 int block_is_partially_uptodate(struct page *page, unsigned long from,  in block_is_partially_uptodate()  argument
2150 	to = min_t(unsigned, PAGE_CACHE_SIZE - from, count);  in block_is_partially_uptodate()
2151 	to = from + to;  in block_is_partially_uptodate()
2152 	if (from < blocksize && to > PAGE_CACHE_SIZE - blocksize)  in block_is_partially_uptodate()
2159 		if (block_end > from && block_start < to) {  in block_is_partially_uptodate()
2399 int block_commit_write(struct page *page, unsigned from, unsigned to)  in block_commit_write()  argument
2402 	__block_commit_write(inode,page,from,to);  in block_commit_write()
2514 	unsigned from, to;  in nobh_write_begin()  local
2523 	from = pos & (PAGE_CACHE_SIZE - 1);  in nobh_write_begin()
2524 	to = from + len;  in nobh_write_begin()
2587 			zero_user_segments(page, block_start, from,  in nobh_write_begin()
2593 		if (block_start < from || block_end > to) {  in nobh_write_begin()
2633 	page_zero_new_buffers(page, from, to);  in nobh_write_begin()
2732 			loff_t from, get_block_t *get_block)  in nobh_truncate_page()  argument
2734 	pgoff_t index = from >> PAGE_CACHE_SHIFT;  in nobh_truncate_page()
2735 	unsigned offset = from & (PAGE_CACHE_SIZE-1);  in nobh_truncate_page()
2763 		return block_truncate_page(mapping, from, get_block);  in nobh_truncate_page()
2810 			loff_t from, get_block_t *get_block)  in block_truncate_page()  argument
2812 	pgoff_t index = from >> PAGE_CACHE_SHIFT;  in block_truncate_page()
2813 	unsigned offset = from & (PAGE_CACHE_SIZE-1);  in block_truncate_page()