625 		pgoff_t offset = old->index;  in replace_page_cache_page()  local
630 		new->index = offset;  in replace_page_cache_page()
658 				      pgoff_t offset, gfp_t gfp_mask,  in __add_to_page_cache_locked()  argument
684 	page->index = offset;  in __add_to_page_cache_locked()
721 		pgoff_t offset, gfp_t gfp_mask)  in add_to_page_cache_locked()  argument
723 	return __add_to_page_cache_locked(page, mapping, offset,  in add_to_page_cache_locked()
729 				pgoff_t offset, gfp_t gfp_mask)  in add_to_page_cache_lru()  argument
735 	ret = __add_to_page_cache_locked(page, mapping, offset,  in add_to_page_cache_lru()
1087 struct page *find_get_entry(struct address_space *mapping, pgoff_t offset)  in find_get_entry()  argument
1095 	pagep = radix_tree_lookup_slot(&mapping->page_tree, offset);  in find_get_entry()
1154 struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset)  in find_lock_entry()  argument
1159 	page = find_get_entry(mapping, offset);  in find_lock_entry()
1168 		VM_BUG_ON_PAGE(page_to_pgoff(page) != offset, page);  in find_lock_entry()
1197 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,  in pagecache_get_page()  argument
1203 	page = find_get_entry(mapping, offset);  in pagecache_get_page()
1225 		VM_BUG_ON_PAGE(page->index != offset, page);  in pagecache_get_page()
1250 		err = add_to_page_cache_lru(page, mapping, offset, gfp_mask);  in pagecache_get_page()
1686 	unsigned long offset;      /* offset into pagecache page */  in do_generic_file_read()  local
1698 	offset = *ppos & ~PAGE_MASK;  in do_generic_file_read()
1751 							offset, iter->count))  in do_generic_file_read()
1776 			if (nr <= offset) {  in do_generic_file_read()
1781 		nr = nr - offset;  in do_generic_file_read()
1794 		if (prev_index != index || offset != prev_offset)  in do_generic_file_read()
1803 		ret = copy_page_to_iter(page, offset, nr, iter);  in do_generic_file_read()
1804 		offset += ret;  in do_generic_file_read()
1805 		index += offset >> PAGE_SHIFT;  in do_generic_file_read()
1806 		offset &= ~PAGE_MASK;  in do_generic_file_read()
1807 		prev_offset = offset;  in do_generic_file_read()
1914 	*ppos = ((loff_t)index << PAGE_SHIFT) + offset;  in do_generic_file_read()
1987 static int page_cache_read(struct file *file, pgoff_t offset, gfp_t gfp_mask)  in page_cache_read()  argument
1998 		ret = add_to_page_cache_lru(page, mapping, offset, gfp_mask);  in page_cache_read()
2020 				   pgoff_t offset)  in do_sync_mmap_readahead()  argument
2031 		page_cache_sync_readahead(mapping, ra, file, offset,  in do_sync_mmap_readahead()
2050 	ra->start = max_t(long, 0, offset - ra->ra_pages / 2);  in do_sync_mmap_readahead()
2064 				    pgoff_t offset)  in do_async_mmap_readahead()  argument
2075 					   page, offset, ra->ra_pages);  in do_async_mmap_readahead()
2109 	pgoff_t offset = vmf->pgoff;  in filemap_fault()  local
2115 	if (offset >= size >> PAGE_SHIFT)  in filemap_fault()
2121 	page = find_get_page(mapping, offset);  in filemap_fault()
2127 		do_async_mmap_readahead(vma, ra, file, page, offset);  in filemap_fault()
2130 		do_sync_mmap_readahead(vma, ra, file, offset);  in filemap_fault()
2135 		page = find_get_page(mapping, offset);  in filemap_fault()
2151 	VM_BUG_ON_PAGE(page->index != offset, page);  in filemap_fault()
2165 	if (unlikely(offset >= size >> PAGE_SHIFT)) {  in filemap_fault()
2179 	error = page_cache_read(file, offset, vmf->gfp_mask);  in filemap_fault()
2710 		unsigned long offset;	/* Offset into pagecache page */  in generic_perform_write()  local
2715 		offset = (pos & (PAGE_SIZE - 1));  in generic_perform_write()
2716 		bytes = min_t(unsigned long, PAGE_SIZE - offset,  in generic_perform_write()
2748 		copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes);  in generic_perform_write()
2769 			bytes = min_t(unsigned long, PAGE_SIZE - offset,  in generic_perform_write()