Lines Matching refs:buffer

145 /* Pointer to an auxiliary buffer (1 page) */
146 static void *buffer;
1426             safe_copy_page(buffer, s_page);
1428             copy_page(dst, buffer);
1546     buffer = NULL;
1941  * get_highmem_buffer - Allocate a buffer for highmem pages.
1944  * buffer to copy them and/or load their data.
1948     buffer = get_image_page(GFP_ATOMIC, safe_needed);
1949     return buffer ? 0 : -ENOMEM;
2119  * @buf: Memory buffer to store the PFNs in.
2158     if (!buffer) {
2159         /* This makes the buffer be freed by swsusp_free() */
2160         buffer = get_image_page(GFP_ATOMIC, PG_ANY);
2161         if (!buffer) {
2168         error = init_header((struct swsusp_info *)buffer);
2172         handle->buffer = buffer;
2176         clear_page(buffer);
2177         pack_pfns(buffer, &orig_bm);
2184              * Highmem pages are copied to the buffer,
2191             copy_page(buffer, kaddr);
2193             handle->buffer = buffer;
2195             handle->buffer = page_address(page);
2397  * get_highmem_page_buffer - Prepare a buffer to store a highmem image page.
2399  * For a given highmem image page get a buffer that suspend_write_next() should
2403  * the page is to be made in the highmem, @buffer is returned.  Otherwise,
2407  * If @buffer is returned, the caller of suspend_write_next() will write
2408  * the page's contents to @buffer, so they will have to be copied to the
2411  * @buffer is returned, @last_highmem_page is set to the page to which
2412  * the data will have to be copied from @buffer.
2425         return buffer;
2441         kaddr = buffer;
2460  * Copy the contents of a highmem image from @buffer, where the caller of
2470         copy_page(dst, buffer);
2487     if (buffer) {
2488         free_image_page(buffer, PG_UNSAFE_CLEAR);
2542     /* If there is no highmem, the buffer will not be necessary */
2543     free_image_page(buffer, PG_UNSAFE_CLEAR);
2544     buffer = NULL;
2682         if (!buffer) {
2683             /* This makes the buffer be freed by swsusp_free() */
2684             buffer = get_image_page(GFP_ATOMIC, PG_ANY);
2687         if (!buffer) {
2691         handle->buffer = buffer;
2693         error = load_header(buffer);
2707         error = unpack_orig_pfns(buffer, &copy_bm);
2721             handle->buffer = get_buffer(&orig_bm, &ca);
2723             if (IS_ERR(handle->buffer)) {
2724                 return PTR_ERR(handle->buffer);
2729         hibernate_restore_protect_page(handle->buffer);
2730         handle->buffer = get_buffer(&orig_bm, &ca);
2731         if (IS_ERR(handle->buffer)) {
2732             return PTR_ERR(handle->buffer);
2734         if (handle->buffer != buffer) {
2753     hibernate_restore_protect_page(handle->buffer);