Lines Matching refs:handle
221 static int mark_swapfiles(struct swap_map_handle *handle, unsigned int flags) in mark_swapfiles() argument
230 swsusp_header->image = handle->first_sector; in mark_swapfiles()
233 swsusp_header->crc32 = handle->crc32; in mark_swapfiles()
311 static void release_swap_writer(struct swap_map_handle *handle) in release_swap_writer() argument
313 if (handle->cur) in release_swap_writer()
314 free_page((unsigned long)handle->cur); in release_swap_writer()
315 handle->cur = NULL; in release_swap_writer()
318 static int get_swap_writer(struct swap_map_handle *handle) in get_swap_writer() argument
329 handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_KERNEL); in get_swap_writer()
330 if (!handle->cur) { in get_swap_writer()
334 handle->cur_swap = alloc_swapdev_block(root_swap); in get_swap_writer()
335 if (!handle->cur_swap) { in get_swap_writer()
339 handle->k = 0; in get_swap_writer()
340 handle->reqd_free_pages = reqd_free_pages(); in get_swap_writer()
341 handle->first_sector = handle->cur_swap; in get_swap_writer()
344 release_swap_writer(handle); in get_swap_writer()
350 static int swap_write_page(struct swap_map_handle *handle, void *buf, in swap_write_page() argument
356 if (!handle->cur) in swap_write_page()
362 handle->cur->entries[handle->k++] = offset; in swap_write_page()
363 if (handle->k >= MAP_PAGE_ENTRIES) { in swap_write_page()
367 handle->cur->next_swap = offset; in swap_write_page()
368 error = write_page(handle->cur, handle->cur_swap, bio_chain); in swap_write_page()
371 clear_page(handle->cur); in swap_write_page()
372 handle->cur_swap = offset; in swap_write_page()
373 handle->k = 0; in swap_write_page()
375 if (bio_chain && low_free_pages() <= handle->reqd_free_pages) { in swap_write_page()
383 handle->reqd_free_pages = reqd_free_pages(); in swap_write_page()
390 static int flush_swap_writer(struct swap_map_handle *handle) in flush_swap_writer() argument
392 if (handle->cur && handle->cur_swap) in flush_swap_writer()
393 return write_page(handle->cur, handle->cur_swap, NULL); in flush_swap_writer()
398 static int swap_writer_finish(struct swap_map_handle *handle, in swap_writer_finish() argument
402 flush_swap_writer(handle); in swap_writer_finish()
404 error = mark_swapfiles(handle, flags); in swap_writer_finish()
410 release_swap_writer(handle); in swap_writer_finish()
440 static int save_image(struct swap_map_handle *handle, in save_image() argument
464 ret = swap_write_page(handle, data_of(*snapshot), &bio); in save_image()
575 static int save_image_lzo(struct swap_map_handle *handle, in save_image_lzo() argument
648 handle->crc32 = 0; in save_image_lzo()
649 crc->crc32 = &handle->crc32; in save_image_lzo()
667 handle->reqd_free_pages = reqd_free_pages(); in save_image_lzo()
751 ret = swap_write_page(handle, page, &bio); in save_image_lzo()
816 struct swap_map_handle handle; in swsusp_write() local
823 error = get_swap_writer(&handle); in swsusp_write()
844 error = swap_write_page(&handle, header, NULL); in swsusp_write()
847 save_image(&handle, &snapshot, pages - 1) : in swsusp_write()
848 save_image_lzo(&handle, &snapshot, pages - 1); in swsusp_write()
851 error = swap_writer_finish(&handle, flags, error); in swsusp_write()
860 static void release_swap_reader(struct swap_map_handle *handle) in release_swap_reader() argument
864 while (handle->maps) { in release_swap_reader()
865 if (handle->maps->map) in release_swap_reader()
866 free_page((unsigned long)handle->maps->map); in release_swap_reader()
867 tmp = handle->maps; in release_swap_reader()
868 handle->maps = handle->maps->next; in release_swap_reader()
871 handle->cur = NULL; in release_swap_reader()
874 static int get_swap_reader(struct swap_map_handle *handle, in get_swap_reader() argument
886 handle->cur = NULL; in get_swap_reader()
887 last = handle->maps = NULL; in get_swap_reader()
890 tmp = kmalloc(sizeof(*handle->maps), GFP_KERNEL); in get_swap_reader()
892 release_swap_reader(handle); in get_swap_reader()
896 if (!handle->maps) in get_swap_reader()
897 handle->maps = tmp; in get_swap_reader()
905 release_swap_reader(handle); in get_swap_reader()
911 release_swap_reader(handle); in get_swap_reader()
916 handle->k = 0; in get_swap_reader()
917 handle->cur = handle->maps->map; in get_swap_reader()
921 static int swap_read_page(struct swap_map_handle *handle, void *buf, in swap_read_page() argument
928 if (!handle->cur) in swap_read_page()
930 offset = handle->cur->entries[handle->k]; in swap_read_page()
936 if (++handle->k >= MAP_PAGE_ENTRIES) { in swap_read_page()
937 handle->k = 0; in swap_read_page()
938 free_page((unsigned long)handle->maps->map); in swap_read_page()
939 tmp = handle->maps; in swap_read_page()
940 handle->maps = handle->maps->next; in swap_read_page()
942 if (!handle->maps) in swap_read_page()
943 release_swap_reader(handle); in swap_read_page()
945 handle->cur = handle->maps->map; in swap_read_page()
950 static int swap_reader_finish(struct swap_map_handle *handle) in swap_reader_finish() argument
952 release_swap_reader(handle); in swap_reader_finish()
963 static int load_image(struct swap_map_handle *handle, in load_image() argument
987 ret = swap_read_page(handle, data_of(*snapshot), &bio); in load_image()
1063 static int load_image_lzo(struct swap_map_handle *handle, in load_image_lzo() argument
1139 handle->crc32 = 0; in load_image_lzo()
1140 crc->crc32 = &handle->crc32; in load_image_lzo()
1202 ret = swap_read_page(handle, page[ring], &bio); in load_image_lzo()
1208 if (handle->cur && in load_image_lzo()
1209 handle->cur->entries[handle->k]) { in load_image_lzo()
1355 if(handle->crc32 != swsusp_header->crc32) { in load_image_lzo()
1392 struct swap_map_handle handle; in swsusp_read() local
1401 error = get_swap_reader(&handle, flags_p); in swsusp_read()
1405 error = swap_read_page(&handle, header, NULL); in swsusp_read()
1408 load_image(&handle, &snapshot, header->pages - 1) : in swsusp_read()
1409 load_image_lzo(&handle, &snapshot, header->pages - 1); in swsusp_read()
1411 swap_reader_finish(&handle); in swsusp_read()