__swap_writepage 391 include/linux/swap.h extern int __swap_writepage(struct page *page, struct writeback_control *wbc, __swap_writepage 258 mm/page_io.c ret = __swap_writepage(page, wbc, end_swap_bio_write); __swap_writepage 907 mm/zswap.c __swap_writepage(page, &wbc, end_swap_bio_write);