1681ce946SMartin Matuskadnl # 2681ce946SMartin Matuskadnl # Linux 5.16 no longer allows directly calling wait_on_page_bit, and 3681ce946SMartin Matuskadnl # instead requires you to call folio-specific functions. In this case, 4681ce946SMartin Matuskadnl # wait_on_page_bit(pg, PG_writeback) becomes 5681ce946SMartin Matuskadnl # folio_wait_bit(pg, PG_writeback) 6681ce946SMartin Matuskadnl # 7681ce946SMartin MatuskaAC_DEFUN([ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT], [ 8681ce946SMartin Matuska ZFS_LINUX_TEST_SRC([pagemap_has_folio_wait_bit], [ 9681ce946SMartin Matuska #include <linux/pagemap.h> 10681ce946SMartin Matuska ],[ 11681ce946SMartin Matuska static struct folio *f = NULL; 12681ce946SMartin Matuska 13681ce946SMartin Matuska folio_wait_bit(f, PG_writeback); 14681ce946SMartin Matuska ]) 15681ce946SMartin Matuska]) 16681ce946SMartin Matuska 17681ce946SMartin MatuskaAC_DEFUN([ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT], [ 18*e3aa18adSMartin Matuska AC_MSG_CHECKING([whether folio_wait_bit() exists]) 19681ce946SMartin Matuska ZFS_LINUX_TEST_RESULT([pagemap_has_folio_wait_bit], [ 20681ce946SMartin Matuska AC_MSG_RESULT([yes]) 21681ce946SMartin Matuska AC_DEFINE(HAVE_PAGEMAP_FOLIO_WAIT_BIT, 1, 22681ce946SMartin Matuska [folio_wait_bit() exists]) 23681ce946SMartin Matuska ],[ 24681ce946SMartin Matuska AC_MSG_RESULT([no]) 25681ce946SMartin Matuska ]) 26681ce946SMartin Matuska]) 27