1dnl # 2dnl # Linux 5.16 no longer allows directly calling wait_on_page_bit, and 3dnl # instead requires you to call folio-specific functions. In this case, 4dnl # wait_on_page_bit(pg, PG_writeback) becomes 5dnl # folio_wait_bit(pg, PG_writeback) 6dnl # 7AC_DEFUN([ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT], [ 8 ZFS_LINUX_TEST_SRC([pagemap_has_folio_wait_bit], [ 9 #include <linux/pagemap.h> 10 ],[ 11 static struct folio *f = NULL; 12 13 folio_wait_bit(f, PG_writeback); 14 ]) 15]) 16 17AC_DEFUN([ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT], [ 18 AC_MSG_CHECKING([whether folio_wait_bit() exists]) 19 ZFS_LINUX_TEST_RESULT([pagemap_has_folio_wait_bit], [ 20 AC_MSG_RESULT([yes]) 21 AC_DEFINE(HAVE_PAGEMAP_FOLIO_WAIT_BIT, 1, 22 [folio_wait_bit() exists]) 23 ],[ 24 AC_MSG_RESULT([no]) 25 ]) 26]) 27