| dnl # |
| dnl # Linux 5.16 no longer allows directly calling wait_on_page_bit, and |
| dnl # instead requires you to call folio-specific functions. In this case, |
| dnl # wait_on_page_bit(pg, PG_writeback) becomes |
| dnl # folio_wait_bit(pg, PG_writeback) |
| dnl # |
| AC_DEFUN([ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT], [ |
| ZFS_LINUX_TEST_SRC([pagemap_has_folio_wait_bit], [ |
| #include <linux/pagemap.h> |
| ],[ |
| static struct folio *f = NULL; |
| |
| folio_wait_bit(f, PG_writeback); |
| ]) |
| ]) |
| |
| AC_DEFUN([ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT], [ |
| AC_MSG_CHECKING([whether folio_wait_bit() exists]) |
| ZFS_LINUX_TEST_RESULT([pagemap_has_folio_wait_bit], [ |
| AC_MSG_RESULT([yes]) |
| AC_DEFINE(HAVE_PAGEMAP_FOLIO_WAIT_BIT, 1, |
| [folio_wait_bit() exists]) |
| ],[ |
| AC_MSG_RESULT([no]) |
| ]) |
| ]) |
