config/kernel-kmap-local-page.m4

   1 dnl #
   2 dnl # 5.11 API change
   3 dnl # kmap_atomic() was deprecated in favor of kmap_local_page()
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_SRC_KMAP_LOCAL_PAGE], [
   6         ZFS_LINUX_TEST_SRC([kmap_local_page], [
   7                 #include <linux/highmem.h>
   8         ],[
   9                 struct page page;
  10                 kmap_local_page(&page);
  11         ])
  12 ])
  13
  14 AC_DEFUN([ZFS_AC_KERNEL_KMAP_LOCAL_PAGE], [
  15         AC_MSG_CHECKING([whether kmap_local_page exists])
  16         ZFS_LINUX_TEST_RESULT([kmap_local_page], [
  17                 AC_MSG_RESULT(yes)
  18                 AC_DEFINE(HAVE_KMAP_LOCAL_PAGE, 1,
  19                     [kernel has kmap_local_page])
  20         ],[
  21                 AC_MSG_RESULT(no)
  22         ])
  23 ])