mirror_zfs/config/kernel-totalhigh_pages.m4
Rob Norris 85391ee931 build: add SPDX license tags to build system files
Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #18077
2026-01-08 15:08:03 -08:00

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dnl # SPDX-License-Identifier: CDDL-1.0
dnl #
dnl # 5.0 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_TOTALHIGH_PAGES], [
ZFS_LINUX_TEST_SRC([totalhigh_pages], [
#include <linux/highmem.h>
],[
unsigned long pages __attribute__ ((unused));
pages = totalhigh_pages();
])
])
AC_DEFUN([ZFS_AC_KERNEL_TOTALHIGH_PAGES], [
AC_MSG_CHECKING([whether totalhigh_pages() exists])
ZFS_LINUX_TEST_RESULT([totalhigh_pages], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TOTALHIGH_PAGES, 1, [totalhigh_pages() exists])
],[
AC_MSG_RESULT(no)
])
])