mirror_zfs/config/kernel-totalhigh_pages.m4
Tomohiro Kusumi de3e0b914b Linux 5.0 compat: Use totalhigh_pages()
Linux kernel commit ca79b0c211af63fa3276f0e3fd7dd9ada2439839
"mm: convert totalram_pages and totalhigh_pages variables to atomic"

replaced `totalhigh_pages` with an inline function `totalhigh_pages()`.
This broke compilation on IA32, etc, as ZoL uses `totalhigh_pages`
on archs with highmem. Confirmed on Fedora 30 (5.0.9-301.fc30.i686).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Closes #8677
Closes #8701
2019-05-04 16:40:48 -07:00

20 lines
481 B
Plaintext

dnl #
dnl # 5.0 API change
dnl #
dnl # ca79b0c211af mm: convert totalram_pages and totalhigh_pages variables to atomic
dnl #
AC_DEFUN([ZFS_AC_KERNEL_TOTALHIGH_PAGES], [
AC_MSG_CHECKING([whether totalhigh_pages() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/highmem.h>
],[
unsigned long pages __attribute__ ((unused));
pages = totalhigh_pages();
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TOTALHIGH_PAGES, 1, [totalhigh_pages() exists])
],[
AC_MSG_RESULT(no)
])
])