freebsd-dev/config/kernel-totalram-pages-func.m4
Tony Hutter 031cea17a3 Linux 5.0 compat: Use totalram_pages()
totalram_pages() was converted to an atomic variable in 5.0:

https://patchwork.kernel.org/patch/10652795/

Its value should now be read though the totalram_pages() helper
function.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #8263
2019-01-28 10:11:14 -08:00

19 lines
501 B
Plaintext

dnl #
dnl # Linux 5.0: totalram_pages is no longer a global variable, and must be
dnl # read via the totalram_pages() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC], [
AC_MSG_CHECKING([whether totalram_pages() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/mm.h>
],[
unsigned long pages __attribute__ ((unused));
pages = totalram_pages();
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TOTALRAM_PAGES_FUNC, 1, [kernel has totalram_pages()])
],[
AC_MSG_RESULT(no)
])
])