zfs-builds-mm/zfs-0.8.5/config/kernel-kmem-vmalloc.m4

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dnl #
dnl # 5.8 API,
dnl # __vmalloc PAGE_KERNEL removal
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL], [
ZFS_LINUX_TEST_SRC([__vmalloc], [
#include <linux/mm.h>
#include <linux/vmalloc.h>
],[
void *p __attribute__ ((unused));
p = __vmalloc(0, GFP_KERNEL, PAGE_KERNEL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL], [
AC_MSG_CHECKING([whether __vmalloc(ptr, flags, pageflags) is available])
ZFS_LINUX_TEST_RESULT([__vmalloc], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_VMALLOC_PAGE_KERNEL, 1, [__vmalloc page flags exists])
],[
AC_MSG_RESULT(no)
])
])