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-rw-r--r--config/kernel-totalram-pages-func.m418
-rw-r--r--config/kernel.m41
2 files changed, 19 insertions, 0 deletions
diff --git a/config/kernel-totalram-pages-func.m4 b/config/kernel-totalram-pages-func.m4
new file mode 100644
index 000000000..a6eac6454
--- /dev/null
+++ b/config/kernel-totalram-pages-func.m4
@@ -0,0 +1,18 @@
+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)
+ ])
+])
diff --git a/config/kernel.m4 b/config/kernel.m4
index ea04d85b6..e4d0e3393 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -163,6 +163,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_USERNS_CAPABILITIES
ZFS_AC_KERNEL_IN_COMPAT_SYSCALL
ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64
+ ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC
AS_IF([test "$LINUX_OBJ" != "$LINUX"], [
KERNEL_MAKE="$KERNEL_MAKE O=$LINUX_OBJ"