LU-13731 autoconf: check if VM_FAULT_RETRY is defined

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 9d96ed0..26d88d6 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1990,6 +1990,27 @@ vm_fault_t, [
 ]) # LC_VM_FAULT_T
 
 #
+# LC_VM_FAULT_RETRY
+#
+# kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
+# mm: VM_FAULT_RETRY is defined in enum vm_fault_reason
+#
+AC_DEFUN([LC_VM_FAULT_RETRY], [
+LB_CHECK_COMPILE([if VM_FAULT_RETRY is defined],
+VM_FAULT_RETRY, [
+       #include <linux/mm.h>
+],[
+       #ifndef VM_FAULT_RETRY
+               vm_fault_t x;
+               x = VM_FAULT_RETRY;
+       #endif
+],[
+       AC_DEFINE(HAVE_VM_FAULT_RETRY, 1,
+               [if VM_FAULT_RETRY is defined])
+])
+]) # LC_VM_FAULT_RETRY
+
+#
 # LC_INODE_TIMESPEC64
 #
 # kernel 4.17-rc7 commit 8efd6894ff089adeeac7cb9f32125b85d963d1bc
@@ -2395,6 +2416,7 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        # 4.17
        LC_VM_FAULT_T
+       LC_VM_FAULT_RETRY
        LC_I_PAGES
 
        # 4.18