LU-9003 mdc: support posix_acl_valid with user namespace

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

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index c8a6efb..818a4c9 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2274,6 +2274,24 @@ in_compat_syscall, [
 ]) # LC_HAVE_IN_COMPAT_SYSCALL
 
 #
+# LC_HAVE_POSIX_ACL_VALID_USER_NS
+#
+# 4.8 posix_acl_valid takes struct user_namespace
+#
+AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
+LB_CHECK_COMPILE([if 'posix_acl_valid' takes 'struct user_namespace'],
+posix_acl_valid, [
+       #include <linux/fs.h>
+       #include <linux/posix_acl.h>
+],[
+       posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
+],[
+       AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
+               [posix_acl_valid takes struct user_namespace])
+])
+]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -2461,6 +2479,9 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 4.6
        LC_HAVE_IN_COMPAT_SYSCALL
 
+       # 4.8
+       LC_HAVE_POSIX_ACL_VALID_USER_NS
+
        #
        AS_IF([test "x$enable_server" != xno], [
                LC_FUNC_DEV_SET_RDONLY