X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fautoconf%2Flustre-core.m4;h=a4b33f29b9e97c5ccfd333a7370dee99c7fabf16;hb=337aafa282d0f1127eef8b7ee4f865171f48bc12;hp=8ee15f18869539e8b7f6b1664da7b22489d0c8c2;hpb=34acfbc2bfe502d18c12ba35771bde7c4a0f7906;p=fs%2Flustre-release.git

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 8ee15f1..a4b33f2 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2309,6 +2309,28 @@ in_compat_syscall, [
 ]) # LC_HAVE_IN_COMPAT_SYSCALL
 
 #
+# LC_DIRECTIO_2ARGS
+#
+# Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
+# direct-io: eliminate the offset argument to ->direct_IO
+#
+AC_DEFUN([LC_DIRECTIO_2ARGS], [
+LB_CHECK_COMPILE([if '->direct_IO()' taken 2 arguments],
+direct_io_2args, [
+	#include <linux/fs.h>
+],[
+	struct address_space_operations ops;
+	struct iov_iter *iter = NULL;
+	struct kiocb *iocb = NULL;
+	int rc;
+	rc = ops.direct_IO(iocb, iter);
+],[
+	AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1,
+		[direct_IO need 2 arguments])
+])
+]) # LC_DIRECTIO_2ARGS
+
+#
 # LC_HAVE_POSIX_ACL_VALID_USER_NS
 #
 # 4.8 posix_acl_valid takes struct user_namespace
@@ -2534,6 +2556,9 @@ AC_DEFUN([LC_PROG_LINUX], [
 	# 4.6
 	LC_HAVE_IN_COMPAT_SYSCALL
 
+	# 4.7
+	LC_DIRECTIO_2ARGS
+
 	# 4.8
 	LC_HAVE_POSIX_ACL_VALID_USER_NS
 	LC_D_COMPARE_4ARGS