LU-12355 llite: MS_* flags and SB_* flags split

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

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index b72b5b8..2242af4 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -3064,6 +3064,28 @@ bi_status, [
 ]) # LC_BI_STATUS
 
 #
+# LC_UAPI_LINUX_MOUNT_H
+#
+# kernel 4.20 commit e262e32d6bde0f77fb0c95d977482fc872c51996
+# vfs: Suppress MS_* flag defs within the kernel ...
+#
+AC_DEFUN([LC_UAPI_LINUX_MOUNT_H], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if MS_RDONLY was moved to uapi/linux/mount.h],
+uapi_linux_mount, [
+       #include <uapi/linux/mount.h>
+],[
+       int x = MS_RDONLY;
+       (void)x;
+],[
+       AC_DEFINE(HAVE_UAPI_LINUX_MOUNT_H, 1,
+               [if MS_RDONLY was moved to uapi/linux/mount.h])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_UAPI_LINUX_MOUNT_H
+
+#
 # LC_BIO_INTEGRITY_ENABLED
 #
 # 4.13 removed bio_integrity_enabled
@@ -3423,6 +3445,9 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 4.18
        LC_INODE_TIMESPEC64
 
+       # 5.0
+       LC_UAPI_LINUX_MOUNT_H
+
        # kernel patch to extend integrity interface
        LC_BIO_INTEGRITY_PREP_FN