From c1604fa403ec3099cd213e67689c76f456788673 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Thu, 9 Nov 2017 11:35:25 -0600
Subject: [PATCH] xfs_repair: clear DAX flag from non-file inodes

The DAX flag should only be set for files and directories.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
---
 repair/dinode.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/repair/dinode.c b/repair/dinode.c
index e7de6d429..e62ec335d 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -2510,6 +2510,18 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"),
 			flags2 &= XFS_DIFLAG2_ANY;
 		}
 
+		if (flags2 & XFS_DIFLAG2_DAX) {
+			/* must be a file or dir */
+			if (di_mode && !(S_ISREG(di_mode) || S_ISDIR(di_mode))) {
+				if (!uncertain) {
+					do_warn(
+	_("DAX flag set on special inode %" PRIu64 "\n"),
+						lino);
+				}
+				flags2 &= ~XFS_DIFLAG2_DAX;
+			}
+		}
+
 		if ((flags2 & XFS_DIFLAG2_REFLINK) &&
 		    !xfs_sb_version_hasreflink(&mp->m_sb)) {
 			if (!uncertain) {
-- 
2.47.2