xfs: preserve DIFLAG2_NREXT64 when setting other inode attributes

It is vitally important that we preserve the state of the NREXT64 inode
flag when we're changing the other flags2 fields.

Fixes: 9b7d16e34bbe ("xfs: Introduce XFS_DIFLAG2_NREXT64 and associated helpers")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 5a364a7..0d67ff8 100644 (file)
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1096,7 +1096,8 @@ xfs_flags2diflags2(
 {
        uint64_t                di_flags2 =
                (ip->i_diflags2 & (XFS_DIFLAG2_REFLINK |
-                                  XFS_DIFLAG2_BIGTIME));
+                                  XFS_DIFLAG2_BIGTIME |
+                                  XFS_DIFLAG2_NREXT64));
 
        if (xflags & FS_XFLAG_DAX)
                di_flags2 |= XFS_DIFLAG2_DAX;