struct xfs_inode *ip,
struct xfs_dinode *dip)
{
+ uint16_t flags;
+ uint64_t flags2;
+
if (dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))
return false;
return false;
if (!uuid_equal(&dip->di_uuid, &mp->m_sb.sb_meta_uuid))
return false;
+
+ flags = be16_to_cpu(dip->di_flags);
+ flags2 = be64_to_cpu(dip->di_flags2);
+
+ /* don't allow reflink/cowextsize if we don't have reflink */
+ if ((flags2 & (XFS_DIFLAG2_REFLINK | XFS_DIFLAG2_COWEXTSIZE)) &&
+ !xfs_sb_version_hasreflink(&mp->m_sb))
+ return false;
+
+ /* don't let reflink and realtime mix */
+ if ((flags2 & XFS_DIFLAG2_REFLINK) && (flags & XFS_DIFLAG_REALTIME))
+ return false;
+
return true;
}