xfs: check for dinode realtime flag corruption

[safe/jmp/linux-2.6] / fs / xfs / xfs_inode.c

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 1f22d65..da428b3 100644 (file)
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -343,6 +343,16 @@ xfs_iformat(
                return XFS_ERROR(EFSCORRUPTED);
        }
 
+       if (unlikely((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) &&
+                    !ip->i_mount->m_rtdev_targp)) {
+               xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount,
+                       "corrupt dinode %Lu, has realtime flag set.",
+                       ip->i_ino);
+               XFS_CORRUPTION_ERROR("xfs_iformat(realtime)",
+                                    XFS_ERRLEVEL_LOW, ip->i_mount, dip);
+               return XFS_ERROR(EFSCORRUPTED);
+       }
+
        switch (ip->i_d.di_mode & S_IFMT) {
        case S_IFIFO:
        case S_IFCHR: