1 files changed, 14 insertions, 4 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 1f22d65fed0a..c1dc7ef5a1d8 100644
--- 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:
@@ -641,7 +651,7 @@ xfs_iformat_btree(
         return 0;
 }
 
-void
+STATIC void
 xfs_dinode_from_disk(
         xfs_icdinode_t          *to,
         xfs_dinode_t            *from)
@@ -1237,7 +1247,7 @@ xfs_isize_check(
  * In that case the pages will still be in memory, but the inode size
  * will never have been updated.
  */
-xfs_fsize_t
+STATIC xfs_fsize_t
 xfs_file_last_byte(
         xfs_inode_t     *ip)
 {
@@ -3827,7 +3837,7 @@ xfs_iext_inline_to_direct(
 /*
  * Resize an extent indirection array to new_size bytes.
  */
-void
+STATIC void
 xfs_iext_realloc_indirect(
         xfs_ifork_t     *ifp,           /* inode fork pointer */
         int             new_size)       /* new indirection array size */
@@ -3852,7 +3862,7 @@ xfs_iext_realloc_indirect(
 /*
  * Switch from indirection array to linear (direct) extent allocations.
  */
-void
+STATIC void
 xfs_iext_indirect_to_direct(
          xfs_ifork_t    *ifp)           /* inode fork pointer */
 {