1 files changed, 2 insertions, 0 deletions

diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c
index cfee14a83cfe..e16985e1c2fd 100644
--- a/fs/xfs/xfs_inode_fork.c
+++ b/fs/xfs/xfs_inode_fork.c
@@ -431,6 +431,8 @@ xfs_iread_extents(
         xfs_ifork_t     *ifp;
         xfs_extnum_t    nextents;
 
+        ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
         if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
                 XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW,
                                  ip->i_mount);