LU-9846 lod: Add overstriping support

[fs/lustre-release.git] / lustre / mdt / mdt_handler.c

diff --git a/lustre/mdt/mdt_handler.c b/lustre/mdt/mdt_handler.c
index 33d9847..e6855bf 100644 (file)
--- a/lustre/mdt/mdt_handler.c
+++ b/lustre/mdt/mdt_handler.c
@@ -1205,8 +1205,15 @@ static int mdt_getattr_internal(struct mdt_thread_info *info,
                ma->ma_lmm = buffer->lb_buf;
                ma->ma_lmm_size = buffer->lb_len;
                ma->ma_need = MA_INODE | MA_HSM;
-               if (ma->ma_lmm_size > 0)
+               if (ma->ma_lmm_size > 0) {
                        ma->ma_need |= MA_LOV;
+                       /* Older clients may crash if they getattr overstriped
+                        * files
+                        */
+                       if (!exp_connect_overstriping(exp) &&
+                           mdt_lmm_is_overstriping(ma->ma_lmm))
+                               RETURN(-EOPNOTSUPP);
+               }
        }
 
         if (S_ISDIR(lu_object_attr(&next->mo_lu)) &&