LU-2445 utils: lfs migrate support

[fs/lustre-release.git] / lustre / lmv / lmv_obd.c

diff --git a/lustre/lmv/lmv_obd.c b/lustre/lmv/lmv_obd.c
index c868ae8..d4284e6 100644 (file)
--- a/lustre/lmv/lmv_obd.c
+++ b/lustre/lmv/lmv_obd.c
@@ -940,12 +940,17 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
        case LL_IOC_HSM_ACTION:
        case LL_IOC_LOV_SWAP_LAYOUTS: {
                struct md_op_data       *op_data = karg;
-               struct lmv_tgt_desc     *tgt;
+               struct lmv_tgt_desc     *tgt1, *tgt2;
 
-               tgt = lmv_find_target(lmv, &op_data->op_fid1);
-               if (!tgt->ltd_exp)
+               tgt1 = lmv_find_target(lmv, &op_data->op_fid1);
+               tgt2 = lmv_find_target(lmv, &op_data->op_fid2);
+               if ((tgt1->ltd_exp == NULL) || (tgt2->ltd_exp == NULL))
                        RETURN(-EINVAL);
 
+               /* only files on same MDT can be have their layouts swapped */
+               if (tgt1->ltd_idx != tgt2->ltd_idx)
+                       RETURN(-EPERM);
+
                rc = obd_iocontrol(cmd, lmv->tgts[0]->ltd_exp, len, karg, uarg);
                break;
        }