staging/lustre/lov: don't crash accessing LOV object with FID{0, 0}

[karo-tx-linux.git] / drivers / staging / lustre / lustre / lov / lov_ea.c

diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index d1b0417d50583a2b2d3a99c049020ae6d6de5f87..2bcfaeaff6fa586efe924ed1edf182d0c980177b 100644 (file)
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -227,6 +227,9 @@ static int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
                ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
                loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
                loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
+               if (lov_oinfo_is_dummy(loi))
+                       continue;
+
                if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
                        CERROR("OST index %d more than OST count %d\n",
                               loi->loi_ost_idx, lov->desc.ld_tgt_count);
@@ -314,6 +317,9 @@ static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
                ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
                loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
                loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
+               if (lov_oinfo_is_dummy(loi))
+                       continue;
+
                if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
                        CERROR("OST index %d more than OST count %d\n",
                               loi->loi_ost_idx, lov->desc.ld_tgt_count);