LU-17334 lmv: handle object created on newly added MDT

[fs/lustre-release.git] / lustre / lmv / lmv_internal.h

diff --git a/lustre/lmv/lmv_internal.h b/lustre/lmv/lmv_internal.h
index 6340605..b6c1591 100644 (file)
--- a/lustre/lmv/lmv_internal.h
+++ b/lustre/lmv/lmv_internal.h
@@ -80,15 +80,14 @@ static inline struct obd_device *lmv2obd_dev(struct lmv_obd *lmv)
        return container_of_safe(lmv, struct obd_device, u.lmv);
 }
 
-static inline struct lu_tgt_desc *
-lmv_tgt(struct lmv_obd *lmv, __u32 index)
+static inline struct lu_tgt_desc *lmv_tgt(struct lmv_obd *lmv, __u32 index)
 {
        return index < lmv->lmv_mdt_descs.ltd_tgts_size ?
                LTD_TGT(&lmv->lmv_mdt_descs, index) : NULL;
 }
+struct lu_tgt_desc *lmv_tgt_retry(struct lmv_obd *lmv, __u32 index);
 
-static inline bool
-lmv_mdt0_inited(struct lmv_obd *lmv)
+static inline bool lmv_mdt0_inited(struct lmv_obd *lmv)
 {
        return lmv->lmv_mdt_descs.ltd_tgts_size > 0 &&
               test_bit(0, lmv->lmv_mdt_descs.ltd_tgt_bitmap);
@@ -148,11 +147,14 @@ lmv_fid2tgt(struct lmv_obd *lmv, const struct lu_fid *fid)
        struct lu_tgt_desc *tgt;
        int index;
 
+       if (!fid_is_sane(fid))
+               return ERR_PTR(-EINVAL);
+
        index = lmv_fid2tgt_index(lmv, fid);
        if (index < 0)
                return ERR_PTR(index);
 
-       tgt = lmv_tgt(lmv, index);
+       tgt = lmv_tgt_retry(lmv, index);
 
        return tgt ? tgt : ERR_PTR(-ENODEV);
 }