LU-1187 lod: Add remote object for DNE

[fs/lustre-release.git] / lustre / lod / lod_object.c

diff --git a/lustre/lod/lod_object.c b/lustre/lod/lod_object.c
index 4573531..de28d9c 100644 (file)
--- a/lustre/lod/lod_object.c
+++ b/lustre/lod/lod_object.c
@@ -1225,3 +1225,51 @@ struct lu_object_operations lod_lu_obj_ops = {
        .loo_object_release     = lod_object_release,
        .loo_object_print       = lod_object_print,
 };
        .loo_object_release     = lod_object_release,
        .loo_object_print       = lod_object_print,
 };

+
+/**
+ * Init remote lod object
+ */
+static int lod_robject_init(const struct lu_env *env, struct lu_object *lo,
+                           const struct lu_object_conf *conf)
+{
+       struct lod_device *lod = lu2lod_dev(lo->lo_dev);
+       struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
+       struct lu_device  *c_dev = NULL;
+       struct lu_object  *c_obj;
+       int i;
+       ENTRY;
+
+       lod_getref(ltd);
+       if (ltd->ltd_tgts_size > 0) {
+               cfs_foreach_bit(ltd->ltd_tgt_bitmap, i) {
+                       struct lod_tgt_desc *tgt;
+                       tgt = LTD_TGT(ltd, i);
+                       LASSERT(tgt && tgt->ltd_tgt);
+                       if (tgt->ltd_index ==
+                           lu2lod_obj(lo)->ldo_mds_num) {
+                               c_dev = &(tgt->ltd_tgt->dd_lu_dev);
+                               break;
+                       }
+               }
+       }
+       lod_putref(lod, ltd);
+
+       if (unlikely(c_dev == NULL))
+               RETURN(-ENOENT);
+
+       c_obj = c_dev->ld_ops->ldo_object_alloc(env, lo->lo_header, c_dev);
+       if (unlikely(c_obj == NULL))
+               RETURN(-ENOMEM);
+
+       lu_object_add(lo, c_obj);
+
+       RETURN(0);
+}
+
+struct lu_object_operations lod_lu_robj_ops = {
+       .loo_object_init      = lod_robject_init,
+       .loo_object_start     = lod_object_start,
+       .loo_object_free      = lod_object_free,
+       .loo_object_release   = lod_object_release,
+       .loo_object_print     = lod_object_print,
+};