struct lu_attr *attr, struct dt_allocation_hint *hint,
struct dt_object_format *dof, struct thandle *th)
{
- struct osp_object *obj = dt2osp_obj(dt);
-
CDEBUG(D_INFO, "create object "DFID"\n",
PFID(&dt->do_lu.lo_header->loh_fid));
* if creation reaches here, it means the object has been created
* successfully */
dt->do_lu.lo_header->loh_attr |= LOHA_EXISTS | (attr->la_mode & S_IFMT);
- obj->opo_empty = 1;
return 0;
}
return 0;
}
-/**
- * Creates or initializes iterator context.
- *
- * Note: for OSP, these index iterate api is only used to check
- * whether the directory is empty now (see mdd_dir_is_empty).
- * Since dir_empty will be return by OUT_ATTR_GET(see osp_attr_get/
- * out_attr_get). So the implementation of these iterator is simplied
- * to make mdd_dir_is_empty happy. The real iterator should be
- * implemented, if we need it one day.
- */
-static struct dt_it *osp_it_init(const struct lu_env *env,
- struct dt_object *dt,
- __u32 attr,
- struct lustre_capa *capa)
-{
- lu_object_get(&dt->do_lu);
- return (struct dt_it *)dt;
-}
-
-static void osp_it_fini(const struct lu_env *env, struct dt_it *di)
-{
- struct dt_object *dt = (struct dt_object *)di;
- lu_object_put(env, &dt->do_lu);
-}
-
-static int osp_it_get(const struct lu_env *env,
- struct dt_it *di, const struct dt_key *key)
-{
- return 1;
-}
-
-static void osp_it_put(const struct lu_env *env, struct dt_it *di)
+int osp_md_index_it_next(const struct lu_env *env, struct dt_it *di)
{
- return;
-}
+ struct osp_it *it = (struct osp_it *)di;
+ struct lu_idxpage *idxpage;
+ struct lu_dirent *ent = (struct lu_dirent *)it->ooi_ent;
+ int rc;
+ ENTRY;
-static int osp_it_next(const struct lu_env *env, struct dt_it *di)
-{
- struct dt_object *dt = (struct dt_object *)di;
- struct osp_object *o = dt2osp_obj(dt);
+again:
+ idxpage = it->ooi_cur_idxpage;
+ if (idxpage != NULL) {
+ if (idxpage->lip_nr == 0)
+ RETURN(1);
+
+ it->ooi_pos_ent++;
+ if (ent == NULL) {
+ it->ooi_ent =
+ (struct lu_dirent *)idxpage->lip_entries;
+ RETURN(0);
+ } else if (le16_to_cpu(ent->lde_reclen) != 0 &&
+ it->ooi_pos_ent < idxpage->lip_nr) {
+ ent = (struct lu_dirent *)(((char *)ent) +
+ le16_to_cpu(ent->lde_reclen));
+ it->ooi_ent = ent;
+ RETURN(0);
+ } else {
+ it->ooi_ent = NULL;
+ }
+ }
- if (o->opo_empty)
- return 1;
+ rc = osp_it_next_page(env, di);
+ if (rc == 0)
+ goto again;
- return 0;
+ RETURN(rc);
}
static struct dt_key *osp_it_key(const struct lu_env *env,
const struct dt_it *di)
{
- LBUG();
- return NULL;
+ struct osp_it *it = (struct osp_it *)di;
+ struct lu_dirent *ent = (struct lu_dirent *)it->ooi_ent;
+
+ return (struct dt_key *)ent->lde_name;
}
static int osp_it_key_size(const struct lu_env *env, const struct dt_it *di)
{
- LBUG();
- return 0;
-}
+ struct osp_it *it = (struct osp_it *)di;
+ struct lu_dirent *ent = (struct lu_dirent *)it->ooi_ent;
-static int osp_it_rec(const struct lu_env *env, const struct dt_it *di,
- struct dt_rec *lde, __u32 attr)
-{
- LBUG();
- return 0;
+ return (int)le16_to_cpu(ent->lde_namelen);
}
-static __u64 osp_it_store(const struct lu_env *env, const struct dt_it *di)
+static int osp_md_index_it_rec(const struct lu_env *env, const struct dt_it *di,
+ struct dt_rec *rec, __u32 attr)
{
- LBUG();
+ struct osp_it *it = (struct osp_it *)di;
+ struct lu_dirent *ent = (struct lu_dirent *)it->ooi_ent;
+ int reclen;
+
+ reclen = lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen), attr);
+ memcpy(rec, ent, reclen);
return 0;
}
+/**
+ * Locate the iteration cursor to the specified position (cookie).
+ *
+ * \param[in] env pointer to the thread context
+ * \param[in] di pointer to the iteration structure
+ * \param[in] hash the specified position
+ *
+ * \retval positive number for locating to the exactly position
+ * or the next
+ * \retval 0 for arriving at the end of the iteration
+ * \retval negative error number on failure
+ */
static int osp_it_load(const struct lu_env *env, const struct dt_it *di,
__u64 hash)
{
- LBUG();
- return 0;
-}
+ struct osp_it *it = (struct osp_it *)di;
+ int rc;
-static int osp_it_key_rec(const struct lu_env *env, const struct dt_it *di,
- void *key_rec)
-{
- LBUG();
- return 0;
+ it->ooi_next = hash;
+ rc = osp_md_index_it_next(env, (struct dt_it *)di);
+ if (rc == 1)
+ return 0;
+
+ if (rc == 0)
+ return 1;
+
+ return rc;
}
-static const struct dt_index_operations osp_md_index_ops = {
+const struct dt_index_operations osp_md_index_ops = {
.dio_lookup = osp_md_index_lookup,
.dio_declare_insert = osp_md_declare_insert,
.dio_insert = osp_md_index_insert,
.fini = osp_it_fini,
.get = osp_it_get,
.put = osp_it_put,
- .next = osp_it_next,
+ .next = osp_md_index_it_next,
.key = osp_it_key,
.key_size = osp_it_key_size,
- .rec = osp_it_rec,
+ .rec = osp_md_index_it_rec,
.store = osp_it_store,
.load = osp_it_load,
.key_rec = osp_it_key_rec,
.do_xattr_get = osp_xattr_get,
.do_declare_xattr_set = osp_declare_xattr_set,
.do_xattr_set = osp_xattr_set,
+ .do_declare_xattr_del = osp_declare_xattr_del,
+ .do_xattr_del = osp_xattr_del,
.do_index_try = osp_md_index_try,
.do_object_lock = osp_md_object_lock,
.do_object_unlock = osp_md_object_unlock,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff