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LU-5223 lmv: build master LMV EA dynamically build via readdir
[fs/lustre-release.git] / lustre / osp / osp_md_object.c
index 39fcb66..d84a259 100644 (file)
@@ -45,13 +45,13 @@ int osp_md_declare_object_create(const struct lu_env *env,
                                 struct dt_object_format *dof,
                                 struct thandle *th)
 {
-       struct osp_thread_info  *osi = osp_env_info(env);
-       struct update_request   *update;
-       struct lu_fid           *fid1;
-       int                     sizes[2] = {sizeof(struct obdo), 0};
-       char                    *bufs[2] = {NULL, NULL};
-       int                     buf_count;
-       int                     rc;
+       struct osp_thread_info          *osi = osp_env_info(env);
+       struct dt_update_request        *update;
+       struct lu_fid                   *fid1;
+       int                             sizes[2] = {sizeof(struct obdo), 0};
+       char                            *bufs[2] = {NULL, NULL};
+       int                             buf_count;
+       int                             rc;
 
        update = out_find_create_update_loc(th, dt);
        if (IS_ERR(update)) {
@@ -64,19 +64,16 @@ int osp_md_declare_object_create(const struct lu_env *env,
        osi->osi_obdo.o_valid = 0;
        obdo_from_la(&osi->osi_obdo, attr, attr->la_valid);
        lustre_set_wire_obdo(NULL, &osi->osi_obdo, &osi->osi_obdo);
-       obdo_cpu_to_le(&osi->osi_obdo, &osi->osi_obdo);
 
        bufs[0] = (char *)&osi->osi_obdo;
        buf_count = 1;
        fid1 = (struct lu_fid *)lu_object_fid(&dt->do_lu);
        if (hint != NULL && hint->dah_parent) {
                struct lu_fid *fid2;
-               struct lu_fid *tmp_fid = &osi->osi_fid;
 
                fid2 = (struct lu_fid *)lu_object_fid(&hint->dah_parent->do_lu);
-               fid_cpu_to_le(tmp_fid, fid2);
-               sizes[1] = sizeof(*tmp_fid);
-               bufs[1] = (char *)tmp_fid;
+               sizes[1] = sizeof(*fid2);
+               bufs[1] = (char *)fid2;
                buf_count++;
        }
 
@@ -97,20 +94,20 @@ int osp_md_declare_object_create(const struct lu_env *env,
                CDEBUG(D_HA, "%s: object "DFID" exists, destroy this orphan\n",
                       dt->do_lu.lo_dev->ld_obd->obd_name, PFID(fid1));
 
-               rc = out_insert_update(env, update, OBJ_REF_DEL, fid1, 0,
+               rc = out_insert_update(env, update, OUT_REF_DEL, fid1, 0,
                                       NULL, NULL);
                if (rc != 0)
                        GOTO(out, rc);
 
                if (S_ISDIR(lu_object_attr(&dt->do_lu))) {
                        /* decrease for ".." */
-                       rc = out_insert_update(env, update, OBJ_REF_DEL, fid1,
+                       rc = out_insert_update(env, update, OUT_REF_DEL, fid1,
                                               0, NULL, NULL);
                        if (rc != 0)
                                GOTO(out, rc);
                }
 
-               rc = out_insert_update(env, update, OBJ_DESTROY, fid1, 0, NULL,
+               rc = out_insert_update(env, update, OUT_DESTROY, fid1, 0, NULL,
                                       NULL);
                if (rc != 0)
                        GOTO(out, rc);
@@ -121,7 +118,7 @@ int osp_md_declare_object_create(const struct lu_env *env,
                update_inc_batchid(update);
        }
 
-       rc = out_insert_update(env, update, OBJ_CREATE, fid1, buf_count, sizes,
+       rc = out_insert_update(env, update, OUT_CREATE, fid1, buf_count, sizes,
                               (const char **)bufs);
 out:
        if (rc)
@@ -135,8 +132,6 @@ int osp_md_object_create(const struct lu_env *env, struct dt_object *dt,
                         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));
 
@@ -144,7 +139,6 @@ int osp_md_object_create(const struct lu_env *env, struct dt_object *dt,
         * 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;
 }
@@ -153,9 +147,9 @@ static int osp_md_declare_object_ref_del(const struct lu_env *env,
                                         struct dt_object *dt,
                                         struct thandle *th)
 {
-       struct update_request   *update;
-       struct lu_fid           *fid;
-       int                     rc;
+       struct dt_update_request        *update;
+       struct lu_fid                   *fid;
+       int                             rc;
 
        update = out_find_create_update_loc(th, dt);
        if (IS_ERR(update)) {
@@ -167,7 +161,7 @@ static int osp_md_declare_object_ref_del(const struct lu_env *env,
 
        fid = (struct lu_fid *)lu_object_fid(&dt->do_lu);
 
-       rc = out_insert_update(env, update, OBJ_REF_DEL, fid, 0, NULL, NULL);
+       rc = out_insert_update(env, update, OUT_REF_DEL, fid, 0, NULL, NULL);
 
        return rc;
 }
@@ -185,9 +179,9 @@ static int osp_md_object_ref_del(const struct lu_env *env,
 static int osp_md_declare_ref_add(const struct lu_env *env,
                                  struct dt_object *dt, struct thandle *th)
 {
-       struct update_request   *update;
-       struct lu_fid           *fid;
-       int                     rc;
+       struct dt_update_request        *update;
+       struct lu_fid                   *fid;
+       int                             rc;
 
        update = out_find_create_update_loc(th, dt);
        if (IS_ERR(update)) {
@@ -199,7 +193,7 @@ static int osp_md_declare_ref_add(const struct lu_env *env,
 
        fid = (struct lu_fid *)lu_object_fid(&dt->do_lu);
 
-       rc = out_insert_update(env, update, OBJ_REF_ADD, fid, 0, NULL, NULL);
+       rc = out_insert_update(env, update, OUT_REF_ADD, fid, 0, NULL, NULL);
 
        return rc;
 }
@@ -222,7 +216,6 @@ static void osp_md_ah_init(const struct lu_env *env,
 {
        LASSERT(ah);
 
-       memset(ah, 0, sizeof(*ah));
        ah->dah_parent = parent;
        ah->dah_mode = child_mode;
 }
@@ -230,12 +223,12 @@ static void osp_md_ah_init(const struct lu_env *env,
 int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
                            const struct lu_attr *attr, struct thandle *th)
 {
-       struct osp_thread_info *osi = osp_env_info(env);
-       struct update_request  *update;
-       struct lu_fid          *fid;
-       int                     size = sizeof(struct obdo);
-       char                   *buf;
-       int                     rc;
+       struct osp_thread_info          *osi = osp_env_info(env);
+       struct dt_update_request        *update;
+       struct lu_fid                   *fid;
+       int                             size = sizeof(struct obdo);
+       char                            *buf;
+       int                             rc;
 
        update = out_find_create_update_loc(th, dt);
        if (IS_ERR(update)) {
@@ -249,12 +242,11 @@ int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
        obdo_from_la(&osi->osi_obdo, (struct lu_attr *)attr,
                     attr->la_valid);
        lustre_set_wire_obdo(NULL, &osi->osi_obdo, &osi->osi_obdo);
-       obdo_cpu_to_le(&osi->osi_obdo, &osi->osi_obdo);
 
        buf = (char *)&osi->osi_obdo;
        fid = (struct lu_fid *)lu_object_fid(&dt->do_lu);
 
-       rc = out_insert_update(env, update, OBJ_ATTR_SET, fid, 1, &size,
+       rc = out_insert_update(env, update, OUT_ATTR_SET, fid, 1, &size,
                               (const char **)&buf);
 
        return rc;
@@ -325,13 +317,12 @@ static int osp_md_index_lookup(const struct lu_env *env, struct dt_object *dt,
        struct lu_buf           *lbuf   = &osp_env_info(env)->osi_lb2;
        struct osp_device       *osp    = lu2osp_dev(dt->do_lu.lo_dev);
        struct dt_device        *dt_dev = &osp->opd_dt_dev;
-       struct update_request   *update;
-       struct ptlrpc_request   *req = NULL;
-       int                     size = strlen((char *)key) + 1;
-       int                     rc;
-       struct update_reply     *reply;
-       struct lu_fid           *fid;
-
+       struct dt_update_request   *update;
+       struct object_update_reply *reply;
+       struct ptlrpc_request      *req = NULL;
+       int                        size = strlen((char *)key) + 1;
+       struct lu_fid              *fid;
+       int                        rc;
        ENTRY;
 
        /* Because it needs send the update buffer right away,
@@ -342,9 +333,9 @@ static int osp_md_index_lookup(const struct lu_env *env, struct dt_object *dt,
        if (IS_ERR(update))
                RETURN(PTR_ERR(update));
 
-       rc = out_insert_update(env, update, OBJ_INDEX_LOOKUP,
-                              lu_object_fid(&dt->do_lu), 1, &size,
-                              (const char **)&key);
+       rc = out_insert_update(env, update, OUT_INDEX_LOOKUP,
+                              lu_object_fid(&dt->do_lu),
+                              1, &size, (const char **)&key);
        if (rc) {
                CERROR("%s: Insert update error: rc = %d\n",
                       dt_dev->dd_lu_dev.ld_obd->obd_name, rc);
@@ -355,26 +346,19 @@ static int osp_md_index_lookup(const struct lu_env *env, struct dt_object *dt,
        if (rc < 0)
                GOTO(out, rc);
 
-       reply = req_capsule_server_sized_get(&req->rq_pill, &RMF_UPDATE_REPLY,
-                                            UPDATE_BUFFER_SIZE);
-       if (reply->ur_version != UPDATE_REPLY_V1) {
+       reply = req_capsule_server_sized_get(&req->rq_pill,
+                                            &RMF_OUT_UPDATE_REPLY,
+                                            OUT_UPDATE_REPLY_SIZE);
+       if (reply->ourp_magic != UPDATE_REPLY_MAGIC) {
                CERROR("%s: Wrong version %x expected %x: rc = %d\n",
                       dt_dev->dd_lu_dev.ld_obd->obd_name,
-                      reply->ur_version, UPDATE_REPLY_V1, -EPROTO);
+                      reply->ourp_magic, UPDATE_REPLY_MAGIC, -EPROTO);
                GOTO(out, rc = -EPROTO);
        }
 
-       rc = update_get_reply_result(reply, NULL, 0);
-       if (rc < 0) {
-               CERROR("%s: wrong version lookup "DFID" %s: rc = %d\n",
-                      dt_dev->dd_lu_dev.ld_obd->obd_name,
-                      PFID(lu_object_fid(&dt->do_lu)), (char *)key, rc);
-               GOTO(out, rc);
-       }
-
-       rc = update_get_reply_buf(reply, lbuf, 0);
+       rc = object_update_result_data_get(reply, lbuf, 0);
        if (rc < 0)
-               GOTO(out, rc);
+               GOTO(out, rc = size);
 
        if (lbuf->lb_len != sizeof(*fid)) {
                CERROR("%s: lookup "DFID" %s wrong size %d\n",
@@ -385,7 +369,8 @@ static int osp_md_index_lookup(const struct lu_env *env, struct dt_object *dt,
        }
 
        fid = lbuf->lb_buf;
-       fid_le_to_cpu(fid, fid);
+       if (ptlrpc_rep_need_swab(req))
+               lustre_swab_lu_fid(fid);
        if (!fid_is_sane(fid)) {
                CERROR("%s: lookup "DFID" %s invalid fid "DFID"\n",
                       dt_dev->dd_lu_dev.ld_obd->obd_name,
@@ -412,13 +397,13 @@ static int osp_md_declare_insert(const struct lu_env *env,
                                 const struct dt_key *key,
                                 struct thandle *th)
 {
-       struct update_request   *update;
-       struct lu_fid           *fid;
-       struct lu_fid           *rec_fid = (struct lu_fid *)rec;
-       int                     size[2] = {strlen((char *)key) + 1,
+       struct dt_update_request *update;
+       struct lu_fid            *fid;
+       struct lu_fid            *rec_fid = (struct lu_fid *)rec;
+       int                      size[2] = {strlen((char *)key) + 1,
                                                  sizeof(*rec_fid)};
-       const char              *bufs[2] = {(char *)key, (char *)rec_fid};
-       int                     rc;
+       const char               *bufs[2] = {(char *)key, (char *)rec_fid};
+       int                      rc;
 
        update = out_find_create_update_loc(th, dt);
        if (IS_ERR(update)) {
@@ -436,7 +421,7 @@ static int osp_md_declare_insert(const struct lu_env *env,
 
        fid_cpu_to_le(rec_fid, rec_fid);
 
-       rc = out_insert_update(env, update, OBJ_INDEX_INSERT, fid,
+       rc = out_insert_update(env, update, OUT_INDEX_INSERT, fid,
                               ARRAY_SIZE(size), size, bufs);
        return rc;
 }
@@ -457,7 +442,7 @@ static int osp_md_declare_delete(const struct lu_env *env,
                                 const struct dt_key *key,
                                 struct thandle *th)
 {
-       struct update_request *update;
+       struct dt_update_request *update;
        struct lu_fid *fid;
        int size = strlen((char *)key) + 1;
        int rc;
@@ -472,7 +457,7 @@ static int osp_md_declare_delete(const struct lu_env *env,
 
        fid = (struct lu_fid *)lu_object_fid(&dt->do_lu);
 
-       rc = out_insert_update(env, update, OBJ_INDEX_DELETE, fid, 1, &size,
+       rc = out_insert_update(env, update, OUT_INDEX_DELETE, fid, 1, &size,
                               (const char **)&key);
 
        return rc;
@@ -490,94 +475,102 @@ static int osp_md_index_delete(const struct lu_env *env,
        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 OBJ_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,
@@ -588,10 +581,10 @@ static const struct dt_index_operations osp_md_index_ops = {
                .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,
@@ -610,23 +603,22 @@ static int osp_md_object_lock(const struct lu_env *env,
                              struct dt_object *dt,
                              struct lustre_handle *lh,
                              struct ldlm_enqueue_info *einfo,
-                             void *policy)
+                             ldlm_policy_data_t *policy)
 {
-       struct osp_thread_info *info = osp_env_info(env);
-       struct ldlm_res_id     *res_id = &info->osi_resid;
-       struct dt_device       *dt_dev = lu2dt_dev(dt->do_lu.lo_dev);
-       struct osp_device      *osp = dt2osp_dev(dt_dev);
-       struct ptlrpc_request  *req = NULL;
-       int                     rc = 0;
-       __u64                   flags = 0;
-       ldlm_mode_t             mode;
+       struct ldlm_res_id      *res_id;
+       struct dt_device        *dt_dev = lu2dt_dev(dt->do_lu.lo_dev);
+       struct osp_device       *osp = dt2osp_dev(dt_dev);
+       struct ptlrpc_request   *req;
+       int                     rc = 0;
+       __u64                   flags = 0;
+       ldlm_mode_t             mode;
 
-       fid_build_reg_res_name(lu_object_fid(&dt->do_lu), res_id);
+       res_id = einfo->ei_res_id;
+       LASSERT(res_id != NULL);
 
        mode = ldlm_lock_match(osp->opd_obd->obd_namespace,
                               LDLM_FL_BLOCK_GRANTED, res_id,
-                              einfo->ei_type,
-                              (ldlm_policy_data_t *)policy,
+                              einfo->ei_type, policy,
                               einfo->ei_mode, lh, 0);
        if (mode > 0)
                return ELDLM_OK;
@@ -644,6 +636,19 @@ static int osp_md_object_lock(const struct lu_env *env,
        return rc == ELDLM_OK ? 0 : -EIO;
 }
 
+static int osp_md_object_unlock(const struct lu_env *env,
+                               struct dt_object *dt,
+                               struct ldlm_enqueue_info *einfo,
+                               ldlm_policy_data_t *policy)
+{
+       struct lustre_handle    *lockh = einfo->ei_cbdata;
+
+       /* unlock finally */
+       ldlm_lock_decref(lockh, einfo->ei_mode);
+
+       return 0;
+}
+
 struct dt_object_operations osp_md_obj_ops = {
        .do_read_lock         = osp_md_object_read_lock,
        .do_write_lock        = osp_md_object_write_lock,
@@ -665,6 +670,53 @@ struct dt_object_operations osp_md_obj_ops = {
        .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,
+};
+
+static ssize_t osp_md_declare_write(const struct lu_env *env,
+                                   struct dt_object *dt,
+                                   const struct lu_buf *buf,
+                                   loff_t pos, struct thandle *th)
+{
+       struct dt_update_request  *update;
+       struct lu_fid             *fid;
+       int                       sizes[2] = {buf->lb_len, sizeof(pos)};
+       const char                *bufs[2] = {(char *)buf->lb_buf,
+                                             (char *)&pos};
+       ssize_t                   rc;
+
+       update = out_find_create_update_loc(th, dt);
+       if (IS_ERR(update)) {
+               CERROR("%s: Get OSP update buf failed: rc = %d\n",
+                      dt->do_lu.lo_dev->ld_obd->obd_name,
+                      (int)PTR_ERR(update));
+               return PTR_ERR(update);
+       }
+
+       pos = cpu_to_le64(pos);
+       bufs[1] = (char *)&pos;
+       fid = (struct lu_fid *)lu_object_fid(&dt->do_lu);
+       rc = out_insert_update(env, update, OUT_WRITE, fid,
+                              ARRAY_SIZE(sizes), sizes, bufs);
+
+       return rc;
+
+}
+
+static ssize_t osp_md_write(const struct lu_env *env, struct dt_object *dt,
+                           const struct lu_buf *buf, loff_t *pos,
+                           struct thandle *handle,
+                           struct lustre_capa *capa, int ignore_quota)
+{
+       return buf->lb_len;
+}
+
+/* These body operation will be used to write symlinks during migration etc */
+struct dt_body_operations osp_md_body_ops = {
+       .dbo_declare_write      = osp_md_declare_write,
+       .dbo_write              = osp_md_write,
 };