4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2013, 2015, Intel Corporation.
25 * lustre/target/out_handler.c
27 * Object update handler between targets.
29 * Author: di.wang <di.wang@intel.com>
32 #define DEBUG_SUBSYSTEM S_CLASS
34 #include <llog_swab.h>
35 #include <lustre_obdo.h>
36 #include <lustre_swab.h>
37 #include <lustre_update.h>
38 #include <md_object.h>
39 #include <obd_class.h>
40 #include "tgt_internal.h"
42 static inline void orr_cpu_to_le(struct out_read_reply *orr_dst,
43 const struct out_read_reply *orr_src)
45 orr_dst->orr_size = cpu_to_le32(orr_src->orr_size);
46 orr_dst->orr_padding = cpu_to_le32(orr_src->orr_padding);
47 orr_dst->orr_offset = cpu_to_le64(orr_dst->orr_offset);
50 static void out_reconstruct(const struct lu_env *env, struct dt_device *dt,
51 struct dt_object *obj,
52 struct object_update_reply *reply,
55 CDEBUG(D_INFO, "%s: fork reply reply %p index %d: rc = %d\n",
56 dt_obd_name(dt), reply, index, 0);
58 object_update_result_insert(reply, NULL, 0, index, 0);
62 typedef void (*out_reconstruct_t)(const struct lu_env *env,
64 struct dt_object *obj,
65 struct object_update_reply *reply,
68 static inline int out_check_resent(const struct lu_env *env,
70 struct dt_object *obj,
71 struct ptlrpc_request *req,
72 out_reconstruct_t reconstruct,
73 struct object_update_reply *reply,
76 if (likely(!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT)))
79 if (req_xid_is_last(req)) {
80 struct lsd_client_data *lcd;
82 /* XXX this does not support mulitple transactions yet, i.e.
83 * only 1 update RPC each time betwee MDTs */
84 lcd = req->rq_export->exp_target_data.ted_lcd;
86 req->rq_transno = lcd->lcd_last_transno;
87 req->rq_status = lcd->lcd_last_result;
88 if (req->rq_status != 0)
90 lustre_msg_set_transno(req->rq_repmsg, req->rq_transno);
91 lustre_msg_set_status(req->rq_repmsg, req->rq_status);
93 DEBUG_REQ(D_RPCTRACE, req, "restoring resent RPC");
95 reconstruct(env, dt, obj, reply, index);
98 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have %lld)",
99 req->rq_export->exp_target_data.ted_lcd->lcd_last_xid);
103 static int out_create(struct tgt_session_info *tsi)
105 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
106 struct object_update *update = tti->tti_u.update.tti_update;
107 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
108 struct dt_object_format *dof = &tti->tti_u.update.tti_update_dof;
109 struct obdo *lobdo = &tti->tti_u.update.tti_obdo;
110 struct lu_attr *attr = &tti->tti_attr;
111 struct lu_fid *fid = NULL;
118 wobdo = object_update_param_get(update, 0, &size);
119 if (IS_ERR(wobdo) || size != sizeof(*wobdo)) {
120 CERROR("%s: obdo is NULL, invalid RPC: rc = %ld\n",
121 tgt_name(tsi->tsi_tgt), PTR_ERR(wobdo));
122 RETURN(PTR_ERR(wobdo));
125 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
126 lustre_swab_obdo(wobdo);
127 lustre_get_wire_obdo(NULL, lobdo, wobdo);
128 la_from_obdo(attr, lobdo, lobdo->o_valid);
130 dof->dof_type = dt_mode_to_dft(attr->la_mode);
131 if (update->ou_params_count > 1) {
132 fid = object_update_param_get(update, 1, &size);
133 if (IS_ERR(fid) || size != sizeof(*fid)) {
134 CERROR("%s: invalid fid: rc = %ld\n",
135 tgt_name(tsi->tsi_tgt), PTR_ERR(fid));
136 RETURN(PTR_ERR(fid));
138 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
139 lustre_swab_lu_fid(fid);
140 if (!fid_is_sane(fid)) {
141 CERROR("%s: invalid fid "DFID": rc = %d\n",
142 tgt_name(tsi->tsi_tgt), PFID(fid), -EPROTO);
147 if (lu_object_exists(&obj->do_lu))
150 rc = out_tx_create(tsi->tsi_env, obj, attr, fid, dof,
151 &tti->tti_tea, tti->tti_tea.ta_handle,
152 tti->tti_u.update.tti_update_reply,
153 tti->tti_u.update.tti_update_reply_index);
158 static int out_attr_set(struct tgt_session_info *tsi)
160 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
161 struct object_update *update = tti->tti_u.update.tti_update;
162 struct lu_attr *attr = &tti->tti_attr;
163 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
164 struct obdo *lobdo = &tti->tti_u.update.tti_obdo;
171 wobdo = object_update_param_get(update, 0, &size);
172 if (IS_ERR(wobdo) || size != sizeof(*wobdo)) {
173 CERROR("%s: empty obdo in the update: rc = %ld\n",
174 tgt_name(tsi->tsi_tgt), PTR_ERR(wobdo));
175 RETURN(PTR_ERR(wobdo));
181 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
182 lustre_swab_obdo(wobdo);
183 lustre_get_wire_obdo(NULL, lobdo, wobdo);
184 la_from_obdo(attr, lobdo, lobdo->o_valid);
186 rc = out_tx_attr_set(tsi->tsi_env, obj, attr, &tti->tti_tea,
187 tti->tti_tea.ta_handle,
188 tti->tti_u.update.tti_update_reply,
189 tti->tti_u.update.tti_update_reply_index);
194 static int out_attr_get(struct tgt_session_info *tsi)
196 const struct lu_env *env = tsi->tsi_env;
197 struct tgt_thread_info *tti = tgt_th_info(env);
198 struct object_update *update = tti->tti_u.update.tti_update;
199 struct obdo *obdo = &tti->tti_u.update.tti_obdo;
200 struct lu_attr *la = &tti->tti_attr;
201 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
202 int idx = tti->tti_u.update.tti_update_reply_index;
207 if (unlikely(update->ou_result_size < sizeof(*obdo)))
210 if (!lu_object_exists(&obj->do_lu)) {
211 /* Usually, this will be called when the master MDT try
212 * to init a remote object(see osp_object_init), so if
213 * the object does not exist on slave, we need set BANSHEE flag,
214 * so the object can be removed from the cache immediately */
215 set_bit(LU_OBJECT_HEARD_BANSHEE,
216 &obj->do_lu.lo_header->loh_flags);
220 dt_read_lock(env, obj, MOR_TGT_CHILD);
221 rc = dt_attr_get(env, obj, la);
223 GOTO(out_unlock, rc);
226 obdo_from_la(obdo, la, la->la_valid);
227 lustre_set_wire_obdo(NULL, obdo, obdo);
230 dt_read_unlock(env, obj);
232 CDEBUG(D_INFO, "%s: insert attr get reply %p index %d: rc = %d\n",
233 tgt_name(tsi->tsi_tgt), tti->tti_u.update.tti_update_reply,
236 object_update_result_insert(tti->tti_u.update.tti_update_reply, obdo,
237 sizeof(*obdo), idx, rc);
242 static int out_xattr_get(struct tgt_session_info *tsi)
244 const struct lu_env *env = tsi->tsi_env;
245 struct tgt_thread_info *tti = tgt_th_info(env);
246 struct object_update *update = tti->tti_u.update.tti_update;
247 struct lu_buf *lbuf = &tti->tti_buf;
248 struct object_update_reply *reply = tti->tti_u.update.tti_update_reply;
249 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
251 struct object_update_result *update_result;
252 int idx = tti->tti_u.update.tti_update_reply_index;
257 if (!lu_object_exists(&obj->do_lu)) {
258 set_bit(LU_OBJECT_HEARD_BANSHEE,
259 &obj->do_lu.lo_header->loh_flags);
263 name = object_update_param_get(update, 0, NULL);
265 CERROR("%s: empty name for xattr get: rc = %ld\n",
266 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
267 RETURN(PTR_ERR(name));
270 update_result = object_update_result_get(reply, 0, NULL);
271 if (update_result == NULL) {
272 CERROR("%s: empty name for xattr get: rc = %d\n",
273 tgt_name(tsi->tsi_tgt), -EPROTO);
277 lbuf->lb_len = (int)tti->tti_u.update.tti_update->ou_result_size;
278 lbuf->lb_buf = update_result->our_data;
279 if (lbuf->lb_len == 0)
281 dt_read_lock(env, obj, MOR_TGT_CHILD);
282 rc = dt_xattr_get(env, obj, lbuf, name);
283 dt_read_unlock(env, obj);
286 CDEBUG(D_INFO, "%s: "DFID" get xattr %s len %d\n",
287 tgt_name(tsi->tsi_tgt), PFID(lu_object_fid(&obj->do_lu)),
288 name, (int)lbuf->lb_len);
293 object_update_result_insert(reply, lbuf->lb_buf, lbuf->lb_len, idx, rc);
297 static int out_index_lookup(struct tgt_session_info *tsi)
299 const struct lu_env *env = tsi->tsi_env;
300 struct tgt_thread_info *tti = tgt_th_info(env);
301 struct object_update *update = tti->tti_u.update.tti_update;
302 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
308 if (unlikely(update->ou_result_size < sizeof(tti->tti_fid1)))
311 if (!lu_object_exists(&obj->do_lu))
314 name = object_update_param_get(update, 0, NULL);
316 CERROR("%s: empty name for lookup: rc = %ld\n",
317 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
318 RETURN(PTR_ERR(name));
321 dt_read_lock(env, obj, MOR_TGT_CHILD);
322 if (!dt_try_as_dir(env, obj))
323 GOTO(out_unlock, rc = -ENOTDIR);
325 rc = dt_lookup(env, obj, (struct dt_rec *)&tti->tti_fid1,
326 (struct dt_key *)name);
329 GOTO(out_unlock, rc);
335 dt_read_unlock(env, obj);
337 CDEBUG(D_INFO, "lookup "DFID" %s get "DFID" rc %d\n",
338 PFID(lu_object_fid(&obj->do_lu)), name,
339 PFID(&tti->tti_fid1), rc);
341 CDEBUG(D_INFO, "%s: insert lookup reply %p index %d: rc = %d\n",
342 tgt_name(tsi->tsi_tgt), tti->tti_u.update.tti_update_reply,
345 object_update_result_insert(tti->tti_u.update.tti_update_reply,
346 &tti->tti_fid1, sizeof(tti->tti_fid1),
347 tti->tti_u.update.tti_update_reply_index, rc);
351 static int out_xattr_set(struct tgt_session_info *tsi)
353 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
354 struct object_update *update = tti->tti_u.update.tti_update;
355 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
356 struct lu_buf *lbuf = &tti->tti_buf;
366 name = object_update_param_get(update, 0, NULL);
368 CERROR("%s: empty name for xattr set: rc = %ld\n",
369 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
370 RETURN(PTR_ERR(name));
373 /* If buffer == NULL (-ENODATA), then it might mean delete xattr */
374 buf = object_update_param_get(update, 1, &buf_len);
375 if (IS_ERR(buf) && PTR_ERR(buf) != -ENODATA)
376 RETURN(PTR_ERR(buf));
379 lbuf->lb_len = buf_len;
381 tmp = object_update_param_get(update, 2, &size);
382 if (IS_ERR(tmp) || size != sizeof(*tmp)) {
383 CERROR("%s: emptry or wrong size %zu flag: rc = %ld\n",
384 tgt_name(tsi->tsi_tgt), size, PTR_ERR(tmp));
385 RETURN(PTR_ERR(tmp));
388 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
392 rc = out_tx_xattr_set(tsi->tsi_env, obj, lbuf, name, flag,
393 &tti->tti_tea, tti->tti_tea.ta_handle,
394 tti->tti_u.update.tti_update_reply,
395 tti->tti_u.update.tti_update_reply_index);
399 static int out_xattr_del(struct tgt_session_info *tsi)
401 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
402 struct object_update *update = tti->tti_u.update.tti_update;
403 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
408 name = object_update_param_get(update, 0, NULL);
410 CERROR("%s: empty name for xattr set: rc = %ld\n",
411 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
412 RETURN(PTR_ERR(name));
415 rc = out_tx_xattr_del(tsi->tsi_env, obj, name, &tti->tti_tea,
416 tti->tti_tea.ta_handle,
417 tti->tti_u.update.tti_update_reply,
418 tti->tti_u.update.tti_update_reply_index);
423 * increase ref of the object
425 static int out_ref_add(struct tgt_session_info *tsi)
427 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
428 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
433 rc = out_tx_ref_add(tsi->tsi_env, obj, &tti->tti_tea,
434 tti->tti_tea.ta_handle,
435 tti->tti_u.update.tti_update_reply,
436 tti->tti_u.update.tti_update_reply_index);
440 static int out_ref_del(struct tgt_session_info *tsi)
442 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
443 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
448 if (!lu_object_exists(&obj->do_lu))
451 rc = out_tx_ref_del(tsi->tsi_env, obj, &tti->tti_tea,
452 tti->tti_tea.ta_handle,
453 tti->tti_u.update.tti_update_reply,
454 tti->tti_u.update.tti_update_reply_index);
458 static int out_index_insert(struct tgt_session_info *tsi)
460 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
461 struct object_update *update = tti->tti_u.update.tti_update;
462 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
463 struct dt_insert_rec *rec = &tti->tti_rec;
471 name = object_update_param_get(update, 0, NULL);
473 CERROR("%s: empty name for index insert: rc = %ld\n",
474 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
475 RETURN(PTR_ERR(name));
478 fid = object_update_param_get(update, 1, &size);
479 if (IS_ERR(fid) || size != sizeof(*fid)) {
480 CERROR("%s: invalid fid: rc = %ld\n",
481 tgt_name(tsi->tsi_tgt), PTR_ERR(fid));
482 RETURN(PTR_ERR(fid));
485 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
486 lustre_swab_lu_fid(fid);
488 if (!fid_is_sane(fid)) {
489 CERROR("%s: invalid FID "DFID": rc = %d\n",
490 tgt_name(tsi->tsi_tgt), PFID(fid), -EPROTO);
494 ptype = object_update_param_get(update, 2, &size);
495 if (IS_ERR(ptype) || size != sizeof(*ptype)) {
496 CERROR("%s: invalid type for index insert: rc = %ld\n",
497 tgt_name(tsi->tsi_tgt), PTR_ERR(ptype));
498 RETURN(PTR_ERR(ptype));
501 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
505 rec->rec_type = *ptype;
507 rc = out_tx_index_insert(tsi->tsi_env, obj, (const struct dt_rec *)rec,
508 (const struct dt_key *)name, &tti->tti_tea,
509 tti->tti_tea.ta_handle,
510 tti->tti_u.update.tti_update_reply,
511 tti->tti_u.update.tti_update_reply_index);
515 static int out_index_delete(struct tgt_session_info *tsi)
517 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
518 struct object_update *update = tti->tti_u.update.tti_update;
519 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
523 if (!lu_object_exists(&obj->do_lu))
526 name = object_update_param_get(update, 0, NULL);
528 CERROR("%s: empty name for index delete: rc = %ld\n",
529 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
530 RETURN(PTR_ERR(name));
533 rc = out_tx_index_delete(tsi->tsi_env, obj, (const struct dt_key *)name,
534 &tti->tti_tea, tti->tti_tea.ta_handle,
535 tti->tti_u.update.tti_update_reply,
536 tti->tti_u.update.tti_update_reply_index);
540 static int out_destroy(struct tgt_session_info *tsi)
542 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
543 struct object_update *update = tti->tti_u.update.tti_update;
544 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
549 fid = &update->ou_fid;
550 if (!fid_is_sane(fid)) {
551 CERROR("%s: invalid FID "DFID": rc = %d\n",
552 tgt_name(tsi->tsi_tgt), PFID(fid), -EPROTO);
556 if (!lu_object_exists(&obj->do_lu))
559 rc = out_tx_destroy(tsi->tsi_env, obj, &tti->tti_tea,
560 tti->tti_tea.ta_handle,
561 tti->tti_u.update.tti_update_reply,
562 tti->tti_u.update.tti_update_reply_index);
567 static int out_write(struct tgt_session_info *tsi)
569 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
570 struct object_update *update = tti->tti_u.update.tti_update;
571 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
572 struct lu_buf *lbuf = &tti->tti_buf;
581 buf = object_update_param_get(update, 0, &buf_len);
582 if (IS_ERR(buf) || buf_len == 0) {
583 CERROR("%s: empty buf for xattr set: rc = %ld\n",
584 tgt_name(tsi->tsi_tgt), PTR_ERR(buf));
585 RETURN(PTR_ERR(buf));
588 lbuf->lb_len = buf_len;
590 tmp = object_update_param_get(update, 1, &size);
591 if (IS_ERR(tmp) || size != sizeof(*tmp)) {
592 CERROR("%s: empty or wrong size %zu pos: rc = %ld\n",
593 tgt_name(tsi->tsi_tgt), size, PTR_ERR(tmp));
594 RETURN(PTR_ERR(tmp));
597 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
601 rc = out_tx_write(tsi->tsi_env, obj, lbuf, pos,
602 &tti->tti_tea, tti->tti_tea.ta_handle,
603 tti->tti_u.update.tti_update_reply,
604 tti->tti_u.update.tti_update_reply_index);
608 static int out_read(struct tgt_session_info *tsi)
610 const struct lu_env *env = tsi->tsi_env;
611 struct tgt_thread_info *tti = tgt_th_info(env);
612 struct object_update *update = tti->tti_u.update.tti_update;
613 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
614 struct object_update_reply *reply = tti->tti_u.update.tti_update_reply;
615 int index = tti->tti_u.update.tti_update_reply_index;
616 struct lu_rdbuf *rdbuf;
617 struct object_update_result *update_result;
618 struct out_read_reply *orr;
621 size_t total_size = 0;
628 update_result = object_update_result_get(reply, index, NULL);
629 LASSERT(update_result != NULL);
630 update_result->our_datalen = sizeof(*orr);
632 if (!lu_object_exists(&obj->do_lu))
633 GOTO(out, rc = -ENOENT);
635 tmp = object_update_param_get(update, 0, NULL);
637 CERROR("%s: empty size for read: rc = %ld\n",
638 tgt_name(tsi->tsi_tgt), PTR_ERR(tmp));
639 GOTO(out, rc = PTR_ERR(tmp));
641 size = le64_to_cpu(*(size_t *)(tmp));
643 tmp = object_update_param_get(update, 1, NULL);
645 CERROR("%s: empty pos for read: rc = %ld\n",
646 tgt_name(tsi->tsi_tgt), PTR_ERR(tmp));
647 GOTO(out, rc = PTR_ERR(tmp));
649 pos = le64_to_cpu(*(__u64 *)(tmp));
651 /* Put the offset into the begining of the buffer in reply */
652 orr = (struct out_read_reply *)update_result->our_data;
654 nbufs = (size + OUT_BULK_BUFFER_SIZE - 1) / OUT_BULK_BUFFER_SIZE;
655 OBD_ALLOC(rdbuf, sizeof(struct lu_rdbuf) +
656 nbufs * sizeof(rdbuf->rb_bufs[0]));
658 GOTO(out, rc = -ENOMEM);
662 for (i = 0; i < nbufs; i++) {
665 read_size = size > OUT_BULK_BUFFER_SIZE ?
666 OUT_BULK_BUFFER_SIZE : size;
667 OBD_ALLOC(rdbuf->rb_bufs[i].lb_buf, read_size);
668 if (rdbuf->rb_bufs[i].lb_buf == NULL)
669 GOTO(out_free, rc = -ENOMEM);
671 rdbuf->rb_bufs[i].lb_len = read_size;
672 dt_read_lock(env, obj, MOR_TGT_CHILD);
673 rc = dt_read(env, obj, &rdbuf->rb_bufs[i], &pos);
674 dt_read_unlock(env, obj);
676 total_size += rc < 0 ? 0 : rc;
684 /* send pages to client */
685 rc = tgt_send_buffer(tsi, rdbuf);
689 orr->orr_size = total_size;
690 orr->orr_offset = pos;
692 orr_cpu_to_le(orr, orr);
693 update_result->our_datalen += orr->orr_size;
695 for (i = 0; i < nbufs; i++) {
696 if (rdbuf->rb_bufs[i].lb_buf != NULL) {
697 OBD_FREE(rdbuf->rb_bufs[i].lb_buf,
698 rdbuf->rb_bufs[i].lb_len);
701 OBD_FREE(rdbuf, sizeof(struct lu_rdbuf) +
702 nbufs * sizeof(rdbuf->rb_bufs[0]));
704 /* Insert read buffer */
705 update_result->our_rc = ptlrpc_status_hton(rc);
706 reply->ourp_lens[index] = cfs_size_round(update_result->our_datalen +
707 sizeof(*update_result));
711 static int out_noop(struct tgt_session_info *tsi)
716 #define DEF_OUT_HNDL(opc, name, flags, fn) \
717 [opc - OUT_CREATE] = { \
727 static struct tgt_handler out_update_ops[] = {
728 DEF_OUT_HNDL(OUT_CREATE, "out_create", MUTABOR | HABEO_REFERO,
730 DEF_OUT_HNDL(OUT_DESTROY, "out_create", MUTABOR | HABEO_REFERO,
732 DEF_OUT_HNDL(OUT_REF_ADD, "out_ref_add", MUTABOR | HABEO_REFERO,
734 DEF_OUT_HNDL(OUT_REF_DEL, "out_ref_del", MUTABOR | HABEO_REFERO,
736 DEF_OUT_HNDL(OUT_ATTR_SET, "out_attr_set", MUTABOR | HABEO_REFERO,
738 DEF_OUT_HNDL(OUT_ATTR_GET, "out_attr_get", HABEO_REFERO,
740 DEF_OUT_HNDL(OUT_XATTR_SET, "out_xattr_set", MUTABOR | HABEO_REFERO,
742 DEF_OUT_HNDL(OUT_XATTR_DEL, "out_xattr_del", MUTABOR | HABEO_REFERO,
744 DEF_OUT_HNDL(OUT_XATTR_GET, "out_xattr_get", HABEO_REFERO,
746 DEF_OUT_HNDL(OUT_INDEX_LOOKUP, "out_index_lookup", HABEO_REFERO,
748 DEF_OUT_HNDL(OUT_INDEX_INSERT, "out_index_insert",
749 MUTABOR | HABEO_REFERO, out_index_insert),
750 DEF_OUT_HNDL(OUT_INDEX_DELETE, "out_index_delete",
751 MUTABOR | HABEO_REFERO, out_index_delete),
752 DEF_OUT_HNDL(OUT_WRITE, "out_write", MUTABOR | HABEO_REFERO, out_write),
753 DEF_OUT_HNDL(OUT_READ, "out_read", HABEO_REFERO, out_read),
754 DEF_OUT_HNDL(OUT_NOOP, "out_noop", HABEO_REFERO, out_noop),
757 static struct tgt_handler *out_handler_find(__u32 opc)
759 struct tgt_handler *h;
762 if (OUT_CREATE <= opc && opc < OUT_LAST) {
763 h = &out_update_ops[opc - OUT_CREATE];
764 LASSERTF(h->th_opc == opc, "opcode mismatch %d != %d\n",
767 h = NULL; /* unsupported opc */
772 static int out_tx_start(const struct lu_env *env, struct dt_device *dt,
773 struct thandle_exec_args *ta, struct obd_export *exp)
776 ta->ta_handle = dt_trans_create(env, dt);
777 if (IS_ERR(ta->ta_handle)) {
780 rc = PTR_ERR(ta->ta_handle);
781 ta->ta_handle = NULL;
782 CERROR("%s: start handle error: rc = %d\n", dt_obd_name(dt),
786 if (exp->exp_need_sync)
787 ta->ta_handle->th_sync = 1;
792 static int out_trans_start(const struct lu_env *env,
793 struct thandle_exec_args *ta)
795 return dt_trans_start(env, ta->ta_handle->th_dev, ta->ta_handle);
798 static int out_trans_stop(const struct lu_env *env,
799 struct thandle_exec_args *ta, int err)
804 ta->ta_handle->th_result = err;
805 rc = dt_trans_stop(env, ta->ta_handle->th_dev, ta->ta_handle);
806 for (i = 0; i < ta->ta_argno; i++) {
807 if (ta->ta_args[i]->object != NULL) {
808 struct dt_object *obj = ta->ta_args[i]->object;
810 /* If the object is being created during this
811 * transaction, we need to remove them from the
812 * cache immediately, because a few layers are
813 * missing in OUT handler, i.e. the object might
814 * not be initialized in all layers */
815 if (ta->ta_args[i]->exec_fn == out_tx_create_exec)
816 set_bit(LU_OBJECT_HEARD_BANSHEE,
817 &obj->do_lu.lo_header->loh_flags);
818 lu_object_put(env, &ta->ta_args[i]->object->do_lu);
819 ta->ta_args[i]->object = NULL;
822 ta->ta_handle = NULL;
828 static int out_tx_end(const struct lu_env *env, struct thandle_exec_args *ta,
831 struct tgt_session_info *tsi = tgt_ses_info(env);
837 if (ta->ta_handle == NULL)
840 if (declare_ret != 0 || ta->ta_argno == 0)
841 GOTO(stop, rc = declare_ret);
843 LASSERT(ta->ta_handle->th_dev != NULL);
844 rc = out_trans_start(env, ta);
845 if (unlikely(rc != 0))
848 for (i = 0; i < ta->ta_argno; i++) {
849 rc = ta->ta_args[i]->exec_fn(env, ta->ta_handle,
851 if (unlikely(rc != 0)) {
852 CDEBUG(D_INFO, "error during execution of #%u from"
853 " %s:%d: rc = %d\n", i, ta->ta_args[i]->file,
854 ta->ta_args[i]->line, rc);
856 if (ta->ta_args[i]->undo_fn != NULL)
857 ta->ta_args[i]->undo_fn(env,
861 CERROR("%s: undo for %s:%d: rc = %d\n",
862 dt_obd_name(ta->ta_handle->th_dev),
863 ta->ta_args[i]->file,
864 ta->ta_args[i]->line, -ENOTSUPP);
868 CDEBUG(D_INFO, "%s: executed %u/%u: rc = %d\n",
869 dt_obd_name(ta->ta_handle->th_dev), i, ta->ta_argno, rc);
872 /* Only fail for real updates, XXX right now llog updates will be
873 * ignore, whose updates count is usually 1, so failover test
874 * case will spot this FAIL_UPDATE_NET_REP precisely, and it will
875 * be removed after async update patch is landed. */
876 if (ta->ta_argno > 1)
877 tsi->tsi_reply_fail_id = OBD_FAIL_OUT_UPDATE_NET_REP;
880 rc1 = out_trans_stop(env, ta, rc);
884 ta->ta_handle = NULL;
891 * Object updates between Targets. Because all the updates has been
892 * dis-assemblied into object updates at sender side, so OUT will
893 * call OSD API directly to execute these updates.
895 * In DNE phase I all of the updates in the request need to be executed
896 * in one transaction, and the transaction has to be synchronously.
898 * Please refer to lustre/include/lustre/lustre_idl.h for req/reply
901 int out_handle(struct tgt_session_info *tsi)
903 const struct lu_env *env = tsi->tsi_env;
904 struct tgt_thread_info *tti = tgt_th_info(env);
905 struct thandle_exec_args *ta = &tti->tti_tea;
906 struct req_capsule *pill = tsi->tsi_pill;
907 struct dt_device *dt = tsi->tsi_tgt->lut_bottom;
908 struct out_update_header *ouh;
909 struct out_update_buffer *oub = NULL;
910 struct object_update *update;
911 struct object_update_reply *reply;
912 struct ptlrpc_bulk_desc *desc = NULL;
913 struct l_wait_info lwi;
915 int current_batchid = -1;
916 __u32 update_buf_count;
918 unsigned int reply_index = 0;
921 int ouh_size, reply_size;
925 req_capsule_set(pill, &RQF_OUT_UPDATE);
926 ouh_size = req_capsule_get_size(pill, &RMF_OUT_UPDATE_HEADER,
929 RETURN(err_serious(-EPROTO));
931 ouh = req_capsule_client_get(pill, &RMF_OUT_UPDATE_HEADER);
933 RETURN(err_serious(-EPROTO));
935 if (ouh->ouh_magic != OUT_UPDATE_HEADER_MAGIC) {
936 CERROR("%s: invalid update buffer magic %x expect %x: "
937 "rc = %d\n", tgt_name(tsi->tsi_tgt), ouh->ouh_magic,
938 UPDATE_REQUEST_MAGIC, -EPROTO);
939 RETURN(err_serious(-EPROTO));
942 update_buf_count = ouh->ouh_count;
943 if (update_buf_count == 0)
944 RETURN(err_serious(-EPROTO));
946 OBD_ALLOC(update_bufs, sizeof(*update_bufs) * update_buf_count);
947 if (update_bufs == NULL)
948 RETURN(err_serious(-ENOMEM));
950 if (ouh->ouh_inline_length > 0) {
951 update_bufs[0] = ouh->ouh_inline_data;
953 struct out_update_buffer *tmp;
955 oub = req_capsule_client_get(pill, &RMF_OUT_UPDATE_BUF);
957 GOTO(out_free, rc = err_serious(-EPROTO));
959 desc = ptlrpc_prep_bulk_exp(pill->rc_req, update_buf_count,
960 PTLRPC_BULK_OPS_COUNT,
961 PTLRPC_BULK_GET_SINK |
962 PTLRPC_BULK_BUF_KVEC,
964 &ptlrpc_bulk_kvec_ops);
966 GOTO(out_free, rc = err_serious(-ENOMEM));
969 for (i = 0; i < update_buf_count; i++, tmp++) {
970 if (tmp->oub_size >= OUT_MAXREQSIZE)
971 GOTO(out_free, rc = err_serious(-EPROTO));
973 OBD_ALLOC(update_bufs[i], tmp->oub_size);
974 if (update_bufs[i] == NULL)
975 GOTO(out_free, rc = err_serious(-ENOMEM));
977 desc->bd_frag_ops->add_iov_frag(desc, update_bufs[i],
981 pill->rc_req->rq_bulk_write = 1;
982 rc = sptlrpc_svc_prep_bulk(pill->rc_req, desc);
984 GOTO(out_free, rc = err_serious(rc));
986 rc = target_bulk_io(pill->rc_req->rq_export, desc, &lwi);
988 GOTO(out_free, rc = err_serious(rc));
990 /* validate the request and calculate the total update count and
994 for (i = 0; i < update_buf_count; i++) {
995 struct object_update_request *our;
998 our = update_bufs[i];
999 if (ptlrpc_req_need_swab(pill->rc_req))
1000 lustre_swab_object_update_request(our);
1002 if (our->ourq_magic != UPDATE_REQUEST_MAGIC) {
1003 CERROR("%s: invalid update buffer magic %x"
1004 " expect %x: rc = %d\n",
1005 tgt_name(tsi->tsi_tgt), our->ourq_magic,
1006 UPDATE_REQUEST_MAGIC, -EPROTO);
1007 GOTO(out_free, rc = err_serious(-EPROTO));
1009 updates += our->ourq_count;
1011 /* need to calculate reply size */
1012 for (j = 0; j < our->ourq_count; j++) {
1013 update = object_update_request_get(our, j, NULL);
1015 GOTO(out, rc = err_serious(-EPROTO));
1016 if (ptlrpc_req_need_swab(pill->rc_req))
1017 lustre_swab_object_update(update);
1019 if (!fid_is_sane(&update->ou_fid)) {
1020 CERROR("%s: invalid FID "DFID": rc = %d\n",
1021 tgt_name(tsi->tsi_tgt),
1022 PFID(&update->ou_fid), -EPROTO);
1023 GOTO(out, rc = err_serious(-EPROTO));
1026 /* XXX: what ou_result_size can be considered safe? */
1028 reply_size += sizeof(reply->ourp_lens[0]);
1029 reply_size += sizeof(struct object_update_result);
1030 reply_size += update->ou_result_size;
1033 reply_size += sizeof(*reply);
1035 if (unlikely(reply_size > ouh->ouh_reply_size)) {
1036 CERROR("%s: too small reply buf %u for %u, need %u at least\n",
1037 tgt_name(tsi->tsi_tgt), ouh->ouh_reply_size,
1038 updates, reply_size);
1039 GOTO(out_free, rc = err_serious(-EPROTO));
1042 req_capsule_set_size(pill, &RMF_OUT_UPDATE_REPLY, RCL_SERVER,
1043 ouh->ouh_reply_size);
1044 rc = req_capsule_server_pack(pill);
1046 CERROR("%s: Can't pack response: rc = %d\n",
1047 tgt_name(tsi->tsi_tgt), rc);
1048 GOTO(out_free, rc = err_serious(-EPROTO));
1051 /* Prepare the update reply buffer */
1052 reply = req_capsule_server_get(pill, &RMF_OUT_UPDATE_REPLY);
1054 GOTO(out_free, rc = -EPROTO);
1055 reply->ourp_magic = UPDATE_REPLY_MAGIC;
1056 reply->ourp_count = updates;
1057 tti->tti_u.update.tti_update_reply = reply;
1058 tti->tti_mult_trans = !req_is_replay(tgt_ses_req(tsi));
1060 /* Walk through updates in the request to execute them */
1061 for (i = 0; i < update_buf_count; i++) {
1062 struct tgt_handler *h;
1063 struct dt_object *dt_obj;
1065 struct object_update_request *our;
1068 our = update_bufs[i];
1069 update_count = our->ourq_count;
1070 for (j = 0; j < update_count; j++) {
1071 struct lu_object_conf conf;
1073 update = object_update_request_get(our, j, NULL);
1074 if (update->ou_type == OUT_CREATE)
1075 conf.loc_flags = LOC_F_NEW;
1079 dt_obj = dt_locate_at(env, dt, &update->ou_fid,
1080 dt->dd_lu_dev.ld_site->ls_top_dev, &conf);
1082 GOTO(out, rc = PTR_ERR(dt_obj));
1084 if (dt->dd_record_fid_accessed) {
1085 lfsck_pack_rfa(&tti->tti_lr,
1086 lu_object_fid(&dt_obj->do_lu),
1089 tgt_lfsck_in_notify(env, dt, &tti->tti_lr,
1093 tti->tti_u.update.tti_dt_object = dt_obj;
1094 tti->tti_u.update.tti_update = update;
1095 tti->tti_u.update.tti_update_reply_index = reply_index;
1097 h = out_handler_find(update->ou_type);
1098 if (unlikely(h == NULL)) {
1099 CERROR("%s: unsupported opc: 0x%x\n",
1100 tgt_name(tsi->tsi_tgt), update->ou_type);
1101 GOTO(next, rc = -ENOTSUPP);
1104 /* Check resend case only for modifying RPC */
1105 if (h->th_flags & MUTABOR) {
1106 struct ptlrpc_request *req = tgt_ses_req(tsi);
1108 if (out_check_resent(env, dt, dt_obj, req,
1109 out_reconstruct, reply,
1114 /* start transaction for modification RPC only */
1115 if (h->th_flags & MUTABOR && current_batchid == -1) {
1116 current_batchid = update->ou_batchid;
1117 rc = out_tx_start(env, dt, ta, tsi->tsi_exp);
1121 if (update->ou_flags & UPDATE_FL_SYNC)
1122 ta->ta_handle->th_sync = 1;
1125 /* Stop the current update transaction, if the update
1126 * has different batchid, or read-only update */
1127 if (((current_batchid != update->ou_batchid) ||
1128 !(h->th_flags & MUTABOR)) &&
1129 ta->ta_handle != NULL) {
1130 rc = out_tx_end(env, ta, rc);
1131 current_batchid = -1;
1135 /* start a new transaction if needed */
1136 if (h->th_flags & MUTABOR) {
1137 rc = out_tx_start(env, dt, ta,
1141 if (update->ou_flags & UPDATE_FL_SYNC)
1142 ta->ta_handle->th_sync = 1;
1143 current_batchid = update->ou_batchid;
1147 rc = h->th_act(tsi);
1150 lu_object_put(env, &dt_obj->do_lu);
1156 if (current_batchid != -1) {
1157 rc1 = out_tx_end(env, ta, rc);
1163 if (update_bufs != NULL) {
1165 for (i = 0; i < update_buf_count; i++, oub++) {
1166 if (update_bufs[i] != NULL)
1167 OBD_FREE(update_bufs[i], oub->oub_size);
1171 OBD_FREE(update_bufs, sizeof(*update_bufs) * update_buf_count);
1175 ptlrpc_free_bulk(desc);
1180 struct tgt_handler tgt_out_handlers[] = {
1181 TGT_UPDATE_HDL(MUTABOR, OUT_UPDATE, out_handle),
1183 EXPORT_SYMBOL(tgt_out_handlers);