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, 2016, 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);
288 } else if (lbuf->lb_buf) {
292 CDEBUG(D_INFO, "%s: "DFID" get xattr %s len %d: rc = %d\n",
293 tgt_name(tsi->tsi_tgt), PFID(lu_object_fid(&obj->do_lu)),
294 name, (int)lbuf->lb_len, rc);
296 object_update_result_insert(reply, lbuf->lb_buf, lbuf->lb_len, idx, rc);
300 static int out_index_lookup(struct tgt_session_info *tsi)
302 const struct lu_env *env = tsi->tsi_env;
303 struct tgt_thread_info *tti = tgt_th_info(env);
304 struct object_update *update = tti->tti_u.update.tti_update;
305 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
311 if (unlikely(update->ou_result_size < sizeof(tti->tti_fid1)))
314 if (!lu_object_exists(&obj->do_lu))
317 name = object_update_param_get(update, 0, NULL);
319 CERROR("%s: empty name for lookup: rc = %ld\n",
320 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
321 RETURN(PTR_ERR(name));
324 dt_read_lock(env, obj, MOR_TGT_CHILD);
325 if (!dt_try_as_dir(env, obj))
326 GOTO(out_unlock, rc = -ENOTDIR);
328 rc = dt_lookup(env, obj, (struct dt_rec *)&tti->tti_fid1,
329 (struct dt_key *)name);
332 GOTO(out_unlock, rc);
338 dt_read_unlock(env, obj);
340 CDEBUG(D_INFO, "lookup "DFID" %s get "DFID" rc %d\n",
341 PFID(lu_object_fid(&obj->do_lu)), name,
342 PFID(&tti->tti_fid1), rc);
344 CDEBUG(D_INFO, "%s: insert lookup reply %p index %d: rc = %d\n",
345 tgt_name(tsi->tsi_tgt), tti->tti_u.update.tti_update_reply,
348 object_update_result_insert(tti->tti_u.update.tti_update_reply,
349 &tti->tti_fid1, sizeof(tti->tti_fid1),
350 tti->tti_u.update.tti_update_reply_index, rc);
354 static int out_xattr_set(struct tgt_session_info *tsi)
356 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
357 struct object_update *update = tti->tti_u.update.tti_update;
358 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
359 struct lu_buf *lbuf = &tti->tti_buf;
369 name = object_update_param_get(update, 0, NULL);
371 CERROR("%s: empty name for xattr set: rc = %ld\n",
372 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
373 RETURN(PTR_ERR(name));
376 /* If buffer == NULL (-ENODATA), then it might mean delete xattr */
377 buf = object_update_param_get(update, 1, &buf_len);
378 if (IS_ERR(buf) && PTR_ERR(buf) != -ENODATA)
379 RETURN(PTR_ERR(buf));
382 lbuf->lb_len = buf_len;
384 tmp = object_update_param_get(update, 2, &size);
385 if (IS_ERR(tmp) || size != sizeof(*tmp)) {
386 CERROR("%s: emptry or wrong size %zu flag: rc = %ld\n",
387 tgt_name(tsi->tsi_tgt), size, PTR_ERR(tmp));
388 RETURN(PTR_ERR(tmp));
391 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
395 rc = out_tx_xattr_set(tsi->tsi_env, obj, lbuf, name, flag,
396 &tti->tti_tea, tti->tti_tea.ta_handle,
397 tti->tti_u.update.tti_update_reply,
398 tti->tti_u.update.tti_update_reply_index);
402 static int out_xattr_del(struct tgt_session_info *tsi)
404 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
405 struct object_update *update = tti->tti_u.update.tti_update;
406 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
411 name = object_update_param_get(update, 0, NULL);
413 CERROR("%s: empty name for xattr set: rc = %ld\n",
414 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
415 RETURN(PTR_ERR(name));
418 rc = out_tx_xattr_del(tsi->tsi_env, obj, name, &tti->tti_tea,
419 tti->tti_tea.ta_handle,
420 tti->tti_u.update.tti_update_reply,
421 tti->tti_u.update.tti_update_reply_index);
426 * increase ref of the object
428 static int out_ref_add(struct tgt_session_info *tsi)
430 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
431 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
436 rc = out_tx_ref_add(tsi->tsi_env, obj, &tti->tti_tea,
437 tti->tti_tea.ta_handle,
438 tti->tti_u.update.tti_update_reply,
439 tti->tti_u.update.tti_update_reply_index);
443 static int out_ref_del(struct tgt_session_info *tsi)
445 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
446 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
451 if (!lu_object_exists(&obj->do_lu))
454 rc = out_tx_ref_del(tsi->tsi_env, obj, &tti->tti_tea,
455 tti->tti_tea.ta_handle,
456 tti->tti_u.update.tti_update_reply,
457 tti->tti_u.update.tti_update_reply_index);
461 static int out_index_insert(struct tgt_session_info *tsi)
463 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
464 struct object_update *update = tti->tti_u.update.tti_update;
465 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
466 struct dt_insert_rec *rec = &tti->tti_rec;
474 name = object_update_param_get(update, 0, NULL);
476 CERROR("%s: empty name for index insert: rc = %ld\n",
477 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
478 RETURN(PTR_ERR(name));
481 fid = object_update_param_get(update, 1, &size);
482 if (IS_ERR(fid) || size != sizeof(*fid)) {
483 CERROR("%s: invalid fid: rc = %ld\n",
484 tgt_name(tsi->tsi_tgt), PTR_ERR(fid));
485 RETURN(PTR_ERR(fid));
488 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
489 lustre_swab_lu_fid(fid);
491 if (!fid_is_sane(fid)) {
492 CERROR("%s: invalid FID "DFID": rc = %d\n",
493 tgt_name(tsi->tsi_tgt), PFID(fid), -EPROTO);
497 ptype = object_update_param_get(update, 2, &size);
498 if (IS_ERR(ptype) || size != sizeof(*ptype)) {
499 CERROR("%s: invalid type for index insert: rc = %ld\n",
500 tgt_name(tsi->tsi_tgt), PTR_ERR(ptype));
501 RETURN(PTR_ERR(ptype));
504 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
508 rec->rec_type = *ptype;
510 rc = out_tx_index_insert(tsi->tsi_env, obj, (const struct dt_rec *)rec,
511 (const struct dt_key *)name, &tti->tti_tea,
512 tti->tti_tea.ta_handle,
513 tti->tti_u.update.tti_update_reply,
514 tti->tti_u.update.tti_update_reply_index);
518 static int out_index_delete(struct tgt_session_info *tsi)
520 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
521 struct object_update *update = tti->tti_u.update.tti_update;
522 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
526 if (!lu_object_exists(&obj->do_lu))
529 name = object_update_param_get(update, 0, NULL);
531 CERROR("%s: empty name for index delete: rc = %ld\n",
532 tgt_name(tsi->tsi_tgt), PTR_ERR(name));
533 RETURN(PTR_ERR(name));
536 rc = out_tx_index_delete(tsi->tsi_env, obj, (const struct dt_key *)name,
537 &tti->tti_tea, tti->tti_tea.ta_handle,
538 tti->tti_u.update.tti_update_reply,
539 tti->tti_u.update.tti_update_reply_index);
543 static int out_destroy(struct tgt_session_info *tsi)
545 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
546 struct object_update *update = tti->tti_u.update.tti_update;
547 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
552 fid = &update->ou_fid;
553 if (!fid_is_sane(fid)) {
554 CERROR("%s: invalid FID "DFID": rc = %d\n",
555 tgt_name(tsi->tsi_tgt), PFID(fid), -EPROTO);
559 if (!lu_object_exists(&obj->do_lu))
562 rc = out_tx_destroy(tsi->tsi_env, obj, &tti->tti_tea,
563 tti->tti_tea.ta_handle,
564 tti->tti_u.update.tti_update_reply,
565 tti->tti_u.update.tti_update_reply_index);
570 static int out_write(struct tgt_session_info *tsi)
572 struct tgt_thread_info *tti = tgt_th_info(tsi->tsi_env);
573 struct object_update *update = tti->tti_u.update.tti_update;
574 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
575 struct lu_buf *lbuf = &tti->tti_buf;
584 buf = object_update_param_get(update, 0, &buf_len);
585 if (IS_ERR(buf) || buf_len == 0) {
586 CERROR("%s: empty buf for xattr set: rc = %ld\n",
587 tgt_name(tsi->tsi_tgt), PTR_ERR(buf));
588 RETURN(PTR_ERR(buf));
591 lbuf->lb_len = buf_len;
593 tmp = object_update_param_get(update, 1, &size);
594 if (IS_ERR(tmp) || size != sizeof(*tmp)) {
595 CERROR("%s: empty or wrong size %zu pos: rc = %ld\n",
596 tgt_name(tsi->tsi_tgt), size, PTR_ERR(tmp));
597 RETURN(PTR_ERR(tmp));
600 if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
604 rc = out_tx_write(tsi->tsi_env, obj, lbuf, pos,
605 &tti->tti_tea, tti->tti_tea.ta_handle,
606 tti->tti_u.update.tti_update_reply,
607 tti->tti_u.update.tti_update_reply_index);
611 static int out_read(struct tgt_session_info *tsi)
613 const struct lu_env *env = tsi->tsi_env;
614 struct tgt_thread_info *tti = tgt_th_info(env);
615 struct object_update *update = tti->tti_u.update.tti_update;
616 struct dt_object *obj = tti->tti_u.update.tti_dt_object;
617 struct object_update_reply *reply = tti->tti_u.update.tti_update_reply;
618 int index = tti->tti_u.update.tti_update_reply_index;
619 struct lu_rdbuf *rdbuf;
620 struct object_update_result *update_result;
621 struct out_read_reply *orr;
624 size_t total_size = 0;
631 update_result = object_update_result_get(reply, index, NULL);
632 LASSERT(update_result != NULL);
633 update_result->our_datalen = sizeof(*orr);
635 if (!lu_object_exists(&obj->do_lu))
636 GOTO(out, rc = -ENOENT);
638 tmp = object_update_param_get(update, 0, NULL);
640 CERROR("%s: empty size for read: rc = %ld\n",
641 tgt_name(tsi->tsi_tgt), PTR_ERR(tmp));
642 GOTO(out, rc = PTR_ERR(tmp));
644 size = le64_to_cpu(*(size_t *)(tmp));
646 tmp = object_update_param_get(update, 1, NULL);
648 CERROR("%s: empty pos for read: rc = %ld\n",
649 tgt_name(tsi->tsi_tgt), PTR_ERR(tmp));
650 GOTO(out, rc = PTR_ERR(tmp));
652 pos = le64_to_cpu(*(__u64 *)(tmp));
654 /* Put the offset into the begining of the buffer in reply */
655 orr = (struct out_read_reply *)update_result->our_data;
657 nbufs = (size + OUT_BULK_BUFFER_SIZE - 1) / OUT_BULK_BUFFER_SIZE;
658 OBD_ALLOC(rdbuf, sizeof(struct lu_rdbuf) +
659 nbufs * sizeof(rdbuf->rb_bufs[0]));
661 GOTO(out, rc = -ENOMEM);
665 for (i = 0; i < nbufs; i++) {
668 read_size = size > OUT_BULK_BUFFER_SIZE ?
669 OUT_BULK_BUFFER_SIZE : size;
670 OBD_ALLOC(rdbuf->rb_bufs[i].lb_buf, read_size);
671 if (rdbuf->rb_bufs[i].lb_buf == NULL)
672 GOTO(out_free, rc = -ENOMEM);
674 rdbuf->rb_bufs[i].lb_len = read_size;
675 dt_read_lock(env, obj, MOR_TGT_CHILD);
676 rc = dt_read(env, obj, &rdbuf->rb_bufs[i], &pos);
677 dt_read_unlock(env, obj);
679 total_size += rc < 0 ? 0 : rc;
687 /* send pages to client */
688 rc = tgt_send_buffer(tsi, rdbuf);
692 orr->orr_size = total_size;
693 orr->orr_offset = pos;
695 orr_cpu_to_le(orr, orr);
696 update_result->our_datalen += orr->orr_size;
698 for (i = 0; i < nbufs; i++) {
699 if (rdbuf->rb_bufs[i].lb_buf != NULL) {
700 OBD_FREE(rdbuf->rb_bufs[i].lb_buf,
701 rdbuf->rb_bufs[i].lb_len);
704 OBD_FREE(rdbuf, sizeof(struct lu_rdbuf) +
705 nbufs * sizeof(rdbuf->rb_bufs[0]));
707 /* Insert read buffer */
708 update_result->our_rc = ptlrpc_status_hton(rc);
709 reply->ourp_lens[index] = cfs_size_round(update_result->our_datalen +
710 sizeof(*update_result));
714 static int out_noop(struct tgt_session_info *tsi)
719 #define DEF_OUT_HNDL(opc, name, flags, fn) \
720 [opc - OUT_CREATE] = { \
730 static struct tgt_handler out_update_ops[] = {
731 DEF_OUT_HNDL(OUT_CREATE, "out_create", MUTABOR | HABEO_REFERO,
733 DEF_OUT_HNDL(OUT_DESTROY, "out_create", MUTABOR | HABEO_REFERO,
735 DEF_OUT_HNDL(OUT_REF_ADD, "out_ref_add", MUTABOR | HABEO_REFERO,
737 DEF_OUT_HNDL(OUT_REF_DEL, "out_ref_del", MUTABOR | HABEO_REFERO,
739 DEF_OUT_HNDL(OUT_ATTR_SET, "out_attr_set", MUTABOR | HABEO_REFERO,
741 DEF_OUT_HNDL(OUT_ATTR_GET, "out_attr_get", HABEO_REFERO,
743 DEF_OUT_HNDL(OUT_XATTR_SET, "out_xattr_set", MUTABOR | HABEO_REFERO,
745 DEF_OUT_HNDL(OUT_XATTR_DEL, "out_xattr_del", MUTABOR | HABEO_REFERO,
747 DEF_OUT_HNDL(OUT_XATTR_GET, "out_xattr_get", HABEO_REFERO,
749 DEF_OUT_HNDL(OUT_INDEX_LOOKUP, "out_index_lookup", HABEO_REFERO,
751 DEF_OUT_HNDL(OUT_INDEX_INSERT, "out_index_insert",
752 MUTABOR | HABEO_REFERO, out_index_insert),
753 DEF_OUT_HNDL(OUT_INDEX_DELETE, "out_index_delete",
754 MUTABOR | HABEO_REFERO, out_index_delete),
755 DEF_OUT_HNDL(OUT_WRITE, "out_write", MUTABOR | HABEO_REFERO, out_write),
756 DEF_OUT_HNDL(OUT_READ, "out_read", HABEO_REFERO, out_read),
757 DEF_OUT_HNDL(OUT_NOOP, "out_noop", HABEO_REFERO, out_noop),
760 static struct tgt_handler *out_handler_find(__u32 opc)
762 struct tgt_handler *h;
765 if (OUT_CREATE <= opc && opc < OUT_LAST) {
766 h = &out_update_ops[opc - OUT_CREATE];
767 LASSERTF(h->th_opc == opc, "opcode mismatch %d != %d\n",
770 h = NULL; /* unsupported opc */
775 static int out_tx_start(const struct lu_env *env, struct dt_device *dt,
776 struct thandle_exec_args *ta, struct obd_export *exp)
779 ta->ta_handle = dt_trans_create(env, dt);
780 if (IS_ERR(ta->ta_handle)) {
783 rc = PTR_ERR(ta->ta_handle);
784 ta->ta_handle = NULL;
785 CERROR("%s: start handle error: rc = %d\n", dt_obd_name(dt),
789 if (exp->exp_need_sync)
790 ta->ta_handle->th_sync = 1;
795 static int out_trans_start(const struct lu_env *env,
796 struct thandle_exec_args *ta)
798 return dt_trans_start(env, ta->ta_handle->th_dev, ta->ta_handle);
801 static int out_trans_stop(const struct lu_env *env,
802 struct thandle_exec_args *ta, int err)
807 ta->ta_handle->th_result = err;
808 rc = dt_trans_stop(env, ta->ta_handle->th_dev, ta->ta_handle);
809 for (i = 0; i < ta->ta_argno; i++) {
810 if (ta->ta_args[i]->object != NULL) {
811 struct dt_object *obj = ta->ta_args[i]->object;
813 /* If the object is being created during this
814 * transaction, we need to remove them from the
815 * cache immediately, because a few layers are
816 * missing in OUT handler, i.e. the object might
817 * not be initialized in all layers */
818 if (ta->ta_args[i]->exec_fn == out_tx_create_exec)
819 set_bit(LU_OBJECT_HEARD_BANSHEE,
820 &obj->do_lu.lo_header->loh_flags);
821 lu_object_put(env, &ta->ta_args[i]->object->do_lu);
822 ta->ta_args[i]->object = NULL;
825 ta->ta_handle = NULL;
831 static int out_tx_end(const struct lu_env *env, struct thandle_exec_args *ta,
834 struct tgt_session_info *tsi = tgt_ses_info(env);
840 if (ta->ta_handle == NULL)
843 if (declare_ret != 0 || ta->ta_argno == 0)
844 GOTO(stop, rc = declare_ret);
846 LASSERT(ta->ta_handle->th_dev != NULL);
847 rc = out_trans_start(env, ta);
848 if (unlikely(rc != 0))
851 for (i = 0; i < ta->ta_argno; i++) {
852 rc = ta->ta_args[i]->exec_fn(env, ta->ta_handle,
854 if (unlikely(rc != 0)) {
855 CDEBUG(D_INFO, "error during execution of #%u from"
856 " %s:%d: rc = %d\n", i, ta->ta_args[i]->file,
857 ta->ta_args[i]->line, rc);
859 if (ta->ta_args[i]->undo_fn != NULL)
860 ta->ta_args[i]->undo_fn(env,
864 CERROR("%s: undo for %s:%d: rc = %d\n",
865 dt_obd_name(ta->ta_handle->th_dev),
866 ta->ta_args[i]->file,
867 ta->ta_args[i]->line, -ENOTSUPP);
871 CDEBUG(D_INFO, "%s: executed %u/%u: rc = %d\n",
872 dt_obd_name(ta->ta_handle->th_dev), i, ta->ta_argno, rc);
875 /* Only fail for real updates, XXX right now llog updates will be
876 * ignore, whose updates count is usually 1, so failover test
877 * case will spot this FAIL_UPDATE_NET_REP precisely, and it will
878 * be removed after async update patch is landed. */
879 if (ta->ta_argno > 1)
880 tsi->tsi_reply_fail_id = OBD_FAIL_OUT_UPDATE_NET_REP;
883 rc1 = out_trans_stop(env, ta, rc);
887 ta->ta_handle = NULL;
894 * Object updates between Targets. Because all the updates has been
895 * dis-assemblied into object updates at sender side, so OUT will
896 * call OSD API directly to execute these updates.
898 * In DNE phase I all of the updates in the request need to be executed
899 * in one transaction, and the transaction has to be synchronously.
901 * Please refer to lustre/include/lustre/lustre_idl.h for req/reply
904 int out_handle(struct tgt_session_info *tsi)
906 const struct lu_env *env = tsi->tsi_env;
907 struct tgt_thread_info *tti = tgt_th_info(env);
908 struct thandle_exec_args *ta = &tti->tti_tea;
909 struct req_capsule *pill = tsi->tsi_pill;
910 struct dt_device *dt = tsi->tsi_tgt->lut_bottom;
911 struct out_update_header *ouh;
912 struct out_update_buffer *oub = NULL;
913 struct object_update *update;
914 struct object_update_reply *reply;
915 struct ptlrpc_bulk_desc *desc = NULL;
916 struct l_wait_info lwi;
918 int current_batchid = -1;
919 __u32 update_buf_count;
921 unsigned int reply_index = 0;
924 int ouh_size, reply_size;
928 req_capsule_set(pill, &RQF_OUT_UPDATE);
929 ouh_size = req_capsule_get_size(pill, &RMF_OUT_UPDATE_HEADER,
932 RETURN(err_serious(-EPROTO));
934 ouh = req_capsule_client_get(pill, &RMF_OUT_UPDATE_HEADER);
936 RETURN(err_serious(-EPROTO));
938 if (ouh->ouh_magic != OUT_UPDATE_HEADER_MAGIC) {
939 CERROR("%s: invalid update buffer magic %x expect %x: "
940 "rc = %d\n", tgt_name(tsi->tsi_tgt), ouh->ouh_magic,
941 UPDATE_REQUEST_MAGIC, -EPROTO);
942 RETURN(err_serious(-EPROTO));
945 update_buf_count = ouh->ouh_count;
946 if (update_buf_count == 0)
947 RETURN(err_serious(-EPROTO));
949 OBD_ALLOC(update_bufs, sizeof(*update_bufs) * update_buf_count);
950 if (update_bufs == NULL)
951 RETURN(err_serious(-ENOMEM));
953 if (ouh->ouh_inline_length > 0) {
954 update_bufs[0] = ouh->ouh_inline_data;
956 struct out_update_buffer *tmp;
958 oub = req_capsule_client_get(pill, &RMF_OUT_UPDATE_BUF);
960 GOTO(out_free, rc = err_serious(-EPROTO));
962 desc = ptlrpc_prep_bulk_exp(pill->rc_req, update_buf_count,
963 PTLRPC_BULK_OPS_COUNT,
964 PTLRPC_BULK_GET_SINK |
965 PTLRPC_BULK_BUF_KVEC,
967 &ptlrpc_bulk_kvec_ops);
969 GOTO(out_free, rc = err_serious(-ENOMEM));
972 for (i = 0; i < update_buf_count; i++, tmp++) {
973 if (tmp->oub_size >= OUT_MAXREQSIZE)
974 GOTO(out_free, rc = err_serious(-EPROTO));
976 OBD_ALLOC(update_bufs[i], tmp->oub_size);
977 if (update_bufs[i] == NULL)
978 GOTO(out_free, rc = err_serious(-ENOMEM));
980 desc->bd_frag_ops->add_iov_frag(desc, update_bufs[i],
984 pill->rc_req->rq_bulk_write = 1;
985 rc = sptlrpc_svc_prep_bulk(pill->rc_req, desc);
987 GOTO(out_free, rc = err_serious(rc));
989 rc = target_bulk_io(pill->rc_req->rq_export, desc, &lwi);
991 GOTO(out_free, rc = err_serious(rc));
993 /* validate the request and calculate the total update count and
997 for (i = 0; i < update_buf_count; i++) {
998 struct object_update_request *our;
1001 our = update_bufs[i];
1002 if (ptlrpc_req_need_swab(pill->rc_req))
1003 lustre_swab_object_update_request(our);
1005 if (our->ourq_magic != UPDATE_REQUEST_MAGIC) {
1006 CERROR("%s: invalid update buffer magic %x"
1007 " expect %x: rc = %d\n",
1008 tgt_name(tsi->tsi_tgt), our->ourq_magic,
1009 UPDATE_REQUEST_MAGIC, -EPROTO);
1010 GOTO(out_free, rc = err_serious(-EPROTO));
1012 updates += our->ourq_count;
1014 /* need to calculate reply size */
1015 for (j = 0; j < our->ourq_count; j++) {
1016 update = object_update_request_get(our, j, NULL);
1018 GOTO(out, rc = err_serious(-EPROTO));
1019 if (ptlrpc_req_need_swab(pill->rc_req))
1020 lustre_swab_object_update(update);
1022 if (!fid_is_sane(&update->ou_fid)) {
1023 CERROR("%s: invalid FID "DFID": rc = %d\n",
1024 tgt_name(tsi->tsi_tgt),
1025 PFID(&update->ou_fid), -EPROTO);
1026 GOTO(out, rc = err_serious(-EPROTO));
1029 /* XXX: what ou_result_size can be considered safe? */
1031 reply_size += sizeof(reply->ourp_lens[0]);
1032 reply_size += sizeof(struct object_update_result);
1033 reply_size += update->ou_result_size;
1036 reply_size += sizeof(*reply);
1038 if (unlikely(reply_size > ouh->ouh_reply_size)) {
1039 CERROR("%s: too small reply buf %u for %u, need %u at least\n",
1040 tgt_name(tsi->tsi_tgt), ouh->ouh_reply_size,
1041 updates, reply_size);
1042 GOTO(out_free, rc = err_serious(-EPROTO));
1045 req_capsule_set_size(pill, &RMF_OUT_UPDATE_REPLY, RCL_SERVER,
1046 ouh->ouh_reply_size);
1047 rc = req_capsule_server_pack(pill);
1049 CERROR("%s: Can't pack response: rc = %d\n",
1050 tgt_name(tsi->tsi_tgt), rc);
1051 GOTO(out_free, rc = err_serious(-EPROTO));
1054 /* Prepare the update reply buffer */
1055 reply = req_capsule_server_get(pill, &RMF_OUT_UPDATE_REPLY);
1057 GOTO(out_free, rc = -EPROTO);
1058 reply->ourp_magic = UPDATE_REPLY_MAGIC;
1059 reply->ourp_count = updates;
1060 tti->tti_u.update.tti_update_reply = reply;
1061 tti->tti_mult_trans = !req_is_replay(tgt_ses_req(tsi));
1063 /* Walk through updates in the request to execute them */
1064 for (i = 0; i < update_buf_count; i++) {
1065 struct tgt_handler *h;
1066 struct dt_object *dt_obj;
1068 struct object_update_request *our;
1071 our = update_bufs[i];
1072 update_count = our->ourq_count;
1073 for (j = 0; j < update_count; j++) {
1074 struct lu_object_conf conf;
1076 update = object_update_request_get(our, j, NULL);
1077 if (update->ou_type == OUT_CREATE)
1078 conf.loc_flags = LOC_F_NEW;
1082 dt_obj = dt_locate_at(env, dt, &update->ou_fid,
1083 dt->dd_lu_dev.ld_site->ls_top_dev, &conf);
1085 GOTO(out, rc = PTR_ERR(dt_obj));
1087 if (dt->dd_record_fid_accessed) {
1088 lfsck_pack_rfa(&tti->tti_lr,
1089 lu_object_fid(&dt_obj->do_lu),
1092 tgt_lfsck_in_notify(env, dt, &tti->tti_lr,
1096 tti->tti_u.update.tti_dt_object = dt_obj;
1097 tti->tti_u.update.tti_update = update;
1098 tti->tti_u.update.tti_update_reply_index = reply_index;
1100 h = out_handler_find(update->ou_type);
1101 if (unlikely(h == NULL)) {
1102 CERROR("%s: unsupported opc: 0x%x\n",
1103 tgt_name(tsi->tsi_tgt), update->ou_type);
1104 GOTO(next, rc = -ENOTSUPP);
1107 /* Check resend case only for modifying RPC */
1108 if (h->th_flags & MUTABOR) {
1109 struct ptlrpc_request *req = tgt_ses_req(tsi);
1111 if (out_check_resent(env, dt, dt_obj, req,
1112 out_reconstruct, reply,
1117 /* start transaction for modification RPC only */
1118 if (h->th_flags & MUTABOR && current_batchid == -1) {
1119 current_batchid = update->ou_batchid;
1120 rc = out_tx_start(env, dt, ta, tsi->tsi_exp);
1124 if (update->ou_flags & UPDATE_FL_SYNC)
1125 ta->ta_handle->th_sync = 1;
1128 /* Stop the current update transaction, if the update
1129 * has different batchid, or read-only update */
1130 if (((current_batchid != update->ou_batchid) ||
1131 !(h->th_flags & MUTABOR)) &&
1132 ta->ta_handle != NULL) {
1133 rc = out_tx_end(env, ta, rc);
1134 current_batchid = -1;
1138 /* start a new transaction if needed */
1139 if (h->th_flags & MUTABOR) {
1140 rc = out_tx_start(env, dt, ta,
1144 if (update->ou_flags & UPDATE_FL_SYNC)
1145 ta->ta_handle->th_sync = 1;
1146 current_batchid = update->ou_batchid;
1150 rc = h->th_act(tsi);
1153 lu_object_put(env, &dt_obj->do_lu);
1159 if (current_batchid != -1) {
1160 rc1 = out_tx_end(env, ta, rc);
1166 if (update_bufs != NULL) {
1168 for (i = 0; i < update_buf_count; i++, oub++) {
1169 if (update_bufs[i] != NULL)
1170 OBD_FREE(update_bufs[i], oub->oub_size);
1174 OBD_FREE(update_bufs, sizeof(*update_bufs) * update_buf_count);
1178 ptlrpc_free_bulk(desc);
1183 struct tgt_handler tgt_out_handlers[] = {
1184 TGT_UPDATE_HDL(MUTABOR, OUT_UPDATE, out_handle),
1186 EXPORT_SYMBOL(tgt_out_handlers);