int mds_quota_ctl(struct obd_device *obd, struct obd_export *unused, struct obd_quotactl *oqctl) { struct obd_device_target *obt = &obd->u.obt; struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt; struct timeval work_start; struct timeval work_end; long timediff; int rc = 0; ENTRY; cfs_gettimeofday(&work_start); switch (oqctl->qc_cmd) { case Q_QUOTAON: oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */ rc = mds_quota_on(obd, oqctl); break; case Q_QUOTAOFF: oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */ rc = mds_quota_off(obd, oqctl); break; case Q_SETINFO: rc = mds_set_dqinfo(obd, oqctl); break; case Q_GETINFO: rc = mds_get_dqinfo(obd, oqctl); break; case Q_SETQUOTA: rc = mds_set_dqblk(obd, oqctl); break; case Q_GETQUOTA: rc = mds_get_dqblk(obd, oqctl); break; case Q_GETOINFO: case Q_GETOQUOTA: rc = mds_get_obd_quota(obd, oqctl); break; case LUSTRE_Q_INVALIDATE: rc = mds_quota_invalidate(obd, oqctl); break; case LUSTRE_Q_FINVALIDATE: oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */ rc = mds_quota_finvalidate(obd, oqctl); break; default: CERROR("%s: unsupported mds_quotactl command: %d\n", obd->obd_name, oqctl->qc_cmd); RETURN(-EFAULT); } if (rc) CDEBUG(D_INFO, "mds_quotactl admin quota command %d, id %u, " "type %d, failed: rc = %d\n", oqctl->qc_cmd, oqctl->qc_id, oqctl->qc_type, rc); cfs_gettimeofday(&work_end); timediff = cfs_timeval_sub(&work_end, &work_start, NULL); lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_QUOTA_CTL, timediff); RETURN(rc); }
/** * Send request \a request. * if \a noreply is set, don't expect any reply back and don't set up * reply buffers. * Returns 0 on success or error code. */ int ptl_send_rpc(struct ptlrpc_request *request, int noreply) { int rc; int rc2; int mpflag = 0; struct ptlrpc_connection *connection; lnet_handle_me_t reply_me_h; lnet_md_t reply_md; struct obd_device *obd = request->rq_import->imp_obd; if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_DROP_RPC)) return 0; LASSERT(request->rq_type == PTL_RPC_MSG_REQUEST); LASSERT(request->rq_wait_ctx == 0); /* If this is a re-transmit, we're required to have disengaged * cleanly from the previous attempt */ LASSERT(!request->rq_receiving_reply); LASSERT(!((lustre_msg_get_flags(request->rq_reqmsg) & MSG_REPLAY) && (request->rq_import->imp_state == LUSTRE_IMP_FULL))); if (unlikely(obd != NULL && obd->obd_fail)) { CDEBUG(D_HA, "muting rpc for failed imp obd %s\n", obd->obd_name); /* this prevents us from waiting in ptlrpc_queue_wait */ spin_lock(&request->rq_lock); request->rq_err = 1; spin_unlock(&request->rq_lock); request->rq_status = -ENODEV; return -ENODEV; } connection = request->rq_import->imp_connection; lustre_msg_set_handle(request->rq_reqmsg, &request->rq_import->imp_remote_handle); lustre_msg_set_type(request->rq_reqmsg, PTL_RPC_MSG_REQUEST); lustre_msg_set_conn_cnt(request->rq_reqmsg, request->rq_import->imp_conn_cnt); lustre_msghdr_set_flags(request->rq_reqmsg, request->rq_import->imp_msghdr_flags); if (request->rq_resend) lustre_msg_add_flags(request->rq_reqmsg, MSG_RESENT); if (request->rq_memalloc) mpflag = cfs_memory_pressure_get_and_set(); rc = sptlrpc_cli_wrap_request(request); if (rc) goto out; /* bulk register should be done after wrap_request() */ if (request->rq_bulk != NULL) { rc = ptlrpc_register_bulk(request); if (rc != 0) goto out; } if (!noreply) { LASSERT(request->rq_replen != 0); if (request->rq_repbuf == NULL) { LASSERT(request->rq_repdata == NULL); LASSERT(request->rq_repmsg == NULL); rc = sptlrpc_cli_alloc_repbuf(request, request->rq_replen); if (rc) { /* this prevents us from looping in * ptlrpc_queue_wait */ spin_lock(&request->rq_lock); request->rq_err = 1; spin_unlock(&request->rq_lock); request->rq_status = rc; goto cleanup_bulk; } } else { request->rq_repdata = NULL; request->rq_repmsg = NULL; } rc = LNetMEAttach(request->rq_reply_portal,/*XXX FIXME bug 249*/ connection->c_peer, request->rq_xid, 0, LNET_UNLINK, LNET_INS_AFTER, &reply_me_h); if (rc != 0) { CERROR("LNetMEAttach failed: %d\n", rc); LASSERT(rc == -ENOMEM); rc = -ENOMEM; goto cleanup_bulk; } } spin_lock(&request->rq_lock); /* If the MD attach succeeds, there _will_ be a reply_in callback */ request->rq_receiving_reply = !noreply; request->rq_req_unlink = 1; /* We are responsible for unlinking the reply buffer */ request->rq_reply_unlink = !noreply; /* Clear any flags that may be present from previous sends. */ request->rq_replied = 0; request->rq_err = 0; request->rq_timedout = 0; request->rq_net_err = 0; request->rq_resend = 0; request->rq_restart = 0; request->rq_reply_truncate = 0; spin_unlock(&request->rq_lock); if (!noreply) { reply_md.start = request->rq_repbuf; reply_md.length = request->rq_repbuf_len; /* Allow multiple early replies */ reply_md.threshold = LNET_MD_THRESH_INF; /* Manage remote for early replies */ reply_md.options = PTLRPC_MD_OPTIONS | LNET_MD_OP_PUT | LNET_MD_MANAGE_REMOTE | LNET_MD_TRUNCATE; /* allow to make EOVERFLOW error */ reply_md.user_ptr = &request->rq_reply_cbid; reply_md.eq_handle = ptlrpc_eq_h; /* We must see the unlink callback to unset rq_reply_unlink, so we can't auto-unlink */ rc = LNetMDAttach(reply_me_h, reply_md, LNET_RETAIN, &request->rq_reply_md_h); if (rc != 0) { CERROR("LNetMDAttach failed: %d\n", rc); LASSERT(rc == -ENOMEM); spin_lock(&request->rq_lock); /* ...but the MD attach didn't succeed... */ request->rq_receiving_reply = 0; spin_unlock(&request->rq_lock); rc = -ENOMEM; goto cleanup_me; } CDEBUG(D_NET, "Setup reply buffer: %u bytes, xid %llu, portal %u\n", request->rq_repbuf_len, request->rq_xid, request->rq_reply_portal); } /* add references on request for request_out_callback */ ptlrpc_request_addref(request); if (obd != NULL && obd->obd_svc_stats != NULL) lprocfs_counter_add(obd->obd_svc_stats, PTLRPC_REQACTIVE_CNTR, atomic_read(&request->rq_import->imp_inflight)); OBD_FAIL_TIMEOUT(OBD_FAIL_PTLRPC_DELAY_SEND, request->rq_timeout + 5); ktime_get_real_ts64(&request->rq_arrival_time); request->rq_sent = ktime_get_real_seconds(); /* We give the server rq_timeout secs to process the req, and add the network latency for our local timeout. */ request->rq_deadline = request->rq_sent + request->rq_timeout + ptlrpc_at_get_net_latency(request); ptlrpc_pinger_sending_on_import(request->rq_import); DEBUG_REQ(D_INFO, request, "send flg=%x", lustre_msg_get_flags(request->rq_reqmsg)); rc = ptl_send_buf(&request->rq_req_md_h, request->rq_reqbuf, request->rq_reqdata_len, LNET_NOACK_REQ, &request->rq_req_cbid, connection, request->rq_request_portal, request->rq_xid, 0); if (rc == 0) goto out; ptlrpc_req_finished(request); if (noreply) goto out; cleanup_me: /* MEUnlink is safe; the PUT didn't even get off the ground, and * nobody apart from the PUT's target has the right nid+XID to * access the reply buffer. */ rc2 = LNetMEUnlink(reply_me_h); LASSERT(rc2 == 0); /* UNLINKED callback called synchronously */ LASSERT(!request->rq_receiving_reply); cleanup_bulk: /* We do sync unlink here as there was no real transfer here so * the chance to have long unlink to sluggish net is smaller here. */ ptlrpc_unregister_bulk(request, 0); out: if (request->rq_memalloc) cfs_memory_pressure_restore(mpflag); return rc; }
static int osd_bufs_get_write(const struct lu_env *env, struct osd_object *obj, loff_t off, ssize_t len, struct niobuf_local *lnb) { struct osd_device *osd = osd_obj2dev(obj); int plen, off_in_block, sz_in_block; int rc, i = 0, npages = 0; arc_buf_t *abuf; uint32_t bs; uint64_t dummy; ENTRY; dmu_object_size_from_db(obj->oo_db, &bs, &dummy); /* * currently only full blocks are subject to zerocopy approach: * so that we're sure nobody is trying to update the same block */ while (len > 0) { LASSERT(npages < PTLRPC_MAX_BRW_PAGES); off_in_block = off & (bs - 1); sz_in_block = min_t(int, bs - off_in_block, len); if (sz_in_block == bs) { /* full block, try to use zerocopy */ abuf = dmu_request_arcbuf(obj->oo_db, bs); if (unlikely(abuf == NULL)) GOTO(out_err, rc = -ENOMEM); atomic_inc(&osd->od_zerocopy_loan); /* go over pages arcbuf contains, put them as * local niobufs for ptlrpc's bulks */ while (sz_in_block > 0) { plen = min_t(int, sz_in_block, PAGE_CACHE_SIZE); lnb[i].lnb_file_offset = off; lnb[i].lnb_page_offset = 0; lnb[i].lnb_len = plen; lnb[i].lnb_rc = 0; if (sz_in_block == bs) lnb[i].lnb_data = abuf; else lnb[i].lnb_data = NULL; /* this one is not supposed to fail */ lnb[i].lnb_page = kmem_to_page(abuf->b_data + off_in_block); LASSERT(lnb[i].lnb_page); lprocfs_counter_add(osd->od_stats, LPROC_OSD_ZEROCOPY_IO, 1); sz_in_block -= plen; len -= plen; off += plen; off_in_block += plen; i++; npages++; } } else { if (off_in_block == 0 && len < bs &&
int filter_quota_ctl(struct obd_device *unused, struct obd_export *exp, struct obd_quotactl *oqctl) { struct obd_device *obd = exp->exp_obd; struct obd_device_target *obt = &obd->u.obt; struct lvfs_run_ctxt saved; struct lustre_quota_ctxt *qctxt = &obt->obt_qctxt; struct lustre_qunit_size *lqs; void *handle = NULL; struct timeval work_start; struct timeval work_end; long timediff; int rc = 0; ENTRY; cfs_gettimeofday(&work_start); switch (oqctl->qc_cmd) { case Q_QUOTAON: oqctl->qc_id = obt->obt_qfmt; rc = generic_quota_on(obd, oqctl, 0); break; case Q_FINVALIDATE: case Q_QUOTAOFF: cfs_down(&obt->obt_quotachecking); if (oqctl->qc_cmd == Q_FINVALIDATE && (obt->obt_qctxt.lqc_flags & UGQUOTA2LQC(oqctl->qc_type))) { CWARN("quota[%u] is on yet\n", oqctl->qc_type); cfs_up(&obt->obt_quotachecking); rc = -EBUSY; break; } oqctl->qc_id = obt->obt_qfmt; /* override qfmt version */ case Q_GETOINFO: case Q_GETOQUOTA: case Q_GETQUOTA: /* In recovery scenario, this pending dqacq/dqrel might have * been processed by master successfully before it's dquot * on master enter recovery mode. We must wait for this * dqacq/dqrel done then return the correct limits to master */ if (oqctl->qc_stat == QUOTA_RECOVERING) handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1); push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); rc = fsfilt_quotactl(obd, obt->obt_sb, oqctl); pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); if (oqctl->qc_stat == QUOTA_RECOVERING) quota_unbarrier(handle); if (oqctl->qc_cmd == Q_QUOTAOFF || oqctl->qc_cmd == Q_FINVALIDATE) { if (oqctl->qc_cmd == Q_QUOTAOFF) { if (!rc) obt->obt_qctxt.lqc_flags &= ~UGQUOTA2LQC(oqctl->qc_type); else if (quota_is_off(qctxt, oqctl)) rc = -EALREADY; CDEBUG(D_QUOTA, "%s: quotaoff type:flags:rc " "%u:%lu:%d\n", obd->obd_name, oqctl->qc_type, qctxt->lqc_flags, rc); } cfs_up(&obt->obt_quotachecking); } break; case Q_SETQUOTA: /* currently, it is only used for nullifying the quota */ handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1); push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl); if (!rc) { oqctl->qc_cmd = Q_SYNC; fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl); oqctl->qc_cmd = Q_SETQUOTA; } pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); quota_unbarrier(handle); lqs = quota_search_lqs(LQS_KEY(oqctl->qc_type, oqctl->qc_id), qctxt, 0); if (lqs == NULL || IS_ERR(lqs)){ CERROR("fail to create lqs during setquota operation " "for %sid %u\n", oqctl->qc_type ? "g" : "u", oqctl->qc_id); } else { lqs->lqs_flags &= ~QB_SET; lqs_putref(lqs); } break; case Q_INITQUOTA: { unsigned int id[MAXQUOTAS] = { 0, 0 }; /* Initialize quota limit to MIN_QLIMIT */ LASSERT(oqctl->qc_dqblk.dqb_valid == QIF_BLIMITS); LASSERT(oqctl->qc_dqblk.dqb_bsoftlimit == 0); if (!oqctl->qc_dqblk.dqb_bhardlimit) goto adjust; /* There might be a pending dqacq/dqrel (which is going to * clear stale limits on slave). we should wait for it's * completion then initialize limits */ handle = quota_barrier(&obd->u.obt.obt_qctxt, oqctl, 1); LASSERT(oqctl->qc_dqblk.dqb_bhardlimit == MIN_QLIMIT); push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); rc = fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl); /* Update on-disk quota, in case of lose the changed limits * (MIN_QLIMIT) on crash, which cannot be recovered.*/ if (!rc) { oqctl->qc_cmd = Q_SYNC; fsfilt_quotactl(obd, obd->u.obt.obt_sb, oqctl); oqctl->qc_cmd = Q_INITQUOTA; } pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL); quota_unbarrier(handle); if (rc) RETURN(rc); adjust: lqs = quota_search_lqs(LQS_KEY(oqctl->qc_type, oqctl->qc_id), qctxt, 1); if (lqs == NULL || IS_ERR(lqs)){ CERROR("fail to create lqs during setquota operation " "for %sid %u\n", oqctl->qc_type ? "g" : "u", oqctl->qc_id); break; } else { lqs->lqs_flags |= QB_SET; lqs_putref(lqs); } /* Trigger qunit pre-acquire */ if (oqctl->qc_type == USRQUOTA) id[USRQUOTA] = oqctl->qc_id; else id[GRPQUOTA] = oqctl->qc_id; rc = qctxt_adjust_qunit(obd, &obd->u.obt.obt_qctxt, id, 1, 0, NULL); if (rc == -EDQUOT || rc == -EBUSY) { CDEBUG(D_QUOTA, "rc: %d.\n", rc); rc = 0; } break; } default: CERROR("%s: unsupported filter_quotactl command: %d\n", obd->obd_name, oqctl->qc_cmd); RETURN(-EFAULT); } cfs_gettimeofday(&work_end); timediff = cfs_timeval_sub(&work_end, &work_start, NULL); lprocfs_counter_add(qctxt->lqc_stats, LQUOTA_QUOTA_CTL, timediff); RETURN(rc); }
/** * Send request \a request. * if \a noreply is set, don't expect any reply back and don't set up * reply buffers. * Returns 0 on success or error code. */ int ptl_send_rpc(struct ptlrpc_request *request, int noreply) { int rc; int rc2; int mpflag = 0; struct ptlrpc_connection *connection; lnet_handle_me_t reply_me_h; lnet_md_t reply_md; struct obd_import *imp = request->rq_import; struct obd_device *obd = imp->imp_obd; ENTRY; if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_DROP_RPC)) RETURN(0); LASSERT(request->rq_type == PTL_RPC_MSG_REQUEST); LASSERT(request->rq_wait_ctx == 0); /* If this is a re-transmit, we're required to have disengaged * cleanly from the previous attempt */ LASSERT(!request->rq_receiving_reply); LASSERT(!((lustre_msg_get_flags(request->rq_reqmsg) & MSG_REPLAY) && (imp->imp_state == LUSTRE_IMP_FULL))); if (unlikely(obd != NULL && obd->obd_fail)) { CDEBUG(D_HA, "muting rpc for failed imp obd %s\n", obd->obd_name); /* this prevents us from waiting in ptlrpc_queue_wait */ spin_lock(&request->rq_lock); request->rq_err = 1; spin_unlock(&request->rq_lock); request->rq_status = -ENODEV; RETURN(-ENODEV); } connection = imp->imp_connection; lustre_msg_set_handle(request->rq_reqmsg, &imp->imp_remote_handle); lustre_msg_set_type(request->rq_reqmsg, PTL_RPC_MSG_REQUEST); lustre_msg_set_conn_cnt(request->rq_reqmsg, imp->imp_conn_cnt); lustre_msghdr_set_flags(request->rq_reqmsg, imp->imp_msghdr_flags); /* If it's the first time to resend the request for EINPROGRESS, * we need to allocate a new XID (see after_reply()), it's different * from the resend for reply timeout. */ if (request->rq_nr_resend != 0 && list_empty(&request->rq_unreplied_list)) { __u64 min_xid = 0; /* resend for EINPROGRESS, allocate new xid to avoid reply * reconstruction */ spin_lock(&imp->imp_lock); ptlrpc_assign_next_xid_nolock(request); request->rq_mbits = request->rq_xid; min_xid = ptlrpc_known_replied_xid(imp); spin_unlock(&imp->imp_lock); lustre_msg_set_last_xid(request->rq_reqmsg, min_xid); DEBUG_REQ(D_RPCTRACE, request, "Allocating new xid for " "resend on EINPROGRESS"); } else if (request->rq_bulk != NULL) { ptlrpc_set_bulk_mbits(request); lustre_msg_set_mbits(request->rq_reqmsg, request->rq_mbits); } if (list_empty(&request->rq_unreplied_list) || request->rq_xid <= imp->imp_known_replied_xid) { DEBUG_REQ(D_ERROR, request, "xid: "LPU64", replied: "LPU64", " "list_empty:%d\n", request->rq_xid, imp->imp_known_replied_xid, list_empty(&request->rq_unreplied_list)); LBUG(); } /** For enabled AT all request should have AT_SUPPORT in the * FULL import state when OBD_CONNECT_AT is set */ LASSERT(AT_OFF || imp->imp_state != LUSTRE_IMP_FULL || (imp->imp_msghdr_flags & MSGHDR_AT_SUPPORT) || !(imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_AT)); if (request->rq_resend) { lustre_msg_add_flags(request->rq_reqmsg, MSG_RESENT); if (request->rq_resend_cb != NULL) request->rq_resend_cb(request, &request->rq_async_args); } if (request->rq_memalloc) mpflag = cfs_memory_pressure_get_and_set(); rc = sptlrpc_cli_wrap_request(request); if (rc == -ENOMEM) /* set rq_sent so that this request is treated * as a delayed send in the upper layers */ request->rq_sent = cfs_time_current_sec(); if (rc) GOTO(out, rc); /* bulk register should be done after wrap_request() */ if (request->rq_bulk != NULL) { rc = ptlrpc_register_bulk (request); if (rc != 0) GOTO(out, rc); } if (!noreply) { LASSERT (request->rq_replen != 0); if (request->rq_repbuf == NULL) { LASSERT(request->rq_repdata == NULL); LASSERT(request->rq_repmsg == NULL); rc = sptlrpc_cli_alloc_repbuf(request, request->rq_replen); if (rc) { /* this prevents us from looping in * ptlrpc_queue_wait */ spin_lock(&request->rq_lock); request->rq_err = 1; spin_unlock(&request->rq_lock); request->rq_status = rc; GOTO(cleanup_bulk, rc); } } else { request->rq_repdata = NULL; request->rq_repmsg = NULL; } rc = LNetMEAttach(request->rq_reply_portal,/*XXX FIXME bug 249*/ connection->c_peer, request->rq_xid, 0, LNET_UNLINK, LNET_INS_AFTER, &reply_me_h); if (rc != 0) { CERROR("LNetMEAttach failed: %d\n", rc); LASSERT (rc == -ENOMEM); GOTO(cleanup_bulk, rc = -ENOMEM); } } spin_lock(&request->rq_lock); /* We are responsible for unlinking the reply buffer */ request->rq_reply_unlinked = noreply; request->rq_receiving_reply = !noreply; /* Clear any flags that may be present from previous sends. */ request->rq_req_unlinked = 0; request->rq_replied = 0; request->rq_err = 0; request->rq_timedout = 0; request->rq_net_err = 0; request->rq_resend = 0; request->rq_restart = 0; request->rq_reply_truncated = 0; spin_unlock(&request->rq_lock); if (!noreply) { reply_md.start = request->rq_repbuf; reply_md.length = request->rq_repbuf_len; /* Allow multiple early replies */ reply_md.threshold = LNET_MD_THRESH_INF; /* Manage remote for early replies */ reply_md.options = PTLRPC_MD_OPTIONS | LNET_MD_OP_PUT | LNET_MD_MANAGE_REMOTE | LNET_MD_TRUNCATE; /* allow to make EOVERFLOW error */; reply_md.user_ptr = &request->rq_reply_cbid; reply_md.eq_handle = ptlrpc_eq_h; /* We must see the unlink callback to set rq_reply_unlinked, * so we can't auto-unlink */ rc = LNetMDAttach(reply_me_h, reply_md, LNET_RETAIN, &request->rq_reply_md_h); if (rc != 0) { CERROR("LNetMDAttach failed: %d\n", rc); LASSERT (rc == -ENOMEM); spin_lock(&request->rq_lock); /* ...but the MD attach didn't succeed... */ request->rq_receiving_reply = 0; spin_unlock(&request->rq_lock); GOTO(cleanup_me, rc = -ENOMEM); } CDEBUG(D_NET, "Setup reply buffer: %u bytes, xid "LPU64 ", portal %u\n", request->rq_repbuf_len, request->rq_xid, request->rq_reply_portal); } /* add references on request for request_out_callback */ ptlrpc_request_addref(request); if (obd != NULL && obd->obd_svc_stats != NULL) lprocfs_counter_add(obd->obd_svc_stats, PTLRPC_REQACTIVE_CNTR, atomic_read(&imp->imp_inflight)); OBD_FAIL_TIMEOUT(OBD_FAIL_PTLRPC_DELAY_SEND, request->rq_timeout + 5); do_gettimeofday(&request->rq_sent_tv); request->rq_sent = cfs_time_current_sec(); /* We give the server rq_timeout secs to process the req, and add the network latency for our local timeout. */ request->rq_deadline = request->rq_sent + request->rq_timeout + ptlrpc_at_get_net_latency(request); ptlrpc_pinger_sending_on_import(imp); DEBUG_REQ(D_INFO, request, "send flg=%x", lustre_msg_get_flags(request->rq_reqmsg)); rc = ptl_send_buf(&request->rq_req_md_h, request->rq_reqbuf, request->rq_reqdata_len, LNET_NOACK_REQ, &request->rq_req_cbid, connection, request->rq_request_portal, request->rq_xid, 0); if (likely(rc == 0)) GOTO(out, rc); request->rq_req_unlinked = 1; ptlrpc_req_finished(request); if (noreply) GOTO(out, rc); cleanup_me: /* MEUnlink is safe; the PUT didn't even get off the ground, and * nobody apart from the PUT's target has the right nid+XID to * access the reply buffer. */ rc2 = LNetMEUnlink(reply_me_h); LASSERT (rc2 == 0); /* UNLINKED callback called synchronously */ LASSERT(!request->rq_receiving_reply); cleanup_bulk: /* We do sync unlink here as there was no real transfer here so * the chance to have long unlink to sluggish net is smaller here. */ ptlrpc_unregister_bulk(request, 0); out: if (request->rq_memalloc) cfs_memory_pressure_restore(mpflag); return rc; }
/** * when a block_write or inode_create rpc is finished, adjust the record for * pending blocks and inodes */ static int quota_pending_commit(struct obd_device *obd, const unsigned int id[], int pending[], int isblk) { struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt; struct timeval work_start; struct timeval work_end; long timediff; int i; struct qunit_data qdata[MAXQUOTAS]; ENTRY; CDEBUG(D_QUOTA, "commit pending quota for %s\n", obd->obd_name); CLASSERT(MAXQUOTAS < 4); if (!ll_sb_any_quota_active(qctxt->lqc_sb)) RETURN(0); cfs_gettimeofday(&work_start); for (i = 0; i < MAXQUOTAS; i++) { struct lustre_qunit_size *lqs = NULL; LASSERT(pending[i] >= 0); if (pending[i] == 0) continue; qdata[i].qd_id = id[i]; qdata[i].qd_flags = i; if (isblk) QDATA_SET_BLK(&qdata[i]); qdata[i].qd_count = 0; if (qdata[i].qd_id == 0 && !QDATA_IS_GRP(&qdata[i])) continue; lqs = quota_search_lqs(LQS_KEY(i, qdata[i].qd_id), qctxt, 0); if (lqs == NULL || IS_ERR(lqs)) { CERROR("can not find lqs for pending_commit: " "[id %u] [%c] [pending %u] [isblk %d] (rc %ld), " "maybe cause unexpected lqs refcount error!\n", id[i], i ? 'g': 'u', pending[i], isblk, lqs ? PTR_ERR(lqs) : -1); continue; } cfs_spin_lock(&lqs->lqs_lock); if (isblk) { LASSERTF(lqs->lqs_bwrite_pending >= pending[i], "there are too many blocks! [id %u] [%c] " "[bwrite_pending %lu] [pending %u]\n", id[i], i % 2 ? 'g' : 'u', lqs->lqs_bwrite_pending, pending[i]); lqs->lqs_bwrite_pending -= pending[i]; } else { LASSERTF(lqs->lqs_iwrite_pending >= pending[i], "there are too many files! [id %u] [%c] " "[iwrite_pending %lu] [pending %u]\n", id[i], i % 2 ? 'g' : 'u', lqs->lqs_iwrite_pending, pending[i]); lqs->lqs_iwrite_pending -= pending[i]; } CDEBUG(D_QUOTA, "%s: lqs_pending=%lu pending[%d]=%d isblk=%d\n", obd->obd_name, isblk ? lqs->lqs_bwrite_pending : lqs->lqs_iwrite_pending, i, pending[i], isblk); cfs_spin_unlock(&lqs->lqs_lock); /* for quota_search_lqs in pending_commit */ lqs_putref(lqs); /* for quota_search_lqs in quota_check */ lqs_putref(lqs); } cfs_gettimeofday(&work_end); timediff = cfs_timeval_sub(&work_end, &work_start, NULL); lprocfs_counter_add(qctxt->lqc_stats, isblk ? LQUOTA_WAIT_FOR_COMMIT_BLK : LQUOTA_WAIT_FOR_COMMIT_INO, timediff); RETURN(0); }
static int quota_chk_acq_common(struct obd_device *obd, struct obd_export *exp, const unsigned int id[], int pending[], int count, quota_acquire acquire, struct obd_trans_info *oti, int isblk, struct inode *inode, int frags) { struct lustre_quota_ctxt *qctxt = &obd->u.obt.obt_qctxt; struct timeval work_start; struct timeval work_end; long timediff; struct l_wait_info lwi = { 0 }; int rc = 0, cycle = 0, count_err = 1; ENTRY; if (!quota_is_set(obd, id, isblk ? QB_SET : QI_SET)) RETURN(0); if (isblk && (exp->exp_failed || exp->exp_abort_active_req)) /* If the client has been evicted or if it * timed out and tried to reconnect already, * abort the request immediately */ RETURN(-ENOTCONN); CDEBUG(D_QUOTA, "check quota for %s\n", obd->obd_name); pending[USRQUOTA] = pending[GRPQUOTA] = 0; /* Unfortunately, if quota master is too busy to handle the * pre-dqacq in time and quota hash on ost is used up, we * have to wait for the completion of in flight dqacq/dqrel, * in order to get enough quota for write b=12588 */ cfs_gettimeofday(&work_start); while ((rc = quota_check_common(obd, id, pending, count, cycle, isblk, inode, frags)) & QUOTA_RET_ACQUOTA) { cfs_spin_lock(&qctxt->lqc_lock); if (!qctxt->lqc_import && oti) { cfs_spin_unlock(&qctxt->lqc_lock); LASSERT(oti && oti->oti_thread && oti->oti_thread->t_watchdog); lc_watchdog_disable(oti->oti_thread->t_watchdog); CDEBUG(D_QUOTA, "sleep for quota master\n"); l_wait_event(qctxt->lqc_wait_for_qmaster, check_qm(qctxt), &lwi); CDEBUG(D_QUOTA, "wake up when quota master is back\n"); lc_watchdog_touch(oti->oti_thread->t_watchdog, CFS_GET_TIMEOUT(oti->oti_thread->t_svc)); } else { cfs_spin_unlock(&qctxt->lqc_lock); } cycle++; if (isblk) OBD_FAIL_TIMEOUT(OBD_FAIL_OST_HOLD_WRITE_RPC, 90); /* after acquire(), we should run quota_check_common again * so that we confirm there are enough quota to finish write */ rc = acquire(obd, id, oti, isblk); /* please reference to dqacq_completion for the below */ /* a new request is finished, try again */ if (rc == QUOTA_REQ_RETURNED) { CDEBUG(D_QUOTA, "finish a quota req, try again\n"); continue; } /* it is out of quota already */ if (rc == -EDQUOT) { CDEBUG(D_QUOTA, "out of quota, return -EDQUOT\n"); break; } /* Related quota has been disabled by master, but enabled by * slave, do not try again. */ if (unlikely(rc == -ESRCH)) { CERROR("mismatched quota configuration, stop try.\n"); break; } if (isblk && (exp->exp_failed || exp->exp_abort_active_req)) /* The client has been evicted or tried to * to reconnect already, abort the request */ RETURN(-ENOTCONN); /* -EBUSY and others, wait a second and try again */ if (rc < 0) { cfs_waitq_t waitq; struct l_wait_info lwi; if (oti && oti->oti_thread && oti->oti_thread->t_watchdog) lc_watchdog_touch(oti->oti_thread->t_watchdog, CFS_GET_TIMEOUT(oti->oti_thread->t_svc)); CDEBUG(D_QUOTA, "rc: %d, count_err: %d\n", rc, count_err++); cfs_waitq_init(&waitq); lwi = LWI_TIMEOUT(cfs_time_seconds(min(cycle, 10)), NULL, NULL); l_wait_event(waitq, 0, &lwi); } if (rc < 0 || cycle % 10 == 0) { cfs_spin_lock(&last_print_lock); if (last_print == 0 || cfs_time_before((last_print + cfs_time_seconds(30)), cfs_time_current())) { last_print = cfs_time_current(); cfs_spin_unlock(&last_print_lock); CWARN("still haven't managed to acquire quota " "space from the quota master after %d " "retries (err=%d, rc=%d)\n", cycle, count_err - 1, rc); } else { cfs_spin_unlock(&last_print_lock); } } CDEBUG(D_QUOTA, "recheck quota with rc: %d, cycle: %d\n", rc, cycle); } cfs_gettimeofday(&work_end); timediff = cfs_timeval_sub(&work_end, &work_start, NULL); lprocfs_counter_add(qctxt->lqc_stats, isblk ? LQUOTA_WAIT_FOR_CHK_BLK : LQUOTA_WAIT_FOR_CHK_INO, timediff); if (rc > 0) rc = 0; RETURN(rc); }