X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fost%2Fost_handler.c;h=baab8be4676df515fed40f342152ab00750a14b7;hp=6712d4c1c56dc49e628fbfb4d73a516a2cfb8804;hb=96c0696453f3aaf5c29a46fd7c6f0bdc25301d71;hpb=88cbf2754651d051288a2b68ff0cf27aea6b502a diff --git a/lustre/ost/ost_handler.c b/lustre/ost/ost_handler.c index 6712d4c..baab8be 100644 --- a/lustre/ost/ost_handler.c +++ b/lustre/ost/ost_handler.c @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -26,8 +24,10 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2011, 2013, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -39,22 +39,12 @@ * Author: Phil Schwan */ -#ifndef EXPORT_SYMTAB -# define EXPORT_SYMTAB -#endif #define DEBUG_SUBSYSTEM S_OST #include -#include #include -#include #include -#include -#include -#include #include -#include -#include #include "ost_internal.h" static int oss_num_threads; @@ -69,2491 +59,422 @@ static int oss_num_create_threads; CFS_MODULE_PARM(oss_num_create_threads, "i", int, 0444, "number of OSS create threads to start"); -/** - * Do not return server-side uid/gid to remote client - */ -static void ost_drop_id(struct obd_export *exp, struct obdo *oa) -{ - if (exp_connect_rmtclient(exp)) { - oa->o_uid = -1; - oa->o_gid = -1; - oa->o_valid &= ~(OBD_MD_FLUID | OBD_MD_FLGID); - } -} - -void oti_to_request(struct obd_trans_info *oti, struct ptlrpc_request *req) -{ - struct oti_req_ack_lock *ack_lock; - int i; - - if (oti == NULL) - return; - - if (req->rq_repmsg) { - __u64 versions[PTLRPC_NUM_VERSIONS] = { 0 }; - lustre_msg_set_transno(req->rq_repmsg, oti->oti_transno); - versions[0] = oti->oti_pre_version; - lustre_msg_set_versions(req->rq_repmsg, versions); - } - req->rq_transno = oti->oti_transno; - - /* XXX 4 == entries in oti_ack_locks??? */ - for (ack_lock = oti->oti_ack_locks, i = 0; i < 4; i++, ack_lock++) { - if (!ack_lock->mode) - break; - /* XXX not even calling target_send_reply in some cases... */ - ptlrpc_save_lock (req, &ack_lock->lock, ack_lock->mode, 0); - } -} - -static int ost_destroy(struct obd_export *exp, struct ptlrpc_request *req, - struct obd_trans_info *oti) -{ - struct ost_body *body, *repbody; - struct lustre_capa *capa = NULL; - int rc; - ENTRY; - - /* Get the request body */ - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); - - if (body->oa.o_id == 0) - RETURN(-EPROTO); - - /* If there's a DLM request, cancel the locks mentioned in it*/ - if (req_capsule_field_present(&req->rq_pill, &RMF_DLM_REQ, RCL_CLIENT)) { - struct ldlm_request *dlm; - - dlm = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ); - if (dlm == NULL) - RETURN (-EFAULT); - ldlm_request_cancel(req, dlm, 0); - } - - /* If there's a capability, get it */ - if (body->oa.o_valid & OBD_MD_FLOSSCAPA) { - capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1); - if (capa == NULL) { - CERROR("Missing capability for OST DESTROY"); - RETURN (-EFAULT); - } - } - - /* Prepare the reply */ - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - - /* Get the log cancellation cookie */ - if (body->oa.o_valid & OBD_MD_FLCOOKIE) - oti->oti_logcookies = &body->oa.o_lcookie; - - /* Finish the reply */ - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - memcpy(&repbody->oa, &body->oa, sizeof(body->oa)); - - /* Do the destroy and set the reply status accordingly */ - req->rq_status = obd_destroy(exp, &body->oa, NULL, oti, NULL, capa); - RETURN(0); -} - -/** - * Helper function for getting server side [start, start+count] DLM lock - * if asked by client. - */ -static int ost_lock_get(struct obd_export *exp, struct obdo *oa, - __u64 start, __u64 count, struct lustre_handle *lh, - int mode, int flags) -{ - struct ldlm_res_id res_id = { .name = { oa->o_id, 0, oa->o_gr, 0} }; - ldlm_policy_data_t policy; - __u64 end = start + count; - - ENTRY; - - LASSERT(!lustre_handle_is_used(lh)); - LASSERT((oa->o_valid & (OBD_MD_FLID | OBD_MD_FLGROUP)) == - (OBD_MD_FLID | OBD_MD_FLGROUP)); - - if (!(oa->o_valid & OBD_MD_FLFLAGS) || - !(oa->o_flags & OBD_FL_SRVLOCK)) - RETURN(0); - - CDEBUG(D_INODE, "OST-side extent lock.\n"); - - policy.l_extent.start = start & CFS_PAGE_MASK; - - /* If ->o_blocks is EOF it means "lock till the end of the - * file". Otherwise, it's size of a hole being punched (in bytes) */ - if (count == OBD_OBJECT_EOF || end < start) - policy.l_extent.end = OBD_OBJECT_EOF; - else - policy.l_extent.end = end | ~CFS_PAGE_MASK; - - RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id, - LDLM_EXTENT, &policy, mode, &flags, - ldlm_blocking_ast, ldlm_completion_ast, - ldlm_glimpse_ast, NULL, 0, NULL, lh)); -} - -/* Helper function: release lock, if any. */ -static void ost_lock_put(struct obd_export *exp, - struct lustre_handle *lh, int mode) -{ - ENTRY; - if (lustre_handle_is_used(lh)) - ldlm_lock_decref(lh, mode); - EXIT; -} - -static int ost_getattr(struct obd_export *exp, struct ptlrpc_request *req) -{ - struct ost_body *body, *repbody; - struct obd_info oinfo = { { { 0 } } }; - struct lustre_handle lh = { 0 }; - int rc; - ENTRY; - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - repbody->oa = body->oa; - - rc = ost_lock_get(exp, &body->oa, 0, OBD_OBJECT_EOF, &lh, LCK_PR, 0); - if (rc) - RETURN(rc); - - oinfo.oi_oa = &repbody->oa; - if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA) { - oinfo.oi_capa = req_capsule_client_get(&req->rq_pill, - &RMF_CAPA1); - if (oinfo.oi_capa == NULL) { - CERROR("Missing capability for OST GETATTR"); - RETURN (-EFAULT); - } - } - - req->rq_status = obd_getattr(exp, &oinfo); - ost_lock_put(exp, &lh, LCK_PR); - - ost_drop_id(exp, &repbody->oa); - RETURN(0); -} - -static int ost_statfs(struct ptlrpc_request *req) -{ - struct obd_statfs *osfs; - int rc; - ENTRY; - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - - osfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS); - - req->rq_status = obd_statfs(req->rq_export->exp_obd, osfs, - cfs_time_current_64() - CFS_HZ, 0); - if (req->rq_status != 0) - CERROR("ost: statfs failed: rc %d\n", req->rq_status); +static char *oss_cpts; +CFS_MODULE_PARM(oss_cpts, "s", charp, 0444, + "CPU partitions OSS threads should run on"); - RETURN(0); -} - -static int ost_create(struct obd_export *exp, struct ptlrpc_request *req, - struct obd_trans_info *oti) -{ - struct ost_body *body, *repbody; - int rc; - ENTRY; +static char *oss_io_cpts; +CFS_MODULE_PARM(oss_io_cpts, "s", charp, 0444, + "CPU partitions OSS IO threads should run on"); - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); +#define OST_WATCHDOG_TIMEOUT (obd_timeout * 1000) - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); +static struct cfs_cpt_table *ost_io_cptable; - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - memcpy(&repbody->oa, &body->oa, sizeof(body->oa)); - oti->oti_logcookies = &repbody->oa.o_lcookie; +#ifdef LPROCFS +LPROC_SEQ_FOPS_RO_TYPE(ost, uuid); - req->rq_status = obd_create(exp, &repbody->oa, NULL, oti); - //obd_log_cancel(conn, NULL, 1, oti->oti_logcookies, 0); - RETURN(0); -} +static struct lprocfs_seq_vars lprocfs_ost_obd_vars[] = { + { .name = "uuid", + .fops = &ost_uuid_fops }, + { 0 } +}; +#endif /* LPROCFS */ -static int ost_punch(struct obd_export *exp, struct ptlrpc_request *req, - struct obd_trans_info *oti) +/* Sigh - really, this is an OSS, the _server_, not the _target_ */ +static int ost_setup(struct obd_device *obd, struct lustre_cfg* lcfg) { - struct obd_info oinfo = { { { 0 } } }; - struct ost_body *body, *repbody; - int rc, flags = 0; - struct lustre_handle lh = {0,}; - ENTRY; - - /* check that we do support OBD_CONNECT_TRUNCLOCK. */ - CLASSERT(OST_CONNECT_SUPPORTED & OBD_CONNECT_TRUNCLOCK); - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); + static struct ptlrpc_service_conf svc_conf; + struct ost_obd *ost = &obd->u.ost; + nodemask_t *mask; + int rc; + ENTRY; - oinfo.oi_oa = &body->oa; - oinfo.oi_policy.l_extent.start = oinfo.oi_oa->o_size; - oinfo.oi_policy.l_extent.end = oinfo.oi_oa->o_blocks; - - if ((oinfo.oi_oa->o_valid & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) != - (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) - RETURN(-EPROTO); - - rc = req_capsule_server_pack(&req->rq_pill); + rc = cfs_cleanup_group_info(); if (rc) RETURN(rc); - /* standard truncate optimization: if file body is completely - * destroyed, don't send data back to the server. */ - if (oinfo.oi_oa->o_size == 0) - flags |= LDLM_AST_DISCARD_DATA; - - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - rc = ost_lock_get(exp, oinfo.oi_oa, oinfo.oi_oa->o_size, - oinfo.oi_oa->o_blocks, &lh, LCK_PW, flags); - if (rc == 0) { - if (oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS && - oinfo.oi_oa->o_flags == OBD_FL_SRVLOCK) - /* - * If OBD_FL_SRVLOCK is the only bit set in - * ->o_flags, clear OBD_MD_FLFLAGS to avoid falling - * through filter_setattr() to filter_iocontrol(). - */ - oinfo.oi_oa->o_valid &= ~OBD_MD_FLFLAGS; - - if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA) { - oinfo.oi_capa = req_capsule_client_get(&req->rq_pill, - &RMF_CAPA1); - if (oinfo.oi_capa == NULL) { - CERROR("Missing capability for OST PUNCH"); - RETURN (-EFAULT); - } - } - req->rq_status = obd_punch(exp, &oinfo, oti, NULL); - ost_lock_put(exp, &lh, LCK_PW); - } - repbody->oa = *oinfo.oi_oa; - ost_drop_id(exp, &repbody->oa); +#ifdef LPROCFS + obd->obd_vars = lprocfs_ost_obd_vars; + lprocfs_seq_obd_setup(obd); +#endif + mutex_init(&ost->ost_health_mutex); + + svc_conf = (typeof(svc_conf)) { + .psc_name = LUSTRE_OSS_NAME, + .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR, + .psc_buf = { + .bc_nbufs = OST_NBUFS, + .bc_buf_size = OST_BUFSIZE, + .bc_req_max_size = OST_MAXREQSIZE, + .bc_rep_max_size = OST_MAXREPSIZE, + .bc_req_portal = OST_REQUEST_PORTAL, + .bc_rep_portal = OSC_REPLY_PORTAL, + }, + .psc_thr = { + .tc_thr_name = "ll_ost", + .tc_thr_factor = OSS_THR_FACTOR, + .tc_nthrs_init = OSS_NTHRS_INIT, + .tc_nthrs_base = OSS_NTHRS_BASE, + .tc_nthrs_max = OSS_NTHRS_MAX, + .tc_nthrs_user = oss_num_threads, + .tc_cpu_affinity = 1, + .tc_ctx_tags = LCT_DT_THREAD, + }, + .psc_cpt = { + .cc_pattern = oss_cpts, + }, + .psc_ops = { + .so_req_handler = tgt_request_handle, + .so_req_printer = target_print_req, + .so_hpreq_handler = ptlrpc_hpreq_handler, + }, + }; + ost->ost_service = ptlrpc_register_service(&svc_conf, + obd->obd_proc_entry); + if (IS_ERR(ost->ost_service)) { + rc = PTR_ERR(ost->ost_service); + CERROR("failed to start service: %d\n", rc); + GOTO(out_lprocfs, rc); + } + + memset(&svc_conf, 0, sizeof(svc_conf)); + svc_conf = (typeof(svc_conf)) { + .psc_name = "ost_create", + .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR, + .psc_buf = { + .bc_nbufs = OST_NBUFS, + .bc_buf_size = OST_BUFSIZE, + .bc_req_max_size = OST_MAXREQSIZE, + .bc_rep_max_size = OST_MAXREPSIZE, + .bc_req_portal = OST_CREATE_PORTAL, + .bc_rep_portal = OSC_REPLY_PORTAL, + }, + .psc_thr = { + .tc_thr_name = "ll_ost_create", + .tc_thr_factor = OSS_CR_THR_FACTOR, + .tc_nthrs_init = OSS_CR_NTHRS_INIT, + .tc_nthrs_base = OSS_CR_NTHRS_BASE, + .tc_nthrs_max = OSS_CR_NTHRS_MAX, + .tc_nthrs_user = oss_num_create_threads, + .tc_cpu_affinity = 1, + .tc_ctx_tags = LCT_DT_THREAD, + }, + .psc_cpt = { + .cc_pattern = oss_cpts, + }, + .psc_ops = { + .so_req_handler = tgt_request_handle, + .so_req_printer = target_print_req, + }, + }; + ost->ost_create_service = ptlrpc_register_service(&svc_conf, + obd->obd_proc_entry); + if (IS_ERR(ost->ost_create_service)) { + rc = PTR_ERR(ost->ost_create_service); + CERROR("failed to start OST create service: %d\n", rc); + GOTO(out_service, rc); + } + + mask = cfs_cpt_nodemask(cfs_cpt_table, CFS_CPT_ANY); + /* event CPT feature is disabled in libcfs level by set partition + * number to 1, we still want to set node affinity for io service */ + if (cfs_cpt_number(cfs_cpt_table) == 1 && nodes_weight(*mask) > 1) { + int cpt = 0; + int i; + + ost_io_cptable = cfs_cpt_table_alloc(nodes_weight(*mask)); + for_each_node_mask(i, *mask) { + if (ost_io_cptable == NULL) { + CWARN("OSS failed to create CPT table\n"); + break; + } + + rc = cfs_cpt_set_node(ost_io_cptable, cpt++, i); + if (!rc) { + CWARN("OSS Failed to set node %d for" + "IO CPT table\n", i); + cfs_cpt_table_free(ost_io_cptable); + ost_io_cptable = NULL; + break; + } + } + } + + memset(&svc_conf, 0, sizeof(svc_conf)); + svc_conf = (typeof(svc_conf)) { + .psc_name = "ost_io", + .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR, + .psc_buf = { + .bc_nbufs = OST_NBUFS, + .bc_buf_size = OST_IO_BUFSIZE, + .bc_req_max_size = OST_IO_MAXREQSIZE, + .bc_rep_max_size = OST_IO_MAXREPSIZE, + .bc_req_portal = OST_IO_PORTAL, + .bc_rep_portal = OSC_REPLY_PORTAL, + }, + .psc_thr = { + .tc_thr_name = "ll_ost_io", + .tc_thr_factor = OSS_THR_FACTOR, + .tc_nthrs_init = OSS_NTHRS_INIT, + .tc_nthrs_base = OSS_NTHRS_BASE, + .tc_nthrs_max = OSS_NTHRS_MAX, + .tc_nthrs_user = oss_num_threads, + .tc_cpu_affinity = 1, + .tc_ctx_tags = LCT_DT_THREAD, + }, + .psc_cpt = { + .cc_cptable = ost_io_cptable, + .cc_pattern = ost_io_cptable == NULL ? + oss_io_cpts : NULL, + }, + .psc_ops = { + .so_thr_init = tgt_io_thread_init, + .so_thr_done = tgt_io_thread_done, + .so_req_handler = tgt_request_handle, + .so_hpreq_handler = tgt_hpreq_handler, + .so_req_printer = target_print_req, + }, + }; + ost->ost_io_service = ptlrpc_register_service(&svc_conf, + obd->obd_proc_entry); + if (IS_ERR(ost->ost_io_service)) { + rc = PTR_ERR(ost->ost_io_service); + CERROR("failed to start OST I/O service: %d\n", rc); + ost->ost_io_service = NULL; + GOTO(out_create, rc); + } + + memset(&svc_conf, 0, sizeof(svc_conf)); + svc_conf = (typeof(svc_conf)) { + .psc_name = "ost_seq", + .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR, + .psc_buf = { + .bc_nbufs = OST_NBUFS, + .bc_buf_size = OST_BUFSIZE, + .bc_req_max_size = OST_MAXREQSIZE, + .bc_rep_max_size = OST_MAXREPSIZE, + .bc_req_portal = SEQ_DATA_PORTAL, + .bc_rep_portal = OSC_REPLY_PORTAL, + }, + .psc_thr = { + .tc_thr_name = "ll_ost_seq", + .tc_thr_factor = OSS_CR_THR_FACTOR, + .tc_nthrs_init = OSS_CR_NTHRS_INIT, + .tc_nthrs_base = OSS_CR_NTHRS_BASE, + .tc_nthrs_max = OSS_CR_NTHRS_MAX, + .tc_nthrs_user = oss_num_create_threads, + .tc_cpu_affinity = 1, + .tc_ctx_tags = LCT_DT_THREAD, + }, + + .psc_cpt = { + .cc_pattern = oss_cpts, + }, + .psc_ops = { + .so_req_handler = tgt_request_handle, + .so_req_printer = target_print_req, + .so_hpreq_handler = NULL, + }, + }; + ost->ost_seq_service = ptlrpc_register_service(&svc_conf, + obd->obd_proc_entry); + if (IS_ERR(ost->ost_seq_service)) { + rc = PTR_ERR(ost->ost_seq_service); + CERROR("failed to start OST seq service: %d\n", rc); + ost->ost_seq_service = NULL; + GOTO(out_io, rc); + } + + /* Object update service */ + memset(&svc_conf, 0, sizeof(svc_conf)); + svc_conf = (typeof(svc_conf)) { + .psc_name = "ost_out", + .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR, + .psc_buf = { + .bc_nbufs = OST_NBUFS, + .bc_buf_size = OUT_BUFSIZE, + .bc_req_max_size = OUT_MAXREQSIZE, + .bc_rep_max_size = OUT_MAXREPSIZE, + .bc_req_portal = OUT_PORTAL, + .bc_rep_portal = OSC_REPLY_PORTAL, + }, + /* + * We'd like to have a mechanism to set this on a per-device + * basis, but alas... + */ + .psc_thr = { + .tc_thr_name = "ll_ost_out", + .tc_thr_factor = OSS_CR_THR_FACTOR, + .tc_nthrs_init = OSS_CR_NTHRS_INIT, + .tc_nthrs_base = OSS_CR_NTHRS_BASE, + .tc_nthrs_max = OSS_CR_NTHRS_MAX, + .tc_nthrs_user = oss_num_create_threads, + .tc_cpu_affinity = 1, + .tc_ctx_tags = LCT_MD_THREAD | + LCT_DT_THREAD, + }, + .psc_cpt = { + .cc_pattern = oss_cpts, + }, + .psc_ops = { + .so_req_handler = tgt_request_handle, + .so_req_printer = target_print_req, + .so_hpreq_handler = NULL, + }, + }; + ost->ost_out_service = ptlrpc_register_service(&svc_conf, + obd->obd_proc_entry); + if (IS_ERR(ost->ost_out_service)) { + rc = PTR_ERR(ost->ost_out_service); + CERROR("failed to start out service: %d\n", rc); + ost->ost_out_service = NULL; + GOTO(out_seq, rc); + } + + /* Index read service */ + memset(&svc_conf, 0, sizeof(svc_conf)); + svc_conf = (typeof(svc_conf)) { + .psc_name = "ost_idx_read", + .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR, + .psc_buf = { + .bc_nbufs = OST_NBUFS, + .bc_buf_size = OST_BUFSIZE, + .bc_req_max_size = OST_MAXREQSIZE, + .bc_rep_max_size = OST_MAXREPSIZE, + .bc_req_portal = OST_IDX_PORTAL, + .bc_rep_portal = OSC_REPLY_PORTAL, + }, + .psc_thr = { + .tc_thr_name = "ll_ost_idx", + .tc_thr_factor = OSS_CR_THR_FACTOR, + .tc_nthrs_init = OSS_CR_NTHRS_INIT, + .tc_nthrs_base = OSS_CR_NTHRS_BASE, + .tc_nthrs_max = OSS_CR_NTHRS_MAX, + .tc_nthrs_user = oss_num_create_threads, + .tc_cpu_affinity = 1, + .tc_ctx_tags = LCT_DT_THREAD, + }, + .psc_cpt = { + .cc_pattern = oss_cpts, + }, + .psc_ops = { + .so_req_handler = tgt_request_handle, + .so_req_printer = target_print_req, + }, + }; + ost->ost_idx_service = ptlrpc_register_service(&svc_conf, + obd->obd_proc_entry); + if (IS_ERR(ost->ost_idx_service)) { + rc = PTR_ERR(ost->ost_idx_service); + CERROR("failed to start OST index read service: rc = %d\n", rc); + ost->ost_idx_service = NULL; + GOTO(out_out, rc); + } + + ping_evictor_start(); + + RETURN(0); + +out_out: + ptlrpc_unregister_service(ost->ost_out_service); + ost->ost_out_service = NULL; +out_seq: + ptlrpc_unregister_service(ost->ost_seq_service); + ost->ost_seq_service = NULL; +out_io: + ptlrpc_unregister_service(ost->ost_io_service); + ost->ost_io_service = NULL; +out_create: + ptlrpc_unregister_service(ost->ost_create_service); + ost->ost_create_service = NULL; +out_service: + ptlrpc_unregister_service(ost->ost_service); + ost->ost_service = NULL; +out_lprocfs: + lprocfs_obd_cleanup(obd); RETURN(rc); } -static int ost_sync(struct obd_export *exp, struct ptlrpc_request *req) -{ - struct ost_body *body, *repbody; - struct lustre_capa *capa = NULL; - int rc; - ENTRY; - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); - - if (body->oa.o_valid & OBD_MD_FLOSSCAPA) { - capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1); - if (capa == NULL) { - CERROR("Missing capability for OST SYNC"); - RETURN (-EFAULT); - } - } - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - memcpy(&repbody->oa, &body->oa, sizeof(body->oa)); - req->rq_status = obd_sync(exp, &repbody->oa, NULL, repbody->oa.o_size, - repbody->oa.o_blocks, capa); - ost_drop_id(exp, &repbody->oa); - RETURN(0); -} - -static int ost_setattr(struct obd_export *exp, struct ptlrpc_request *req, - struct obd_trans_info *oti) -{ - struct ost_body *body, *repbody; - int rc; - struct obd_info oinfo = { { { 0 } } }; - ENTRY; - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - repbody->oa = body->oa; - - oinfo.oi_oa = &repbody->oa; - if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA) { - oinfo.oi_capa = req_capsule_client_get(&req->rq_pill, - &RMF_CAPA1); - if (oinfo.oi_capa == NULL) { - CERROR("Missing capability for OST SETATTR"); - RETURN (-EFAULT); - } - } - req->rq_status = obd_setattr(exp, &oinfo, oti); - ost_drop_id(exp, &repbody->oa); - RETURN(0); -} - -static int ost_bulk_timeout(void *data) -{ - ENTRY; - /* We don't fail the connection here, because having the export - * killed makes the (vital) call to commitrw very sad. - */ - RETURN(1); -} - -static __u32 ost_checksum_bulk(struct ptlrpc_bulk_desc *desc, int opc, - cksum_type_t cksum_type) -{ - __u32 cksum; - int i; - - cksum = init_checksum(cksum_type); - for (i = 0; i < desc->bd_iov_count; i++) { - struct page *page = desc->bd_iov[i].kiov_page; - int off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK; - char *ptr = kmap(page) + off; - int len = desc->bd_iov[i].kiov_len; - - /* corrupt the data before we compute the checksum, to - * simulate a client->OST data error */ - if (i == 0 && opc == OST_WRITE && - OBD_FAIL_CHECK(OBD_FAIL_OST_CHECKSUM_RECEIVE)) - memcpy(ptr, "bad3", min(4, len)); - cksum = compute_checksum(cksum, ptr, len, cksum_type); - /* corrupt the data after we compute the checksum, to - * simulate an OST->client data error */ - if (i == 0 && opc == OST_READ && - OBD_FAIL_CHECK(OBD_FAIL_OST_CHECKSUM_SEND)) { - memcpy(ptr, "bad4", min(4, len)); - /* nobody should use corrupted page again */ - ClearPageUptodate(page); - } - kunmap(page); - } - - return cksum; -} - -static int ost_brw_lock_get(int mode, struct obd_export *exp, - struct obd_ioobj *obj, struct niobuf_remote *nb, - struct lustre_handle *lh) -{ - int flags = 0; - int nrbufs = obj->ioo_bufcnt; - struct ldlm_res_id res_id; - ldlm_policy_data_t policy; - int i; - ENTRY; - - osc_build_res_name(obj->ioo_id, obj->ioo_gr, &res_id); - LASSERT(mode == LCK_PR || mode == LCK_PW); - LASSERT(!lustre_handle_is_used(lh)); - - if (nrbufs == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK)) - RETURN(0); - - for (i = 1; i < nrbufs; i ++) - if ((nb[0].flags & OBD_BRW_SRVLOCK) != - (nb[i].flags & OBD_BRW_SRVLOCK)) - RETURN(-EFAULT); - - policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK; - policy.l_extent.end = (nb[nrbufs - 1].offset + - nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK; - - RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id, - LDLM_EXTENT, &policy, mode, &flags, - ldlm_blocking_ast, ldlm_completion_ast, - ldlm_glimpse_ast, NULL, 0, NULL, lh)); -} - -static void ost_brw_lock_put(int mode, - struct obd_ioobj *obj, struct niobuf_remote *niob, - struct lustre_handle *lh) -{ - ENTRY; - LASSERT(mode == LCK_PR || mode == LCK_PW); - LASSERT((obj->ioo_bufcnt > 0 && (niob[0].flags & OBD_BRW_SRVLOCK)) == - lustre_handle_is_used(lh)); - if (lustre_handle_is_used(lh)) - ldlm_lock_decref(lh, mode); - EXIT; -} - -struct ost_prolong_data { - struct obd_export *opd_exp; - ldlm_policy_data_t opd_policy; - struct obdo *opd_oa; - ldlm_mode_t opd_mode; - int opd_lock_match; - int opd_timeout; -}; - -static int ost_prolong_locks_iter(struct ldlm_lock *lock, void *data) -{ - struct ost_prolong_data *opd = data; - - LASSERT(lock->l_resource->lr_type == LDLM_EXTENT); - - if (lock->l_req_mode != lock->l_granted_mode) { - /* scan granted locks only */ - return LDLM_ITER_STOP; - } - - if (lock->l_export != opd->opd_exp) { - /* prolong locks only for given client */ - return LDLM_ITER_CONTINUE; - } - - if (!(lock->l_granted_mode & opd->opd_mode)) { - /* we aren't interesting in all type of locks */ - return LDLM_ITER_CONTINUE; - } - - if (lock->l_policy_data.l_extent.end < opd->opd_policy.l_extent.start || - lock->l_policy_data.l_extent.start > opd->opd_policy.l_extent.end) { - /* the request doesn't cross the lock, skip it */ - return LDLM_ITER_CONTINUE; - } - - /* Fill the obdo with the matched lock handle. - * XXX: it is possible in some cases the IO RPC is covered by several - * locks, even for the write case, so it may need to be a lock list. */ - if (opd->opd_oa && !(opd->opd_oa->o_valid & OBD_MD_FLHANDLE)) { - opd->opd_oa->o_handle.cookie = lock->l_handle.h_cookie; - opd->opd_oa->o_valid |= OBD_MD_FLHANDLE; - } - - if (!(lock->l_flags & LDLM_FL_AST_SENT)) { - /* ignore locks not being cancelled */ - return LDLM_ITER_CONTINUE; - } - - CDEBUG(D_DLMTRACE,"refresh lock: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n", - lock->l_resource->lr_name.name[0], - lock->l_resource->lr_name.name[1], - opd->opd_policy.l_extent.start, opd->opd_policy.l_extent.end); - /* OK. this is a possible lock the user holds doing I/O - * let's refresh eviction timer for it */ - ldlm_refresh_waiting_lock(lock, opd->opd_timeout); - opd->opd_lock_match = 1; - - return LDLM_ITER_CONTINUE; -} - -static int ost_rw_prolong_locks(struct ptlrpc_request *req, struct obd_ioobj *obj, - struct niobuf_remote *nb, struct obdo *oa, - ldlm_mode_t mode) +static int ost_cleanup(struct obd_device *obd) { - struct ldlm_res_id res_id; - int nrbufs = obj->ioo_bufcnt; - struct ost_prolong_data opd = { 0 }; - ENTRY; - - osc_build_res_name(obj->ioo_id, obj->ioo_gr, &res_id); + struct ost_obd *ost = &obd->u.ost; + int err = 0; + ENTRY; - opd.opd_mode = mode; - opd.opd_exp = req->rq_export; - opd.opd_policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK; - opd.opd_policy.l_extent.end = (nb[nrbufs - 1].offset + - nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK; + ping_evictor_stop(); - /* prolong locks for the current service time of the corresponding - * portal (= OST_IO_PORTAL) */ - opd.opd_timeout = AT_OFF ? obd_timeout / 2: - max(at_est2timeout(at_get(&req->rq_rqbd-> - rqbd_service->srv_at_estimate)), ldlm_timeout); + /* there is no recovery for OST OBD, all recovery is controlled by + * obdfilter OBD */ + LASSERT(obd->obd_recovering == 0); + mutex_lock(&ost->ost_health_mutex); + ptlrpc_unregister_service(ost->ost_service); + ptlrpc_unregister_service(ost->ost_create_service); + ptlrpc_unregister_service(ost->ost_io_service); + ptlrpc_unregister_service(ost->ost_seq_service); + ptlrpc_unregister_service(ost->ost_out_service); + ptlrpc_unregister_service(ost->ost_idx_service); - CDEBUG(D_INFO,"refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n", - res_id.name[0], res_id.name[1], opd.opd_policy.l_extent.start, - opd.opd_policy.l_extent.end); + ost->ost_service = NULL; + ost->ost_create_service = NULL; + ost->ost_io_service = NULL; + ost->ost_seq_service = NULL; + ost->ost_out_service = NULL; + ost->ost_idx_service = NULL; - if (oa->o_valid & OBD_MD_FLHANDLE) { - struct ldlm_lock *lock; + mutex_unlock(&ost->ost_health_mutex); - lock = ldlm_handle2lock(&oa->o_handle); - if (lock != NULL) { - ost_prolong_locks_iter(lock, &opd); - if (opd.opd_lock_match) { - LDLM_LOCK_PUT(lock); - RETURN(1); - } + lprocfs_obd_cleanup(obd); - /* Check if the lock covers the whole IO region, - * otherwise iterate through the resource. */ - if (lock->l_policy_data.l_extent.end >= - opd.opd_policy.l_extent.end && - lock->l_policy_data.l_extent.start <= - opd.opd_policy.l_extent.start) { - LDLM_LOCK_PUT(lock); - RETURN(0); - } - LDLM_LOCK_PUT(lock); - } - } - - opd.opd_oa = oa; - ldlm_resource_iterate(req->rq_export->exp_obd->obd_namespace, &res_id, - ost_prolong_locks_iter, &opd); - RETURN(opd.opd_lock_match); -} - -/* Allocate thread local buffers if needed */ -static struct ost_thread_local_cache *ost_tls_get(struct ptlrpc_request *r) -{ - struct ost_thread_local_cache *tls = - (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data); - - /* In normal mode of operation an I/O request is serviced only - * by ll_ost_io threads each of them has own tls buffers allocated by - * ost_thread_init(). - * During recovery, an I/O request may be queued until any of the ost - * service threads process it. Not necessary it should be one of - * ll_ost_io threads. In that case we dynamically allocating tls - * buffers for the request service time. */ - if (unlikely(tls == NULL)) { - LASSERT(r->rq_export->exp_in_recovery); - OBD_ALLOC_PTR(tls); - if (tls != NULL) { - tls->temporary = 1; - r->rq_svc_thread->t_data = tls; - } - } - return tls; -} + if (ost_io_cptable != NULL) { + cfs_cpt_table_free(ost_io_cptable); + ost_io_cptable = NULL; + } -/* Free thread local buffers if they were allocated only for servicing - * this one request */ -static void ost_tls_put(struct ptlrpc_request *r) -{ - struct ost_thread_local_cache *tls = - (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data); - - if (unlikely(tls->temporary)) { - OBD_FREE_PTR(tls); - r->rq_svc_thread->t_data = NULL; - } + RETURN(err); } -static int ost_brw_read(struct ptlrpc_request *req, struct obd_trans_info *oti) +static int ost_health_check(const struct lu_env *env, struct obd_device *obd) { - struct ptlrpc_bulk_desc *desc = NULL; - struct obd_export *exp = req->rq_export; - struct niobuf_remote *remote_nb; - struct niobuf_local *local_nb; - struct obd_ioobj *ioo; - struct ost_body *body, *repbody; - struct lustre_capa *capa = NULL; - struct l_wait_info lwi; - struct lustre_handle lockh = { 0 }; - int niocount, npages, nob = 0, rc, i; - int no_reply = 0; - struct ost_thread_local_cache *tls; - ENTRY; - - req->rq_bulk_read = 1; - - if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_READ_BULK)) - GOTO(out, rc = -EIO); - - OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4); - - /* Check if there is eviction in progress, and if so, wait for it to - * finish */ - if (unlikely(cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress))) { - lwi = LWI_INTR(NULL, NULL); // We do not care how long it takes - rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq, - !cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress), - &lwi); - } - if (exp->exp_failed) - GOTO(out, rc = -ENOTCONN); - - /* ost_body, ioobj & noibuf_remote are verified and swabbed in - * ost_rw_hpreq_check(). */ - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - GOTO(out, rc = -EFAULT); - - /* - * A req_capsule_X_get_array(pill, field, ptr_to_element_count) function - * would be useful here and wherever we get &RMF_OBD_IOOBJ and - * &RMF_NIOBUF_REMOTE. - */ - ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ); - if (ioo == NULL) - GOTO(out, rc = -EFAULT); - - niocount = ioo->ioo_bufcnt; - remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE); - if (remote_nb == NULL) - GOTO(out, rc = -EFAULT); - - if (body->oa.o_valid & OBD_MD_FLOSSCAPA) { - capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1); - if (capa == NULL) { - CERROR("Missing capability for OST BRW READ"); - GOTO(out, rc = -EFAULT); - } - } - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - GOTO(out, rc); - - tls = ost_tls_get(req); - if (tls == NULL) - GOTO(out_bulk, rc = -ENOMEM); - local_nb = tls->local; + struct ost_obd *ost = &obd->u.ost; + int rc = 0; - rc = ost_brw_lock_get(LCK_PR, exp, ioo, remote_nb, &lockh); - if (rc != 0) - GOTO(out_tls, rc); + mutex_lock(&ost->ost_health_mutex); + rc |= ptlrpc_service_health_check(ost->ost_service); + rc |= ptlrpc_service_health_check(ost->ost_create_service); + rc |= ptlrpc_service_health_check(ost->ost_io_service); + mutex_unlock(&ost->ost_health_mutex); /* - * If getting the lock took more time than - * client was willing to wait, drop it. b=11330 + * health_check to return 0 on healthy + * and 1 on unhealthy. */ - if (cfs_time_current_sec() > req->rq_deadline || - OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) { - no_reply = 1; - CERROR("Dropping timed-out read from %s because locking" - "object "LPX64" took %ld seconds (limit was %ld).\n", - libcfs_id2str(req->rq_peer), ioo->ioo_id, - cfs_time_current_sec() - req->rq_arrival_time.tv_sec, - req->rq_deadline - req->rq_arrival_time.tv_sec); - GOTO(out_lock, rc = -ETIMEDOUT); - } - - npages = OST_THREAD_POOL_SIZE; - rc = obd_preprw(OBD_BRW_READ, exp, &body->oa, 1, ioo, - remote_nb, &npages, local_nb, oti, capa); - if (rc != 0) - GOTO(out_lock, rc); - - desc = ptlrpc_prep_bulk_exp(req, npages, - BULK_PUT_SOURCE, OST_BULK_PORTAL); - if (desc == NULL) - GOTO(out_lock, rc = -ENOMEM); - - if (!lustre_handle_is_used(&lockh)) - /* no needs to try to prolong lock if server is asked - * to handle locking (= OBD_BRW_SRVLOCK) */ - ost_rw_prolong_locks(req, ioo, remote_nb, &body->oa, - LCK_PW | LCK_PR); - - nob = 0; - for (i = 0; i < npages; i++) { - int page_rc = local_nb[i].rc; - - if (page_rc < 0) { /* error */ - rc = page_rc; - break; - } - - nob += page_rc; - if (page_rc != 0) { /* some data! */ - LASSERT (local_nb[i].page != NULL); - ptlrpc_prep_bulk_page(desc, local_nb[i].page, - local_nb[i].offset & ~CFS_PAGE_MASK, - page_rc); - } - - if (page_rc != local_nb[i].len) { /* short read */ - /* All subsequent pages should be 0 */ - while(++i < npages) - LASSERT(local_nb[i].rc == 0); - break; - } - } - - if (body->oa.o_valid & OBD_MD_FLCKSUM) { - cksum_type_t cksum_type = OBD_CKSUM_CRC32; - - if (body->oa.o_valid & OBD_MD_FLFLAGS) - cksum_type = cksum_type_unpack(body->oa.o_flags); - body->oa.o_flags = cksum_type_pack(cksum_type); - body->oa.o_valid = OBD_MD_FLCKSUM | OBD_MD_FLFLAGS; - body->oa.o_cksum = ost_checksum_bulk(desc, OST_READ, cksum_type); - CDEBUG(D_PAGE,"checksum at read origin: %x\n",body->oa.o_cksum); - } else { - body->oa.o_valid = 0; - } - /* We're finishing using body->oa as an input variable */ - - /* Check if client was evicted while we were doing i/o before touching - network */ - if (rc == 0) { - /* Check if there is eviction in progress, and if so, wait for - * it to finish */ - if (unlikely(cfs_atomic_read(&exp->exp_obd-> - obd_evict_inprogress))) { - lwi = LWI_INTR(NULL, NULL); - rc = l_wait_event(exp->exp_obd-> - obd_evict_inprogress_waitq, - !cfs_atomic_read(&exp->exp_obd-> - obd_evict_inprogress), - &lwi); - } - /* Check if client was evicted or tried to reconnect already */ - if (exp->exp_failed || exp->exp_abort_active_req) - rc = -ENOTCONN; - else { - rc = sptlrpc_svc_wrap_bulk(req, desc); - if (rc == 0) - rc = ptlrpc_start_bulk_transfer(desc); - } - - if (rc == 0) { - time_t start = cfs_time_current_sec(); - do { - long timeoutl = req->rq_deadline - - cfs_time_current_sec(); - cfs_duration_t timeout = timeoutl <= 0 ? - CFS_TICK : cfs_time_seconds(timeoutl); - lwi = LWI_TIMEOUT_INTERVAL(timeout, - cfs_time_seconds(1), - ost_bulk_timeout, - desc); - rc = l_wait_event(desc->bd_waitq, - !ptlrpc_server_bulk_active(desc) || - exp->exp_failed || - exp->exp_abort_active_req, - &lwi); - LASSERT(rc == 0 || rc == -ETIMEDOUT); - /* Wait again if we changed deadline */ - } while ((rc == -ETIMEDOUT) && - (req->rq_deadline > cfs_time_current_sec())); - - if (rc == -ETIMEDOUT) { - DEBUG_REQ(D_ERROR, req, - "timeout on bulk PUT after %ld%+lds", - req->rq_deadline - start, - cfs_time_current_sec() - - req->rq_deadline); - ptlrpc_abort_bulk(desc); - } else if (exp->exp_failed) { - DEBUG_REQ(D_ERROR, req, "Eviction on bulk PUT"); - rc = -ENOTCONN; - ptlrpc_abort_bulk(desc); - } else if (exp->exp_abort_active_req) { - DEBUG_REQ(D_ERROR, req, "Reconnect on bulk PUT"); - /* we don't reply anyway */ - rc = -ETIMEDOUT; - ptlrpc_abort_bulk(desc); - } else if (!desc->bd_success || - desc->bd_nob_transferred != desc->bd_nob) { - DEBUG_REQ(D_ERROR, req, "%s bulk PUT %d(%d)", - desc->bd_success ? - "truncated" : "network error on", - desc->bd_nob_transferred, - desc->bd_nob); - /* XXX should this be a different errno? */ - rc = -ETIMEDOUT; - } - } else { - DEBUG_REQ(D_ERROR, req, "bulk PUT failed: rc %d", rc); - } - no_reply = rc != 0; - } - - /* Must commit after prep above in all cases */ - rc = obd_commitrw(OBD_BRW_READ, exp, &body->oa, 1, ioo, - remote_nb, npages, local_nb, oti, rc); - - if (rc == 0) { - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa)); - ost_drop_id(exp, &repbody->oa); - } - -out_lock: - ost_brw_lock_put(LCK_PR, ioo, remote_nb, &lockh); -out_tls: - ost_tls_put(req); -out_bulk: - if (desc) - ptlrpc_free_bulk(desc); -out: - LASSERT(rc <= 0); - if (rc == 0) { - req->rq_status = nob; - ptlrpc_lprocfs_brw(req, nob); - target_committed_to_req(req); - ptlrpc_reply(req); - } else if (!no_reply) { - /* Only reply if there was no comms problem with bulk */ - target_committed_to_req(req); - req->rq_status = rc; - ptlrpc_error(req); - } else { - /* reply out callback would free */ - ptlrpc_req_drop_rs(req); - CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - " - "client will retry\n", - exp->exp_obd->obd_name, - exp->exp_client_uuid.uuid, - exp->exp_connection->c_remote_uuid.uuid, - libcfs_id2str(req->rq_peer)); - } + if( rc != 0) + rc = 1; - RETURN(rc); + return rc; } -static int ost_brw_write(struct ptlrpc_request *req, struct obd_trans_info *oti) -{ - struct ptlrpc_bulk_desc *desc = NULL; - struct obd_export *exp = req->rq_export; - struct niobuf_remote *remote_nb; - struct niobuf_local *local_nb; - struct obd_ioobj *ioo; - struct ost_body *body, *repbody; - struct l_wait_info lwi; - struct lustre_handle lockh = {0}; - struct lustre_capa *capa = NULL; - __u32 *rcs; - int objcount, niocount, npages; - int rc, i, j; - obd_count client_cksum = 0, server_cksum = 0; - cksum_type_t cksum_type = OBD_CKSUM_CRC32; - int no_reply = 0; - __u32 o_uid = 0, o_gid = 0; - struct ost_thread_local_cache *tls; - ENTRY; - - req->rq_bulk_write = 1; - - if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK)) - GOTO(out, rc = -EIO); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK2)) - GOTO(out, rc = -EFAULT); - - /* pause before transaction has been started */ - OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4); - - /* Check if there is eviction in progress, and if so, wait for it to - * finish */ - if (unlikely(cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress))) { - lwi = LWI_INTR(NULL, NULL); // We do not care how long it takes - rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq, - !cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress), - &lwi); - } - if (exp->exp_failed) - GOTO(out, rc = -ENOTCONN); - - /* ost_body, ioobj & noibuf_remote are verified and swabbed in - * ost_rw_hpreq_check(). */ - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - GOTO(out, rc = -EFAULT); - - if ((body->oa.o_flags & OBD_BRW_MEMALLOC) && - (exp->exp_connection->c_peer.nid == exp->exp_connection->c_self)) - libcfs_memory_pressure_set(); - - objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ, - RCL_CLIENT) / sizeof(*ioo); - ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ); - if (ioo == NULL) - GOTO(out, rc = -EFAULT); - for (niocount = i = 0; i < objcount; i++) - niocount += ioo[i].ioo_bufcnt; - - /* - * It'd be nice to have a capsule function to indicate how many elements - * there were in a buffer for an RMF that's declared to be an array. - * It's easy enough to compute the number of elements here though. - */ - remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE); - if (remote_nb == NULL || niocount != (req_capsule_get_size(&req->rq_pill, - &RMF_NIOBUF_REMOTE, RCL_CLIENT) / sizeof(*remote_nb))) - GOTO(out, rc = -EFAULT); - - if (body->oa.o_valid & OBD_MD_FLOSSCAPA) { - capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1); - if (capa == NULL) { - CERROR("Missing capability for OST BRW WRITE"); - GOTO(out, rc = -EFAULT); - } - } - - req_capsule_set_size(&req->rq_pill, &RMF_RCS, RCL_SERVER, - niocount * sizeof(*rcs)); - rc = req_capsule_server_pack(&req->rq_pill); - if (rc != 0) - GOTO(out, rc); - OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_PACK, obd_fail_val); - rcs = req_capsule_server_get(&req->rq_pill, &RMF_RCS); - - tls = ost_tls_get(req); - if (tls == NULL) - GOTO(out_bulk, rc = -ENOMEM); - local_nb = tls->local; - - rc = ost_brw_lock_get(LCK_PW, exp, ioo, remote_nb, &lockh); - if (rc != 0) - GOTO(out_tls, rc); - - /* - * If getting the lock took more time than - * client was willing to wait, drop it. b=11330 - */ - if (cfs_time_current_sec() > req->rq_deadline || - OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) { - no_reply = 1; - CERROR("Dropping timed-out write from %s because locking " - "object "LPX64" took %ld seconds (limit was %ld).\n", - libcfs_id2str(req->rq_peer), ioo->ioo_id, - cfs_time_current_sec() - req->rq_arrival_time.tv_sec, - req->rq_deadline - req->rq_arrival_time.tv_sec); - GOTO(out_lock, rc = -ETIMEDOUT); - } - - if (!lustre_handle_is_used(&lockh)) - /* no needs to try to prolong lock if server is asked - * to handle locking (= OBD_BRW_SRVLOCK) */ - ost_rw_prolong_locks(req, ioo, remote_nb,&body->oa, LCK_PW); - - /* obd_preprw clobbers oa->valid, so save what we need */ - if (body->oa.o_valid & OBD_MD_FLCKSUM) { - client_cksum = body->oa.o_cksum; - if (body->oa.o_valid & OBD_MD_FLFLAGS) - cksum_type = cksum_type_unpack(body->oa.o_flags); - } - - /* Because we already sync grant info with client when reconnect, - * grant info will be cleared for resent req, then fed_grant and - * total_grant will not be modified in following preprw_write */ - if (lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT | MSG_REPLAY)) { - DEBUG_REQ(D_CACHE, req, "clear resent/replay req grant info"); - body->oa.o_valid &= ~OBD_MD_FLGRANT; - } - - if (exp_connect_rmtclient(exp)) { - o_uid = body->oa.o_uid; - o_gid = body->oa.o_gid; - } - npages = OST_THREAD_POOL_SIZE; - rc = obd_preprw(OBD_BRW_WRITE, exp, &body->oa, objcount, - ioo, remote_nb, &npages, local_nb, oti, capa); - if (rc != 0) - GOTO(out_lock, rc); - - desc = ptlrpc_prep_bulk_exp(req, npages, - BULK_GET_SINK, OST_BULK_PORTAL); - if (desc == NULL) - GOTO(out_lock, rc = -ENOMEM); +/* use obd ops to offer management infrastructure */ +static struct obd_ops ost_obd_ops = { + .o_owner = THIS_MODULE, + .o_setup = ost_setup, + .o_cleanup = ost_cleanup, + .o_health_check = ost_health_check, +}; - /* NB Having prepped, we must commit... */ - for (i = 0; i < npages; i++) - ptlrpc_prep_bulk_page(desc, local_nb[i].page, - local_nb[i].offset & ~CFS_PAGE_MASK, - local_nb[i].len); +static int __init ost_init(void) +{ + int rc; - rc = sptlrpc_svc_prep_bulk(req, desc); - if (rc != 0) - GOTO(out_lock, rc); + ENTRY; - /* Check if client was evicted or tried to reconnect while we - * were doing i/o before touching network */ - if (desc->bd_export->exp_failed || - desc->bd_export->exp_abort_active_req) - rc = -ENOTCONN; - else - rc = ptlrpc_start_bulk_transfer(desc); - if (rc == 0) { - time_t start = cfs_time_current_sec(); - do { - long timeoutl = req->rq_deadline - - cfs_time_current_sec(); - cfs_duration_t timeout = timeoutl <= 0 ? - CFS_TICK : cfs_time_seconds(timeoutl); - lwi = LWI_TIMEOUT_INTERVAL(timeout, cfs_time_seconds(1), - ost_bulk_timeout, desc); - rc = l_wait_event(desc->bd_waitq, - !ptlrpc_server_bulk_active(desc) || - desc->bd_export->exp_failed || - desc->bd_export->exp_abort_active_req, - &lwi); - LASSERT(rc == 0 || rc == -ETIMEDOUT); - /* Wait again if we changed deadline */ - } while ((rc == -ETIMEDOUT) && - (req->rq_deadline > cfs_time_current_sec())); - - if (rc == -ETIMEDOUT) { - DEBUG_REQ(D_ERROR, req, - "timeout on bulk GET after %ld%+lds", - req->rq_deadline - start, - cfs_time_current_sec() - - req->rq_deadline); - ptlrpc_abort_bulk(desc); - } else if (desc->bd_export->exp_failed) { - DEBUG_REQ(D_ERROR, req, "Eviction on bulk GET"); - rc = -ENOTCONN; - ptlrpc_abort_bulk(desc); - } else if (desc->bd_export->exp_abort_active_req) { - DEBUG_REQ(D_ERROR, req, "Reconnect on bulk GET"); - /* we don't reply anyway */ - rc = -ETIMEDOUT; - ptlrpc_abort_bulk(desc); - } else if (!desc->bd_success) { - DEBUG_REQ(D_ERROR, req, "network error on bulk GET"); - /* XXX should this be a different errno? */ - rc = -ETIMEDOUT; - } else { - rc = sptlrpc_svc_unwrap_bulk(req, desc); - } - } else { - DEBUG_REQ(D_ERROR, req, "ptlrpc_bulk_get failed: rc %d", rc); - } - no_reply = rc != 0; - - repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa)); - - if (unlikely(client_cksum != 0 && rc == 0)) { - static int cksum_counter; - repbody->oa.o_valid |= OBD_MD_FLCKSUM | OBD_MD_FLFLAGS; - repbody->oa.o_flags &= ~OBD_FL_CKSUM_ALL; - repbody->oa.o_flags |= cksum_type_pack(cksum_type); - server_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type); - repbody->oa.o_cksum = server_cksum; - cksum_counter++; - if (unlikely(client_cksum != server_cksum)) { - CERROR("client csum %x, server csum %x\n", - client_cksum, server_cksum); - cksum_counter = 0; - } else if ((cksum_counter & (-cksum_counter)) == cksum_counter){ - CDEBUG(D_INFO, "Checksum %u from %s OK: %x\n", - cksum_counter, libcfs_id2str(req->rq_peer), - server_cksum); - } - } - - /* Must commit after prep above in all cases */ - rc = obd_commitrw(OBD_BRW_WRITE, exp, &repbody->oa, objcount, ioo, - remote_nb, npages, local_nb, oti, rc); - if (rc == -ENOTCONN) - /* quota acquire process has been given up because - * either the client has been evicted or the client - * has timed out the request already */ - no_reply = 1; - - if (exp_connect_rmtclient(exp)) { - repbody->oa.o_uid = o_uid; - repbody->oa.o_gid = o_gid; - } - - /* - * Disable sending mtime back to the client. If the client locked the - * whole object, then it has already updated the mtime on its side, - * otherwise it will have to glimpse anyway (see bug 21489, comment 32) - */ - repbody->oa.o_valid &= ~(OBD_MD_FLMTIME | OBD_MD_FLATIME); - - if (unlikely(client_cksum != server_cksum && rc == 0)) { - int new_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type); - char *msg; - char *via; - char *router; - - if (new_cksum == server_cksum) - msg = "changed in transit before arrival at OST"; - else if (new_cksum == client_cksum) - msg = "initial checksum before message complete"; - else - msg = "changed in transit AND after initial checksum"; - - if (req->rq_peer.nid == desc->bd_sender) { - via = router = ""; - } else { - via = " via "; - router = libcfs_nid2str(desc->bd_sender); - } - - LCONSOLE_ERROR_MSG(0x168, "%s: BAD WRITE CHECKSUM: %s from " - "%s%s%s inum "LPU64"/"LPU64" object " - LPU64"/"LPU64" extent ["LPU64"-"LPU64"]\n", - exp->exp_obd->obd_name, msg, - libcfs_id2str(req->rq_peer), - via, router, - body->oa.o_valid & OBD_MD_FLFID ? - body->oa.o_fid : (__u64)0, - body->oa.o_valid & OBD_MD_FLFID ? - body->oa.o_generation :(__u64)0, - body->oa.o_id, - body->oa.o_valid & OBD_MD_FLGROUP ? - body->oa.o_gr : (__u64)0, - local_nb[0].offset, - local_nb[npages-1].offset + - local_nb[npages-1].len - 1 ); - CERROR("client csum %x, original server csum %x, " - "server csum now %x\n", - client_cksum, server_cksum, new_cksum); - } - - if (rc == 0) { - int nob = 0; - - /* set per-requested niobuf return codes */ - for (i = j = 0; i < niocount; i++) { - int len = remote_nb[i].len; - - nob += len; - rcs[i] = 0; - do { - LASSERT(j < npages); - if (local_nb[j].rc < 0) - rcs[i] = local_nb[j].rc; - len -= local_nb[j].len; - j++; - } while (len > 0); - LASSERT(len == 0); - } - LASSERT(j == npages); - ptlrpc_lprocfs_brw(req, nob); - } - -out_lock: - ost_brw_lock_put(LCK_PW, ioo, remote_nb, &lockh); -out_tls: - ost_tls_put(req); -out_bulk: - if (desc) - ptlrpc_free_bulk(desc); -out: - /* XXX: don't send reply if obd rdonly mode, this can cause data loss - * on client, see bug 22190. Remove this when async bulk will be done. - * Meanwhile, if this is umount then don't reply anything. */ - if (req->rq_export->exp_obd->obd_no_transno) { - no_reply = req->rq_export->exp_obd->obd_stopping; - rc = -EIO; - } - - if (rc == 0) { - oti_to_request(oti, req); - target_committed_to_req(req); - rc = ptlrpc_reply(req); - } else if (!no_reply) { - /* Only reply if there was no comms problem with bulk */ - target_committed_to_req(req); - req->rq_status = rc; - ptlrpc_error(req); - } else { - /* reply out callback would free */ - ptlrpc_req_drop_rs(req); - CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - " - "client will retry\n", - exp->exp_obd->obd_name, - exp->exp_client_uuid.uuid, - exp->exp_connection->c_remote_uuid.uuid, - libcfs_id2str(req->rq_peer)); - } - libcfs_memory_pressure_clr(); - RETURN(rc); -} - -/** - * Implementation of OST_SET_INFO. - * - * OST_SET_INFO is like ioctl(): heavily overloaded. Specifically, it takes a - * "key" and a value RPC buffers as arguments, with the value's contents - * interpreted according to the key. - * - * Value types that need swabbing have swabbing done explicitly, either here or - * in functions called from here. This should be corrected: all swabbing should - * be done in the capsule abstraction, as that will then allow us to move - * swabbing exclusively to the client without having to modify server code - * outside the capsule abstraction's implementation itself. To correct this - * will require minor changes to the capsule abstraction; see the comments for - * req_capsule_extend() in layout.c. - */ -static int ost_set_info(struct obd_export *exp, struct ptlrpc_request *req) -{ - struct ost_body *body = NULL, *repbody; - char *key, *val = NULL; - int keylen, vallen, rc = 0; - int is_grant_shrink = 0; - ENTRY; - - key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY); - if (key == NULL) { - DEBUG_REQ(D_HA, req, "no set_info key"); - RETURN(-EFAULT); - } - keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY, - RCL_CLIENT); - - vallen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_VAL, - RCL_CLIENT); - - if ((is_grant_shrink = KEY_IS(KEY_GRANT_SHRINK))) - /* In this case the value is actually an RMF_OST_BODY, so we - * transmutate the type of this PTLRPC */ - req_capsule_extend(&req->rq_pill, &RQF_OST_SET_GRANT_INFO); - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - - if (vallen) { - if (is_grant_shrink) { - body = req_capsule_client_get(&req->rq_pill, - &RMF_OST_BODY); - if (!body) - RETURN(-EFAULT); - - repbody = req_capsule_server_get(&req->rq_pill, - &RMF_OST_BODY); - memcpy(repbody, body, sizeof(*body)); - val = (char*)repbody; - } else { - val = req_capsule_client_get(&req->rq_pill, - &RMF_SETINFO_VAL); - } - } - - if (KEY_IS(KEY_EVICT_BY_NID)) { - if (val && vallen) - obd_export_evict_by_nid(exp->exp_obd, val); - GOTO(out, rc = 0); - } else if (KEY_IS(KEY_MDS_CONN) && ptlrpc_req_need_swab(req)) { - if (vallen < sizeof(__u32)) - RETURN(-EFAULT); - __swab32s((__u32 *)val); - } - - /* OBD will also check if KEY_IS(KEY_GRANT_SHRINK), and will cast val to - * a struct ost_body * value */ - rc = obd_set_info_async(exp, keylen, key, vallen, val, NULL); -out: - lustre_msg_set_status(req->rq_repmsg, 0); - RETURN(rc); -} - -static int ost_get_info(struct obd_export *exp, struct ptlrpc_request *req) -{ - void *key, *reply; - int keylen, replylen, rc = 0; - struct req_capsule *pill = &req->rq_pill; - ENTRY; - - /* this common part for get_info rpc */ - key = req_capsule_client_get(pill, &RMF_SETINFO_KEY); - if (key == NULL) { - DEBUG_REQ(D_HA, req, "no get_info key"); - RETURN(-EFAULT); - } - keylen = req_capsule_get_size(pill, &RMF_SETINFO_KEY, RCL_CLIENT); - - rc = obd_get_info(exp, keylen, key, &replylen, NULL, NULL); - if (rc) - RETURN(rc); - - req_capsule_set_size(pill, &RMF_GENERIC_DATA, - RCL_SERVER, replylen); - - rc = req_capsule_server_pack(pill); - if (rc) - RETURN(rc); - - reply = req_capsule_server_get(pill, &RMF_GENERIC_DATA); - if (reply == NULL) - RETURN(-ENOMEM); - - /* call again to fill in the reply buffer */ - rc = obd_get_info(exp, keylen, key, &replylen, reply, NULL); - - lustre_msg_set_status(req->rq_repmsg, 0); - RETURN(rc); -} - -#ifdef HAVE_QUOTA_SUPPORT -static int ost_handle_quotactl(struct ptlrpc_request *req) -{ - struct obd_quotactl *oqctl, *repoqc; - int rc; - ENTRY; - - oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL); - if (oqctl == NULL) - GOTO(out, rc = -EPROTO); - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - GOTO(out, rc); - - repoqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL); - req->rq_status = obd_quotactl(req->rq_export, oqctl); - *repoqc = *oqctl; - -out: - RETURN(rc); -} - -static int ost_handle_quotacheck(struct ptlrpc_request *req) -{ - struct obd_quotactl *oqctl; - int rc; - ENTRY; - - oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL); - if (oqctl == NULL) - RETURN(-EPROTO); - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(-ENOMEM); - - req->rq_status = obd_quotacheck(req->rq_export, oqctl); - RETURN(0); -} - -static int ost_handle_quota_adjust_qunit(struct ptlrpc_request *req) -{ - struct quota_adjust_qunit *oqaq, *repoqa; - struct lustre_quota_ctxt *qctxt; - int rc; - ENTRY; - - qctxt = &req->rq_export->exp_obd->u.obt.obt_qctxt; - oqaq = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT); - if (oqaq == NULL) - GOTO(out, rc = -EPROTO); - - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - GOTO(out, rc); - - repoqa = req_capsule_server_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT); - req->rq_status = obd_quota_adjust_qunit(req->rq_export, oqaq, qctxt); - *repoqa = *oqaq; - - out: - RETURN(rc); -} -#endif - -static int ost_llog_handle_connect(struct obd_export *exp, - struct ptlrpc_request *req) -{ - struct llogd_conn_body *body; - int rc; - ENTRY; - - body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_CONN_BODY); - rc = obd_llog_connect(exp, body); - RETURN(rc); -} - -#define ost_init_sec_none(reply, exp) \ -do { \ - reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT | \ - OBD_CONNECT_RMT_CLIENT_FORCE | \ - OBD_CONNECT_OSS_CAPA); \ - cfs_spin_lock(&exp->exp_lock); \ - exp->exp_connect_flags = reply->ocd_connect_flags; \ - cfs_spin_unlock(&exp->exp_lock); \ -} while (0) - -static int ost_init_sec_level(struct ptlrpc_request *req) -{ - struct obd_export *exp = req->rq_export; - struct req_capsule *pill = &req->rq_pill; - struct obd_device *obd = exp->exp_obd; - struct filter_obd *filter = &obd->u.filter; - char *client = libcfs_nid2str(req->rq_peer.nid); - struct obd_connect_data *data, *reply; - int rc = 0, remote; - ENTRY; - - data = req_capsule_client_get(pill, &RMF_CONNECT_DATA); - reply = req_capsule_server_get(pill, &RMF_CONNECT_DATA); - if (data == NULL || reply == NULL) - RETURN(-EFAULT); - - /* connection from MDT is always trusted */ - if (req->rq_auth_usr_mdt) { - ost_init_sec_none(reply, exp); - RETURN(0); - } - - /* no GSS support case */ - if (!req->rq_auth_gss) { - if (filter->fo_sec_level > LUSTRE_SEC_NONE) { - CWARN("client %s -> target %s does not user GSS, " - "can not run under security level %d.\n", - client, obd->obd_name, filter->fo_sec_level); - RETURN(-EACCES); - } else { - ost_init_sec_none(reply, exp); - RETURN(0); - } - } - - /* old version case */ - if (unlikely(!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) || - !(data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA))) { - if (filter->fo_sec_level > LUSTRE_SEC_NONE) { - CWARN("client %s -> target %s uses old version, " - "can not run under security level %d.\n", - client, obd->obd_name, filter->fo_sec_level); - RETURN(-EACCES); - } else { - CWARN("client %s -> target %s uses old version, " - "run under security level %d.\n", - client, obd->obd_name, filter->fo_sec_level); - ost_init_sec_none(reply, exp); - RETURN(0); - } - } - - remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT_FORCE; - if (remote) { - if (!req->rq_auth_remote) - CDEBUG(D_SEC, "client (local realm) %s -> target %s " - "asked to be remote.\n", client, obd->obd_name); - } else if (req->rq_auth_remote) { - remote = 1; - CDEBUG(D_SEC, "client (remote realm) %s -> target %s is set " - "as remote by default.\n", client, obd->obd_name); - } - - if (remote) { - if (!filter->fo_fl_oss_capa) { - CDEBUG(D_SEC, "client %s -> target %s is set as remote," - " but OSS capabilities are not enabled: %d.\n", - client, obd->obd_name, filter->fo_fl_oss_capa); - RETURN(-EACCES); - } - } - - switch (filter->fo_sec_level) { - case LUSTRE_SEC_NONE: - if (!remote) { - ost_init_sec_none(reply, exp); - break; - } else { - CDEBUG(D_SEC, "client %s -> target %s is set as remote, " - "can not run under security level %d.\n", - client, obd->obd_name, filter->fo_sec_level); - RETURN(-EACCES); - } - case LUSTRE_SEC_REMOTE: - if (!remote) - ost_init_sec_none(reply, exp); - break; - case LUSTRE_SEC_ALL: - if (!remote) { - reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT | - OBD_CONNECT_RMT_CLIENT_FORCE); - if (!filter->fo_fl_oss_capa) - reply->ocd_connect_flags &= ~OBD_CONNECT_OSS_CAPA; - - cfs_spin_lock(&exp->exp_lock); - exp->exp_connect_flags = reply->ocd_connect_flags; - cfs_spin_unlock(&exp->exp_lock); - } - break; - default: - RETURN(-EINVAL); - } - - RETURN(rc); -} - -/* - * FIXME - * this should be done in filter_connect()/filter_reconnect(), but - * we can't obtain information like NID, which stored in incoming - * request, thus can't decide what flavor to use. so we do it here. - * - * This hack should be removed after the OST stack be rewritten, just - * like what we are doing in mdt_obd_connect()/mdt_obd_reconnect(). - */ -static int ost_connect_check_sptlrpc(struct ptlrpc_request *req) -{ - struct obd_export *exp = req->rq_export; - struct filter_obd *filter = &exp->exp_obd->u.filter; - struct sptlrpc_flavor flvr; - int rc = 0; - - if (unlikely(strcmp(exp->exp_obd->obd_type->typ_name, - LUSTRE_ECHO_NAME) == 0)) { - exp->exp_flvr.sf_rpc = SPTLRPC_FLVR_ANY; - return 0; - } - - if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) { - cfs_read_lock(&filter->fo_sptlrpc_lock); - sptlrpc_target_choose_flavor(&filter->fo_sptlrpc_rset, - req->rq_sp_from, - req->rq_peer.nid, - &flvr); - cfs_read_unlock(&filter->fo_sptlrpc_lock); - - cfs_spin_lock(&exp->exp_lock); - - exp->exp_sp_peer = req->rq_sp_from; - exp->exp_flvr = flvr; - - if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY && - exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) { - CERROR("unauthorized rpc flavor %x from %s, " - "expect %x\n", req->rq_flvr.sf_rpc, - libcfs_nid2str(req->rq_peer.nid), - exp->exp_flvr.sf_rpc); - rc = -EACCES; - } - - cfs_spin_unlock(&exp->exp_lock); - } else { - if (exp->exp_sp_peer != req->rq_sp_from) { - CERROR("RPC source %s doesn't match %s\n", - sptlrpc_part2name(req->rq_sp_from), - sptlrpc_part2name(exp->exp_sp_peer)); - rc = -EACCES; - } else { - rc = sptlrpc_target_export_check(exp, req); - } - } - - return rc; -} - -static int ost_filter_recovery_request(struct ptlrpc_request *req, - struct obd_device *obd, int *process) -{ - switch (lustre_msg_get_opc(req->rq_reqmsg)) { - case OST_CONNECT: /* This will never get here, but for completeness. */ - case OST_DISCONNECT: - *process = 1; - RETURN(0); - - case OBD_PING: - case OST_CREATE: - case OST_DESTROY: - case OST_PUNCH: - case OST_SETATTR: - case OST_SYNC: - case OST_WRITE: - case OBD_LOG_CANCEL: - case LDLM_ENQUEUE: - *process = target_queue_recovery_request(req, obd); - RETURN(0); - - default: - DEBUG_REQ(D_ERROR, req, "not permitted during recovery"); - *process = -EAGAIN; - RETURN(0); - } -} - -int ost_msg_check_version(struct lustre_msg *msg) -{ - int rc; - - switch(lustre_msg_get_opc(msg)) { - case OST_CONNECT: - case OST_DISCONNECT: - case OBD_PING: - case SEC_CTX_INIT: - case SEC_CTX_INIT_CONT: - case SEC_CTX_FINI: - rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION); - if (rc) - CERROR("bad opc %u version %08x, expecting %08x\n", - lustre_msg_get_opc(msg), - lustre_msg_get_version(msg), - LUSTRE_OBD_VERSION); - break; - case OST_CREATE: - case OST_DESTROY: - case OST_GETATTR: - case OST_SETATTR: - case OST_WRITE: - case OST_READ: - case OST_PUNCH: - case OST_STATFS: - case OST_SYNC: - case OST_SET_INFO: - case OST_GET_INFO: -#ifdef HAVE_QUOTA_SUPPORT - case OST_QUOTACHECK: - case OST_QUOTACTL: - case OST_QUOTA_ADJUST_QUNIT: -#endif - rc = lustre_msg_check_version(msg, LUSTRE_OST_VERSION); - if (rc) - CERROR("bad opc %u version %08x, expecting %08x\n", - lustre_msg_get_opc(msg), - lustre_msg_get_version(msg), - LUSTRE_OST_VERSION); - break; - case LDLM_ENQUEUE: - case LDLM_CONVERT: - case LDLM_CANCEL: - case LDLM_BL_CALLBACK: - case LDLM_CP_CALLBACK: - rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION); - if (rc) - CERROR("bad opc %u version %08x, expecting %08x\n", - lustre_msg_get_opc(msg), - lustre_msg_get_version(msg), - LUSTRE_DLM_VERSION); - break; - case LLOG_ORIGIN_CONNECT: - case OBD_LOG_CANCEL: - rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION); - if (rc) - CERROR("bad opc %u version %08x, expecting %08x\n", - lustre_msg_get_opc(msg), - lustre_msg_get_version(msg), - LUSTRE_LOG_VERSION); - break; - default: - CERROR("Unexpected opcode %d\n", lustre_msg_get_opc(msg)); - rc = -ENOTSUPP; - } - return rc; -} - -/** - * Returns 1 if the given PTLRPC matches the given LDLM locks, or 0 if it does - * not. - */ -static int ost_rw_hpreq_lock_match(struct ptlrpc_request *req, - struct ldlm_lock *lock) -{ - struct niobuf_remote *nb; - struct obd_ioobj *ioo; - struct ost_body *body; - int objcount, niocount; - int mode, opc, i; - __u64 start, end; - ENTRY; - - opc = lustre_msg_get_opc(req->rq_reqmsg); - LASSERT(opc == OST_READ || opc == OST_WRITE); - - /* As the request may be covered by several locks, do not look at - * o_handle, look at the RPC IO region. */ - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(0); - - objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ, - RCL_CLIENT) / sizeof(*ioo); - ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ); - if (ioo == NULL) - RETURN(0); - - for (niocount = i = 0; i < objcount; i++) - niocount += ioo[i].ioo_bufcnt; - - nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE); - if (nb == NULL || - niocount != (req_capsule_get_size(&req->rq_pill, &RMF_NIOBUF_REMOTE, - RCL_CLIENT) / sizeof(*nb))) - RETURN(0); - - mode = LCK_PW; - if (opc == OST_READ) - mode |= LCK_PR; - - start = nb[0].offset & CFS_PAGE_MASK; - end = (nb[ioo->ioo_bufcnt - 1].offset + - nb[ioo->ioo_bufcnt - 1].len - 1) | ~CFS_PAGE_MASK; - - LASSERT(lock->l_resource != NULL); - if (!osc_res_name_eq(ioo->ioo_id, ioo->ioo_gr, - &lock->l_resource->lr_name)) - RETURN(0); - - if (!(lock->l_granted_mode & mode)) - RETURN(0); - - if (lock->l_policy_data.l_extent.end < start || - lock->l_policy_data.l_extent.start > end) - RETURN(0); - - RETURN(1); -} - -/** - * High-priority queue request check for whether the given PTLRPC request (\a - * req) is blocking an LDLM lock cancel. - * - * Returns 1 if the given given PTLRPC request (\a req) is blocking an LDLM lock - * cancel, 0 if it is not, and -EFAULT if the request is malformed. - * - * Only OST_READs, OST_WRITEs and OST_PUNCHes go on the h-p RPC queue. This - * function looks only at OST_READs and OST_WRITEs. - */ -static int ost_rw_hpreq_check(struct ptlrpc_request *req) -{ - struct niobuf_remote *nb; - struct obd_ioobj *ioo; - struct ost_body *body; - int objcount, niocount; - int mode, opc, i; - ENTRY; - - opc = lustre_msg_get_opc(req->rq_reqmsg); - LASSERT(opc == OST_READ || opc == OST_WRITE); - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); - - objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ, - RCL_CLIENT) / sizeof(*ioo); - ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ); - if (ioo == NULL) - RETURN(-EFAULT); - - for (niocount = i = 0; i < objcount; i++) - niocount += ioo[i].ioo_bufcnt; - nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE); - if (nb == NULL || - niocount != (req_capsule_get_size(&req->rq_pill, &RMF_NIOBUF_REMOTE, - RCL_CLIENT) / sizeof(*nb))) - RETURN(-EFAULT); - if (niocount != 0 && (nb[0].flags & OBD_BRW_SRVLOCK)) - RETURN(-EFAULT); - - mode = LCK_PW; - if (opc == OST_READ) - mode |= LCK_PR; - RETURN(ost_rw_prolong_locks(req, ioo, nb, &body->oa, mode)); -} - -static int ost_punch_prolong_locks(struct ptlrpc_request *req, struct obdo *oa) -{ - struct ldlm_res_id res_id = { .name = { oa->o_id } }; - struct ost_prolong_data opd = { 0 }; - __u64 start, end; - ENTRY; - - start = oa->o_size; - end = start + oa->o_blocks; - - opd.opd_mode = LCK_PW; - opd.opd_exp = req->rq_export; - opd.opd_policy.l_extent.start = start & CFS_PAGE_MASK; - if (oa->o_blocks == OBD_OBJECT_EOF || end < start) - opd.opd_policy.l_extent.end = OBD_OBJECT_EOF; - else - opd.opd_policy.l_extent.end = end | ~CFS_PAGE_MASK; - - /* prolong locks for the current service time of the corresponding - * portal (= OST_IO_PORTAL) */ - opd.opd_timeout = AT_OFF ? obd_timeout / 2: - max(at_est2timeout(at_get(&req->rq_rqbd-> - rqbd_service->srv_at_estimate)), ldlm_timeout); - - CDEBUG(D_DLMTRACE,"refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n", - res_id.name[0], res_id.name[1], opd.opd_policy.l_extent.start, - opd.opd_policy.l_extent.end); - - opd.opd_oa = oa; - ldlm_resource_iterate(req->rq_export->exp_obd->obd_namespace, &res_id, - ost_prolong_locks_iter, &opd); - RETURN(opd.opd_lock_match); -} - -/** - * Like ost_rw_hpreq_lock_match(), but for OST_PUNCH RPCs. - */ -static int ost_punch_hpreq_lock_match(struct ptlrpc_request *req, - struct ldlm_lock *lock) -{ - struct ost_body *body; - ENTRY; - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(0); /* can't return -EFAULT here */ - - if (body->oa.o_valid & OBD_MD_FLHANDLE && - body->oa.o_handle.cookie == lock->l_handle.h_cookie) - RETURN(1); - RETURN(0); -} - -/** - * Like ost_rw_hpreq_check(), but for OST_PUNCH RPCs. - */ -static int ost_punch_hpreq_check(struct ptlrpc_request *req) -{ - struct ost_body *body; - - body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) - RETURN(-EFAULT); - - LASSERT(!(body->oa.o_valid & OBD_MD_FLFLAGS) || - !(body->oa.o_flags & OBD_FL_SRVLOCK)); - - RETURN(ost_punch_prolong_locks(req, &body->oa)); -} - -struct ptlrpc_hpreq_ops ost_hpreq_rw = { - .hpreq_lock_match = ost_rw_hpreq_lock_match, - .hpreq_check = ost_rw_hpreq_check, -}; - -struct ptlrpc_hpreq_ops ost_hpreq_punch = { - .hpreq_lock_match = ost_punch_hpreq_lock_match, - .hpreq_check = ost_punch_hpreq_check, -}; - -/** Assign high priority operations to the request if needed. */ -static int ost_hpreq_handler(struct ptlrpc_request *req) -{ - ENTRY; - if (req->rq_export) { - int opc = lustre_msg_get_opc(req->rq_reqmsg); - struct ost_body *body; - - if (opc == OST_READ || opc == OST_WRITE) { - struct niobuf_remote *nb; - struct obd_ioobj *ioo; - int objcount, niocount; - int i; - - /* RPCs on the H-P queue can be inspected before - * ost_handler() initializes their pills, so we - * initialize that here. Capsule initialization is - * idempotent, as is setting the pill's format (provided - * it doesn't change). - */ - req_capsule_init(&req->rq_pill, req, RCL_SERVER); - if (opc == OST_READ) - req_capsule_set(&req->rq_pill, - &RQF_OST_BRW_READ); - else - req_capsule_set(&req->rq_pill, - &RQF_OST_BRW_WRITE); - - body = req_capsule_client_get(&req->rq_pill, - &RMF_OST_BODY); - if (body == NULL) { - CERROR("Missing/short ost_body\n"); - RETURN(-EFAULT); - } - objcount = req_capsule_get_size(&req->rq_pill, - &RMF_OBD_IOOBJ, - RCL_CLIENT) / - sizeof(*ioo); - if (objcount == 0) { - CERROR("Missing/short ioobj\n"); - RETURN(-EFAULT); - } - if (objcount > 1) { - CERROR("too many ioobjs (%d)\n", objcount); - RETURN(-EFAULT); - } - - ioo = req_capsule_client_get(&req->rq_pill, - &RMF_OBD_IOOBJ); - if (ioo == NULL) { - CERROR("Missing/short ioobj\n"); - RETURN(-EFAULT); - } - - for (niocount = i = 0; i < objcount; i++) { - if (ioo[i].ioo_bufcnt == 0) { - CERROR("ioo[%d] has zero bufcnt\n", i); - RETURN(-EFAULT); - } - niocount += ioo[i].ioo_bufcnt; - } - if (niocount > PTLRPC_MAX_BRW_PAGES) { - DEBUG_REQ(D_RPCTRACE, req, - "bulk has too many pages (%d)", - niocount); - RETURN(-EFAULT); - } - - nb = req_capsule_client_get(&req->rq_pill, - &RMF_NIOBUF_REMOTE); - if (nb == NULL) { - CERROR("Missing/short niobuf\n"); - RETURN(-EFAULT); - } - - if (niocount == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK)) - req->rq_ops = &ost_hpreq_rw; - } else if (opc == OST_PUNCH) { - req_capsule_init(&req->rq_pill, req, RCL_SERVER); - req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH); - - body = req_capsule_client_get(&req->rq_pill, - &RMF_OST_BODY); - if (body == NULL) { - CERROR("Missing/short ost_body\n"); - RETURN(-EFAULT); - } - - if (!(body->oa.o_valid & OBD_MD_FLFLAGS) || - !(body->oa.o_flags & OBD_FL_SRVLOCK)) - req->rq_ops = &ost_hpreq_punch; - } - } - RETURN(0); -} - -/* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */ -int ost_handle(struct ptlrpc_request *req) -{ - struct obd_trans_info trans_info = { 0, }; - struct obd_trans_info *oti = &trans_info; - int should_process, fail = OBD_FAIL_OST_ALL_REPLY_NET, rc = 0; - struct obd_device *obd = NULL; - ENTRY; - - LASSERT(current->journal_info == NULL); - - /* primordial rpcs don't affect server recovery */ - switch (lustre_msg_get_opc(req->rq_reqmsg)) { - case SEC_CTX_INIT: - case SEC_CTX_INIT_CONT: - case SEC_CTX_FINI: - GOTO(out, rc = 0); - } - - req_capsule_init(&req->rq_pill, req, RCL_SERVER); - - if (lustre_msg_get_opc(req->rq_reqmsg) != OST_CONNECT) { - if (!class_connected_export(req->rq_export)) { - CDEBUG(D_HA,"operation %d on unconnected OST from %s\n", - lustre_msg_get_opc(req->rq_reqmsg), - libcfs_id2str(req->rq_peer)); - req->rq_status = -ENOTCONN; - GOTO(out, rc = -ENOTCONN); - } - - obd = req->rq_export->exp_obd; - - /* Check for aborted recovery. */ - if (obd->obd_recovering) { - rc = ost_filter_recovery_request(req, obd, - &should_process); - if (rc || !should_process) - RETURN(rc); - else if (should_process < 0) { - req->rq_status = should_process; - rc = ptlrpc_error(req); - RETURN(rc); - } - } - } - - oti_init(oti, req); - - rc = ost_msg_check_version(req->rq_reqmsg); - if (rc) - RETURN(rc); - - switch (lustre_msg_get_opc(req->rq_reqmsg)) { - case OST_CONNECT: { - CDEBUG(D_INODE, "connect\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_CONNECT); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET)) - RETURN(0); - rc = target_handle_connect(req); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET2)) - RETURN(0); - if (!rc) { - rc = ost_init_sec_level(req); - if (!rc) - rc = ost_connect_check_sptlrpc(req); - } - break; - } - case OST_DISCONNECT: - CDEBUG(D_INODE, "disconnect\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_DISCONNECT); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_DISCONNECT_NET)) - RETURN(0); - rc = target_handle_disconnect(req); - break; - case OST_CREATE: - CDEBUG(D_INODE, "create\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_CREATE); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_CREATE_NET)) - RETURN(0); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS)) - GOTO(out, rc = -EROFS); - rc = ost_create(req->rq_export, req, oti); - break; - case OST_DESTROY: - CDEBUG(D_INODE, "destroy\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_DESTROY); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_DESTROY_NET)) - RETURN(0); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS)) - GOTO(out, rc = -EROFS); - rc = ost_destroy(req->rq_export, req, oti); - break; - case OST_GETATTR: - CDEBUG(D_INODE, "getattr\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_GETATTR); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_GETATTR_NET)) - RETURN(0); - rc = ost_getattr(req->rq_export, req); - break; - case OST_SETATTR: - CDEBUG(D_INODE, "setattr\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_SETATTR); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_SETATTR_NET)) - RETURN(0); - rc = ost_setattr(req->rq_export, req, oti); - break; - case OST_WRITE: - req_capsule_set(&req->rq_pill, &RQF_OST_BRW_WRITE); - CDEBUG(D_INODE, "write\n"); - /* req->rq_request_portal would be nice, if it was set */ - if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){ - CERROR("%s: deny write request from %s to portal %u\n", - req->rq_export->exp_obd->obd_name, - obd_export_nid2str(req->rq_export), - req->rq_rqbd->rqbd_service->srv_req_portal); - GOTO(out, rc = -EPROTO); - } - if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET)) - RETURN(0); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOSPC)) - GOTO(out, rc = -ENOSPC); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS)) - GOTO(out, rc = -EROFS); - rc = ost_brw_write(req, oti); - LASSERT(current->journal_info == NULL); - /* ost_brw_write sends its own replies */ - RETURN(rc); - case OST_READ: - req_capsule_set(&req->rq_pill, &RQF_OST_BRW_READ); - CDEBUG(D_INODE, "read\n"); - /* req->rq_request_portal would be nice, if it was set */ - if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){ - CERROR("%s: deny read request from %s to portal %u\n", - req->rq_export->exp_obd->obd_name, - obd_export_nid2str(req->rq_export), - req->rq_rqbd->rqbd_service->srv_req_portal); - GOTO(out, rc = -EPROTO); - } - if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET)) - RETURN(0); - rc = ost_brw_read(req, oti); - LASSERT(current->journal_info == NULL); - /* ost_brw_read sends its own replies */ - RETURN(rc); - case OST_PUNCH: - CDEBUG(D_INODE, "punch\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_PUNCH_NET)) - RETURN(0); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS)) - GOTO(out, rc = -EROFS); - rc = ost_punch(req->rq_export, req, oti); - break; - case OST_STATFS: - CDEBUG(D_INODE, "statfs\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_STATFS); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_STATFS_NET)) - RETURN(0); - rc = ost_statfs(req); - break; - case OST_SYNC: - CDEBUG(D_INODE, "sync\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_SYNC); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_SYNC_NET)) - RETURN(0); - rc = ost_sync(req->rq_export, req); - break; - case OST_SET_INFO: - DEBUG_REQ(D_INODE, req, "set_info"); - req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO); - rc = ost_set_info(req->rq_export, req); - break; - case OST_GET_INFO: - DEBUG_REQ(D_INODE, req, "get_info"); - req_capsule_set(&req->rq_pill, &RQF_OST_GET_INFO_GENERIC); - rc = ost_get_info(req->rq_export, req); - break; -#ifdef HAVE_QUOTA_SUPPORT - case OST_QUOTACHECK: - CDEBUG(D_INODE, "quotacheck\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACHECK); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACHECK_NET)) - RETURN(0); - rc = ost_handle_quotacheck(req); - break; - case OST_QUOTACTL: - CDEBUG(D_INODE, "quotactl\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACTL); - if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACTL_NET)) - RETURN(0); - rc = ost_handle_quotactl(req); - break; - case OST_QUOTA_ADJUST_QUNIT: - CDEBUG(D_INODE, "quota_adjust_qunit\n"); - req_capsule_set(&req->rq_pill, &RQF_OST_QUOTA_ADJUST_QUNIT); - rc = ost_handle_quota_adjust_qunit(req); - break; + rc = class_register_type(&ost_obd_ops, NULL, NULL, +#ifndef HAVE_ONLY_PROCFS_SEQ + NULL, #endif - case OBD_PING: - DEBUG_REQ(D_INODE, req, "ping"); - req_capsule_set(&req->rq_pill, &RQF_OBD_PING); - rc = target_handle_ping(req); - break; - /* FIXME - just reply status */ - case LLOG_ORIGIN_CONNECT: - DEBUG_REQ(D_INODE, req, "log connect"); - req_capsule_set(&req->rq_pill, &RQF_LLOG_ORIGIN_CONNECT); - rc = ost_llog_handle_connect(req->rq_export, req); - req->rq_status = rc; - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - RETURN(ptlrpc_reply(req)); - case OBD_LOG_CANCEL: - CDEBUG(D_INODE, "log cancel\n"); - req_capsule_set(&req->rq_pill, &RQF_LOG_CANCEL); - if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_NET)) - RETURN(0); - rc = llog_origin_handle_cancel(req); - if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_REP)) - RETURN(0); - req->rq_status = rc; - rc = req_capsule_server_pack(&req->rq_pill); - if (rc) - RETURN(rc); - RETURN(ptlrpc_reply(req)); - case LDLM_ENQUEUE: - CDEBUG(D_INODE, "enqueue\n"); - req_capsule_set(&req->rq_pill, &RQF_LDLM_ENQUEUE); - if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_ENQUEUE)) - RETURN(0); - rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast, - ldlm_server_blocking_ast, - ldlm_server_glimpse_ast); - fail = OBD_FAIL_OST_LDLM_REPLY_NET; - break; - case LDLM_CONVERT: - CDEBUG(D_INODE, "convert\n"); - req_capsule_set(&req->rq_pill, &RQF_LDLM_CONVERT); - if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CONVERT)) - RETURN(0); - rc = ldlm_handle_convert(req); - break; - case LDLM_CANCEL: - CDEBUG(D_INODE, "cancel\n"); - req_capsule_set(&req->rq_pill, &RQF_LDLM_CANCEL); - if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL)) - RETURN(0); - rc = ldlm_handle_cancel(req); - break; - case LDLM_BL_CALLBACK: - case LDLM_CP_CALLBACK: - CDEBUG(D_INODE, "callback\n"); - CERROR("callbacks should not happen on OST\n"); - /* fall through */ - default: - CERROR("Unexpected opcode %d\n", - lustre_msg_get_opc(req->rq_reqmsg)); - req->rq_status = -ENOTSUPP; - rc = ptlrpc_error(req); - RETURN(rc); - } - - LASSERT(current->journal_info == NULL); - - EXIT; - /* If we're DISCONNECTing, the export_data is already freed */ - if (!rc && lustre_msg_get_opc(req->rq_reqmsg) != OST_DISCONNECT) - target_committed_to_req(req); - -out: - if (!rc) - oti_to_request(oti, req); - - target_send_reply(req, rc, fail); - return 0; -} -EXPORT_SYMBOL(ost_handle); -/* - * free per-thread pool created by ost_thread_init(). - */ -static void ost_thread_done(struct ptlrpc_thread *thread) -{ - struct ost_thread_local_cache *tls; /* TLS stands for Thread-Local - * Storage */ - - ENTRY; - - LASSERT(thread != NULL); - - /* - * be prepared to handle partially-initialized pools (because this is - * called from ost_thread_init() for cleanup. - */ - tls = thread->t_data; - if (tls != NULL) { - OBD_FREE_PTR(tls); - thread->t_data = NULL; - } - EXIT; -} - -/* - * initialize per-thread page pool (bug 5137). - */ -static int ost_thread_init(struct ptlrpc_thread *thread) -{ - struct ost_thread_local_cache *tls; - - ENTRY; - - LASSERT(thread != NULL); - LASSERT(thread->t_data == NULL); - LASSERTF(thread->t_id <= OSS_THREADS_MAX, "%u\n", thread->t_id); - - OBD_ALLOC_PTR(tls); - if (tls == NULL) - RETURN(-ENOMEM); - thread->t_data = tls; - RETURN(0); -} - -#define OST_WATCHDOG_TIMEOUT (obd_timeout * 1000) - -/* Sigh - really, this is an OSS, the _server_, not the _target_ */ -static int ost_setup(struct obd_device *obd, struct lustre_cfg* lcfg) -{ - struct ost_obd *ost = &obd->u.ost; - struct lprocfs_static_vars lvars; - int oss_min_threads; - int oss_max_threads; - int oss_min_create_threads; - int oss_max_create_threads; - int rc; - ENTRY; - - rc = cfs_cleanup_group_info(); - if (rc) - RETURN(rc); - - lprocfs_ost_init_vars(&lvars); - lprocfs_obd_setup(obd, lvars.obd_vars); - - cfs_sema_init(&ost->ost_health_sem, 1); - - if (oss_num_threads) { - /* If oss_num_threads is set, it is the min and the max. */ - if (oss_num_threads > OSS_THREADS_MAX) - oss_num_threads = OSS_THREADS_MAX; - if (oss_num_threads < OSS_THREADS_MIN) - oss_num_threads = OSS_THREADS_MIN; - oss_max_threads = oss_min_threads = oss_num_threads; - } else { - /* Base min threads on memory and cpus */ - oss_min_threads = - cfs_num_possible_cpus() * CFS_NUM_CACHEPAGES >> - (27 - CFS_PAGE_SHIFT); - if (oss_min_threads < OSS_THREADS_MIN) - oss_min_threads = OSS_THREADS_MIN; - /* Insure a 4x range for dynamic threads */ - if (oss_min_threads > OSS_THREADS_MAX / 4) - oss_min_threads = OSS_THREADS_MAX / 4; - oss_max_threads = min(OSS_THREADS_MAX, oss_min_threads * 4 + 1); - } - - ost->ost_service = - ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE, - OST_MAXREPSIZE, OST_REQUEST_PORTAL, - OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR, - ost_handle, LUSTRE_OSS_NAME, - obd->obd_proc_entry, target_print_req, - oss_min_threads, oss_max_threads, - "ll_ost", LCT_DT_THREAD, NULL); - if (ost->ost_service == NULL) { - CERROR("failed to start service\n"); - GOTO(out_lprocfs, rc = -ENOMEM); - } - - rc = ptlrpc_start_threads(obd, ost->ost_service); - if (rc) - GOTO(out_service, rc = -EINVAL); - - if (oss_num_create_threads) { - if (oss_num_create_threads > OSS_MAX_CREATE_THREADS) - oss_num_create_threads = OSS_MAX_CREATE_THREADS; - if (oss_num_create_threads < OSS_MIN_CREATE_THREADS) - oss_num_create_threads = OSS_MIN_CREATE_THREADS; - oss_min_create_threads = oss_max_create_threads = - oss_num_create_threads; - } else { - oss_min_create_threads = OSS_MIN_CREATE_THREADS; - oss_max_create_threads = OSS_MAX_CREATE_THREADS; - } - - ost->ost_create_service = - ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE, - OST_MAXREPSIZE, OST_CREATE_PORTAL, - OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR, - ost_handle, "ost_create", - obd->obd_proc_entry, target_print_req, - oss_min_create_threads, oss_max_create_threads, - "ll_ost_creat", LCT_DT_THREAD, NULL); - if (ost->ost_create_service == NULL) { - CERROR("failed to start OST create service\n"); - GOTO(out_service, rc = -ENOMEM); - } - - rc = ptlrpc_start_threads(obd, ost->ost_create_service); - if (rc) - GOTO(out_create, rc = -EINVAL); - - ost->ost_io_service = - ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE, - OST_MAXREPSIZE, OST_IO_PORTAL, - OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR, - ost_handle, "ost_io", - obd->obd_proc_entry, target_print_req, - oss_min_threads, oss_max_threads, - "ll_ost_io", LCT_DT_THREAD, ost_hpreq_handler); - if (ost->ost_io_service == NULL) { - CERROR("failed to start OST I/O service\n"); - GOTO(out_create, rc = -ENOMEM); - } - - ost->ost_io_service->srv_init = ost_thread_init; - ost->ost_io_service->srv_done = ost_thread_done; - ost->ost_io_service->srv_cpu_affinity = 1; - rc = ptlrpc_start_threads(obd, ost->ost_io_service); - if (rc) - GOTO(out_io, rc = -EINVAL); - - ping_evictor_start(); - - RETURN(0); - -out_io: - ptlrpc_unregister_service(ost->ost_io_service); - ost->ost_io_service = NULL; -out_create: - ptlrpc_unregister_service(ost->ost_create_service); - ost->ost_create_service = NULL; -out_service: - ptlrpc_unregister_service(ost->ost_service); - ost->ost_service = NULL; -out_lprocfs: - lprocfs_obd_cleanup(obd); - RETURN(rc); -} - -static int ost_cleanup(struct obd_device *obd) -{ - struct ost_obd *ost = &obd->u.ost; - int err = 0; - ENTRY; - - ping_evictor_stop(); - - cfs_spin_lock_bh(&obd->obd_processing_task_lock); - if (obd->obd_recovering) { - target_cancel_recovery_timer(obd); - obd->obd_recovering = 0; - } - cfs_spin_unlock_bh(&obd->obd_processing_task_lock); - - cfs_down(&ost->ost_health_sem); - ptlrpc_unregister_service(ost->ost_service); - ptlrpc_unregister_service(ost->ost_create_service); - ptlrpc_unregister_service(ost->ost_io_service); - ost->ost_service = NULL; - ost->ost_create_service = NULL; - cfs_up(&ost->ost_health_sem); - - lprocfs_obd_cleanup(obd); - - RETURN(err); -} - -static int ost_health_check(struct obd_device *obd) -{ - struct ost_obd *ost = &obd->u.ost; - int rc = 0; - - cfs_down(&ost->ost_health_sem); - rc |= ptlrpc_service_health_check(ost->ost_service); - rc |= ptlrpc_service_health_check(ost->ost_create_service); - rc |= ptlrpc_service_health_check(ost->ost_io_service); - cfs_up(&ost->ost_health_sem); - - /* - * health_check to return 0 on healthy - * and 1 on unhealthy. - */ - if( rc != 0) - rc = 1; - - return rc; -} - -struct ost_thread_local_cache *ost_tls(struct ptlrpc_request *r) -{ - return (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data); -} - -/* use obd ops to offer management infrastructure */ -static struct obd_ops ost_obd_ops = { - .o_owner = THIS_MODULE, - .o_setup = ost_setup, - .o_cleanup = ost_cleanup, - .o_health_check = ost_health_check, -}; - - -static int __init ost_init(void) -{ - struct lprocfs_static_vars lvars; - int rc; - ENTRY; - - lprocfs_ost_init_vars(&lvars); - rc = class_register_type(&ost_obd_ops, NULL, lvars.module_vars, - LUSTRE_OSS_NAME, NULL); + LUSTRE_OSS_NAME, NULL); if (ost_num_threads != 0 && oss_num_threads == 0) { LCONSOLE_INFO("ost_num_threads module parameter is deprecated, " @@ -2567,7 +488,7 @@ static int __init ost_init(void) static void /*__exit*/ ost_exit(void) { - class_unregister_type(LUSTRE_OSS_NAME); + class_unregister_type(LUSTRE_OSS_NAME); } MODULE_AUTHOR("Sun Microsystems, Inc. ");