/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (c) 2003 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * In either case, Lustre is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * license text for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef EXPORT_SYMTAB
#include <lustre_mds.h>
#include <lustre_dlm.h>
#include <lustre_net.h>
+#include <lustre_sec.h>
+#include "ldlm_internal.h"
/* @priority: if non-zero, move the selected to the list head
* @create: if zero, only search in existed connections
if (create) {
imp_conn->oic_conn = ptlrpc_conn;
imp_conn->oic_uuid = *uuid;
- item->oic_last_attempt = 0;
+ imp_conn->oic_last_attempt = 0;
if (priority)
list_add(&imp_conn->oic_item, &imp->imp_conn_list);
else
} else {
spin_unlock(&imp->imp_lock);
GOTO(out_free, rc = -ENOENT);
-
}
spin_unlock(&imp->imp_lock);
if (imp_conn)
OBD_FREE(imp_conn, sizeof(*imp_conn));
out_put:
- ptlrpc_put_connection(ptlrpc_conn);
+ ptlrpc_connection_put(ptlrpc_conn);
RETURN(rc);
}
GOTO(out, rc = -EBUSY);
}
- ptlrpc_put_connection(imp->imp_connection);
+ ptlrpc_connection_put(imp->imp_connection);
imp->imp_connection = NULL;
dlmexp = class_conn2export(&imp->imp_dlm_handle);
if (dlmexp && dlmexp->exp_connection) {
LASSERT(dlmexp->exp_connection ==
imp_conn->oic_conn);
- ptlrpc_put_connection(dlmexp->exp_connection);
+ ptlrpc_connection_put(dlmexp->exp_connection);
dlmexp->exp_connection = NULL;
}
}
list_del(&imp_conn->oic_item);
- ptlrpc_put_connection(imp_conn->oic_conn);
+ ptlrpc_connection_put(imp_conn->oic_conn);
OBD_FREE(imp_conn, sizeof(*imp_conn));
CDEBUG(D_HA, "imp %p@%s: remove connection %s\n",
imp, imp->imp_obd->obd_name, uuid->uuid);
RETURN(rc);
}
+void client_destroy_import(struct obd_import *imp)
+{
+ /* drop security policy instance after all rpc finished/aborted
+ * to let all busy contexts be released. */
+ class_import_get(imp);
+ class_destroy_import(imp);
+ sptlrpc_import_sec_put(imp);
+ class_import_put(imp);
+}
+
/* configure an RPC client OBD device
*
* lcfg parameters:
* 2 - server UUID
* 3 - inactive-on-startup
*/
-int client_obd_setup(struct obd_device *obddev, obd_count len, void *buf)
+int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
{
- struct lustre_cfg* lcfg = buf;
struct client_obd *cli = &obddev->u.cli;
struct obd_import *imp;
struct obd_uuid server_uuid;
/* In a more perfect world, we would hang a ptlrpc_client off of
* obd_type and just use the values from there. */
if (!strcmp(name, LUSTRE_OSC_NAME)) {
-#ifdef __KERNEL__
- /* Can be removed in Lustre 1.8, for compatibility only */
- rq_portal = OST_IO_PORTAL;
-#else
rq_portal = OST_REQUEST_PORTAL;
-#endif
rp_portal = OSC_REPLY_PORTAL;
connect_op = OST_CONNECT;
+ cli->cl_sp_me = LUSTRE_SP_CLI;
+ cli->cl_sp_to = LUSTRE_SP_OST;
} else if (!strcmp(name, LUSTRE_MDC_NAME)) {
rq_portal = MDS_REQUEST_PORTAL;
rp_portal = MDC_REPLY_PORTAL;
connect_op = MDS_CONNECT;
+ cli->cl_sp_me = LUSTRE_SP_CLI;
+ cli->cl_sp_to = LUSTRE_SP_MDT;
} else if (!strcmp(name, LUSTRE_MGC_NAME)) {
rq_portal = MGS_REQUEST_PORTAL;
rp_portal = MGC_REPLY_PORTAL;
connect_op = MGS_CONNECT;
+ cli->cl_sp_me = LUSTRE_SP_MGC;
+ cli->cl_sp_to = LUSTRE_SP_MGS;
+ cli->cl_flvr_mgc.sf_rpc = SPTLRPC_FLVR_INVALID;
} else {
CERROR("unknown client OBD type \"%s\", can't setup\n",
name);
RETURN(-EINVAL);
}
- sema_init(&cli->cl_sem, 1);
+ init_rwsem(&cli->cl_sem);
sema_init(&cli->cl_mgc_sem, 1);
cli->cl_conn_count = 0;
memcpy(server_uuid.uuid, lustre_cfg_buf(lcfg, 2),
cli->cl_dirty_max = num_physpages << (CFS_PAGE_SHIFT - 3);
CFS_INIT_LIST_HEAD(&cli->cl_cache_waiters);
CFS_INIT_LIST_HEAD(&cli->cl_loi_ready_list);
+ CFS_INIT_LIST_HEAD(&cli->cl_loi_hp_ready_list);
CFS_INIT_LIST_HEAD(&cli->cl_loi_write_list);
CFS_INIT_LIST_HEAD(&cli->cl_loi_read_list);
client_obd_list_lock_init(&cli->cl_loi_list_lock);
cli->cl_r_in_flight = 0;
cli->cl_w_in_flight = 0;
+
spin_lock_init(&cli->cl_read_rpc_hist.oh_lock);
spin_lock_init(&cli->cl_write_rpc_hist.oh_lock);
spin_lock_init(&cli->cl_read_page_hist.oh_lock);
spin_lock_init(&cli->cl_write_page_hist.oh_lock);
spin_lock_init(&cli->cl_read_offset_hist.oh_lock);
spin_lock_init(&cli->cl_write_offset_hist.oh_lock);
+ cfs_waitq_init(&cli->cl_destroy_waitq);
+ atomic_set(&cli->cl_destroy_in_flight, 0);
+#ifdef ENABLE_CHECKSUM
+ /* Turn on checksumming by default. */
+ cli->cl_checksum = 1;
+ /*
+ * The supported checksum types will be worked out at connect time
+ * Set cl_chksum* to CRC32 for now to avoid returning screwed info
+ * through procfs.
+ */
+ cli->cl_cksum_type = cli->cl_supp_cksum_types = OBD_CKSUM_CRC32;
+#endif
+ atomic_set(&cli->cl_resends, OSC_DEFAULT_RESENDS);
/* This value may be changed at connect time in
ptlrpc_connect_interpret. */
} else {
cli->cl_max_rpcs_in_flight = OSC_MAX_RIF_DEFAULT;
}
+
rc = ldlm_get_ref();
if (rc) {
CERROR("ldlm_get_ref failed: %d\n", rc);
cli->cl_import = imp;
/* cli->cl_max_mds_{easize,cookiesize} updated by mdc_init_ea_size() */
- cli->cl_max_mds_easize = sizeof(struct lov_mds_md);
+ cli->cl_max_mds_easize = sizeof(struct lov_mds_md_v3);
cli->cl_max_mds_cookiesize = sizeof(struct llog_cookie);
if (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0) {
CDEBUG(D_HA, "marking %s %s->%s as inactive\n",
name, obddev->obd_name,
cli->cl_target_uuid.uuid);
+ spin_lock(&imp->imp_lock);
imp->imp_invalid = 1;
+ spin_unlock(&imp->imp_lock);
}
}
err_import:
class_destroy_import(imp);
err_ldlm:
- ldlm_put_ref(0);
+ ldlm_put_ref();
err:
RETURN(rc);
int client_obd_cleanup(struct obd_device *obddev)
{
ENTRY;
- ldlm_put_ref(obddev->obd_force);
-
+ ldlm_put_ref();
RETURN(0);
}
/* ->o_connect() method for client side (OSC and MDC and MGC) */
-int client_connect_import(struct lustre_handle *dlm_handle,
+int client_connect_import(const struct lu_env *env,
+ struct obd_export **exp,
struct obd_device *obd, struct obd_uuid *cluuid,
- struct obd_connect_data *data)
+ struct obd_connect_data *data, void *localdata)
{
struct client_obd *cli = &obd->u.cli;
struct obd_import *imp = cli->cl_import;
- struct obd_export *exp;
struct obd_connect_data *ocd;
+ struct ldlm_namespace *to_be_freed = NULL;
+ struct lustre_handle conn = { 0 };
int rc;
ENTRY;
- mutex_down(&cli->cl_sem);
- rc = class_connect(dlm_handle, obd, cluuid);
+ *exp = NULL;
+ down_write(&cli->cl_sem);
+ if (cli->cl_conn_count > 0 )
+ GOTO(out_sem, rc = -EALREADY);
+
+ rc = class_connect(&conn, obd, cluuid);
if (rc)
GOTO(out_sem, rc);
-
+
cli->cl_conn_count++;
- if (cli->cl_conn_count > 1)
- GOTO(out_sem, rc);
- exp = class_conn2export(dlm_handle);
+ *exp = class_conn2export(&conn);
if (obd->obd_namespace != NULL)
CERROR("already have namespace!\n");
- obd->obd_namespace = ldlm_namespace_new(obd->obd_name,
- LDLM_NAMESPACE_CLIENT);
+
+ /*
+ * Deadlock case - bug 18380
+ */
+ up_write(&cli->cl_sem);
+ obd->obd_namespace = ldlm_namespace_new(obd, obd->obd_name,
+ LDLM_NAMESPACE_CLIENT,
+ LDLM_NAMESPACE_GREEDY);
+ down_write(&cli->cl_sem);
if (obd->obd_namespace == NULL)
GOTO(out_disco, rc = -ENOMEM);
- imp->imp_dlm_handle = *dlm_handle;
+ imp->imp_dlm_handle = conn;
rc = ptlrpc_init_import(imp);
if (rc != 0)
GOTO(out_ldlm, rc);
LASSERT (imp->imp_state == LUSTRE_IMP_DISCON);
GOTO(out_ldlm, rc);
}
- LASSERT(exp->exp_connection);
+ LASSERT((*exp)->exp_connection);
if (data) {
- LASSERT((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
- ocd->ocd_connect_flags);
+ LASSERTF((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
+ ocd->ocd_connect_flags, "old "LPX64", new "LPX64"\n",
+ data->ocd_connect_flags, ocd->ocd_connect_flags);
data->ocd_connect_flags = ocd->ocd_connect_flags;
}
ptlrpc_pinger_add_import(imp);
+
EXIT;
if (rc) {
out_ldlm:
- ldlm_namespace_free(obd->obd_namespace, 0);
+ ldlm_namespace_free_prior(obd->obd_namespace, imp, 0);
+ to_be_freed = obd->obd_namespace;
obd->obd_namespace = NULL;
out_disco:
cli->cl_conn_count--;
- class_disconnect(exp);
- } else {
- class_export_put(exp);
+ class_disconnect(*exp);
+ *exp = NULL;
}
out_sem:
- mutex_up(&cli->cl_sem);
+ up_write(&cli->cl_sem);
+ if (to_be_freed)
+ ldlm_namespace_free_post(to_be_freed);
+
return rc;
}
struct client_obd *cli;
struct obd_import *imp;
int rc = 0, err;
+ struct ldlm_namespace *to_be_freed = NULL;
ENTRY;
if (!obd) {
cli = &obd->u.cli;
imp = cli->cl_import;
- mutex_down(&cli->cl_sem);
+ down_write(&cli->cl_sem);
if (!cli->cl_conn_count) {
CERROR("disconnecting disconnected device (%s)\n",
obd->obd_name);
- GOTO(out_sem, rc = -EINVAL);
+ GOTO(out_disconnect, rc = -EINVAL);
}
cli->cl_conn_count--;
if (cli->cl_conn_count)
- GOTO(out_no_disconnect, rc = 0);
+ GOTO(out_disconnect, rc = 0);
/* Mark import deactivated now, so we don't try to reconnect if any
* of the cleanup RPCs fails (e.g. ldlm cancel, etc). We don't
* fully deactivate the import, or that would drop all requests. */
+ spin_lock(&imp->imp_lock);
imp->imp_deactive = 1;
+ spin_unlock(&imp->imp_lock);
/* Some non-replayable imports (MDS's OSCs) are pinged, so just
* delete it regardless. (It's safe to delete an import that was
(void)ptlrpc_pinger_del_import(imp);
if (obd->obd_namespace != NULL) {
- /* obd_no_recov == local only */
+ /* obd_force == local only */
ldlm_cli_cancel_unused(obd->obd_namespace, NULL,
- obd->obd_no_recov ? LDLM_FL_LOCAL_ONLY:0,
+ obd->obd_force ? LDLM_FL_LOCAL_ONLY:0,
NULL);
- ldlm_namespace_free(obd->obd_namespace, obd->obd_no_recov);
- obd->obd_namespace = NULL;
+ ldlm_namespace_free_prior(obd->obd_namespace, imp, obd->obd_force);
+ to_be_freed = obd->obd_namespace;
}
- /* Yeah, obd_no_recov also (mainly) means "forced shutdown". */
- if (!obd->obd_no_recov)
- rc = ptlrpc_disconnect_import(imp, 0);
+ /*
+ * there's no necessary to hold sem during diconnecting an import,
+ * and actually it may cause deadlock in gss.
+ */
+ up_write(&cli->cl_sem);
+ rc = ptlrpc_disconnect_import(imp, 0);
+ down_write(&cli->cl_sem);
ptlrpc_invalidate_import(imp);
- ptlrpc_free_rq_pool(imp->imp_rq_pool);
- class_destroy_import(imp);
+ /* set obd_namespace to NULL only after invalidate, because we can have
+ * some connect requests in flight, and his need store a connect flags
+ * in obd_namespace. bug 14260 */
+ obd->obd_namespace = NULL;
+
+ if (imp->imp_rq_pool) {
+ ptlrpc_free_rq_pool(imp->imp_rq_pool);
+ imp->imp_rq_pool = NULL;
+ }
+ client_destroy_import(imp);
cli->cl_import = NULL;
EXIT;
- out_no_disconnect:
+
+ out_disconnect:
+ /* use server style - class_disconnect should be always called for
+ * o_disconnect */
err = class_disconnect(exp);
if (!rc && err)
rc = err;
- out_sem:
- mutex_up(&cli->cl_sem);
+
+ up_write(&cli->cl_sem);
+ if (to_be_freed)
+ ldlm_namespace_free_post(to_be_freed);
+
RETURN(rc);
}
* from old lib/target.c
* -------------------------------------------------------------------------- */
-int target_handle_reconnect(struct lustre_handle *conn, struct obd_export *exp,
- struct obd_uuid *cluuid)
+static int target_handle_reconnect(struct lustre_handle *conn,
+ struct obd_export *exp,
+ struct obd_uuid *cluuid)
{
ENTRY;
if (exp->exp_connection && exp->exp_imp_reverse) {
{
struct obd_export *exp = cb_data;
- CDEBUG(D_HA, "%s: committing for initial connect of %s\n",
+ CDEBUG(D_RPCTRACE, "%s: committing for initial connect of %s\n",
obd->obd_name, exp->exp_client_uuid.uuid);
+
+ spin_lock(&exp->exp_lock);
exp->exp_need_sync = 0;
+ spin_unlock(&exp->exp_lock);
}
EXPORT_SYMBOL(target_client_add_cb);
+static void
+target_start_and_reset_recovery_timer(struct obd_device *obd,
+ struct ptlrpc_request *req,
+ int new_client);
-int target_handle_connect(struct ptlrpc_request *req, svc_handler_t handler)
+int target_handle_connect(struct ptlrpc_request *req)
{
struct obd_device *target, *targref = NULL;
struct obd_export *export = NULL;
struct obd_import *revimp;
struct lustre_handle conn;
+ struct lustre_handle *tmp;
struct obd_uuid tgtuuid;
struct obd_uuid cluuid;
struct obd_uuid remote_uuid;
- struct list_head *p;
- char *str, *tmp;
- int rc = 0, abort_recovery;
- struct obd_connect_data *data;
- int size[2] = { sizeof(struct ptlrpc_body), sizeof(*data) };
+ char *str;
+ int rc = 0;
+ int mds_conn = 0;
+ struct obd_connect_data *data, *tmpdata;
+ lnet_nid_t *client_nid = NULL;
ENTRY;
OBD_RACE(OBD_FAIL_TGT_CONN_RACE);
- LASSERT_REQSWAB(req, REQ_REC_OFF);
- str = lustre_msg_string(req->rq_reqmsg, REQ_REC_OFF, sizeof(tgtuuid)-1);
+ str = req_capsule_client_get(&req->rq_pill, &RMF_TGTUUID);
if (str == NULL) {
- DEBUG_REQ(D_ERROR, req, "bad target UUID for connect\n");
+ DEBUG_REQ(D_ERROR, req, "bad target UUID for connect");
GOTO(out, rc = -EINVAL);
}
- obd_str2uuid (&tgtuuid, str);
+ obd_str2uuid(&tgtuuid, str);
target = class_uuid2obd(&tgtuuid);
- /* COMPAT_146 */
- /* old (pre 1.6) lustre_process_log tries to connect to mdsname
- (eg. mdsA) instead of uuid. */
- if (!target) {
- snprintf((char *)tgtuuid.uuid, sizeof(tgtuuid), "%s_UUID", str);
- target = class_uuid2obd(&tgtuuid);
- }
if (!target)
target = class_name2obd(str);
- /* end COMPAT_146 */
if (!target || target->obd_stopping || !target->obd_set_up) {
- LCONSOLE_ERROR("UUID '%s' is not available "
- " for connect (%s)\n", str,
- !target ? "no target" :
- (target->obd_stopping ? "stopping" :
- "not set up"));
+ LCONSOLE_ERROR_MSG(0x137, "UUID '%s' is not available "
+ " for connect (%s)\n", str,
+ !target ? "no target" :
+ (target->obd_stopping ? "stopping" :
+ "not set up"));
GOTO(out, rc = -ENODEV);
}
if (target->obd_no_conn) {
LCONSOLE_WARN("%s: temporarily refusing client connection "
- "from %s\n", target->obd_name,
+ "from %s\n", target->obd_name,
libcfs_nid2str(req->rq_peer.nid));
GOTO(out, rc = -EAGAIN);
}
- /* Make sure the target isn't cleaned up while we're here. Yes,
- there's still a race between the above check and our incref here.
+ /* Make sure the target isn't cleaned up while we're here. Yes,
+ there's still a race between the above check and our incref here.
Really, class_uuid2obd should take the ref. */
- targref = class_incref(target);
+ targref = class_incref(target, __FUNCTION__, cfs_current());
+
- LASSERT_REQSWAB(req, REQ_REC_OFF + 1);
- str = lustre_msg_string(req->rq_reqmsg, REQ_REC_OFF + 1,
- sizeof(cluuid) - 1);
+ str = req_capsule_client_get(&req->rq_pill, &RMF_CLUUID);
if (str == NULL) {
- DEBUG_REQ(D_ERROR, req, "bad client UUID for connect\n");
+ DEBUG_REQ(D_ERROR, req, "bad client UUID for connect");
GOTO(out, rc = -EINVAL);
}
- obd_str2uuid (&cluuid, str);
+ obd_str2uuid(&cluuid, str);
/* XXX extract a nettype and format accordingly */
switch (sizeof(lnet_nid_t)) {
LBUG();
}
- spin_lock_bh(&target->obd_processing_task_lock);
- abort_recovery = target->obd_abort_recovery;
- spin_unlock_bh(&target->obd_processing_task_lock);
- if (abort_recovery)
- target_abort_recovery(target);
-
- tmp = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF + 2, sizeof conn);
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_CONN);
if (tmp == NULL)
GOTO(out, rc = -EPROTO);
- memcpy(&conn, tmp, sizeof conn);
+ conn = *tmp;
+
+ data = req_capsule_client_get(&req->rq_pill, &RMF_CONNECT_DATA);
+ if (!data)
+ GOTO(out, rc = -EPROTO);
- data = lustre_swab_reqbuf(req, REQ_REC_OFF + 3, sizeof(*data),
- lustre_swab_connect);
- rc = lustre_pack_reply(req, 2, size, NULL);
+ rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
GOTO(out, rc);
if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_LIBCLIENT) {
if (!data) {
DEBUG_REQ(D_WARNING, req, "Refusing old (unversioned) "
- "libclient connection attempt\n");
+ "libclient connection attempt");
GOTO(out, rc = -EPROTO);
} else if (data->ocd_version < LUSTRE_VERSION_CODE -
LUSTRE_VERSION_ALLOWED_OFFSET ||
data->ocd_version > LUSTRE_VERSION_CODE +
LUSTRE_VERSION_ALLOWED_OFFSET) {
DEBUG_REQ(D_WARNING, req, "Refusing %s (%d.%d.%d.%d) "
- "libclient connection attempt\n",
+ "libclient connection attempt",
data->ocd_version < LUSTRE_VERSION_CODE ?
"old" : "new",
OBD_OCD_VERSION_MAJOR(data->ocd_version),
OBD_OCD_VERSION_MINOR(data->ocd_version),
OBD_OCD_VERSION_PATCH(data->ocd_version),
OBD_OCD_VERSION_FIX(data->ocd_version));
- data = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
- offsetof(typeof(*data),
- ocd_version) +
- sizeof(data->ocd_version));
+ data = req_capsule_server_sized_get(&req->rq_pill,
+ &RMF_CONNECT_DATA,
+ offsetof(typeof(*data), ocd_version) +
+ sizeof(data->ocd_version));
if (data) {
data->ocd_connect_flags = OBD_CONNECT_VERSION;
data->ocd_version = LUSTRE_VERSION_CODE;
}
}
+ if ((lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_INITIAL) &&
+ (data->ocd_connect_flags & OBD_CONNECT_MDS))
+ mds_conn = 1;
+
/* lctl gets a backstage, all-access pass. */
if (obd_uuid_equals(&cluuid, &target->obd_uuid))
goto dont_check_exports;
- spin_lock(&target->obd_dev_lock);
- list_for_each(p, &target->obd_exports) {
- export = list_entry(p, struct obd_export, exp_obd_chain);
- if (obd_uuid_equals(&cluuid, &export->exp_client_uuid)) {
- if (export->exp_connecting) { /* bug 9635, et. al. */
- CWARN("%s: exp %p already connecting\n",
- export->exp_obd->obd_name, export);
- export = NULL;
- rc = -EALREADY;
- break;
- }
-
- /* make darn sure this is coming from the same peer
- * if the UUIDs matched */
- if ((export->exp_connection != NULL) &&
- (strcmp(libcfs_nid2str(req->rq_peer.nid),
- libcfs_nid2str(export->exp_connection->c_peer.nid)))) {
- CWARN("%s: cookie %s seen on new NID %s when "
- "existing NID %s is already connected\n",
- target->obd_name, cluuid.uuid,
- libcfs_nid2str(req->rq_peer.nid),
- libcfs_nid2str(export->exp_connection->c_peer.nid));
- export = NULL;
- rc = -EALREADY;
- break;
- }
-
- export->exp_connecting = 1;
- spin_unlock(&target->obd_dev_lock);
- LASSERT(export->exp_obd == target);
+ export = lustre_hash_lookup(target->obd_uuid_hash, &cluuid);
+ if (!export)
+ goto no_export;
- rc = target_handle_reconnect(&conn, export, &cluuid);
- break;
- }
+ /* we've found an export in the hash */
+ if (export->exp_connecting) { /* bug 9635, et. al. */
+ CWARN("%s: exp %p already connecting\n",
+ export->exp_obd->obd_name, export);
+ class_export_put(export);
export = NULL;
+ rc = -EALREADY;
+ } else if (mds_conn && export->exp_connection) {
+ if (req->rq_peer.nid != export->exp_connection->c_peer.nid)
+ /* mds reconnected after failover */
+ CWARN("%s: received MDS connection from NID %s,"
+ " removing former export from NID %s\n",
+ target->obd_name, libcfs_nid2str(req->rq_peer.nid),
+ libcfs_nid2str(export->exp_connection->c_peer.nid));
+ else
+ /* new mds connection from the same nid */
+ CWARN("%s: received new MDS connection from NID %s,"
+ " removing former export from same NID\n",
+ target->obd_name, libcfs_nid2str(req->rq_peer.nid));
+ class_fail_export(export);
+ class_export_put(export);
+ export = NULL;
+ rc = 0;
+ } else if (export->exp_connection != NULL &&
+ req->rq_peer.nid != export->exp_connection->c_peer.nid) {
+ /* in mds failover we have static uuid but nid can be
+ * changed*/
+ CWARN("%s: cookie %s seen on new NID %s when "
+ "existing NID %s is already connected\n",
+ target->obd_name, cluuid.uuid,
+ libcfs_nid2str(req->rq_peer.nid),
+ libcfs_nid2str(export->exp_connection->c_peer.nid));
+ rc = -EALREADY;
+ class_export_put(export);
+ export = NULL;
+ } else {
+ spin_lock(&export->exp_lock);
+ export->exp_connecting = 1;
+ spin_unlock(&export->exp_lock);
+ class_export_put(export);
+ LASSERT(export->exp_obd == target);
+
+ rc = target_handle_reconnect(&conn, export, &cluuid);
}
+
/* If we found an export, we already unlocked. */
if (!export) {
- spin_unlock(&target->obd_dev_lock);
+no_export:
OBD_FAIL_TIMEOUT(OBD_FAIL_TGT_DELAY_CONNECT, 2 * obd_timeout);
} else if (req->rq_export == NULL &&
atomic_read(&export->exp_rpc_count) > 0) {
export, atomic_read(&export->exp_refcount));
GOTO(out, rc = -EBUSY);
} else if (req->rq_export != NULL &&
- atomic_read(&export->exp_rpc_count) > 1) {
+ (atomic_read(&export->exp_rpc_count) > 1)) {
+ /* the current connect rpc has increased exp_rpc_count */
CWARN("%s: refuse reconnection from %s@%s to 0x%p/%d\n",
target->obd_name, cluuid.uuid,
libcfs_nid2str(req->rq_peer.nid),
- export, atomic_read(&export->exp_rpc_count));
+ export, atomic_read(&export->exp_rpc_count) - 1);
+ spin_lock(&export->exp_lock);
+ if (req->rq_export->exp_conn_cnt <
+ lustre_msg_get_conn_cnt(req->rq_reqmsg))
+ /* try to abort active requests */
+ req->rq_export->exp_abort_active_req = 1;
+ spin_unlock(&export->exp_lock);
GOTO(out, rc = -EBUSY);
} else if (lustre_msg_get_conn_cnt(req->rq_reqmsg) == 1) {
CERROR("%s: NID %s (%s) reconnected with 1 conn_cnt; "
OBD_FAIL_TIMEOUT(OBD_FAIL_TGT_DELAY_RECONNECT, 2 * obd_timeout);
}
- /* We want to handle EALREADY but *not* -EALREADY from
- * target_handle_reconnect(), return reconnection state in a flag */
- if (rc == EALREADY) {
- lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_RECONNECT);
- rc = 0;
- } else if (rc) {
+ if (rc < 0) {
GOTO(out, rc);
}
+ CWARN("%s: connection from %s@%s %st"LPU64" exp %p cur %ld last %ld\n",
+ target->obd_name, cluuid.uuid, libcfs_nid2str(req->rq_peer.nid),
+ target->obd_recovering ? "recovering/" : "", data->ocd_transno,
+ export, (long)cfs_time_current_sec(),
+ export ? (long)export->exp_last_request_time : 0);
+
/* Tell the client if we're in recovery. */
- /* If this is the first client, start the recovery timer */
if (target->obd_recovering) {
lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_RECOVERING);
- target_start_recovery_timer(target, handler);
+ /* If this is the first time a client connects,
+ reset the recovery timer */
+ if (rc == 0)
+ target_start_and_reset_recovery_timer(target, req,
+ !export);
+ }
+
+ /* We want to handle EALREADY but *not* -EALREADY from
+ * target_handle_reconnect(), return reconnection state in a flag */
+ if (rc == EALREADY) {
+ lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_RECONNECT);
+ rc = 0;
+ } else {
+ LASSERT(rc == 0);
}
/* Tell the client if we support replayable requests */
if (target->obd_replayable)
lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_REPLAYABLE);
+ client_nid = &req->rq_peer.nid;
if (export == NULL) {
if (target->obd_recovering) {
+ cfs_time_t t;
+
+ t = cfs_timer_deadline(&target->obd_recovery_timer);
+ t = cfs_time_sub(t, cfs_time_current());
CERROR("%s: denying connection for new client %s (%s): "
- "%d clients in recovery for %lds\n",
+ "%d clients in recovery for "CFS_TIME_T"s\n",
target->obd_name,
libcfs_nid2str(req->rq_peer.nid), cluuid.uuid,
target->obd_recoverable_clients,
- cfs_duration_sec(cfs_time_sub(cfs_timer_deadline(&target->obd_recovery_timer),
- cfs_time_current())));
+ cfs_duration_sec(t));
rc = -EBUSY;
} else {
- dont_check_exports:
- rc = obd_connect(&conn, target, &cluuid, data);
+dont_check_exports:
+ rc = obd_connect(req->rq_svc_thread->t_env,
+ &export, target, &cluuid, data,
+ client_nid);
+ if (rc == 0)
+ conn.cookie = export->exp_handle.h_cookie;
}
} else {
- rc = obd_reconnect(export, target, &cluuid, data);
+ rc = obd_reconnect(req->rq_svc_thread->t_env,
+ export, target, &cluuid, data, client_nid);
+ if (rc == 0)
+ /* prevous done via class_conn2export */
+ class_export_get(export);
}
-
if (rc)
GOTO(out, rc);
-
/* Return only the parts of obd_connect_data that we understand, so the
* client knows that we don't understand the rest. */
- if (data)
- memcpy(lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
- sizeof(*data)),
- data, sizeof(*data));
+ if (data) {
+ tmpdata = req_capsule_server_get(&req->rq_pill,
+ &RMF_CONNECT_DATA);
+ //data->ocd_connect_flags &= OBD_CONNECT_SUPPORTED;
+ *tmpdata = *data;
+ }
/* If all else goes well, this is our RPC return code. */
req->rq_status = 0;
lustre_msg_set_handle(req->rq_repmsg, &conn);
- /* ownership of this export ref transfers to the request AFTER we
- * drop any previous reference the request had, but we don't want
- * that to go to zero before we get our new export reference. */
- export = class_conn2export(&conn);
- if (!export) {
- DEBUG_REQ(D_ERROR, req, "Missing export!\n");
- GOTO(out, rc = -ENODEV);
- }
-
/* If the client and the server are the same node, we will already
* have an export that really points to the client's DLM export,
* because we have a shared handles table.
spin_lock(&export->exp_lock);
if (export->exp_conn_cnt >= lustre_msg_get_conn_cnt(req->rq_reqmsg)) {
+ spin_unlock(&export->exp_lock);
CERROR("%s: %s already connected at higher conn_cnt: %d > %d\n",
cluuid.uuid, libcfs_nid2str(req->rq_peer.nid),
export->exp_conn_cnt,
lustre_msg_get_conn_cnt(req->rq_reqmsg));
-
- spin_unlock(&export->exp_lock);
+
GOTO(out, rc = -EALREADY);
}
export->exp_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
- spin_unlock(&export->exp_lock);
+ export->exp_abort_active_req = 0;
/* request from liblustre? Don't evict it for not pinging. */
if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_LIBCLIENT) {
export->exp_libclient = 1;
+ spin_unlock(&export->exp_lock);
+
spin_lock(&target->obd_dev_lock);
list_del_init(&export->exp_obd_chain_timed);
spin_unlock(&target->obd_dev_lock);
+ } else {
+ spin_unlock(&export->exp_lock);
}
if (export->exp_connection != NULL)
- ptlrpc_put_connection(export->exp_connection);
- export->exp_connection = ptlrpc_get_connection(req->rq_peer,
+ ptlrpc_connection_put(export->exp_connection);
+ export->exp_connection = ptlrpc_connection_get(req->rq_peer,
req->rq_self,
&remote_uuid);
+ if (hlist_unhashed(&export->exp_nid_hash)) {
+ lustre_hash_add_unique(export->exp_obd->obd_nid_hash,
+ &export->exp_connection->c_peer.nid,
+ &export->exp_nid_hash);
+ }
- if (lustre_msg_get_op_flags(req->rq_repmsg) & MSG_CONNECT_RECONNECT)
- GOTO(out, rc = 0);
+ spin_lock_bh(&target->obd_processing_task_lock);
+ if (target->obd_recovering && !export->exp_in_recovery) {
+ spin_lock(&export->exp_lock);
+ export->exp_in_recovery = 1;
+ export->exp_req_replay_needed = 1;
+ export->exp_lock_replay_needed = 1;
+ spin_unlock(&export->exp_lock);
+ if ((lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_TRANSNO)
+ && (data->ocd_transno == 0))
+ CWARN("Connect with zero transno!\n");
- if (target->obd_recovering)
+ if ((lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_TRANSNO)
+ && data->ocd_transno < target->obd_next_recovery_transno)
+ target->obd_next_recovery_transno = data->ocd_transno;
target->obd_connected_clients++;
+ /* each connected client is counted as recoverable */
+ target->obd_recoverable_clients++;
+ atomic_inc(&target->obd_req_replay_clients);
+ atomic_inc(&target->obd_lock_replay_clients);
+ if (target->obd_connected_clients ==
+ target->obd_max_recoverable_clients)
+ cfs_waitq_signal(&target->obd_next_transno_waitq);
+ }
+ spin_unlock_bh(&target->obd_processing_task_lock);
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_CONN);
+ conn = *tmp;
+
+ if (export->exp_imp_reverse != NULL) {
+ /* destroyed import can be still referenced in ctxt */
+ obd_set_info_async(export, sizeof(KEY_REVIMP_UPD),
+ KEY_REVIMP_UPD, 0, NULL, NULL);
+
+ /* in some recovery senarios, previous ctx init rpc handled
+ * in sptlrpc_target_export_check() might be used to install
+ * a reverse ctx in this reverse import, and later OBD_CONNECT
+ * using the same gss ctx could reach here and following new
+ * reverse import. note all reverse ctx in new/old import are
+ * actually based on the same gss ctx. so we invalidate ctx
+ * here before destroy import, otherwise flush old import will
+ * lead to remote reverse ctx be destroied, thus the reverse
+ * ctx of new import will lost its peer.
+ * there might be a better way to deal with this???
+ */
+ sptlrpc_import_inval_all_ctx(export->exp_imp_reverse);
- memcpy(&conn,
- lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF + 2, sizeof conn),
- sizeof conn);
+ client_destroy_import(export->exp_imp_reverse);
+ }
- if (export->exp_imp_reverse != NULL)
- class_destroy_import(export->exp_imp_reverse);
+ /* for the rest part, we return -ENOTCONN in case of errors
+ * in order to let client initialize connection again.
+ */
revimp = export->exp_imp_reverse = class_new_import(target);
+ if (!revimp) {
+ CERROR("fail to alloc new reverse import.\n");
+ GOTO(out, rc = -ENOTCONN);
+ }
+
revimp->imp_connection = ptlrpc_connection_addref(export->exp_connection);
revimp->imp_client = &export->exp_obd->obd_ldlm_client;
revimp->imp_remote_handle = conn;
revimp->imp_dlm_fake = 1;
revimp->imp_state = LUSTRE_IMP_FULL;
- if (lustre_msg_get_op_flags(req->rq_reqmsg) & MSG_CONNECT_NEXT_VER) {
- revimp->imp_msg_magic = LUSTRE_MSG_MAGIC_V2;
- lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_NEXT_VER);
+ /* unknown versions will be caught in
+ * ptlrpc_handle_server_req_in->lustre_unpack_msg() */
+ revimp->imp_msg_magic = req->rq_reqmsg->lm_magic;
+
+ if ((export->exp_connect_flags & OBD_CONNECT_AT) &&
+ (revimp->imp_msg_magic != LUSTRE_MSG_MAGIC_V1))
+ revimp->imp_msghdr_flags |= MSGHDR_AT_SUPPORT;
+ else
+ revimp->imp_msghdr_flags &= ~MSGHDR_AT_SUPPORT;
+
+ rc = sptlrpc_import_sec_adapt(revimp, req->rq_svc_ctx, &req->rq_flvr);
+ if (rc) {
+ CERROR("Failed to get sec for reverse import: %d\n", rc);
+ export->exp_imp_reverse = NULL;
+ class_destroy_import(revimp);
}
class_import_put(revimp);
out:
- if (export)
+ if (export) {
+ spin_lock(&export->exp_lock);
export->exp_connecting = 0;
- if (targref)
- class_decref(targref);
+ spin_unlock(&export->exp_lock);
+ }
+ if (targref)
+ class_decref(targref, __FUNCTION__, cfs_current());
if (rc)
req->rq_status = rc;
RETURN(rc);
int rc;
ENTRY;
- rc = lustre_pack_reply(req, 1, NULL, NULL);
+ rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
RETURN(rc);
/* keep the rq_export around so we can send the reply */
req->rq_status = obd_disconnect(class_export_get(req->rq_export));
+
RETURN(0);
}
/* exports created from last_rcvd data, and "fake"
exports created by lctl don't have an import */
if (exp->exp_imp_reverse != NULL)
- class_destroy_import(exp->exp_imp_reverse);
+ client_destroy_import(exp->exp_imp_reverse);
/* We cancel locks at disconnect time, but this will catch any locks
* granted in a race with recovery-induced disconnect. */
* Recovery functions
*/
-
-static void target_release_saved_req(struct ptlrpc_request *req)
+struct ptlrpc_request *ptlrpc_clone_req( struct ptlrpc_request *orig_req)
{
- if (req->rq_reply_state != NULL) {
- ptlrpc_rs_decref(req->rq_reply_state);
- /* req->rq_reply_state = NULL; */
+ struct ptlrpc_request *copy_req;
+ struct lustre_msg *copy_reqmsg;
+ struct ptlrpc_user_desc *udesc = NULL;
+
+ OBD_ALLOC_PTR(copy_req);
+ if (!copy_req)
+ return NULL;
+ OBD_ALLOC(copy_reqmsg, orig_req->rq_reqlen);
+ if (!copy_reqmsg){
+ OBD_FREE_PTR(copy_req);
+ return NULL;
+ }
+
+ if (orig_req->rq_user_desc) {
+ int ngroups = orig_req->rq_user_desc->pud_ngroups;
+
+ OBD_ALLOC(udesc, sptlrpc_user_desc_size(ngroups));
+ if (!udesc) {
+ OBD_FREE(copy_reqmsg, orig_req->rq_reqlen);
+ OBD_FREE_PTR(copy_req);
+ return NULL;
+ }
+ memcpy(udesc, orig_req->rq_user_desc,
+ sptlrpc_user_desc_size(ngroups));
+ }
+
+ *copy_req = *orig_req;
+ memcpy(copy_reqmsg, orig_req->rq_reqmsg, orig_req->rq_reqlen);
+ copy_req->rq_reqmsg = copy_reqmsg;
+ copy_req->rq_user_desc = udesc;
+
+ class_export_rpc_get(copy_req->rq_export);
+ CFS_INIT_LIST_HEAD(©_req->rq_list);
+ CFS_INIT_LIST_HEAD(©_req->rq_replay_list);
+ sptlrpc_svc_ctx_addref(copy_req);
+
+ if (copy_req->rq_reply_state) {
+ /* the copied req takes over the reply state */
+ orig_req->rq_reply_state = NULL;
+ /* to catch further access */
+ orig_req->rq_repmsg = NULL;
+ orig_req->rq_replen = 0;
}
- class_export_put(req->rq_export);
+ return copy_req;
+}
+
+void ptlrpc_free_clone(struct ptlrpc_request *req)
+{
+ LASSERT(list_empty(&req->rq_replay_list));
+
+ ptlrpc_req_drop_rs(req);
+ sptlrpc_svc_ctx_decref(req);
+ class_export_rpc_put(req->rq_export);
+ list_del_init(&req->rq_list);
+
+ if (req->rq_user_desc) {
+ int ngroups = req->rq_user_desc->pud_ngroups;
+ OBD_FREE(req->rq_user_desc, sptlrpc_user_desc_size(ngroups));
+ }
OBD_FREE(req->rq_reqmsg, req->rq_reqlen);
- OBD_FREE(req, sizeof *req);
+ OBD_FREE_PTR(req);
}
-static void target_finish_recovery(struct obd_device *obd)
+static int target_exp_enqueue_req_replay(struct ptlrpc_request *req)
{
- struct list_head *tmp, *n;
+ __u64 transno = lustre_msg_get_transno(req->rq_reqmsg);
+ struct obd_export *exp = req->rq_export;
+ struct ptlrpc_request *reqiter;
+ int dup = 0;
+
+ LASSERT(exp);
+
+ spin_lock(&exp->exp_lock);
+ list_for_each_entry(reqiter, &exp->exp_req_replay_queue,
+ rq_replay_list) {
+ if (lustre_msg_get_transno(reqiter->rq_reqmsg) == transno) {
+ dup = 1;
+ break;
+ }
+ }
+
+ if (dup) {
+ /* we expect it with RESENT and REPLAY flags */
+ if ((lustre_msg_get_flags(req->rq_reqmsg) &
+ (MSG_RESENT | MSG_REPLAY)) != (MSG_RESENT | MSG_REPLAY))
+ CERROR("invalid flags %x of resent replay\n",
+ lustre_msg_get_flags(req->rq_reqmsg));
+ } else {
+ list_add_tail(&req->rq_replay_list, &exp->exp_req_replay_queue);
+ }
+
+ spin_unlock(&exp->exp_lock);
+ return dup;
+}
+
+static void target_exp_dequeue_req_replay(struct ptlrpc_request *req)
+{
+ LASSERT(!list_empty(&req->rq_replay_list));
+ LASSERT(req->rq_export);
+ spin_lock(&req->rq_export->exp_lock);
+ list_del_init(&req->rq_replay_list);
+ spin_unlock(&req->rq_export->exp_lock);
+}
+
+#ifdef __KERNEL__
+static void target_finish_recovery(struct obd_device *obd)
+{
+ ENTRY;
LCONSOLE_INFO("%s: sending delayed replies to recovered clients\n",
obd->obd_name);
ldlm_reprocess_all_ns(obd->obd_namespace);
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (list_empty(&obd->obd_req_replay_queue) &&
+ list_empty(&obd->obd_lock_replay_queue) &&
+ list_empty(&obd->obd_final_req_queue)) {
+ obd->obd_processing_task = 0;
+ } else {
+ CERROR("%s: Recovery queues ( %s%s%s) are not empty\n",
+ obd->obd_name,
+ list_empty(&obd->obd_req_replay_queue) ? "" : "req ",
+ list_empty(&obd->obd_lock_replay_queue) ? "" : "lock ",
+ list_empty(&obd->obd_final_req_queue) ? "" : "final ");
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ LBUG();
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
/* when recovery finished, cleanup orphans on mds and ost */
if (OBT(obd) && OBP(obd, postrecov)) {
int rc = OBP(obd, postrecov)(obd);
- LCONSOLE_WARN("%s: recovery %s: rc %d\n", obd->obd_name,
- rc < 0 ? "failed" : "complete", rc);
+ if (rc < 0)
+ LCONSOLE_WARN("%s: Post recovery failed, rc %d\n",
+ obd->obd_name, rc);
}
- list_for_each_safe(tmp, n, &obd->obd_delayed_reply_queue) {
- struct ptlrpc_request *req;
- req = list_entry(tmp, struct ptlrpc_request, rq_list);
- list_del(&req->rq_list);
- DEBUG_REQ(D_HA, req, "delayed:");
- ptlrpc_reply(req);
- target_release_saved_req(req);
+ obd->obd_recovery_end = cfs_time_current_sec();
+ EXIT;
+}
+
+static void abort_req_replay_queue(struct obd_device *obd)
+{
+ struct ptlrpc_request *req, *n;
+ struct list_head abort_list;
+
+ CFS_INIT_LIST_HEAD(&abort_list);
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ list_splice_init(&obd->obd_req_replay_queue, &abort_list);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ list_for_each_entry_safe(req, n, &abort_list, rq_list) {
+ DEBUG_REQ(D_WARNING, req, "aborted:");
+ req->rq_status = -ENOTCONN;
+ if (ptlrpc_error(req)) {
+ DEBUG_REQ(D_ERROR, req,
+ "failed abort_req_reply; skipping");
+ }
+ target_exp_dequeue_req_replay(req);
+ ptlrpc_free_clone(req);
}
- obd->obd_recovery_end = CURRENT_SECONDS;
}
-static void abort_recovery_queue(struct obd_device *obd)
+static void abort_lock_replay_queue(struct obd_device *obd)
{
- struct ptlrpc_request *req;
- struct list_head *tmp, *n;
- int rc;
+ struct ptlrpc_request *req, *n;
+ struct list_head abort_list;
- list_for_each_safe(tmp, n, &obd->obd_recovery_queue) {
- req = list_entry(tmp, struct ptlrpc_request, rq_list);
- list_del(&req->rq_list);
+ CFS_INIT_LIST_HEAD(&abort_list);
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ list_splice_init(&obd->obd_lock_replay_queue, &abort_list);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ list_for_each_entry_safe(req, n, &abort_list, rq_list){
DEBUG_REQ(D_ERROR, req, "aborted:");
req->rq_status = -ENOTCONN;
- req->rq_type = PTL_RPC_MSG_ERR;
- rc = lustre_pack_reply(req, 1, NULL, NULL);
- if (rc == 0) {
- ptlrpc_reply(req);
- } else {
+ if (ptlrpc_error(req)) {
DEBUG_REQ(D_ERROR, req,
- "packing failed for abort-reply; skipping");
+ "failed abort_lock_reply; skipping");
}
- target_release_saved_req(req);
+ ptlrpc_free_clone(req);
}
}
+#endif
/* Called from a cleanup function if the device is being cleaned up
forcefully. The exports should all have been disconnected already,
*/
void target_cleanup_recovery(struct obd_device *obd)
{
- struct list_head *tmp, *n;
- struct ptlrpc_request *req;
+ struct ptlrpc_request *req, *n;
+ struct list_head clean_list;
ENTRY;
LASSERT(obd->obd_stopping);
+ CFS_INIT_LIST_HEAD(&clean_list);
spin_lock_bh(&obd->obd_processing_task_lock);
if (!obd->obd_recovering) {
spin_unlock_bh(&obd->obd_processing_task_lock);
}
obd->obd_recovering = obd->obd_abort_recovery = 0;
target_cancel_recovery_timer(obd);
- spin_unlock_bh(&obd->obd_processing_task_lock);
- list_for_each_safe(tmp, n, &obd->obd_delayed_reply_queue) {
- req = list_entry(tmp, struct ptlrpc_request, rq_list);
- list_del(&req->rq_list);
- target_release_saved_req(req);
- }
+ list_splice_init(&obd->obd_req_replay_queue, &clean_list);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
- list_for_each_safe(tmp, n, &obd->obd_recovery_queue) {
- req = list_entry(tmp, struct ptlrpc_request, rq_list);
- list_del(&req->rq_list);
- target_release_saved_req(req);
+ list_for_each_entry_safe(req, n, &clean_list, rq_list) {
+ LASSERT(req->rq_reply_state == 0);
+ target_exp_dequeue_req_replay(req);
+ ptlrpc_free_clone(req);
}
- EXIT;
-}
-
-void target_abort_recovery(void *data)
-{
- struct obd_device *obd = data;
- ENTRY;
spin_lock_bh(&obd->obd_processing_task_lock);
- if (!obd->obd_recovering) {
- spin_unlock_bh(&obd->obd_processing_task_lock);
- EXIT;
- return;
- }
- obd->obd_recovering = obd->obd_abort_recovery = 0;
- obd->obd_recoverable_clients = 0;
- target_cancel_recovery_timer(obd);
+ list_splice_init(&obd->obd_lock_replay_queue, &clean_list);
+ list_splice_init(&obd->obd_final_req_queue, &clean_list);
spin_unlock_bh(&obd->obd_processing_task_lock);
- LCONSOLE_WARN("%s: recovery period over; disconnecting unfinished "
- "clients.\n", obd->obd_name);
- class_disconnect_stale_exports(obd);
- abort_recovery_queue(obd);
+ list_for_each_entry_safe(req, n, &clean_list, rq_list){
+ LASSERT(req->rq_reply_state == 0);
+ ptlrpc_free_clone(req);
+ }
- target_finish_recovery(obd);
- CDEBUG(D_HA, "%s: recovery complete\n", obd_uuid2str(&obd->obd_uuid));
EXIT;
}
-static void target_recovery_expired(unsigned long castmeharder)
-{
- struct obd_device *obd = (struct obd_device *)castmeharder;
- CERROR("%s: recovery timed out, aborting\n", obd->obd_name);
- spin_lock_bh(&obd->obd_processing_task_lock);
- if (obd->obd_recovering)
- obd->obd_abort_recovery = 1;
- cfs_waitq_signal(&obd->obd_next_transno_waitq);
- spin_unlock_bh(&obd->obd_processing_task_lock);
-}
-
-
/* obd_processing_task_lock should be held */
void target_cancel_recovery_timer(struct obd_device *obd)
{
cfs_timer_disarm(&obd->obd_recovery_timer);
}
-static void reset_recovery_timer(struct obd_device *obd)
+/* extend = 1 means require at least "duration" seconds left in the timer,
+ extend = 0 means set the total duration (start_recovery_timer) */
+static void reset_recovery_timer(struct obd_device *obd, int duration,
+ int extend)
{
+ cfs_time_t now = cfs_time_current_sec();
+ cfs_duration_t left;
+
spin_lock_bh(&obd->obd_processing_task_lock);
- if (!obd->obd_recovering) {
+ if (!obd->obd_recovering || obd->obd_abort_recovery) {
spin_unlock_bh(&obd->obd_processing_task_lock);
return;
}
- cfs_timer_arm(&obd->obd_recovery_timer,
- cfs_time_shift(OBD_RECOVERY_TIMEOUT));
+
+ left = cfs_time_sub(obd->obd_recovery_end, now);
+
+ if (extend && (duration > left))
+ obd->obd_recovery_timeout += duration - left;
+ else if (!extend && (duration > obd->obd_recovery_timeout))
+ /* Track the client's largest expected replay time */
+ obd->obd_recovery_timeout = duration;
+#ifdef CRAY_XT3
+ /*
+ * If total recovery time already exceed the
+ * obd_recovery_max_time, then CRAY XT3 will
+ * abort the recovery
+ */
+ if(obd->obd_recovery_timeout > obd->obd_recovery_max_time)
+ obd->obd_recovery_timeout = obd->obd_recovery_max_time;
+#endif
+ obd->obd_recovery_end = obd->obd_recovery_start +
+ obd->obd_recovery_timeout;
+ if (!cfs_timer_is_armed(&obd->obd_recovery_timer) ||
+ cfs_time_before(now, obd->obd_recovery_end)) {
+ left = cfs_time_sub(obd->obd_recovery_end, now);
+ cfs_timer_arm(&obd->obd_recovery_timer, cfs_time_shift(left));
+ }
spin_unlock_bh(&obd->obd_processing_task_lock);
- CDEBUG(D_HA, "%s: timer will expire in %u seconds\n", obd->obd_name,
- OBD_RECOVERY_TIMEOUT);
- /* Only used for lprocfs_status */
- obd->obd_recovery_end = CURRENT_SECONDS + OBD_RECOVERY_TIMEOUT;
+ CDEBUG(D_HA, "%s: recovery timer will expire in %u seconds\n",
+ obd->obd_name, (unsigned)left);
}
-
-/* Only start it the first time called */
-void target_start_recovery_timer(struct obd_device *obd, svc_handler_t handler)
+static void check_and_start_recovery_timer(struct obd_device *obd)
{
spin_lock_bh(&obd->obd_processing_task_lock);
- if (obd->obd_recovery_handler) {
+ if (cfs_timer_is_armed(&obd->obd_recovery_timer)) {
spin_unlock_bh(&obd->obd_processing_task_lock);
return;
}
- CWARN("%s: starting recovery timer (%us)\n", obd->obd_name,
- OBD_RECOVERY_TIMEOUT);
- obd->obd_recovery_handler = handler;
- cfs_timer_init(&obd->obd_recovery_timer, target_recovery_expired, obd);
+ CDEBUG(D_HA, "%s: starting recovery timer\n", obd->obd_name);
+ obd->obd_recovery_start = cfs_time_current_sec();
+ /* minimum */
+ obd->obd_recovery_timeout = OBD_RECOVERY_FACTOR * obd_timeout;
spin_unlock_bh(&obd->obd_processing_task_lock);
- reset_recovery_timer(obd);
+ reset_recovery_timer(obd, obd->obd_recovery_timeout, 0);
+}
+
+/* Reset the timer with each new client connection */
+/*
+ * This timer is actually reconnect_timer, which is for making sure
+ * the total recovery window is at least as big as my reconnect
+ * attempt timing. So the initial recovery time_out will be set to
+ * OBD_RECOVERY_FACTOR * obd_timeout. If the timeout coming
+ * from client is bigger than this, then the recovery time_out will
+ * be extend to make sure the client could be reconnected, in the
+ * process, the timeout from the new client should be ignored.
+ */
+
+static void
+target_start_and_reset_recovery_timer(struct obd_device *obd,
+ struct ptlrpc_request *req,
+ int new_client)
+{
+ int service_time = lustre_msg_get_service_time(req->rq_reqmsg);
+
+ if (!new_client && service_time)
+ /* Teach server about old server's estimates, as first guess
+ * at how long new requests will take. */
+ at_add(&req->rq_rqbd->rqbd_service->srv_at_estimate,
+ service_time);
+
+ check_and_start_recovery_timer(obd);
+
+ /* convert the service time to rpc timeout,
+ * reuse service_time to limit stack usage */
+ service_time = at_est2timeout(service_time);
+
+ /* We expect other clients to timeout within service_time, then try
+ * to reconnect, then try the failover server. The max delay between
+ * connect attempts is SWITCH_MAX + SWITCH_INC + INITIAL */
+ service_time += 2 * (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC +
+ INITIAL_CONNECT_TIMEOUT);
+ if (service_time > obd->obd_recovery_timeout && !new_client)
+ reset_recovery_timer(obd, service_time, 0);
}
+#ifdef __KERNEL__
static int check_for_next_transno(struct obd_device *obd)
{
- struct ptlrpc_request *req;
+ struct ptlrpc_request *req = NULL;
int wake_up = 0, connected, completed, queue_len, max;
__u64 next_transno, req_transno;
-
+ ENTRY;
spin_lock_bh(&obd->obd_processing_task_lock);
- req = list_entry(obd->obd_recovery_queue.next,
- struct ptlrpc_request, rq_list);
+
+ if (!list_empty(&obd->obd_req_replay_queue)) {
+ req = list_entry(obd->obd_req_replay_queue.next,
+ struct ptlrpc_request, rq_list);
+ req_transno = lustre_msg_get_transno(req->rq_reqmsg);
+ } else {
+ req_transno = 0;
+ }
+
max = obd->obd_max_recoverable_clients;
- req_transno = lustre_msg_get_transno(req->rq_reqmsg);
connected = obd->obd_connected_clients;
- completed = max - obd->obd_recoverable_clients;
+ completed = connected - obd->obd_recoverable_clients;
queue_len = obd->obd_requests_queued_for_recovery;
next_transno = obd->obd_next_recovery_transno;
- CDEBUG(D_HA,"max: %d, connected: %d, completed: %d, queue_len: %d, "
+ CDEBUG(D_HA, "max: %d, connected: %d, completed: %d, queue_len: %d, "
"req_transno: "LPU64", next_transno: "LPU64"\n",
max, connected, completed, queue_len, req_transno, next_transno);
+
if (obd->obd_abort_recovery) {
CDEBUG(D_HA, "waking for aborted recovery\n");
wake_up = 1;
- } else if (!obd->obd_recovering) {
- CDEBUG(D_HA, "waking for completed recovery (?)\n");
+ } else if (atomic_read(&obd->obd_req_replay_clients) == 0) {
+ CDEBUG(D_HA, "waking for completed recovery\n");
wake_up = 1;
} else if (req_transno == next_transno) {
CDEBUG(D_HA, "waking for next ("LPD64")\n", next_transno);
wake_up = 1;
} else if (queue_len + completed == max) {
- CDEBUG(D_ERROR,
+ /* handle gaps occured due to lost reply. It is allowed gaps
+ * because all clients are connected and there will be resend
+ * for missed transaction */
+ LASSERTF(req_transno >= next_transno,
+ "req_transno: "LPU64", next_transno: "LPU64"\n",
+ req_transno, next_transno);
+
+ CDEBUG(req_transno > obd->obd_last_committed ? D_ERROR : D_HA,
"waking for skipped transno (skip: "LPD64
", ql: %d, comp: %d, conn: %d, next: "LPD64")\n",
- next_transno, queue_len, completed, max, req_transno);
+ next_transno, queue_len, completed, connected, req_transno);
+ obd->obd_next_recovery_transno = req_transno;
+ wake_up = 1;
+ } else if (OBD_FAIL_CHECK(OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS)) {
+ CDEBUG(D_HA, "accepting transno gaps is explicitly allowed"
+ " by fail_lock, waking up ("LPD64")\n", next_transno);
obd->obd_next_recovery_transno = req_transno;
wake_up = 1;
+ } else if (queue_len == atomic_read(&obd->obd_req_replay_clients)) {
+ /* some clients haven't connected in time, but we can try
+ * to replay requests that demand on already committed ones
+ * also, we can replay first non-committed transation */
+ LASSERT(req_transno != 0);
+ if (obd->obd_version_recov ||
+ req_transno == obd->obd_last_committed + 1) {
+ obd->obd_next_recovery_transno = req_transno;
+ } else if (req_transno > obd->obd_last_committed) {
+ /* can't continue recovery: have no needed transno */
+ obd->obd_abort_recovery = 1;
+ CDEBUG(D_ERROR, "abort due to missed clients. max: %d, "
+ "connected: %d, completed: %d, queue_len: %d, "
+ "req_transno: "LPU64", next_transno: "LPU64"\n",
+ max, connected, completed, queue_len,
+ req_transno, next_transno);
+ }
+ wake_up = 1;
}
+
spin_unlock_bh(&obd->obd_processing_task_lock);
- LASSERT(lustre_msg_get_transno(req->rq_reqmsg) >= next_transno);
return wake_up;
}
-static void process_recovery_queue(struct obd_device *obd)
+static struct ptlrpc_request *target_next_replay_req(struct obd_device *obd)
{
- struct ptlrpc_request *req;
- int abort_recovery = 0;
struct l_wait_info lwi = { 0 };
- ENTRY;
+ struct ptlrpc_request *req;
- for (;;) {
- spin_lock_bh(&obd->obd_processing_task_lock);
- LASSERT(obd->obd_processing_task == cfs_curproc_pid());
- req = list_entry(obd->obd_recovery_queue.next,
- struct ptlrpc_request, rq_list);
+ CDEBUG(D_HA, "Waiting for transno "LPD64"\n",
+ obd->obd_next_recovery_transno);
+ l_wait_event(obd->obd_next_transno_waitq,
+ check_for_next_transno(obd), &lwi);
- if (lustre_msg_get_transno(req->rq_reqmsg) !=
- obd->obd_next_recovery_transno) {
- spin_unlock_bh(&obd->obd_processing_task_lock);
- CDEBUG(D_HA, "Waiting for transno "LPD64" (1st is "
- LPD64")\n",
- obd->obd_next_recovery_transno,
- lustre_msg_get_transno(req->rq_reqmsg));
- l_wait_event(obd->obd_next_transno_waitq,
- check_for_next_transno(obd), &lwi);
- spin_lock_bh(&obd->obd_processing_task_lock);
- abort_recovery = obd->obd_abort_recovery;
- spin_unlock_bh(&obd->obd_processing_task_lock);
- if (abort_recovery) {
- target_abort_recovery(obd);
- return;
- }
- continue;
- }
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (obd->obd_abort_recovery) {
+ req = NULL;
+ } else if (!list_empty(&obd->obd_req_replay_queue)) {
+ req = list_entry(obd->obd_req_replay_queue.next,
+ struct ptlrpc_request, rq_list);
list_del_init(&req->rq_list);
obd->obd_requests_queued_for_recovery--;
- spin_unlock_bh(&obd->obd_processing_task_lock);
-
- DEBUG_REQ(D_HA, req, "processing: ");
- (void)obd->obd_recovery_handler(req);
- obd->obd_replayed_requests++;
- reset_recovery_timer(obd);
- /* bug 1580: decide how to properly sync() in recovery */
- //mds_fsync_super(obd->u.obt.obt_sb);
- class_export_put(req->rq_export);
- if (req->rq_reply_state != NULL) {
- ptlrpc_rs_decref(req->rq_reply_state);
- /* req->rq_reply_state = NULL; */
- }
- OBD_FREE(req->rq_reqmsg, req->rq_reqlen);
- OBD_FREE(req, sizeof *req);
- spin_lock_bh(&obd->obd_processing_task_lock);
- obd->obd_next_recovery_transno++;
- if (list_empty(&obd->obd_recovery_queue)) {
- obd->obd_processing_task = 0;
- spin_unlock_bh(&obd->obd_processing_task_lock);
- break;
- }
- spin_unlock_bh(&obd->obd_processing_task_lock);
+ } else {
+ req = NULL;
}
- EXIT;
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ RETURN(req);
}
-int target_queue_recovery_request(struct ptlrpc_request *req,
- struct obd_device *obd)
+static int check_for_next_lock(struct obd_device *obd)
{
- struct list_head *tmp;
- int inserted = 0;
+ struct ptlrpc_request *req = NULL;
+ int wake_up = 0;
+
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (!list_empty(&obd->obd_lock_replay_queue)) {
+ req = list_entry(obd->obd_lock_replay_queue.next,
+ struct ptlrpc_request, rq_list);
+ CDEBUG(D_HA, "waking for next lock\n");
+ wake_up = 1;
+ } else if (atomic_read(&obd->obd_lock_replay_clients) == 0) {
+ CDEBUG(D_HA, "waking for completed lock replay\n");
+ wake_up = 1;
+ } else if (obd->obd_abort_recovery) {
+ CDEBUG(D_HA, "waking for aborted recovery\n");
+ wake_up = 1;
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+
+ return wake_up;
+}
+
+static struct ptlrpc_request *target_next_replay_lock(struct obd_device *obd)
+{
+ struct l_wait_info lwi = { 0 };
+ struct ptlrpc_request *req;
+
+ CDEBUG(D_HA, "Waiting for lock\n");
+ l_wait_event(obd->obd_next_transno_waitq,
+ check_for_next_lock(obd), &lwi);
+
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (obd->obd_abort_recovery) {
+ req = NULL;
+ } else if (!list_empty(&obd->obd_lock_replay_queue)) {
+ req = list_entry(obd->obd_lock_replay_queue.next,
+ struct ptlrpc_request, rq_list);
+ list_del_init(&req->rq_list);
+ } else {
+ req = NULL;
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ return req;
+}
+
+static struct ptlrpc_request *target_next_final_ping(struct obd_device *obd)
+{
+ struct ptlrpc_request *req;
+
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (!list_empty(&obd->obd_final_req_queue)) {
+ req = list_entry(obd->obd_final_req_queue.next,
+ struct ptlrpc_request, rq_list);
+ list_del_init(&req->rq_list);
+ if (req->rq_export->exp_in_recovery) {
+ spin_lock(&req->rq_export->exp_lock);
+ req->rq_export->exp_in_recovery = 0;
+ spin_unlock(&req->rq_export->exp_lock);
+ }
+ } else {
+ req = NULL;
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ return req;
+}
+
+static inline int req_vbr_done(struct obd_export *exp)
+{
+ return (exp->exp_vbr_failed == 0);
+}
+
+static inline int req_replay_done(struct obd_export *exp)
+{
+ return (exp->exp_req_replay_needed == 0);
+}
+
+static inline int lock_replay_done(struct obd_export *exp)
+{
+ return (exp->exp_lock_replay_needed == 0);
+}
+
+static inline int connect_done(struct obd_export *exp)
+{
+ return (exp->exp_in_recovery != 0);
+}
+
+static int check_for_clients(struct obd_device *obd)
+{
+ if (obd->obd_abort_recovery || obd->obd_version_recov)
+ return 1;
+ LASSERT(obd->obd_connected_clients <= obd->obd_max_recoverable_clients);
+ if (obd->obd_no_conn == 0 &&
+ obd->obd_connected_clients == obd->obd_max_recoverable_clients)
+ return 1;
+ return 0;
+}
+
+static int handle_recovery_req(struct ptlrpc_thread *thread,
+ struct ptlrpc_request *req,
+ svc_handler_t handler)
+{
+ int rc;
+ ENTRY;
+
+ rc = lu_context_init(&req->rq_session, LCT_SESSION);
+ if (rc) {
+ CERROR("Failure to initialize session: %d\n", rc);
+ return rc;
+ }
+ req->rq_session.lc_thread = thread;
+ lu_context_enter(&req->rq_session);
+ req->rq_svc_thread = thread;
+ req->rq_svc_thread->t_env->le_ses = &req->rq_session;
+
+ /* thread context */
+ lu_context_enter(&thread->t_env->le_ctx);
+ (void)handler(req);
+ lu_context_exit(&thread->t_env->le_ctx);
+
+ lu_context_exit(&req->rq_session);
+ lu_context_fini(&req->rq_session);
+ /* don't reset timer for final stage */
+ if (!req_replay_done(req->rq_export) ||
+ !lock_replay_done(req->rq_export))
+ reset_recovery_timer(class_exp2obd(req->rq_export),
+ AT_OFF ? obd_timeout :
+ at_get(&req->rq_rqbd->rqbd_service->srv_at_estimate), 1);
+
+ /**
+ * bz18031: increase next_recovery_transno before ptlrpc_free_clone()
+ * will drop exp_rpc reference
+ */
+ if (!req_replay_done(req->rq_export)) {
+ spin_lock_bh(&req->rq_export->exp_obd->obd_processing_task_lock);
+ req->rq_export->exp_obd->obd_next_recovery_transno++;
+ spin_unlock_bh(&req->rq_export->exp_obd->obd_processing_task_lock);
+ target_exp_dequeue_req_replay(req);
+ }
+ ptlrpc_free_clone(req);
+ RETURN(0);
+}
+
+static int target_recovery_thread(void *arg)
+{
+ struct lu_target *lut = arg;
+ struct obd_device *obd = lut->lut_obd;
+ struct ptlrpc_request *req;
+ struct target_recovery_data *trd = &obd->obd_recovery_data;
+ struct l_wait_info lwi = { 0 };
+ unsigned long delta;
+ unsigned long flags;
+ struct lu_env env;
+ struct ptlrpc_thread fake_svc_thread, *thread = &fake_svc_thread;
+ int rc = 0;
+ ENTRY;
+
+ cfs_daemonize("tgt_recov");
+
+ SIGNAL_MASK_LOCK(current, flags);
+ sigfillset(¤t->blocked);
+ RECALC_SIGPENDING;
+ SIGNAL_MASK_UNLOCK(current, flags);
+
+ rc = lu_context_init(&env.le_ctx, LCT_MD_THREAD);
+ if (rc)
+ RETURN(rc);
+
+ thread->t_env = &env;
+ env.le_ctx.lc_thread = thread;
+
+ CERROR("%s: started recovery thread pid %d\n", obd->obd_name,
+ cfs_curproc_pid());
+ trd->trd_processing_task = cfs_curproc_pid();
+
+ obd->obd_recovering = 1;
+ complete(&trd->trd_starting);
+
+ /* first of all, we have to know the first transno to replay */
+ obd->obd_abort_recovery = 0;
+ l_wait_event(obd->obd_next_transno_waitq,
+ check_for_clients(obd), &lwi);
+
+ /* If some clients haven't connected in time, evict them */
+ if (obd->obd_connected_clients < obd->obd_max_recoverable_clients) {
+ CWARN("Some clients haven't connect in time (%d/%d),"
+ "evict them\n", obd->obd_connected_clients,
+ obd->obd_max_recoverable_clients);
+ class_disconnect_stale_exports(obd, connect_done,
+ exp_flags_from_obd(obd) |
+ OBD_OPT_ABORT_RECOV);
+ /**
+ * if recovery proceeds with versions then some clients may be
+ * timed out waiting for others and trying to reconnect.
+ * Extend timer for such reconnect cases.
+ */
+ if (obd->obd_version_recov)
+ reset_recovery_timer(obd, RECONNECT_DELAY_MAX * 2, 1);
+ }
+
+ /* next stage: replay requests */
+ delta = jiffies;
+ obd->obd_req_replaying = 1;
+ CDEBUG(D_INFO, "1: request replay stage - %d clients from t"LPU64"\n",
+ atomic_read(&obd->obd_req_replay_clients),
+ obd->obd_next_recovery_transno);
+ while ((req = target_next_replay_req(obd))) {
+ LASSERT(trd->trd_processing_task == cfs_curproc_pid());
+ DEBUG_REQ(D_HA, req, "processing t"LPD64" from %s",
+ lustre_msg_get_transno(req->rq_reqmsg),
+ libcfs_nid2str(req->rq_peer.nid));
+ handle_recovery_req(thread, req,
+ trd->trd_recovery_handler);
+ obd->obd_replayed_requests++;
+ }
+
+ /* If some clients haven't replayed requests in time, evict them */
+ if (obd->obd_abort_recovery) {
+ CDEBUG(D_WARNING, "req replay is aborted\n");
+ class_disconnect_stale_exports(obd, req_replay_done,
+ exp_flags_from_obd(obd) |
+ OBD_OPT_ABORT_RECOV);
+ abort_req_replay_queue(obd);
+ }
+ LASSERT(list_empty(&obd->obd_req_replay_queue));
+
+ /* The second stage: replay locks */
+ CDEBUG(D_INFO, "2: lock replay stage - %d clients\n",
+ atomic_read(&obd->obd_lock_replay_clients));
+ while ((req = target_next_replay_lock(obd))) {
+ LASSERT(trd->trd_processing_task == cfs_curproc_pid());
+ DEBUG_REQ(D_HA, req, "processing lock from %s: ",
+ libcfs_nid2str(req->rq_peer.nid));
+ handle_recovery_req(thread, req,
+ trd->trd_recovery_handler);
+ obd->obd_replayed_locks++;
+ }
+
+ /* If some clients haven't replayed requests in time, evict them */
+ if (obd->obd_abort_recovery) {
+ CERROR("lock replay is aborted\n");
+ class_disconnect_stale_exports(obd, lock_replay_done,
+ exp_flags_from_obd(obd) |
+ OBD_OPT_ABORT_RECOV);
+ abort_lock_replay_queue(obd);
+ }
+ LASSERT(list_empty(&obd->obd_lock_replay_queue));
+
+ /* The third stage: reply on final pings */
+ CDEBUG(D_INFO, "3: final stage - process recovery completion pings\n");
+ /** evict exports failed VBR */
+ class_disconnect_stale_exports(obd, req_vbr_done,
+ exp_flags_from_obd(obd) |
+ OBD_OPT_ABORT_RECOV);
+ /** Update server last boot epoch */
+ lut_boot_epoch_update(lut);
+ /* We drop recoverying flag to forward all new requests
+ * to regular mds_handle() since now */
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ obd->obd_recovering = obd->obd_abort_recovery = 0;
+ target_cancel_recovery_timer(obd);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ while ((req = target_next_final_ping(obd))) {
+ LASSERT(trd->trd_processing_task == cfs_curproc_pid());
+ DEBUG_REQ(D_HA, req, "processing final ping from %s: ",
+ libcfs_nid2str(req->rq_peer.nid));
+ handle_recovery_req(thread, req,
+ trd->trd_recovery_handler);
+ }
+
+ delta = (jiffies - delta) / HZ;
+ CDEBUG(D_INFO,"4: recovery completed in %lus - %d/%d reqs/locks\n",
+ delta, obd->obd_replayed_requests, obd->obd_replayed_locks);
+ LASSERT(atomic_read(&obd->obd_req_replay_clients) == 0);
+ LASSERT(atomic_read(&obd->obd_lock_replay_clients) == 0);
+ if (delta > obd_timeout * OBD_RECOVERY_FACTOR) {
+ CWARN("too long recovery - read logs\n");
+ libcfs_debug_dumplog();
+ }
+
+ target_finish_recovery(obd);
+
+ lu_context_fini(&env.le_ctx);
+ trd->trd_processing_task = 0;
+ complete(&trd->trd_finishing);
+ RETURN(rc);
+}
+
+static int target_start_recovery_thread(struct lu_target *lut,
+ svc_handler_t handler)
+{
+ struct obd_device *obd = lut->lut_obd;
+ int rc = 0;
+ struct target_recovery_data *trd = &obd->obd_recovery_data;
+
+ memset(trd, 0, sizeof(*trd));
+ init_completion(&trd->trd_starting);
+ init_completion(&trd->trd_finishing);
+ trd->trd_recovery_handler = handler;
+
+ if (kernel_thread(target_recovery_thread, lut, 0) > 0) {
+ wait_for_completion(&trd->trd_starting);
+ LASSERT(obd->obd_recovering != 0);
+ } else
+ rc = -ECHILD;
+
+ return rc;
+}
+
+void target_stop_recovery_thread(struct obd_device *obd)
+{
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (obd->obd_recovery_data.trd_processing_task > 0) {
+ struct target_recovery_data *trd = &obd->obd_recovery_data;
+ CERROR("%s: Aborting recovery\n", obd->obd_name);
+ obd->obd_abort_recovery = 1;
+ cfs_waitq_signal(&obd->obd_next_transno_waitq);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ wait_for_completion(&trd->trd_finishing);
+ } else {
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ }
+}
+
+void target_recovery_fini(struct obd_device *obd)
+{
+ class_disconnect_exports(obd);
+ target_stop_recovery_thread(obd);
+ target_cleanup_recovery(obd);
+}
+EXPORT_SYMBOL(target_recovery_fini);
+
+static void target_recovery_expired(unsigned long castmeharder)
+{
+ struct obd_device *obd = (struct obd_device *)castmeharder;
+ CDEBUG(D_HA, "%s: recovery timed out; %d clients never reconnected "
+ "after %lds (%d clients did)\n",
+ obd->obd_name, obd->obd_recoverable_clients,
+ cfs_time_current_sec()- obd->obd_recovery_start,
+ obd->obd_connected_clients);
+
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ obd->obd_version_recov = 1;
+ CDEBUG(D_INFO, "VBR is used for %d clients from t"LPU64"\n",
+ atomic_read(&obd->obd_req_replay_clients),
+ obd->obd_next_recovery_transno);
+ cfs_waitq_signal(&obd->obd_next_transno_waitq);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+}
+
+void target_recovery_init(struct lu_target *lut, svc_handler_t handler)
+{
+ struct obd_device *obd = lut->lut_obd;
+ if (obd->obd_max_recoverable_clients == 0) {
+ /** Update server last boot epoch */
+ lut_boot_epoch_update(lut);
+ return;
+ }
+
+ CWARN("RECOVERY: service %s, %d recoverable clients, "
+ "last_transno "LPU64"\n", obd->obd_name,
+ obd->obd_max_recoverable_clients, obd->obd_last_committed);
+ LASSERT(obd->obd_stopping == 0);
+ obd->obd_next_recovery_transno = obd->obd_last_committed + 1;
+ obd->obd_recovery_start = 0;
+ obd->obd_recovery_end = 0;
+ obd->obd_recovery_timeout = OBD_RECOVERY_FACTOR * obd_timeout;
+ /* bz13079: this should be set to desired value for ost but not for mds */
+ obd->obd_recovery_max_time = OBD_RECOVERY_MAX_TIME;
+ cfs_timer_init(&obd->obd_recovery_timer, target_recovery_expired, obd);
+ target_start_recovery_thread(lut, handler);
+}
+EXPORT_SYMBOL(target_recovery_init);
+
+#endif
+
+static int target_process_req_flags(struct obd_device *obd,
+ struct ptlrpc_request *req)
+{
+ struct obd_export *exp = req->rq_export;
+ LASSERT(exp != NULL);
+ if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REQ_REPLAY_DONE) {
+ /* client declares he's ready to replay locks */
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (exp->exp_req_replay_needed) {
+ LASSERT(atomic_read(&obd->obd_req_replay_clients) > 0);
+ spin_lock(&exp->exp_lock);
+ exp->exp_req_replay_needed = 0;
+ spin_unlock(&exp->exp_lock);
+ atomic_dec(&obd->obd_req_replay_clients);
+ LASSERT(obd->obd_recoverable_clients > 0);
+ obd->obd_recoverable_clients--;
+ if (atomic_read(&obd->obd_req_replay_clients) == 0)
+ CDEBUG(D_HA, "all clients have replayed reqs\n");
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ }
+ if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_LOCK_REPLAY_DONE) {
+ /* client declares he's ready to complete recovery
+ * so, we put the request on th final queue */
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (exp->exp_lock_replay_needed) {
+ LASSERT(atomic_read(&obd->obd_lock_replay_clients) > 0);
+ spin_lock(&exp->exp_lock);
+ exp->exp_lock_replay_needed = 0;
+ spin_unlock(&exp->exp_lock);
+ atomic_dec(&obd->obd_lock_replay_clients);
+ if (atomic_read(&obd->obd_lock_replay_clients) == 0)
+ CDEBUG(D_HA, "all clients have replayed locks\n");
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ }
+
+ return 0;
+}
+
+int target_queue_recovery_request(struct ptlrpc_request *req,
+ struct obd_device *obd)
+{
+ struct list_head *tmp;
+ int inserted = 0;
__u64 transno = lustre_msg_get_transno(req->rq_reqmsg);
- struct ptlrpc_request *saved_req;
- struct lustre_msg *reqmsg;
+ ENTRY;
+
+ if (obd->obd_recovery_data.trd_processing_task == cfs_curproc_pid()) {
+ /* Processing the queue right now, don't re-add. */
+ RETURN(1);
+ }
+
+ target_process_req_flags(obd, req);
+
+ if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_LOCK_REPLAY_DONE) {
+ /* client declares he's ready to complete recovery
+ * so, we put the request on th final queue */
+ req = ptlrpc_clone_req(req);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+ DEBUG_REQ(D_HA, req, "queue final req");
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ cfs_waitq_signal(&obd->obd_next_transno_waitq);
+ if (obd->obd_recovering)
+ list_add_tail(&req->rq_list, &obd->obd_final_req_queue);
+ else {
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ ptlrpc_free_clone(req);
+ if (obd->obd_stopping) {
+ RETURN(-ENOTCONN);
+ } else {
+ RETURN(1);
+ }
+ }
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ RETURN(0);
+ }
+ if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REQ_REPLAY_DONE) {
+ /* client declares he's ready to replay locks */
+ req = ptlrpc_clone_req(req);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+ DEBUG_REQ(D_HA, req, "queue lock replay req");
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ cfs_waitq_signal(&obd->obd_next_transno_waitq);
+ LASSERT(obd->obd_recovering);
+ /* usually due to recovery abort */
+ if (!req->rq_export->exp_in_recovery) {
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ ptlrpc_free_clone(req);
+ RETURN(-ENOTCONN);
+ }
+ LASSERT(req->rq_export->exp_lock_replay_needed);
+ list_add_tail(&req->rq_list, &obd->obd_lock_replay_queue);
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ RETURN(0);
+ }
/* CAVEAT EMPTOR: The incoming request message has been swabbed
* (i.e. buflens etc are in my own byte order), but type-dependent
if (!transno) {
CFS_INIT_LIST_HEAD(&req->rq_list);
DEBUG_REQ(D_HA, req, "not queueing");
- return 1;
+ RETURN(1);
}
- /* XXX If I were a real man, these LBUGs would be sane cleanups. */
- /* XXX just like the request-dup code in queue_final_reply */
- OBD_ALLOC(saved_req, sizeof *saved_req);
- if (!saved_req)
- LBUG();
- OBD_ALLOC(reqmsg, req->rq_reqlen);
- if (!reqmsg)
- LBUG();
-
spin_lock_bh(&obd->obd_processing_task_lock);
/* If we're processing the queue, we want don't want to queue this
* Also, a resent, replayed request that has already been
* handled will pass through here and be processed immediately.
*/
- if (obd->obd_processing_task == cfs_curproc_pid() ||
- transno < obd->obd_next_recovery_transno) {
+ CWARN("Next recovery transno: "LPU64", current: "LPU64", replaying: %i\n",
+ obd->obd_next_recovery_transno, transno, obd->obd_req_replaying);
+ if (transno < obd->obd_next_recovery_transno && obd->obd_req_replaying) {
/* Processing the queue right now, don't re-add. */
LASSERT(list_empty(&req->rq_list));
spin_unlock_bh(&obd->obd_processing_task_lock);
- OBD_FREE(reqmsg, req->rq_reqlen);
- OBD_FREE(saved_req, sizeof *saved_req);
- return 1;
+ RETURN(1);
}
+ spin_unlock_bh(&obd->obd_processing_task_lock);
- /* A resent, replayed request that is still on the queue; just drop it.
- The queued request will handle this. */
- if ((lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT|MSG_REPLAY)) ==
- (MSG_RESENT | MSG_REPLAY)) {
- DEBUG_REQ(D_ERROR, req, "dropping resent queued req");
+ if (OBD_FAIL_CHECK(OBD_FAIL_TGT_REPLAY_DROP))
+ RETURN(0);
+
+ req = ptlrpc_clone_req(req);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ LASSERT(obd->obd_recovering);
+ if (!req->rq_export->exp_in_recovery) {
spin_unlock_bh(&obd->obd_processing_task_lock);
- OBD_FREE(reqmsg, req->rq_reqlen);
- OBD_FREE(saved_req, sizeof *saved_req);
- return 0;
+ ptlrpc_free_clone(req);
+ RETURN(-ENOTCONN);
}
+ LASSERT(req->rq_export->exp_req_replay_needed);
- memcpy(saved_req, req, sizeof *req);
- memcpy(reqmsg, req->rq_reqmsg, req->rq_reqlen);
- req = saved_req;
- req->rq_reqmsg = reqmsg;
- class_export_get(req->rq_export);
- CFS_INIT_LIST_HEAD(&req->rq_list);
+ if (target_exp_enqueue_req_replay(req)) {
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ DEBUG_REQ(D_ERROR, req, "dropping resent queued req");
+ ptlrpc_free_clone(req);
+ RETURN(0);
+ }
/* XXX O(n^2) */
- list_for_each(tmp, &obd->obd_recovery_queue) {
+ list_for_each(tmp, &obd->obd_req_replay_queue) {
struct ptlrpc_request *reqiter =
list_entry(tmp, struct ptlrpc_request, rq_list);
inserted = 1;
break;
}
- }
- if (!inserted) {
- list_add_tail(&req->rq_list, &obd->obd_recovery_queue);
+ if (unlikely(lustre_msg_get_transno(reqiter->rq_reqmsg) ==
+ transno)) {
+ DEBUG_REQ(D_ERROR, req, "dropping replay: transno "
+ "has been claimed by another client");
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ target_exp_dequeue_req_replay(req);
+ ptlrpc_free_clone(req);
+ RETURN(0);
+ }
}
- obd->obd_requests_queued_for_recovery++;
-
- if (obd->obd_processing_task != 0) {
- /* Someone else is processing this queue, we'll leave it to
- * them.
- */
- cfs_waitq_signal(&obd->obd_next_transno_waitq);
- spin_unlock_bh(&obd->obd_processing_task_lock);
- return 0;
- }
+ if (!inserted)
+ list_add_tail(&req->rq_list, &obd->obd_req_replay_queue);
- /* Nobody is processing, and we know there's (at least) one to process
- * now, so we'll do the honours.
- */
- obd->obd_processing_task = cfs_curproc_pid();
+ obd->obd_requests_queued_for_recovery++;
+ cfs_waitq_signal(&obd->obd_next_transno_waitq);
spin_unlock_bh(&obd->obd_processing_task_lock);
-
- process_recovery_queue(obd);
- return 0;
+ RETURN(0);
}
struct obd_device * target_req2obd(struct ptlrpc_request *req)
return req->rq_export->exp_obd;
}
-int target_queue_final_reply(struct ptlrpc_request *req, int rc)
+static inline struct ldlm_pool *ldlm_exp2pl(struct obd_export *exp)
{
- struct obd_device *obd = target_req2obd(req);
- struct ptlrpc_request *saved_req;
- struct lustre_msg *reqmsg;
- int recovery_done = 0;
+ LASSERT(exp != NULL);
+ return &exp->exp_obd->obd_namespace->ns_pool;
+}
- LASSERT ((rc == 0) == (req->rq_reply_state != NULL));
+/**
+ * Packs current SLV and Limit into \a req.
+ */
+int target_pack_pool_reply(struct ptlrpc_request *req)
+{
+ struct obd_device *obd;
+ ENTRY;
- if (rc) {
- /* Just like ptlrpc_error, but without the sending. */
- rc = lustre_pack_reply(req, 1, NULL, NULL);
- LASSERT(rc == 0); /* XXX handle this */
- req->rq_type = PTL_RPC_MSG_ERR;
+ /*
+ * Check that we still have all structures alive as this may
+ * be some late rpc in shutdown time.
+ */
+ if (unlikely(!req->rq_export || !req->rq_export->exp_obd ||
+ !exp_connect_lru_resize(req->rq_export))) {
+ lustre_msg_set_slv(req->rq_repmsg, 0);
+ lustre_msg_set_limit(req->rq_repmsg, 0);
+ RETURN(0);
}
- LASSERT (!req->rq_reply_state->rs_difficult);
- LASSERT(list_empty(&req->rq_list));
- /* XXX a bit like the request-dup code in queue_recovery_request */
- OBD_ALLOC(saved_req, sizeof *saved_req);
- if (!saved_req)
- LBUG();
- OBD_ALLOC(reqmsg, req->rq_reqlen);
- if (!reqmsg)
- LBUG();
- *saved_req = *req;
- memcpy(reqmsg, req->rq_reqmsg, req->rq_reqlen);
-
- /* Don't race cleanup */
- spin_lock_bh(&obd->obd_processing_task_lock);
- if (obd->obd_stopping) {
- spin_unlock_bh(&obd->obd_processing_task_lock);
- OBD_FREE(reqmsg, req->rq_reqlen);
- OBD_FREE(saved_req, sizeof *req);
- req->rq_status = -ENOTCONN;
- /* rv is ignored anyhow */
- return -ENOTCONN;
- }
- ptlrpc_rs_addref(req->rq_reply_state); /* +1 ref for saved reply */
- req = saved_req;
- req->rq_reqmsg = reqmsg;
- class_export_get(req->rq_export);
- list_add(&req->rq_list, &obd->obd_delayed_reply_queue);
-
- /* only count the first "replay over" request from each
- export */
- if (req->rq_export->exp_replay_needed) {
- --obd->obd_recoverable_clients;
- req->rq_export->exp_replay_needed = 0;
- }
- recovery_done = (obd->obd_recoverable_clients == 0);
- spin_unlock_bh(&obd->obd_processing_task_lock);
-
- OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
- if (recovery_done) {
- spin_lock_bh(&obd->obd_processing_task_lock);
- obd->obd_recovering = obd->obd_abort_recovery = 0;
- target_cancel_recovery_timer(obd);
- spin_unlock_bh(&obd->obd_processing_task_lock);
+ /*
+ * OBD is alive here as export is alive, which we checked above.
+ */
+ obd = req->rq_export->exp_obd;
- target_finish_recovery(obd);
- CDEBUG(D_HA, "%s: recovery complete\n",
- obd_uuid2str(&obd->obd_uuid));
- } else {
- CWARN("%s: %d recoverable clients remain\n",
- obd->obd_name, obd->obd_recoverable_clients);
- cfs_waitq_signal(&obd->obd_next_transno_waitq);
- }
+ read_lock(&obd->obd_pool_lock);
+ lustre_msg_set_slv(req->rq_repmsg, obd->obd_pool_slv);
+ lustre_msg_set_limit(req->rq_repmsg, obd->obd_pool_limit);
+ read_unlock(&obd->obd_pool_lock);
- return 1;
+ RETURN(0);
}
-int
-target_send_reply_msg (struct ptlrpc_request *req, int rc, int fail_id)
+int target_send_reply_msg(struct ptlrpc_request *req, int rc, int fail_id)
{
- if (OBD_FAIL_CHECK(fail_id | OBD_FAIL_ONCE)) {
- obd_fail_loc |= OBD_FAIL_ONCE | OBD_FAILED;
+ if (OBD_FAIL_CHECK_ORSET(fail_id & ~OBD_FAIL_ONCE, OBD_FAIL_ONCE)) {
DEBUG_REQ(D_ERROR, req, "dropping reply");
return (-ECOMM);
}
- if (rc) {
+ if (unlikely(rc)) {
DEBUG_REQ(D_ERROR, req, "processing error (%d)", rc);
req->rq_status = rc;
- return (ptlrpc_error(req));
+ return (ptlrpc_send_error(req, 1));
} else {
DEBUG_REQ(D_NET, req, "sending reply");
}
- return (ptlrpc_send_reply(req, 1));
+ return (ptlrpc_send_reply(req, PTLRPC_REPLY_MAYBE_DIFFICULT));
}
-void
-target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
+void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
{
int netrc;
struct ptlrpc_reply_state *rs;
struct obd_device *obd;
struct obd_export *exp;
struct ptlrpc_service *svc;
+ ENTRY;
+
+ if (req->rq_no_reply) {
+ EXIT;
+ return;
+ }
svc = req->rq_rqbd->rqbd_service;
rs = req->rq_reply_state;
if (rs == NULL || !rs->rs_difficult) {
/* no notifiers */
target_send_reply_msg (req, rc, fail_id);
+ EXIT;
return;
}
rs->rs_xid = req->rq_xid;
rs->rs_transno = req->rq_transno;
rs->rs_export = exp;
+ rs->rs_opc = lustre_msg_get_opc(rs->rs_msg);
- spin_lock(&obd->obd_uncommitted_replies_lock);
-
- if (rs->rs_transno > obd->obd_last_committed) {
+ spin_lock(&exp->exp_uncommitted_replies_lock);
+ CDEBUG(D_NET, "rs transno = "LPU64", last committed = "LPU64"\n",
+ rs->rs_transno, exp->exp_last_committed);
+ if (rs->rs_transno > exp->exp_last_committed) {
/* not committed already */
- list_add_tail (&rs->rs_obd_list,
- &obd->obd_uncommitted_replies);
+ list_add_tail(&rs->rs_obd_list,
+ &exp->exp_uncommitted_replies);
}
+ spin_unlock (&exp->exp_uncommitted_replies_lock);
- spin_unlock (&obd->obd_uncommitted_replies_lock);
- spin_lock (&exp->exp_lock);
-
- list_add_tail (&rs->rs_exp_list, &exp->exp_outstanding_replies);
-
+ spin_lock(&exp->exp_lock);
+ list_add_tail(&rs->rs_exp_list, &exp->exp_outstanding_replies);
spin_unlock(&exp->exp_lock);
netrc = target_send_reply_msg (req, rc, fail_id);
spin_lock(&svc->srv_lock);
- svc->srv_n_difficult_replies++;
+ atomic_inc(&svc->srv_n_difficult_replies);
if (netrc != 0) {
/* error sending: reply is off the net. Also we need +1
atomic_inc (&svc->srv_outstanding_replies);
}
- if (!rs->rs_on_net || /* some notifier */
- list_empty(&rs->rs_exp_list) || /* completed already */
- list_empty(&rs->rs_obd_list)) {
- list_add_tail (&rs->rs_list, &svc->srv_reply_queue);
- cfs_waitq_signal (&svc->srv_waitq);
+ spin_lock(&rs->rs_lock);
+ if (rs->rs_transno <= exp->exp_last_committed ||
+ (!rs->rs_on_net && !rs->rs_no_ack) ||
+ list_empty(&rs->rs_exp_list) || /* completed already */
+ list_empty(&rs->rs_obd_list)) {
+ CDEBUG(D_HA, "Schedule reply immediately\n");
+ ptlrpc_dispatch_difficult_reply(rs);
} else {
list_add (&rs->rs_list, &svc->srv_active_replies);
rs->rs_scheduled = 0; /* allow notifier to schedule */
}
-
+ spin_unlock(&rs->rs_lock);
spin_unlock(&svc->srv_lock);
+ EXIT;
}
int target_handle_ping(struct ptlrpc_request *req)
{
obd_ping(req->rq_export);
- return lustre_pack_reply(req, 1, NULL, NULL);
+ return req_capsule_server_pack(&req->rq_pill);
}
void target_committed_to_req(struct ptlrpc_request *req)
{
- struct obd_device *obd = req->rq_export->exp_obd;
+ struct obd_export *exp = req->rq_export;
- if (!obd->obd_no_transno && req->rq_repmsg != NULL)
+ if (!exp->exp_obd->obd_no_transno && req->rq_repmsg != NULL)
lustre_msg_set_last_committed(req->rq_repmsg,
- obd->obd_last_committed);
+ exp->exp_last_committed);
else
- DEBUG_REQ(D_IOCTL, req, "not sending last_committed update");
+ DEBUG_REQ(D_IOCTL, req, "not sending last_committed update (%d/"
+ "%d)", exp->exp_obd->obd_no_transno,
+ req->rq_repmsg == NULL);
- CDEBUG(D_INFO, "last_committed "LPU64", xid "LPU64"\n",
- obd->obd_last_committed, req->rq_xid);
+ CDEBUG(D_INFO, "last_committed "LPU64", transno "LPU64", xid "LPU64"\n",
+ exp->exp_last_committed, req->rq_transno, req->rq_xid);
}
-
EXPORT_SYMBOL(target_committed_to_req);
-#ifdef HAVE_QUOTA_SUPPORT
int target_handle_qc_callback(struct ptlrpc_request *req)
{
struct obd_quotactl *oqctl;
struct client_obd *cli = &req->rq_export->exp_obd->u.cli;
- oqctl = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*oqctl),
- lustre_swab_obd_quotactl);
+ oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
if (oqctl == NULL) {
CERROR("Can't unpack obd_quotactl\n");
RETURN(-EPROTO);
return 0;
}
+#ifdef HAVE_QUOTA_SUPPORT
int target_handle_dqacq_callback(struct ptlrpc_request *req)
{
#ifdef __KERNEL__
struct obd_device *obd = req->rq_export->exp_obd;
struct obd_device *master_obd;
+ struct obd_device_target *obt;
struct lustre_quota_ctxt *qctxt;
- struct qunit_data *qdata;
- void* rep;
- struct qunit_data_old *qdata_old;
+ struct qunit_data *qdata = NULL;
int rc = 0;
- int repsize[2] = { sizeof(struct ptlrpc_body),
- sizeof(struct qunit_data) };
ENTRY;
-
- rc = lustre_pack_reply(req, 2, repsize, NULL);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_DROP_QUOTA_REQ))
+ RETURN(rc);
+
+ rc = req_capsule_server_pack(&req->rq_pill);
if (rc) {
CERROR("packing reply failed!: rc = %d\n", rc);
RETURN(rc);
}
+
LASSERT(req->rq_export);
- /* fixed for bug10707 */
- if ((req->rq_export->exp_connect_flags & OBD_CONNECT_QUOTA64) &&
- !OBD_FAIL_CHECK(OBD_FAIL_QUOTA_QD_COUNT_32BIT)) {
- CDEBUG(D_QUOTA, "qd_count is 64bit!\n");
- rep = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
- sizeof(struct qunit_data));
- LASSERT(rep);
- qdata = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*qdata),
- lustre_swab_qdata);
- } else {
- CDEBUG(D_QUOTA, "qd_count is 32bit!\n");
- rep = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
- sizeof(struct qunit_data_old));
- LASSERT(rep);
- qdata_old = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*qdata_old),
- lustre_swab_qdata_old);
- qdata = lustre_quota_old_to_new(qdata_old);
+ qdata = quota_get_qdata(req, QUOTA_REQUEST, QUOTA_EXPORT);
+ if (IS_ERR(qdata)) {
+ rc = PTR_ERR(qdata);
+ CDEBUG(D_ERROR, "Can't unpack qunit_data(rc: %d)\n", rc);
+ req->rq_status = rc;
+ GOTO(out, rc);
}
- if (qdata == NULL) {
- CERROR("Can't unpack qunit_data\n");
- RETURN(-EPROTO);
+ /* we use the observer */
+ if (!obd->obd_observer || !obd->obd_observer->obd_observer) {
+ CERROR("Can't find the observer, it is recovering\n");
+ req->rq_status = -EAGAIN;
+ GOTO(out, rc);
}
- /* we use the observer */
- LASSERT(obd->obd_observer && obd->obd_observer->obd_observer);
master_obd = obd->obd_observer->obd_observer;
- qctxt = &master_obd->u.obt.obt_qctxt;
-
+ obt = &master_obd->u.obt;
+ qctxt = &obt->obt_qctxt;
+
+ if (!qctxt->lqc_setup || !qctxt->lqc_valid) {
+ /* quota_type has not been processed yet, return EAGAIN
+ * until we know whether or not quotas are supposed to
+ * be enabled */
+ CDEBUG(D_QUOTA, "quota_type not processed yet, return "
+ "-EAGAIN\n");
+ req->rq_status = -EAGAIN;
+ GOTO(out, rc);
+ }
+
+ down_read(&obt->obt_rwsem);
+ if (qctxt->lqc_lqs_hash == NULL) {
+ up_read(&obt->obt_rwsem);
+ /* quota_type has not been processed yet, return EAGAIN
+ * until we know whether or not quotas are supposed to
+ * be enabled */
+ CDEBUG(D_QUOTA, "quota_ctxt is not ready yet, return "
+ "-EAGAIN\n");
+ req->rq_status = -EAGAIN;
+ GOTO(out, rc);
+ }
+
LASSERT(qctxt->lqc_handler);
rc = qctxt->lqc_handler(master_obd, qdata,
lustre_msg_get_opc(req->rq_reqmsg));
+ up_read(&obt->obt_rwsem);
if (rc && rc != -EDQUOT)
- CDEBUG(rc == -EBUSY ? D_QUOTA : D_ERROR,
- "dqacq failed! (rc:%d)\n", rc);
-
- /* the qd_count might be changed in lqc_handler */
- if ((req->rq_export->exp_connect_flags & OBD_CONNECT_QUOTA64) &&
- !OBD_FAIL_CHECK(OBD_FAIL_QUOTA_QD_COUNT_32BIT)) {
- memcpy(rep,qdata,sizeof(*qdata));
- } else {
- qdata_old = lustre_quota_new_to_old(qdata);
- memcpy(rep,qdata_old,sizeof(*qdata_old));
- }
+ CDEBUG(rc == -EBUSY ? D_QUOTA : D_ERROR,
+ "dqacq/dqrel failed! (rc:%d)\n", rc);
req->rq_status = rc;
+
+ rc = quota_copy_qdata(req, qdata, QUOTA_REPLY, QUOTA_EXPORT);
+ if (rc < 0) {
+ CERROR("Can't pack qunit_data(rc: %d)\n", rc);
+ GOTO(out, rc);
+ }
+
+ /* Block the quota req. b=14840 */
+ OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_BLOCK_QUOTA_REQ, obd_timeout);
+ EXIT;
+
+out:
rc = ptlrpc_reply(req);
-
- RETURN(rc);
+ return rc;
#else
return 0;
#endif /* !__KERNEL__ */
[LCK_CW] LCK_COMPAT_CW,
[LCK_CR] LCK_COMPAT_CR,
[LCK_NL] LCK_COMPAT_NL,
- [LCK_GROUP] LCK_COMPAT_GROUP
+ [LCK_GROUP] LCK_COMPAT_GROUP,
+ [LCK_COS] LCK_COMPAT_COS,
};
+
+/**
+ * Rather arbitrary mapping from LDLM error codes to errno values. This should
+ * not escape to the user level.
+ */
+int ldlm_error2errno(ldlm_error_t error)
+{
+ int result;
+
+ switch (error) {
+ case ELDLM_OK:
+ result = 0;
+ break;
+ case ELDLM_LOCK_CHANGED:
+ result = -ESTALE;
+ break;
+ case ELDLM_LOCK_ABORTED:
+ result = -ENAVAIL;
+ break;
+ case ELDLM_LOCK_REPLACED:
+ result = -ESRCH;
+ break;
+ case ELDLM_NO_LOCK_DATA:
+ result = -ENOENT;
+ break;
+ case ELDLM_NAMESPACE_EXISTS:
+ result = -EEXIST;
+ break;
+ case ELDLM_BAD_NAMESPACE:
+ result = -EBADF;
+ break;
+ default:
+ if (((int)error) < 0) /* cast to signed type */
+ result = error; /* as ldlm_error_t can be unsigned */
+ else {
+ CERROR("Invalid DLM result code: %i\n", error);
+ result = -EPROTO;
+ }
+ }
+ return result;
+}
+EXPORT_SYMBOL(ldlm_error2errno);
+
+/**
+ * Dual to ldlm_error2errno(): maps errno values back to ldlm_error_t.
+ */
+ldlm_error_t ldlm_errno2error(int err_no)
+{
+ int error;
+
+ switch (err_no) {
+ case 0:
+ error = ELDLM_OK;
+ break;
+ case -ESTALE:
+ error = ELDLM_LOCK_CHANGED;
+ break;
+ case -ENAVAIL:
+ error = ELDLM_LOCK_ABORTED;
+ break;
+ case -ESRCH:
+ error = ELDLM_LOCK_REPLACED;
+ break;
+ case -ENOENT:
+ error = ELDLM_NO_LOCK_DATA;
+ break;
+ case -EEXIST:
+ error = ELDLM_NAMESPACE_EXISTS;
+ break;
+ case -EBADF:
+ error = ELDLM_BAD_NAMESPACE;
+ break;
+ default:
+ error = err_no;
+ }
+ return error;
+}
+EXPORT_SYMBOL(ldlm_errno2error);
+
git://git.whamcloud.com / fs / lustre-release.git / blobdiff