--- /dev/null
+Each file in this distribution should contain a header stating the
+copyright owner(s), and the licensing terms for that module. Some
+files are not eligible for copyright protection, and contain neither.
+
+There are many files which may be covered by a separate Evaluation
+License Agreement that you may have signed before downloading this
+software. If you did not sign such an agreement, or if the file does
+not mention that license, then you can redistribute and/or modify it
+under the terms of version 2 of the GNU General Public License.
+Each file is very clear about which license is applicable.
+
+In any 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.
+
+Reproduced below is the GNU General Public License version 2, and
+Linus's clarifying statement from the Linux kernel source code:
+
+----------------------------------------
+
+ NOTE! This copyright does *not* cover user programs that use kernel
+ services by normal system calls - this is merely considered normal use
+ of the kernel, and does *not* fall under the heading of "derived work".
+ Also note that the GPL below is copyrighted by the Free Software
+ Foundation, but the instance of code that it refers to (the Linux
+ kernel) is copyrighted by me and others who actually wrote it.
+
+ Linus Torvalds
+
+----------------------------------------
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
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+
+ Finally, any free program is threatened constantly by software
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+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+\f
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+\f
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
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+ years, to give any third party, for a charge no more than your
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+
+The source code for a work means the preferred form of the work for
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+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+\f
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
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+
+ 5. You are not required to accept this License, since you have not
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+prohibited by law if you do not accept this License. Therefore, by
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+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
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+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
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+
+If any portion of this section is held invalid or unenforceable under
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+
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+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+\f
+ 8. If the distribution and/or use of the Program is restricted in
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+
+ 9. The Free Software Foundation may publish revised and/or new versions
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+be similar in spirit to the present version, but may differ in detail to
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+
+Each version is given a distinguishing version number. If the Program
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+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+\f
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) 19yy <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ 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 for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) 19yy name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Implementation of the management/health monitoring client.
- *
- * Copyright (c) 2003 Cluster File Systems, Inc.
- * Author: Mike Shaver <shaver@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free 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.
- *
- * 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
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_MGMT
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-#include <linux/obd_support.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_net.h>
-#include <linux/lustre_mgmt.h>
-
-/*** Registration and service/thread management. ***/
-
-/* An entry representing one obd which has registered for management events. */
-struct mgmtcli_registrant {
- struct list_head chain;
- struct obd_device *notify_obd;
- struct obd_uuid *relevant_uuid;
-};
-
-static int mgmtcli_pinger_main(void *arg)
-{
- struct ptlrpc_svc_data *data = (struct ptlrpc_svc_data *)arg;
- struct ptlrpc_thread *thread = data->thread;
- unsigned long flags;
- struct l_wait_info lwi = { 0 };
- ENTRY;
-
- lock_kernel();
- /* vv ptlrpc_daemonize(); vv */
- exit_mm(current);
-
- current->session = 1;
- current->pgrp = 1;
- current->tty = NULL;
-
- exit_files(current);
- reparent_to_init();
- /* ^^ ptlrpc_daemonize(); ^^ */
-
- SIGNAL_MASK_LOCK(current, flags);
- sigfillset(¤t->blocked);
- RECALC_SIGPENDING;
- SIGNAL_MASK_UNLOCK(current, flags);
-
-#if defined(__arch_um__) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,20))
- sprintf(current->comm, "%s|%d", data->name,current->thread.extern_pid);
-#elif defined(__arch_um__) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
- sprintf(current->comm, "%s|%d", data->name,
- current->thread.mode.tt.extern_pid);
-#else
- strcpy(current->comm, data->name);
-#endif
- unlock_kernel();
-
- /* Record that the thread is running */
- thread->t_flags = SVC_RUNNING;
- wake_up(&thread->t_ctl_waitq);
-
- /* And now, loop forever, pinging as needed. */
- l_wait_event(thread->t_ctl_waitq, thread->t_flags & SVC_STOPPING, &lwi);
-
- thread->t_flags = SVC_STOPPED;
- wake_up(&thread->t_ctl_waitq);
-
- CDEBUG(D_NET, "pinger thread exiting");
- return 0;
-}
-
-static int mgmtcli_connect_to_svc(struct obd_device *obd)
-{
- int rc;
- struct mgmtcli_obd *mc = &obd->u.mgmtcli;
- struct ptlrpc_svc_data svc_data;
- struct ptlrpc_thread *thread;
- struct l_wait_info lwi = { 0 };
- struct lustre_handle conn = {0, };
- ENTRY;
-
- /* Connect to ourselves, and thusly to the mgmt service. */
- rc = client_connect_import(&conn, obd, &obd->obd_uuid);
- if (rc) {
- CERROR("failed to connect to mgmt svc: %d\n", rc);
- (void)client_obd_cleanup(obd, 0);
- RETURN(rc);
- }
- mc->mc_ping_exp = class_conn2export(&conn);
-
- LASSERT(mc->mc_ping_thread == NULL);
- OBD_ALLOC(thread, sizeof (*thread));
- if (thread == NULL)
- GOTO(out, rc = -ENOMEM);
- mc->mc_ping_thread = thread;
- init_waitqueue_head(&thread->t_ctl_waitq);
-
- svc_data.name = "mgmtcli";
- svc_data.thread = thread;
-
- rc = kernel_thread(mgmtcli_pinger_main, &svc_data, CLONE_VM | CLONE_FILES);
-out:
- if (rc < 0) {
- CERROR("can't start thread to ping mgmt svc %s: %d\n",
- mc->mc_import->imp_target_uuid.uuid, rc);
- OBD_FREE(mc->mc_ping_thread, sizeof (*mc->mc_ping_thread));
- (void)client_disconnect_import(mc->mc_ping_exp, 0);
- RETURN(rc);
- }
- l_wait_event(thread->t_ctl_waitq, thread->t_flags & SVC_RUNNING, &lwi);
-
- RETURN(0);
-}
-
-static int mgmtcli_disconnect_from_svc(struct obd_device *obd)
-{
- struct mgmtcli_obd *mc = &obd->u.mgmtcli;
- struct obd_import *imp = mc->mc_import;
- struct ptlrpc_thread *thread = mc->mc_ping_thread;
- struct l_wait_info lwi = { 0 };
- int rc;
-
- ENTRY;
- rc = client_disconnect_import(mc->mc_ping_exp, 0);
- if (rc) {
- CERROR("can't disconnect from %s: %d (%s)\n",
- imp->imp_target_uuid.uuid, rc,
- (thread ?
- "stopping pinger thread anyway" :
- "pinger thread already stopped"));
- }
-
- if (thread) {
- thread->t_flags = SVC_STOPPING;
- wake_up(&thread->t_ctl_waitq);
- l_wait_event(thread->t_ctl_waitq, thread->t_flags & SVC_STOPPED, &lwi);
-
- OBD_FREE(mc->mc_ping_thread, sizeof (*mc->mc_ping_thread));
- }
-
- RETURN(rc);
-}
-
-static int mgmtcli_register_for_events(struct obd_device *mgmt_obd,
- struct obd_device *notify_obd,
- struct obd_uuid *relevant_uuid)
-{
- int start_thread;
- struct mgmtcli_registrant *reg;
- struct mgmtcli_obd *mcobd = &mgmt_obd->u.mgmtcli;
-
- ENTRY;
- if (strcmp(mgmt_obd->obd_type->typ_name, LUSTRE_MGMTCLI_NAME))
- RETURN(-EINVAL);
-
- OBD_ALLOC(reg, sizeof(*reg));
- if (reg == NULL)
- RETURN(-ENOMEM);
-
- reg->notify_obd = notify_obd;
- reg->relevant_uuid = relevant_uuid; /* XXX hash */
-
- spin_lock(&mgmt_obd->obd_dev_lock);
- start_thread = list_empty(&mcobd->mc_registered);
- list_add(®->chain, &mcobd->mc_registered);
- spin_unlock(&mgmt_obd->obd_dev_lock);
-
- if (start_thread)
- RETURN(mgmtcli_connect_to_svc(mgmt_obd));
-
- RETURN(0);
-}
-
-static int mgmtcli_deregister_for_events(struct obd_device *mgmt_obd,
- struct obd_device *notify_obd)
-{
- int stop_thread, found = 0;
- struct mgmtcli_registrant *reg = NULL;
- struct list_head *tmp, *n;
- struct mgmtcli_obd *mc = &mgmt_obd->u.mgmtcli;
-
- ENTRY;
- if (strcmp(mgmt_obd->obd_type->typ_name, LUSTRE_MGMTCLI_NAME))
- RETURN(-EINVAL);
-
- spin_lock(&mgmt_obd->obd_dev_lock);
- list_for_each_safe(tmp, n, &mc->mc_registered) {
- reg = list_entry(tmp, struct mgmtcli_registrant, chain);
- if (reg->notify_obd == notify_obd) {
- list_del(®->chain);
- found = 1;
- OBD_FREE(reg, sizeof(*reg));
- break;
- }
- }
- spin_unlock(&mgmt_obd->obd_dev_lock);
-
- if (!found)
- RETURN(-ENOENT);
- RETURN(0);
-}
-
-/*** OBD scaffolding and module paraphernalia. ***/
-
-static int mgmtcli_setup(struct obd_device *obd, obd_count len, void *buf)
-{
- struct mgmtcli_obd *mc = &obd->u.mgmtcli;
- INIT_LIST_HEAD(&mc->mc_registered);
-
- /* Initialize our nested client_obd structure. */
- RETURN(client_obd_setup(obd, len, buf));
-}
-
-static int mgmtcli_cleanup(struct obd_device *obd, int flags)
-{
- struct mgmtcli_obd *mc = &obd->u.mgmtcli;
-
- if (!list_empty(&mc->mc_registered))
- RETURN(-EBUSY);
-
- if (mc->mc_ping_thread) {
- rc = mgmtcli_disconnect_from_svc(obd);
- if (rc)
- RETURN(rc);
- }
-
- RETURN(client_obd_cleanup(obd, flags);
-}
-
-static struct obd_ops mgmtcli_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_setup = mgmtcli_setup,
- .o_cleanup = client_obd_cleanup
-};
-
-static int __init mgmtcli_init(void)
-{
- inter_module_register("mgmtcli_register_for_events", THIS_MODULE,
- mgmtcli_register_for_events);
- inter_module_register("mgmtcli_deregister_for_events", THIS_MODULE,
- mgmtcli_deregister_for_events);
- return class_register_type(&mgmtcli_obd_ops, 0, LUSTRE_MGMTCLI_NAME);
-}
-
-static void __exit mgmtcli_exit(void)
-{
- class_unregister_type(LUSTRE_MGMTCLI_NAME);
- inter_module_unregister("mgmtcli_register_for_events");
- inter_module_unregister("mgmtcli_deregister_for_events");
-}
-
-#ifdef __KERNEL__
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre monitoring client v0.1");
-MODULE_LICENSE("GPL");
-
-module_init(mgmtcli_init);
-module_exit(mgmtcli_exit);
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Implementation of the management/health monitoring service.
- *
- * Copyright (c) 2003 Cluster File Systems, Inc.
- * Author: Mike Shaver <shaver@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free 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.
- *
- * 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
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_MGMT
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include <linux/obd_class.h>
-#include <linux/lustre_net.h>
-
-#define MGMT_NBUFS 128UL
-#define MGMT_BUFSIZE 8192
-#define MGMT_MAXREQSIZE 512
-#define MGMT_NUM_THREADS 4
-#define MGMT_DEVICE_NAME "mgmt"
-
-static int mgmt_initialized;
-static struct ptlrpc_service *mgmt_service;
-
-static int mgmt_ping(struct ptlrpc_request *req)
-{
- /* handle_incoming_request will have already updated the export's
- * last_request_time, so we don't need to do anything else.
- */
- return lustre_pack_msg(0, NULL, NULL, &req->rq_replen, &req->rq_repmsg);
-}
-
-static int mgmt_handler(struct ptlrpc_request *req)
-{
- int rc;
- ENTRY;
-
- switch (req->rq_reqmsg->opc) {
- case OBD_PING:
- DEBUG_REQ(D_RPCTRACE, req, "ping");
- rc = mgmt_ping(req);
- break;
- case MGMT_CONNECT:
- DEBUG_REQ(D_RPCTRACE, req, "connect");
- rc = target_handle_connect(req, NULL /* no recovery handler */);
- break;
- case MGMT_DISCONNECT:
- DEBUG_REQ(D_RPCTRACE, req, "disconnect");
- rc = target_handle_disconnect(req);
- break;
- default:
- DEBUG_REQ(D_RPCTRACE, req, "UNKNOWN OP");
- rc = -EINVAL;
- }
-
- if (rc)
- ptlrpc_error(req);
- else
- ptlrpc_reply(req);
-
- RETURN(0);
-}
-
-static int mgmt_setup(struct obd_device *obd, obd_count len, void *buf)
-{
- int i, rc;
- ENTRY;
-
- if (mgmt_initialized)
- RETURN(-EALREADY);
-
- mgmt_service =
- ptlrpc_init_svc(MGMT_NBUFS, MGMT_BUFSIZE, MGMT_MAXREQSIZE,
- MGMT_REQUEST_PORTAL, MGMT_REPLY_PORTAL, 30000,
- mgmt_handler, "mgmt", obd->obd_proc_entry, NULL);
- if (!mgmt_service) {
- CERROR("Failed to start mgmt service\n");
- RETURN(-ENOMEM);
- }
-
- rc = ptlrpc_start_n_threads(obd, mgmt_service, MGMT_NUM_THREADS,"mgmt");
- if (rc)
- GOTO(err, rc);
-
- mgmt_initialized = 1;
-
- RETURN(0);
-err:
- ptlrpc_unregister_service(mgmt_service);
- RETURN(rc):
-}
-
-static int mgmt_cleanup(struct obd_device *obd, int flags)
-{
- ENTRY;
-
- if (!mgmt_initialized)
- RETURN(-ENOENT);
-
- ptlrpc_unregister_service(mgmt_service);
-
- mgmt_initialized = 0;
- RETURN(0);
-}
-
-static struct obd_ops mgmt_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_setup = mgmt_setup,
- .o_cleanup = mgmt_cleanup,
- .o_connect = class_connect,
- .o_disconnect = class_disconnect
-};
-
-static int __init mgmt_init(void)
-{
- int rc = class_register_type(&mgmt_obd_ops, 0, MGMT_DEVICE_NAME);
-
- return rc;
-}
-
-static void __exit mgmt_exit(void)
-{
- class_unregister_type(MGMT_DEVICE_NAME);
-}
-
-#ifdef __KERNEL__
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre monitoring service v0.1");
-MODULE_LICENSE("GPL");
-
-module_init(mgmt_init);
-module_exit(mgmt_exit);
-#endif
git://git.whamcloud.com / fs / lustre-release.git / commitdiff