1496 lines
37 KiB
C
1496 lines
37 KiB
C
/*
|
|
* GPL HEADER START
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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).
|
|
*
|
|
* 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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*
|
|
* Copyright (c) 2011, 2015, Intel Corporation.
|
|
*/
|
|
/*
|
|
* This file is part of Lustre, http://www.lustre.org/
|
|
* Lustre is a trademark of Sun Microsystems, Inc.
|
|
*
|
|
* lustre/obdclass/obd_config.c
|
|
*
|
|
* Config API
|
|
*/
|
|
|
|
#define DEBUG_SUBSYSTEM S_CLASS
|
|
#include "../include/obd_class.h"
|
|
#include <linux/string.h>
|
|
#include "../include/lustre_log.h"
|
|
#include "../include/lprocfs_status.h"
|
|
#include "../include/lustre_param.h"
|
|
|
|
#include "llog_internal.h"
|
|
|
|
static struct cfs_hash_ops uuid_hash_ops;
|
|
|
|
/*********** string parsing utils *********/
|
|
|
|
/* returns 0 if we find this key in the buffer, else 1 */
|
|
int class_find_param(char *buf, char *key, char **valp)
|
|
{
|
|
char *ptr;
|
|
|
|
if (!buf)
|
|
return 1;
|
|
|
|
ptr = strstr(buf, key);
|
|
if (!ptr)
|
|
return 1;
|
|
|
|
if (valp)
|
|
*valp = ptr + strlen(key);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(class_find_param);
|
|
|
|
/* returns 0 if this is the first key in the buffer, else 1.
|
|
* valp points to first char after key.
|
|
*/
|
|
static int class_match_param(char *buf, const char *key, char **valp)
|
|
{
|
|
if (!buf)
|
|
return 1;
|
|
|
|
if (memcmp(buf, key, strlen(key)) != 0)
|
|
return 1;
|
|
|
|
if (valp)
|
|
*valp = buf + strlen(key);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_nid(char *buf, void *value, int quiet)
|
|
{
|
|
lnet_nid_t *nid = value;
|
|
|
|
*nid = libcfs_str2nid(buf);
|
|
if (*nid != LNET_NID_ANY)
|
|
return 0;
|
|
|
|
if (!quiet)
|
|
LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int parse_net(char *buf, void *value)
|
|
{
|
|
__u32 *net = value;
|
|
|
|
*net = libcfs_str2net(buf);
|
|
CDEBUG(D_INFO, "Net %s\n", libcfs_net2str(*net));
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
CLASS_PARSE_NID = 1,
|
|
CLASS_PARSE_NET,
|
|
};
|
|
|
|
/* 0 is good nid,
|
|
* 1 not found
|
|
* < 0 error
|
|
* endh is set to next separator
|
|
*/
|
|
static int class_parse_value(char *buf, int opc, void *value, char **endh,
|
|
int quiet)
|
|
{
|
|
char *endp;
|
|
char tmp;
|
|
int rc = 0;
|
|
|
|
if (!buf)
|
|
return 1;
|
|
while (*buf == ',' || *buf == ':')
|
|
buf++;
|
|
if (*buf == ' ' || *buf == '/' || *buf == '\0')
|
|
return 1;
|
|
|
|
/* nid separators or end of nids */
|
|
endp = strpbrk(buf, ",: /");
|
|
if (!endp)
|
|
endp = buf + strlen(buf);
|
|
|
|
tmp = *endp;
|
|
*endp = '\0';
|
|
switch (opc) {
|
|
default:
|
|
LBUG();
|
|
case CLASS_PARSE_NID:
|
|
rc = parse_nid(buf, value, quiet);
|
|
break;
|
|
case CLASS_PARSE_NET:
|
|
rc = parse_net(buf, value);
|
|
break;
|
|
}
|
|
*endp = tmp;
|
|
if (rc != 0)
|
|
return rc;
|
|
if (endh)
|
|
*endh = endp;
|
|
return 0;
|
|
}
|
|
|
|
int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh)
|
|
{
|
|
return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 0);
|
|
}
|
|
EXPORT_SYMBOL(class_parse_nid);
|
|
|
|
int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh)
|
|
{
|
|
return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 1);
|
|
}
|
|
EXPORT_SYMBOL(class_parse_nid_quiet);
|
|
|
|
/********************** class fns **********************/
|
|
|
|
/**
|
|
* Create a new obd device and set the type, name and uuid. If successful,
|
|
* the new device can be accessed by either name or uuid.
|
|
*/
|
|
static int class_attach(struct lustre_cfg *lcfg)
|
|
{
|
|
struct obd_device *obd = NULL;
|
|
char *typename, *name, *uuid;
|
|
int rc, len;
|
|
|
|
if (!LUSTRE_CFG_BUFLEN(lcfg, 1)) {
|
|
CERROR("No type passed!\n");
|
|
return -EINVAL;
|
|
}
|
|
typename = lustre_cfg_string(lcfg, 1);
|
|
|
|
if (!LUSTRE_CFG_BUFLEN(lcfg, 0)) {
|
|
CERROR("No name passed!\n");
|
|
return -EINVAL;
|
|
}
|
|
name = lustre_cfg_string(lcfg, 0);
|
|
|
|
if (!LUSTRE_CFG_BUFLEN(lcfg, 2)) {
|
|
CERROR("No UUID passed!\n");
|
|
return -EINVAL;
|
|
}
|
|
uuid = lustre_cfg_string(lcfg, 2);
|
|
|
|
CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n",
|
|
MKSTR(typename), MKSTR(name), MKSTR(uuid));
|
|
|
|
obd = class_newdev(typename, name);
|
|
if (IS_ERR(obd)) {
|
|
/* Already exists or out of obds */
|
|
rc = PTR_ERR(obd);
|
|
obd = NULL;
|
|
CERROR("Cannot create device %s of type %s : %d\n",
|
|
name, typename, rc);
|
|
goto out;
|
|
}
|
|
LASSERTF(obd, "Cannot get obd device %s of type %s\n",
|
|
name, typename);
|
|
LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
|
|
"obd %p obd_magic %08X != %08X\n",
|
|
obd, obd->obd_magic, OBD_DEVICE_MAGIC);
|
|
LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0,
|
|
"%p obd_name %s != %s\n", obd, obd->obd_name, name);
|
|
|
|
rwlock_init(&obd->obd_pool_lock);
|
|
obd->obd_pool_limit = 0;
|
|
obd->obd_pool_slv = 0;
|
|
|
|
INIT_LIST_HEAD(&obd->obd_exports);
|
|
INIT_LIST_HEAD(&obd->obd_unlinked_exports);
|
|
INIT_LIST_HEAD(&obd->obd_delayed_exports);
|
|
spin_lock_init(&obd->obd_nid_lock);
|
|
spin_lock_init(&obd->obd_dev_lock);
|
|
mutex_init(&obd->obd_dev_mutex);
|
|
spin_lock_init(&obd->obd_osfs_lock);
|
|
/* obd->obd_osfs_age must be set to a value in the distant
|
|
* past to guarantee a fresh statfs is fetched on mount.
|
|
*/
|
|
obd->obd_osfs_age = cfs_time_shift_64(-1000);
|
|
|
|
/* XXX belongs in setup not attach */
|
|
init_rwsem(&obd->obd_observer_link_sem);
|
|
/* recovery data */
|
|
init_waitqueue_head(&obd->obd_evict_inprogress_waitq);
|
|
|
|
llog_group_init(&obd->obd_olg, FID_SEQ_LLOG);
|
|
|
|
obd->obd_conn_inprogress = 0;
|
|
|
|
len = strlen(uuid);
|
|
if (len >= sizeof(obd->obd_uuid)) {
|
|
CERROR("uuid must be < %d bytes long\n",
|
|
(int)sizeof(obd->obd_uuid));
|
|
rc = -EINVAL;
|
|
goto out;
|
|
}
|
|
memcpy(obd->obd_uuid.uuid, uuid, len);
|
|
|
|
/* do the attach */
|
|
if (OBP(obd, attach)) {
|
|
rc = OBP(obd, attach)(obd, sizeof(*lcfg), lcfg);
|
|
if (rc) {
|
|
rc = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Detach drops this */
|
|
spin_lock(&obd->obd_dev_lock);
|
|
atomic_set(&obd->obd_refcount, 1);
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
lu_ref_init(&obd->obd_reference);
|
|
lu_ref_add(&obd->obd_reference, "attach", obd);
|
|
|
|
obd->obd_attached = 1;
|
|
CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n",
|
|
obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
|
|
return 0;
|
|
out:
|
|
if (obd)
|
|
class_release_dev(obd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/** Create hashes, self-export, and call type-specific setup.
|
|
* Setup is effectively the "start this obd" call.
|
|
*/
|
|
static int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
|
|
{
|
|
int err = 0;
|
|
struct obd_export *exp;
|
|
|
|
LASSERT(obd);
|
|
LASSERTF(obd == class_num2obd(obd->obd_minor),
|
|
"obd %p != obd_devs[%d] %p\n",
|
|
obd, obd->obd_minor, class_num2obd(obd->obd_minor));
|
|
LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
|
|
"obd %p obd_magic %08x != %08x\n",
|
|
obd, obd->obd_magic, OBD_DEVICE_MAGIC);
|
|
|
|
/* have we attached a type to this device? */
|
|
if (!obd->obd_attached) {
|
|
CERROR("Device %d not attached\n", obd->obd_minor);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (obd->obd_set_up) {
|
|
CERROR("Device %d already setup (type %s)\n",
|
|
obd->obd_minor, obd->obd_type->typ_name);
|
|
return -EEXIST;
|
|
}
|
|
|
|
/* is someone else setting us up right now? (attach inits spinlock) */
|
|
spin_lock(&obd->obd_dev_lock);
|
|
if (obd->obd_starting) {
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
CERROR("Device %d setup in progress (type %s)\n",
|
|
obd->obd_minor, obd->obd_type->typ_name);
|
|
return -EEXIST;
|
|
}
|
|
/* just leave this on forever. I can't use obd_set_up here because
|
|
* other fns check that status, and we're not actually set up yet.
|
|
*/
|
|
obd->obd_starting = 1;
|
|
obd->obd_uuid_hash = NULL;
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
|
|
/* create an uuid-export lustre hash */
|
|
obd->obd_uuid_hash = cfs_hash_create("UUID_HASH",
|
|
HASH_UUID_CUR_BITS,
|
|
HASH_UUID_MAX_BITS,
|
|
HASH_UUID_BKT_BITS, 0,
|
|
CFS_HASH_MIN_THETA,
|
|
CFS_HASH_MAX_THETA,
|
|
&uuid_hash_ops, CFS_HASH_DEFAULT);
|
|
if (!obd->obd_uuid_hash) {
|
|
err = -ENOMEM;
|
|
goto err_hash;
|
|
}
|
|
|
|
exp = class_new_export(obd, &obd->obd_uuid);
|
|
if (IS_ERR(exp)) {
|
|
err = PTR_ERR(exp);
|
|
goto err_hash;
|
|
}
|
|
|
|
obd->obd_self_export = exp;
|
|
class_export_put(exp);
|
|
|
|
err = obd_setup(obd, lcfg);
|
|
if (err)
|
|
goto err_exp;
|
|
|
|
obd->obd_set_up = 1;
|
|
|
|
spin_lock(&obd->obd_dev_lock);
|
|
/* cleanup drops this */
|
|
class_incref(obd, "setup", obd);
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
|
|
CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n",
|
|
obd->obd_name, obd->obd_uuid.uuid);
|
|
|
|
return 0;
|
|
err_exp:
|
|
if (obd->obd_self_export) {
|
|
class_unlink_export(obd->obd_self_export);
|
|
obd->obd_self_export = NULL;
|
|
}
|
|
err_hash:
|
|
if (obd->obd_uuid_hash) {
|
|
cfs_hash_putref(obd->obd_uuid_hash);
|
|
obd->obd_uuid_hash = NULL;
|
|
}
|
|
obd->obd_starting = 0;
|
|
CERROR("setup %s failed (%d)\n", obd->obd_name, err);
|
|
return err;
|
|
}
|
|
|
|
/** We have finished using this obd and are ready to destroy it.
|
|
* There can be no more references to this obd.
|
|
*/
|
|
static int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
|
|
{
|
|
if (obd->obd_set_up) {
|
|
CERROR("OBD device %d still set up\n", obd->obd_minor);
|
|
return -EBUSY;
|
|
}
|
|
|
|
spin_lock(&obd->obd_dev_lock);
|
|
if (!obd->obd_attached) {
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
CERROR("OBD device %d not attached\n", obd->obd_minor);
|
|
return -ENODEV;
|
|
}
|
|
obd->obd_attached = 0;
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
|
|
CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
|
|
obd->obd_name, obd->obd_uuid.uuid);
|
|
|
|
class_decref(obd, "attach", obd);
|
|
return 0;
|
|
}
|
|
|
|
/** Start shutting down the obd. There may be in-progress ops when
|
|
* this is called. We tell them to start shutting down with a call
|
|
* to class_disconnect_exports().
|
|
*/
|
|
static int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
|
|
{
|
|
int err = 0;
|
|
char *flag;
|
|
|
|
OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
|
|
|
|
if (!obd->obd_set_up) {
|
|
CERROR("Device %d not setup\n", obd->obd_minor);
|
|
return -ENODEV;
|
|
}
|
|
|
|
spin_lock(&obd->obd_dev_lock);
|
|
if (obd->obd_stopping) {
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
CERROR("OBD %d already stopping\n", obd->obd_minor);
|
|
return -ENODEV;
|
|
}
|
|
/* Leave this on forever */
|
|
obd->obd_stopping = 1;
|
|
|
|
/* wait for already-arrived-connections to finish. */
|
|
while (obd->obd_conn_inprogress > 0) {
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
|
|
cond_resched();
|
|
|
|
spin_lock(&obd->obd_dev_lock);
|
|
}
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
|
|
if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) {
|
|
for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++)
|
|
switch (*flag) {
|
|
case 'F':
|
|
obd->obd_force = 1;
|
|
break;
|
|
case 'A':
|
|
LCONSOLE_WARN("Failing over %s\n",
|
|
obd->obd_name);
|
|
obd->obd_fail = 1;
|
|
obd->obd_no_transno = 1;
|
|
obd->obd_no_recov = 1;
|
|
if (OBP(obd, iocontrol)) {
|
|
obd_iocontrol(OBD_IOC_SYNC,
|
|
obd->obd_self_export,
|
|
0, NULL, NULL);
|
|
}
|
|
break;
|
|
default:
|
|
CERROR("Unrecognised flag '%c'\n", *flag);
|
|
}
|
|
}
|
|
|
|
LASSERT(obd->obd_self_export);
|
|
|
|
/* Precleanup, we must make sure all exports get destroyed. */
|
|
err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS);
|
|
if (err)
|
|
CERROR("Precleanup %s returned %d\n",
|
|
obd->obd_name, err);
|
|
|
|
/* destroy an uuid-export hash body */
|
|
if (obd->obd_uuid_hash) {
|
|
cfs_hash_putref(obd->obd_uuid_hash);
|
|
obd->obd_uuid_hash = NULL;
|
|
}
|
|
|
|
class_decref(obd, "setup", obd);
|
|
obd->obd_set_up = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct obd_device *class_incref(struct obd_device *obd,
|
|
const char *scope, const void *source)
|
|
{
|
|
lu_ref_add_atomic(&obd->obd_reference, scope, source);
|
|
atomic_inc(&obd->obd_refcount);
|
|
CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd,
|
|
atomic_read(&obd->obd_refcount));
|
|
|
|
return obd;
|
|
}
|
|
EXPORT_SYMBOL(class_incref);
|
|
|
|
void class_decref(struct obd_device *obd, const char *scope, const void *source)
|
|
{
|
|
int err;
|
|
int refs;
|
|
|
|
spin_lock(&obd->obd_dev_lock);
|
|
atomic_dec(&obd->obd_refcount);
|
|
refs = atomic_read(&obd->obd_refcount);
|
|
spin_unlock(&obd->obd_dev_lock);
|
|
lu_ref_del(&obd->obd_reference, scope, source);
|
|
|
|
CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs);
|
|
|
|
if ((refs == 1) && obd->obd_stopping) {
|
|
/* All exports have been destroyed; there should
|
|
* be no more in-progress ops by this point.
|
|
*/
|
|
|
|
spin_lock(&obd->obd_self_export->exp_lock);
|
|
obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd);
|
|
spin_unlock(&obd->obd_self_export->exp_lock);
|
|
|
|
/* note that we'll recurse into class_decref again */
|
|
class_unlink_export(obd->obd_self_export);
|
|
return;
|
|
}
|
|
|
|
if (refs == 0) {
|
|
CDEBUG(D_CONFIG, "finishing cleanup of obd %s (%s)\n",
|
|
obd->obd_name, obd->obd_uuid.uuid);
|
|
LASSERT(!obd->obd_attached);
|
|
if (obd->obd_stopping) {
|
|
/* If we're not stopping, we were never set up */
|
|
err = obd_cleanup(obd);
|
|
if (err)
|
|
CERROR("Cleanup %s returned %d\n",
|
|
obd->obd_name, err);
|
|
}
|
|
if (OBP(obd, detach)) {
|
|
err = OBP(obd, detach)(obd);
|
|
if (err)
|
|
CERROR("Detach returned %d\n", err);
|
|
}
|
|
class_release_dev(obd);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(class_decref);
|
|
|
|
/** Add a failover nid location.
|
|
* Client obd types contact server obd types using this nid list.
|
|
*/
|
|
static int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
|
|
{
|
|
struct obd_import *imp;
|
|
struct obd_uuid uuid;
|
|
int rc;
|
|
|
|
if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
|
|
LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
|
|
CERROR("invalid conn_uuid\n");
|
|
return -EINVAL;
|
|
}
|
|
if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
|
|
strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
|
|
strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) &&
|
|
strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) &&
|
|
strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
|
|
CERROR("can't add connection on non-client dev\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
imp = obd->u.cli.cl_import;
|
|
if (!imp) {
|
|
CERROR("try to add conn on immature client dev\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
|
|
rc = obd_add_conn(imp, &uuid, lcfg->lcfg_num);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/** Remove a failover nid location.
|
|
*/
|
|
static int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
|
|
{
|
|
struct obd_import *imp;
|
|
struct obd_uuid uuid;
|
|
int rc;
|
|
|
|
if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
|
|
LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
|
|
CERROR("invalid conn_uuid\n");
|
|
return -EINVAL;
|
|
}
|
|
if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
|
|
strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
|
|
CERROR("can't del connection on non-client dev\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
imp = obd->u.cli.cl_import;
|
|
if (!imp) {
|
|
CERROR("try to del conn on immature client dev\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
|
|
rc = obd_del_conn(imp, &uuid);
|
|
|
|
return rc;
|
|
}
|
|
|
|
LIST_HEAD(lustre_profile_list);
|
|
|
|
struct lustre_profile *class_get_profile(const char *prof)
|
|
{
|
|
struct lustre_profile *lprof;
|
|
|
|
list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
|
|
if (!strcmp(lprof->lp_profile, prof)) {
|
|
return lprof;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(class_get_profile);
|
|
|
|
/** Create a named "profile".
|
|
* This defines the mdc and osc names to use for a client.
|
|
* This also is used to define the lov to be used by a mdt.
|
|
*/
|
|
static int class_add_profile(int proflen, char *prof, int osclen, char *osc,
|
|
int mdclen, char *mdc)
|
|
{
|
|
struct lustre_profile *lprof;
|
|
int err = 0;
|
|
|
|
CDEBUG(D_CONFIG, "Add profile %s\n", prof);
|
|
|
|
lprof = kzalloc(sizeof(*lprof), GFP_NOFS);
|
|
if (!lprof)
|
|
return -ENOMEM;
|
|
INIT_LIST_HEAD(&lprof->lp_list);
|
|
|
|
LASSERT(proflen == (strlen(prof) + 1));
|
|
lprof->lp_profile = kmemdup(prof, proflen, GFP_NOFS);
|
|
if (!lprof->lp_profile) {
|
|
err = -ENOMEM;
|
|
goto free_lprof;
|
|
}
|
|
|
|
LASSERT(osclen == (strlen(osc) + 1));
|
|
lprof->lp_dt = kmemdup(osc, osclen, GFP_NOFS);
|
|
if (!lprof->lp_dt) {
|
|
err = -ENOMEM;
|
|
goto free_lp_profile;
|
|
}
|
|
|
|
if (mdclen > 0) {
|
|
LASSERT(mdclen == (strlen(mdc) + 1));
|
|
lprof->lp_md = kmemdup(mdc, mdclen, GFP_NOFS);
|
|
if (!lprof->lp_md) {
|
|
err = -ENOMEM;
|
|
goto free_lp_dt;
|
|
}
|
|
}
|
|
|
|
list_add(&lprof->lp_list, &lustre_profile_list);
|
|
return err;
|
|
|
|
free_lp_dt:
|
|
kfree(lprof->lp_dt);
|
|
free_lp_profile:
|
|
kfree(lprof->lp_profile);
|
|
free_lprof:
|
|
kfree(lprof);
|
|
return err;
|
|
}
|
|
|
|
void class_del_profile(const char *prof)
|
|
{
|
|
struct lustre_profile *lprof;
|
|
|
|
CDEBUG(D_CONFIG, "Del profile %s\n", prof);
|
|
|
|
lprof = class_get_profile(prof);
|
|
if (lprof) {
|
|
list_del(&lprof->lp_list);
|
|
kfree(lprof->lp_profile);
|
|
kfree(lprof->lp_dt);
|
|
kfree(lprof->lp_md);
|
|
kfree(lprof);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(class_del_profile);
|
|
|
|
/* COMPAT_146 */
|
|
void class_del_profiles(void)
|
|
{
|
|
struct lustre_profile *lprof, *n;
|
|
|
|
list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
|
|
list_del(&lprof->lp_list);
|
|
kfree(lprof->lp_profile);
|
|
kfree(lprof->lp_dt);
|
|
kfree(lprof->lp_md);
|
|
kfree(lprof);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(class_del_profiles);
|
|
|
|
static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg)
|
|
{
|
|
if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0)
|
|
at_min = val;
|
|
else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0)
|
|
at_max = val;
|
|
else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0)
|
|
at_extra = val;
|
|
else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0)
|
|
at_early_margin = val;
|
|
else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0)
|
|
at_history = val;
|
|
else if (class_match_param(ptr, PARAM_JOBID_VAR, NULL) == 0)
|
|
strlcpy(obd_jobid_var, lustre_cfg_string(lcfg, 2),
|
|
JOBSTATS_JOBID_VAR_MAX_LEN + 1);
|
|
else
|
|
return -EINVAL;
|
|
|
|
CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val);
|
|
return 0;
|
|
}
|
|
|
|
/* We can't call ll_process_config or lquota_process_config directly because
|
|
* it lives in a module that must be loaded after this one.
|
|
*/
|
|
static int (*client_process_config)(struct lustre_cfg *lcfg);
|
|
static int (*quota_process_config)(struct lustre_cfg *lcfg);
|
|
|
|
void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg))
|
|
{
|
|
client_process_config = cpc;
|
|
}
|
|
EXPORT_SYMBOL(lustre_register_client_process_config);
|
|
|
|
static int process_param2_config(struct lustre_cfg *lcfg)
|
|
{
|
|
char *param = lustre_cfg_string(lcfg, 1);
|
|
char *upcall = lustre_cfg_string(lcfg, 2);
|
|
char *argv[] = {
|
|
[0] = "/usr/sbin/lctl",
|
|
[1] = "set_param",
|
|
[2] = param,
|
|
[3] = NULL
|
|
};
|
|
ktime_t start;
|
|
ktime_t end;
|
|
int rc;
|
|
|
|
/* Add upcall processing here. Now only lctl is supported */
|
|
if (strcmp(upcall, LCTL_UPCALL) != 0) {
|
|
CERROR("Unsupported upcall %s\n", upcall);
|
|
return -EINVAL;
|
|
}
|
|
|
|
start = ktime_get();
|
|
rc = call_usermodehelper(argv[0], argv, NULL, 1);
|
|
end = ktime_get();
|
|
|
|
if (rc < 0) {
|
|
CERROR(
|
|
"lctl: error invoking upcall %s %s %s: rc = %d; time %ldus\n",
|
|
argv[0], argv[1], argv[2], rc,
|
|
(long)ktime_us_delta(end, start));
|
|
} else {
|
|
CDEBUG(D_HA, "lctl: invoked upcall %s %s %s, time %ldus\n",
|
|
argv[0], argv[1], argv[2],
|
|
(long)ktime_us_delta(end, start));
|
|
rc = 0;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/** Process configuration commands given in lustre_cfg form.
|
|
* These may come from direct calls (e.g. class_manual_cleanup)
|
|
* or processing the config llog, or ioctl from lctl.
|
|
*/
|
|
int class_process_config(struct lustre_cfg *lcfg)
|
|
{
|
|
struct obd_device *obd;
|
|
int err;
|
|
|
|
LASSERT(lcfg && !IS_ERR(lcfg));
|
|
CDEBUG(D_IOCTL, "processing cmd: %x\n", lcfg->lcfg_command);
|
|
|
|
/* Commands that don't need a device */
|
|
switch (lcfg->lcfg_command) {
|
|
case LCFG_ATTACH: {
|
|
err = class_attach(lcfg);
|
|
goto out;
|
|
}
|
|
case LCFG_ADD_UUID: {
|
|
CDEBUG(D_IOCTL, "adding mapping from uuid %s to nid %#llx (%s)\n",
|
|
lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid,
|
|
libcfs_nid2str(lcfg->lcfg_nid));
|
|
|
|
err = class_add_uuid(lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid);
|
|
goto out;
|
|
}
|
|
case LCFG_DEL_UUID: {
|
|
CDEBUG(D_IOCTL, "removing mappings for uuid %s\n",
|
|
(lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) == 0)
|
|
? "<all uuids>" : lustre_cfg_string(lcfg, 1));
|
|
|
|
err = class_del_uuid(lustre_cfg_string(lcfg, 1));
|
|
goto out;
|
|
}
|
|
case LCFG_MOUNTOPT: {
|
|
CDEBUG(D_IOCTL, "mountopt: profile %s osc %s mdc %s\n",
|
|
lustre_cfg_string(lcfg, 1),
|
|
lustre_cfg_string(lcfg, 2),
|
|
lustre_cfg_string(lcfg, 3));
|
|
/* set these mount options somewhere, so ll_fill_super
|
|
* can find them.
|
|
*/
|
|
err = class_add_profile(LUSTRE_CFG_BUFLEN(lcfg, 1),
|
|
lustre_cfg_string(lcfg, 1),
|
|
LUSTRE_CFG_BUFLEN(lcfg, 2),
|
|
lustre_cfg_string(lcfg, 2),
|
|
LUSTRE_CFG_BUFLEN(lcfg, 3),
|
|
lustre_cfg_string(lcfg, 3));
|
|
goto out;
|
|
}
|
|
case LCFG_DEL_MOUNTOPT: {
|
|
CDEBUG(D_IOCTL, "mountopt: profile %s\n",
|
|
lustre_cfg_string(lcfg, 1));
|
|
class_del_profile(lustre_cfg_string(lcfg, 1));
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_SET_TIMEOUT: {
|
|
CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n",
|
|
obd_timeout, lcfg->lcfg_num);
|
|
obd_timeout = max(lcfg->lcfg_num, 1U);
|
|
obd_timeout_set = 1;
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_SET_LDLM_TIMEOUT: {
|
|
/* ldlm_timeout is not used on the client */
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_SET_UPCALL: {
|
|
LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
|
|
/* COMPAT_146 Don't fail on old configs */
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_MARKER: {
|
|
struct cfg_marker *marker;
|
|
|
|
marker = lustre_cfg_buf(lcfg, 1);
|
|
CDEBUG(D_IOCTL, "marker %d (%#x) %.16s %s\n", marker->cm_step,
|
|
marker->cm_flags, marker->cm_tgtname, marker->cm_comment);
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_PARAM: {
|
|
char *tmp;
|
|
/* llite has no obd */
|
|
if ((class_match_param(lustre_cfg_string(lcfg, 1),
|
|
PARAM_LLITE, NULL) == 0) &&
|
|
client_process_config) {
|
|
err = (*client_process_config)(lcfg);
|
|
goto out;
|
|
} else if ((class_match_param(lustre_cfg_string(lcfg, 1),
|
|
PARAM_SYS, &tmp) == 0)) {
|
|
/* Global param settings */
|
|
err = class_set_global(tmp, lcfg->lcfg_num, lcfg);
|
|
/*
|
|
* Client or server should not fail to mount if
|
|
* it hits an unknown configuration parameter.
|
|
*/
|
|
if (err != 0)
|
|
CWARN("Ignoring unknown param %s\n", tmp);
|
|
|
|
err = 0;
|
|
goto out;
|
|
} else if ((class_match_param(lustre_cfg_string(lcfg, 1),
|
|
PARAM_QUOTA, &tmp) == 0) &&
|
|
quota_process_config) {
|
|
err = (*quota_process_config)(lcfg);
|
|
goto out;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case LCFG_SET_PARAM: {
|
|
err = process_param2_config(lcfg);
|
|
goto out;
|
|
}
|
|
}
|
|
/* Commands that require a device */
|
|
obd = class_name2obd(lustre_cfg_string(lcfg, 0));
|
|
if (!obd) {
|
|
if (!LUSTRE_CFG_BUFLEN(lcfg, 0))
|
|
CERROR("this lcfg command requires a device name\n");
|
|
else
|
|
CERROR("no device for: %s\n",
|
|
lustre_cfg_string(lcfg, 0));
|
|
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
switch (lcfg->lcfg_command) {
|
|
case LCFG_SETUP: {
|
|
err = class_setup(obd, lcfg);
|
|
goto out;
|
|
}
|
|
case LCFG_DETACH: {
|
|
err = class_detach(obd, lcfg);
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_CLEANUP: {
|
|
err = class_cleanup(obd, lcfg);
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_ADD_CONN: {
|
|
err = class_add_conn(obd, lcfg);
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_DEL_CONN: {
|
|
err = class_del_conn(obd, lcfg);
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_POOL_NEW: {
|
|
err = obd_pool_new(obd, lustre_cfg_string(lcfg, 2));
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_POOL_ADD: {
|
|
err = obd_pool_add(obd, lustre_cfg_string(lcfg, 2),
|
|
lustre_cfg_string(lcfg, 3));
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_POOL_REM: {
|
|
err = obd_pool_rem(obd, lustre_cfg_string(lcfg, 2),
|
|
lustre_cfg_string(lcfg, 3));
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
case LCFG_POOL_DEL: {
|
|
err = obd_pool_del(obd, lustre_cfg_string(lcfg, 2));
|
|
err = 0;
|
|
goto out;
|
|
}
|
|
default: {
|
|
err = obd_process_config(obd, sizeof(*lcfg), lcfg);
|
|
goto out;
|
|
|
|
}
|
|
}
|
|
out:
|
|
if ((err < 0) && !(lcfg->lcfg_command & LCFG_REQUIRED)) {
|
|
CWARN("Ignoring error %d on optional command %#x\n", err,
|
|
lcfg->lcfg_command);
|
|
err = 0;
|
|
}
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(class_process_config);
|
|
|
|
int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
|
|
struct lustre_cfg *lcfg, void *data)
|
|
{
|
|
struct lprocfs_vars *var;
|
|
struct file fakefile;
|
|
struct seq_file fake_seqfile;
|
|
char *key, *sval;
|
|
int i, keylen, vallen;
|
|
int matched = 0, j = 0;
|
|
int rc = 0;
|
|
int skip = 0;
|
|
|
|
if (lcfg->lcfg_command != LCFG_PARAM) {
|
|
CERROR("Unknown command: %d\n", lcfg->lcfg_command);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* fake a seq file so that var->fops->write can work... */
|
|
fakefile.private_data = &fake_seqfile;
|
|
fake_seqfile.private = data;
|
|
/* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
|
|
* or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
|
|
* or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36
|
|
*/
|
|
for (i = 1; i < lcfg->lcfg_bufcount; i++) {
|
|
key = lustre_cfg_buf(lcfg, i);
|
|
/* Strip off prefix */
|
|
class_match_param(key, prefix, &key);
|
|
sval = strchr(key, '=');
|
|
if (!sval || (*(sval + 1) == 0)) {
|
|
CERROR("Can't parse param %s (missing '=')\n", key);
|
|
/* rc = -EINVAL; continue parsing other params */
|
|
continue;
|
|
}
|
|
keylen = sval - key;
|
|
sval++;
|
|
vallen = strlen(sval);
|
|
matched = 0;
|
|
j = 0;
|
|
/* Search proc entries */
|
|
while (lvars[j].name) {
|
|
var = &lvars[j];
|
|
if (!class_match_param(key, var->name, NULL)
|
|
&& keylen == strlen(var->name)) {
|
|
matched++;
|
|
rc = -EROFS;
|
|
if (var->fops && var->fops->write) {
|
|
mm_segment_t oldfs;
|
|
|
|
oldfs = get_fs();
|
|
set_fs(KERNEL_DS);
|
|
rc = (var->fops->write)(&fakefile, sval,
|
|
vallen, NULL);
|
|
set_fs(oldfs);
|
|
}
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
if (!matched) {
|
|
/* If the prefix doesn't match, return error so we
|
|
* can pass it down the stack
|
|
*/
|
|
if (strnchr(key, keylen, '.'))
|
|
return -ENOSYS;
|
|
CERROR("%s: unknown param %s\n",
|
|
(char *)lustre_cfg_string(lcfg, 0), key);
|
|
/* rc = -EINVAL; continue parsing other params */
|
|
skip++;
|
|
} else if (rc < 0) {
|
|
CERROR("writing proc entry %s err %d\n",
|
|
var->name, rc);
|
|
rc = 0;
|
|
} else {
|
|
CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n",
|
|
lustre_cfg_string(lcfg, 0),
|
|
(int)strlen(prefix) - 1, prefix,
|
|
(int)(sval - key - 1), key, sval);
|
|
}
|
|
}
|
|
|
|
if (rc > 0)
|
|
rc = 0;
|
|
if (!rc && skip)
|
|
rc = skip;
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL(class_process_proc_param);
|
|
|
|
extern int lustre_check_exclusion(struct super_block *sb, char *svname);
|
|
|
|
/** Parse a configuration llog, doing various manipulations on them
|
|
* for various reasons, (modifications for compatibility, skip obsolete
|
|
* records, change uuids, etc), then class_process_config() resulting
|
|
* net records.
|
|
*/
|
|
int class_config_llog_handler(const struct lu_env *env,
|
|
struct llog_handle *handle,
|
|
struct llog_rec_hdr *rec, void *data)
|
|
{
|
|
struct config_llog_instance *clli = data;
|
|
int cfg_len = rec->lrh_len;
|
|
char *cfg_buf = (char *) (rec + 1);
|
|
int rc = 0;
|
|
|
|
switch (rec->lrh_type) {
|
|
case OBD_CFG_REC: {
|
|
struct lustre_cfg *lcfg, *lcfg_new;
|
|
struct lustre_cfg_bufs bufs;
|
|
char *inst_name = NULL;
|
|
int inst_len = 0;
|
|
int inst = 0, swab = 0;
|
|
|
|
lcfg = (struct lustre_cfg *)cfg_buf;
|
|
if (lcfg->lcfg_version == __swab32(LUSTRE_CFG_VERSION)) {
|
|
lustre_swab_lustre_cfg(lcfg);
|
|
swab = 1;
|
|
}
|
|
|
|
rc = lustre_cfg_sanity_check(cfg_buf, cfg_len);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Figure out config state info */
|
|
if (lcfg->lcfg_command == LCFG_MARKER) {
|
|
struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
|
|
|
|
lustre_swab_cfg_marker(marker, swab,
|
|
LUSTRE_CFG_BUFLEN(lcfg, 1));
|
|
CDEBUG(D_CONFIG, "Marker, inst_flg=%#x mark_flg=%#x\n",
|
|
clli->cfg_flags, marker->cm_flags);
|
|
if (marker->cm_flags & CM_START) {
|
|
/* all previous flags off */
|
|
clli->cfg_flags = CFG_F_MARKER;
|
|
if (marker->cm_flags & CM_SKIP) {
|
|
clli->cfg_flags |= CFG_F_SKIP;
|
|
CDEBUG(D_CONFIG, "SKIP #%d\n",
|
|
marker->cm_step);
|
|
} else if ((marker->cm_flags & CM_EXCLUDE) ||
|
|
(clli->cfg_sb &&
|
|
lustre_check_exclusion(clli->cfg_sb,
|
|
marker->cm_tgtname))) {
|
|
clli->cfg_flags |= CFG_F_EXCLUDE;
|
|
CDEBUG(D_CONFIG, "EXCLUDE %d\n",
|
|
marker->cm_step);
|
|
}
|
|
} else if (marker->cm_flags & CM_END) {
|
|
clli->cfg_flags = 0;
|
|
}
|
|
}
|
|
/* A config command without a start marker before it is
|
|
* illegal (post 146)
|
|
*/
|
|
if (!(clli->cfg_flags & CFG_F_COMPAT146) &&
|
|
!(clli->cfg_flags & CFG_F_MARKER) &&
|
|
(lcfg->lcfg_command != LCFG_MARKER)) {
|
|
CWARN("Config not inside markers, ignoring! (inst: %p, uuid: %s, flags: %#x)\n",
|
|
clli->cfg_instance,
|
|
clli->cfg_uuid.uuid, clli->cfg_flags);
|
|
clli->cfg_flags |= CFG_F_SKIP;
|
|
}
|
|
if (clli->cfg_flags & CFG_F_SKIP) {
|
|
CDEBUG(D_CONFIG, "skipping %#x\n",
|
|
clli->cfg_flags);
|
|
rc = 0;
|
|
/* No processing! */
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* For interoperability between 1.8 and 2.0,
|
|
* rename "mds" obd device type to "mdt".
|
|
*/
|
|
{
|
|
char *typename = lustre_cfg_string(lcfg, 1);
|
|
char *index = lustre_cfg_string(lcfg, 2);
|
|
|
|
if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
|
|
strcmp(typename, "mds") == 0)) {
|
|
CWARN("For 1.8 interoperability, rename obd type from mds to mdt\n");
|
|
typename[2] = 't';
|
|
}
|
|
if ((lcfg->lcfg_command == LCFG_SETUP && index &&
|
|
strcmp(index, "type") == 0)) {
|
|
CDEBUG(D_INFO, "For 1.8 interoperability, set this index to '0'\n");
|
|
index[0] = '0';
|
|
index[1] = 0;
|
|
}
|
|
}
|
|
|
|
if (clli->cfg_flags & CFG_F_EXCLUDE) {
|
|
CDEBUG(D_CONFIG, "cmd: %x marked EXCLUDED\n",
|
|
lcfg->lcfg_command);
|
|
if (lcfg->lcfg_command == LCFG_LOV_ADD_OBD)
|
|
/* Add inactive instead */
|
|
lcfg->lcfg_command = LCFG_LOV_ADD_INA;
|
|
}
|
|
|
|
lustre_cfg_bufs_init(&bufs, lcfg);
|
|
|
|
if (clli && clli->cfg_instance &&
|
|
LUSTRE_CFG_BUFLEN(lcfg, 0) > 0) {
|
|
inst = 1;
|
|
inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) +
|
|
sizeof(clli->cfg_instance) * 2 + 4;
|
|
inst_name = kasprintf(GFP_NOFS, "%s-%p",
|
|
lustre_cfg_string(lcfg, 0),
|
|
clli->cfg_instance);
|
|
if (!inst_name) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
lustre_cfg_bufs_set_string(&bufs, 0, inst_name);
|
|
CDEBUG(D_CONFIG, "cmd %x, instance name: %s\n",
|
|
lcfg->lcfg_command, inst_name);
|
|
}
|
|
|
|
/* we override the llog's uuid for clients, to insure they
|
|
* are unique
|
|
*/
|
|
if (clli && clli->cfg_instance &&
|
|
lcfg->lcfg_command == LCFG_ATTACH) {
|
|
lustre_cfg_bufs_set_string(&bufs, 2,
|
|
clli->cfg_uuid.uuid);
|
|
}
|
|
/*
|
|
* sptlrpc config record, we expect 2 data segments:
|
|
* [0]: fs_name/target_name,
|
|
* [1]: rule string
|
|
* moving them to index [1] and [2], and insert MGC's
|
|
* obdname at index [0].
|
|
*/
|
|
if (clli && !clli->cfg_instance &&
|
|
lcfg->lcfg_command == LCFG_SPTLRPC_CONF) {
|
|
lustre_cfg_bufs_set(&bufs, 2, bufs.lcfg_buf[1],
|
|
bufs.lcfg_buflen[1]);
|
|
lustre_cfg_bufs_set(&bufs, 1, bufs.lcfg_buf[0],
|
|
bufs.lcfg_buflen[0]);
|
|
lustre_cfg_bufs_set_string(&bufs, 0,
|
|
clli->cfg_obdname);
|
|
}
|
|
|
|
lcfg_new = lustre_cfg_new(lcfg->lcfg_command, &bufs);
|
|
|
|
lcfg_new->lcfg_num = lcfg->lcfg_num;
|
|
lcfg_new->lcfg_flags = lcfg->lcfg_flags;
|
|
|
|
/* XXX Hack to try to remain binary compatible with
|
|
* pre-newconfig logs
|
|
*/
|
|
if (lcfg->lcfg_nal != 0 && /* pre-newconfig log? */
|
|
(lcfg->lcfg_nid >> 32) == 0) {
|
|
__u32 addr = (__u32)(lcfg->lcfg_nid & 0xffffffff);
|
|
|
|
lcfg_new->lcfg_nid =
|
|
LNET_MKNID(LNET_MKNET(lcfg->lcfg_nal, 0), addr);
|
|
CWARN("Converted pre-newconfig NAL %d NID %x to %s\n",
|
|
lcfg->lcfg_nal, addr,
|
|
libcfs_nid2str(lcfg_new->lcfg_nid));
|
|
} else {
|
|
lcfg_new->lcfg_nid = lcfg->lcfg_nid;
|
|
}
|
|
|
|
lcfg_new->lcfg_nal = 0; /* illegal value for obsolete field */
|
|
|
|
rc = class_process_config(lcfg_new);
|
|
lustre_cfg_free(lcfg_new);
|
|
|
|
if (inst)
|
|
kfree(inst_name);
|
|
break;
|
|
}
|
|
default:
|
|
CERROR("Unknown llog record type %#x encountered\n",
|
|
rec->lrh_type);
|
|
break;
|
|
}
|
|
out:
|
|
if (rc) {
|
|
CERROR("%s: cfg command failed: rc = %d\n",
|
|
handle->lgh_ctxt->loc_obd->obd_name, rc);
|
|
class_config_dump_handler(NULL, handle, rec, data);
|
|
}
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL(class_config_llog_handler);
|
|
|
|
int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
|
|
char *name, struct config_llog_instance *cfg)
|
|
{
|
|
struct llog_process_cat_data cd = {0, 0};
|
|
struct llog_handle *llh;
|
|
llog_cb_t callback;
|
|
int rc;
|
|
|
|
CDEBUG(D_INFO, "looking up llog %s\n", name);
|
|
rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
|
|
if (rc)
|
|
goto parse_out;
|
|
|
|
/* continue processing from where we last stopped to end-of-log */
|
|
if (cfg) {
|
|
cd.lpcd_first_idx = cfg->cfg_last_idx;
|
|
callback = cfg->cfg_callback;
|
|
LASSERT(callback);
|
|
} else {
|
|
callback = class_config_llog_handler;
|
|
}
|
|
|
|
cd.lpcd_last_idx = 0;
|
|
|
|
rc = llog_process(env, llh, callback, cfg, &cd);
|
|
|
|
CDEBUG(D_CONFIG, "Processed log %s gen %d-%d (rc=%d)\n", name,
|
|
cd.lpcd_first_idx + 1, cd.lpcd_last_idx, rc);
|
|
if (cfg)
|
|
cfg->cfg_last_idx = cd.lpcd_last_idx;
|
|
|
|
parse_out:
|
|
llog_close(env, llh);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL(class_config_parse_llog);
|
|
|
|
/**
|
|
* parse config record and output dump in supplied buffer.
|
|
* This is separated from class_config_dump_handler() to use
|
|
* for ioctl needs as well
|
|
*/
|
|
static int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf,
|
|
int size)
|
|
{
|
|
struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
|
|
char *ptr = buf;
|
|
char *end = buf + size;
|
|
int rc = 0;
|
|
|
|
LASSERT(rec->lrh_type == OBD_CFG_REC);
|
|
rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
ptr += snprintf(ptr, end-ptr, "cmd=%05x ", lcfg->lcfg_command);
|
|
if (lcfg->lcfg_flags)
|
|
ptr += snprintf(ptr, end-ptr, "flags=%#08x ",
|
|
lcfg->lcfg_flags);
|
|
|
|
if (lcfg->lcfg_num)
|
|
ptr += snprintf(ptr, end-ptr, "num=%#08x ", lcfg->lcfg_num);
|
|
|
|
if (lcfg->lcfg_nid) {
|
|
char nidstr[LNET_NIDSTR_SIZE];
|
|
|
|
libcfs_nid2str_r(lcfg->lcfg_nid, nidstr, sizeof(nidstr));
|
|
ptr += snprintf(ptr, end-ptr, "nid=%s(%#llx)\n ",
|
|
nidstr, lcfg->lcfg_nid);
|
|
}
|
|
|
|
if (lcfg->lcfg_command == LCFG_MARKER) {
|
|
struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
|
|
|
|
ptr += snprintf(ptr, end-ptr, "marker=%d(%#x)%s '%s'",
|
|
marker->cm_step, marker->cm_flags,
|
|
marker->cm_tgtname, marker->cm_comment);
|
|
} else {
|
|
int i;
|
|
|
|
for (i = 0; i < lcfg->lcfg_bufcount; i++) {
|
|
ptr += snprintf(ptr, end-ptr, "%d:%s ", i,
|
|
lustre_cfg_string(lcfg, i));
|
|
}
|
|
}
|
|
/* return consumed bytes */
|
|
rc = ptr - buf;
|
|
return rc;
|
|
}
|
|
|
|
int class_config_dump_handler(const struct lu_env *env,
|
|
struct llog_handle *handle,
|
|
struct llog_rec_hdr *rec, void *data)
|
|
{
|
|
char *outstr;
|
|
int rc = 0;
|
|
|
|
outstr = kzalloc(256, GFP_NOFS);
|
|
if (!outstr)
|
|
return -ENOMEM;
|
|
|
|
if (rec->lrh_type == OBD_CFG_REC) {
|
|
class_config_parse_rec(rec, outstr, 256);
|
|
LCONSOLE(D_WARNING, " %s\n", outstr);
|
|
} else {
|
|
LCONSOLE(D_WARNING, "unhandled lrh_type: %#x\n", rec->lrh_type);
|
|
rc = -EINVAL;
|
|
}
|
|
|
|
kfree(outstr);
|
|
return rc;
|
|
}
|
|
|
|
/** Call class_cleanup and class_detach.
|
|
* "Manual" only in the sense that we're faking lcfg commands.
|
|
*/
|
|
int class_manual_cleanup(struct obd_device *obd)
|
|
{
|
|
char flags[3] = "";
|
|
struct lustre_cfg *lcfg;
|
|
struct lustre_cfg_bufs bufs;
|
|
int rc;
|
|
|
|
if (!obd) {
|
|
CERROR("empty cleanup\n");
|
|
return -EALREADY;
|
|
}
|
|
|
|
if (obd->obd_force)
|
|
strcat(flags, "F");
|
|
if (obd->obd_fail)
|
|
strcat(flags, "A");
|
|
|
|
CDEBUG(D_CONFIG, "Manual cleanup of %s (flags='%s')\n",
|
|
obd->obd_name, flags);
|
|
|
|
lustre_cfg_bufs_reset(&bufs, obd->obd_name);
|
|
lustre_cfg_bufs_set_string(&bufs, 1, flags);
|
|
lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
|
|
if (!lcfg)
|
|
return -ENOMEM;
|
|
|
|
rc = class_process_config(lcfg);
|
|
if (rc) {
|
|
CERROR("cleanup failed %d: %s\n", rc, obd->obd_name);
|
|
goto out;
|
|
}
|
|
|
|
/* the lcfg is almost the same for both ops */
|
|
lcfg->lcfg_command = LCFG_DETACH;
|
|
rc = class_process_config(lcfg);
|
|
if (rc)
|
|
CERROR("detach failed %d: %s\n", rc, obd->obd_name);
|
|
out:
|
|
lustre_cfg_free(lcfg);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL(class_manual_cleanup);
|
|
|
|
/*
|
|
* uuid<->export lustre hash operations
|
|
*/
|
|
|
|
static unsigned
|
|
uuid_hash(struct cfs_hash *hs, const void *key, unsigned mask)
|
|
{
|
|
return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
|
|
sizeof(((struct obd_uuid *)key)->uuid), mask);
|
|
}
|
|
|
|
static void *
|
|
uuid_key(struct hlist_node *hnode)
|
|
{
|
|
struct obd_export *exp;
|
|
|
|
exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
|
|
|
|
return &exp->exp_client_uuid;
|
|
}
|
|
|
|
/*
|
|
* NOTE: It is impossible to find an export that is in failed
|
|
* state with this function
|
|
*/
|
|
static int
|
|
uuid_keycmp(const void *key, struct hlist_node *hnode)
|
|
{
|
|
struct obd_export *exp;
|
|
|
|
LASSERT(key);
|
|
exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
|
|
|
|
return obd_uuid_equals(key, &exp->exp_client_uuid) &&
|
|
!exp->exp_failed;
|
|
}
|
|
|
|
static void *
|
|
uuid_export_object(struct hlist_node *hnode)
|
|
{
|
|
return hlist_entry(hnode, struct obd_export, exp_uuid_hash);
|
|
}
|
|
|
|
static void
|
|
uuid_export_get(struct cfs_hash *hs, struct hlist_node *hnode)
|
|
{
|
|
struct obd_export *exp;
|
|
|
|
exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
|
|
class_export_get(exp);
|
|
}
|
|
|
|
static void
|
|
uuid_export_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
|
|
{
|
|
struct obd_export *exp;
|
|
|
|
exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
|
|
class_export_put(exp);
|
|
}
|
|
|
|
static struct cfs_hash_ops uuid_hash_ops = {
|
|
.hs_hash = uuid_hash,
|
|
.hs_key = uuid_key,
|
|
.hs_keycmp = uuid_keycmp,
|
|
.hs_object = uuid_export_object,
|
|
.hs_get = uuid_export_get,
|
|
.hs_put_locked = uuid_export_put_locked,
|
|
};
|