-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (c) 2001-2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * 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.
+ * 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).
*
- * 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * 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.
*
- * Config API
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
+ * lustre/obdclass/obd_config.c
+ *
+ * Config API
*/
#define DEBUG_SUBSYSTEM S_CLASS
#ifdef __KERNEL__
-#include <linux/kmod.h> /* for request_module() */
-#include <linux/module.h>
-#include <linux/obd_class.h>
-#include <linux/random.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#else
+#include <obd_class.h>
+#include <linux/string.h>
+#include <lustre_disk.h>
+#else
#include <liblustre.h>
-#include <linux/obd_class.h>
-#include <linux/obd.h>
+#include <string.h>
+#include <obd_class.h>
+#include <obd.h>
#endif
-#include <linux/lustre_log.h>
-#include <linux/lprocfs_status.h>
-#include <portals/list.h>
+#include <lustre_ioctl.h>
+#include <lustre_log.h>
+#include <lprocfs_status.h>
+#include <lustre_param.h>
+
+#include "llog_internal.h"
+
+static cfs_hash_ops_t uuid_hash_ops;
+static cfs_hash_ops_t nid_hash_ops;
+static cfs_hash_ops_t nid_stat_hash_ops;
+/*********** string parsing utils *********/
-/* Create a new device and set the type, name and uuid. If
- * successful, the new device can be accessed by either name or uuid.
+/* 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;
+
+ if ((ptr = strstr(buf, key)) == NULL)
+ return 1;
+
+ if (valp)
+ *valp = ptr + strlen(key);
+
+ return 0;
+}
+EXPORT_SYMBOL(class_find_param);
+
+/**
+ * Check whether the proc parameter \a param is an old parameter or not from
+ * the array \a ptr which contains the mapping from old parameters to new ones.
+ * If it's an old one, then return the pointer to the cfg_interop_param struc-
+ * ture which contains both the old and new parameters.
+ *
+ * \param param proc parameter
+ * \param ptr an array which contains the mapping from
+ * old parameters to new ones
+ *
+ * \retval valid-pointer pointer to the cfg_interop_param structure
+ * which contains the old and new parameters
+ * \retval NULL \a param or \a ptr is NULL,
+ * or \a param is not an old parameter
*/
-int class_attach(struct lustre_cfg *lcfg)
+struct cfg_interop_param *class_find_old_param(const char *param,
+ struct cfg_interop_param *ptr)
{
- int minor;
- struct obd_type *type;
- int err = 0;
- int len;
- char *typename;
- char *name;
- char *uuid;
- struct obd_device *obd;
- int dev;
-
- if (!lcfg->lcfg_inllen1 || !lcfg->lcfg_inlbuf1) {
- CERROR("No type passed!\n");
- RETURN(-EINVAL);
- }
- if (lcfg->lcfg_inlbuf1[lcfg->lcfg_inllen1 - 1] != 0) {
- CERROR("Type not nul terminated!\n");
- RETURN(-EINVAL);
+ char *value = NULL;
+ int name_len = 0;
+
+ if (param == NULL || ptr == NULL)
+ RETURN(NULL);
+
+ value = strchr(param, '=');
+ if (value == NULL)
+ name_len = strlen(param);
+ else
+ name_len = value - param;
+
+ while (ptr->old_param != NULL) {
+ if (strncmp(param, ptr->old_param, name_len) == 0 &&
+ name_len == strlen(ptr->old_param))
+ RETURN(ptr);
+ ptr++;
}
- typename = lcfg->lcfg_inlbuf1;
- if (!lcfg->lcfg_dev_namelen || !lcfg->lcfg_dev_name) {
- CERROR("No name passed!\n");
- RETURN(-EINVAL);
- }
- if (lcfg->lcfg_dev_name[lcfg->lcfg_dev_namelen - 1] != 0) {
- CERROR("Name not nul terminated!\n");
- RETURN(-EINVAL);
- }
- name = lcfg->lcfg_dev_name;
+ RETURN(NULL);
+}
+EXPORT_SYMBOL(class_find_old_param);
- if (!lcfg->lcfg_inllen2 || !lcfg->lcfg_inlbuf2) {
- CERROR("No UUID passed!\n");
- RETURN(-EINVAL);
- }
- if (lcfg->lcfg_inlbuf2[lcfg->lcfg_inllen2 - 1] != 0) {
- CERROR("UUID not nul terminated!\n");
- RETURN(-EINVAL);
- }
- uuid = lcfg->lcfg_inlbuf2;
+/**
+ * Finds a parameter in \a params and copies it to \a copy.
+ *
+ * Leading spaces are skipped. Next space or end of string is the
+ * parameter terminator with the exception that spaces inside single or double
+ * quotes get included into a parameter. The parameter is copied into \a copy
+ * which has to be allocated big enough by a caller, quotes are stripped in
+ * the copy and the copy is terminated by 0.
+ *
+ * On return \a params is set to next parameter or to NULL if last
+ * parameter is returned.
+ *
+ * \retval 0 if parameter is returned in \a copy
+ * \retval 1 otherwise
+ * \retval -EINVAL if unbalanced quota is found
+ */
+int class_get_next_param(char **params, char *copy)
+{
+ char *q1, *q2, *str;
+ int len;
- CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n",
- MKSTR(lcfg->lcfg_inlbuf1),
- MKSTR(lcfg->lcfg_dev_name), MKSTR(lcfg->lcfg_inlbuf2));
+ str = *params;
+ while (*str == ' ')
+ str++;
- /* find the type */
- type = class_get_type(typename);
- if (!type) {
- CERROR("OBD: unknown type: %s\n", typename);
- RETURN(-EINVAL);
+ if (*str == '\0') {
+ *params = NULL;
+ return 1;
}
-
- obd = class_name2obd(name);
- if (obd != NULL) {
- CERROR("obd %s already attached\n", name);
- RETURN(-EEXIST);
+
+ while (1) {
+ q1 = strpbrk(str, " '\"");
+ if (q1 == NULL) {
+ len = strlen(str);
+ memcpy(copy, str, len);
+ copy[len] = '\0';
+ *params = NULL;
+ return 0;
+ }
+ len = q1 - str;
+ if (*q1 == ' ') {
+ memcpy(copy, str, len);
+ copy[len] = '\0';
+ *params = str + len;
+ return 0;
+ }
+
+ memcpy(copy, str, len);
+ copy += len;
+
+ /* search for the matching closing quote */
+ str = q1 + 1;
+ q2 = strchr(str, *q1);
+ if (q2 == NULL) {
+ CERROR("Unbalanced quota in parameters: \"%s\"\n",
+ *params);
+ return -EINVAL;
+ }
+ len = q2 - str;
+ memcpy(copy, str, len);
+ copy += len;
+ str = q2 + 1;
}
+ return 1;
+}
+EXPORT_SYMBOL(class_get_next_param);
- obd = class_newdev(&dev);
- if (obd == NULL)
- RETURN(-EINVAL);
+/* returns 0 if this is the first key in the buffer, else 1.
+ valp points to first char after key. */
+int class_match_param(char *buf, char *key, char **valp)
+{
+ if (!buf)
+ return 1;
- /* have we attached a type to this device */
- if (obd->obd_attached || obd->obd_type) {
- CERROR("OBD: Device %d already typed as %s.\n",
- obd->obd_minor, MKSTR(obd->obd_type->typ_name));
- RETURN(-EBUSY);
- }
+ if (memcmp(buf, key, strlen(key)) != 0)
+ return 1;
- LASSERT(obd == (obd_dev + obd->obd_minor));
-
- minor = obd->obd_minor;
- memset(obd, 0, sizeof(*obd));
- obd->obd_minor = minor;
- obd->obd_type = type;
- INIT_LIST_HEAD(&obd->obd_exports);
- obd->obd_num_exports = 0;
- spin_lock_init(&obd->obd_dev_lock);
- init_waitqueue_head(&obd->obd_refcount_waitq);
-
- /* XXX belongs in setup not attach */
- /* recovery data */
- spin_lock_init(&obd->obd_processing_task_lock);
- init_waitqueue_head(&obd->obd_next_transno_waitq);
- INIT_LIST_HEAD(&obd->obd_recovery_queue);
- INIT_LIST_HEAD(&obd->obd_delayed_reply_queue);
-
- init_waitqueue_head(&obd->obd_commit_waitq);
-
- len = strlen(name) + 1;
- OBD_ALLOC(obd->obd_name, len);
- if (!obd->obd_name) {
- class_put_type(obd->obd_type);
- obd->obd_type = NULL;
- RETURN(-ENOMEM);
+ if (valp)
+ *valp = buf + strlen(key);
+
+ return 0;
+}
+EXPORT_SYMBOL(class_match_param);
+
+static int parse_nid(char *buf, void *value, int quiet)
+{
+ lnet_nid_t *nid = (lnet_nid_t *)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 = (__u32 *)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 == NULL)
+ 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);
+
+int class_parse_net(char *buf, __u32 *net, char **endh)
+{
+ return class_parse_value(buf, CLASS_PARSE_NET, (void *)net, endh, 0);
+}
+EXPORT_SYMBOL(class_parse_net);
+
+/* 1 param contains key and match
+ * 0 param contains key and not match
+ * -1 param does not contain key
+ */
+int class_match_nid(char *buf, char *key, lnet_nid_t nid)
+{
+ lnet_nid_t tmp;
+ int rc = -1;
+
+ while (class_find_param(buf, key, &buf) == 0) {
+ /* please restrict to the nids pertaining to
+ * the specified nids */
+ while (class_parse_nid(buf, &tmp, &buf) == 0) {
+ if (tmp == nid)
+ return 1;
+ }
+ rc = 0;
}
- memcpy(obd->obd_name, name, len);
-
+ return rc;
+}
+EXPORT_SYMBOL(class_match_nid);
+
+int class_match_net(char *buf, char *key, __u32 net)
+{
+ __u32 tmp;
+ int rc = -1;
+
+ while (class_find_param(buf, key, &buf) == 0) {
+ /* please restrict to the nids pertaining to
+ * the specified networks */
+ while (class_parse_net(buf, &tmp, &buf) == 0) {
+ if (tmp == net)
+ return 1;
+ }
+ rc = 0;
+ }
+ return rc;
+}
+EXPORT_SYMBOL(class_match_net);
+
+/********************** 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.
+ */
+int class_attach(struct lustre_cfg *lcfg)
+{
+ struct obd_device *obd = NULL;
+ char *typename, *name, *uuid;
+ int rc, len;
+ ENTRY;
+
+ 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, rc);
+ }
+ LASSERTF(obd != NULL, "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);
+ INIT_LIST_HEAD(&obd->obd_exports_timed);
+ INIT_LIST_HEAD(&obd->obd_nid_stats);
+ 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 */
+ cfs_init_timer(&obd->obd_recovery_timer);
+ spin_lock_init(&obd->obd_recovery_task_lock);
+ init_waitqueue_head(&obd->obd_next_transno_waitq);
+ init_waitqueue_head(&obd->obd_evict_inprogress_waitq);
+ INIT_LIST_HEAD(&obd->obd_req_replay_queue);
+ INIT_LIST_HEAD(&obd->obd_lock_replay_queue);
+ INIT_LIST_HEAD(&obd->obd_final_req_queue);
+ INIT_LIST_HEAD(&obd->obd_evict_list);
+ INIT_LIST_HEAD(&obd->obd_lwp_list);
+
+ llog_group_init(&obd->obd_olg);
+
+ obd->obd_conn_inprogress = 0;
+
len = strlen(uuid);
if (len >= sizeof(obd->obd_uuid)) {
- CERROR("uuid must be < "LPSZ" bytes long\n",
- sizeof(obd->obd_uuid));
- OBD_FREE(obd->obd_name, strlen(obd->obd_name) + 1);
- class_put_type(obd->obd_type);
- obd->obd_type = NULL;
- RETURN(-EINVAL);
+ CERROR("uuid must be < %d bytes long\n",
+ (int)sizeof(obd->obd_uuid));
+ GOTO(out, rc = -EINVAL);
}
memcpy(obd->obd_uuid.uuid, uuid, len);
- /* do the attach */
- if (OBP(obd, attach))
- err = OBP(obd,attach)(obd, sizeof *lcfg, lcfg);
-
- if (err) {
- OBD_FREE(obd->obd_name, strlen(obd->obd_name) + 1);
- class_put_type(obd->obd_type);
- obd->obd_type = NULL;
- } else {
- obd->obd_attached = 1;
- type->typ_refcnt++;
- CDEBUG(D_IOCTL, "OBD: dev %d attached type %s\n",
- obd->obd_minor, typename);
+ /* 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 != NULL) {
+ class_release_dev(obd);
}
- RETURN(err);
+ return rc;
}
+EXPORT_SYMBOL(class_attach);
+/** Create hashes, self-export, and call type-specific setup.
+ * Setup is effectively the "start this obd" call.
+ */
int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
int err = 0;
struct obd_export *exp;
ENTRY;
- LASSERT(obd == (obd_dev + obd->obd_minor));
+ LASSERT(obd != NULL);
+ 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) {
RETURN(-ENODEV);
}
- /* has this been done already? */
if (obd->obd_set_up) {
CERROR("Device %d already setup (type %s)\n",
obd->obd_minor, obd->obd_type->typ_name);
- RETURN(-EBUSY);
+ RETURN(-EEXIST);
}
- atomic_set(&obd->obd_refcount, 0);
-
- err = obd_setup(obd, sizeof(*lcfg), lcfg);
- if (err) {
- RETURN(err);
+ /* 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);
}
-
- obd->obd_type->typ_refcnt++;
- obd->obd_set_up = 1;
+ /* 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;
+ obd->obd_nid_hash = NULL;
+ obd->obd_nid_stats_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)
+ GOTO(err_hash, err = -ENOMEM);
+
+ /* create a nid-export lustre hash */
+ obd->obd_nid_hash = cfs_hash_create("NID_HASH",
+ HASH_NID_CUR_BITS,
+ HASH_NID_MAX_BITS,
+ HASH_NID_BKT_BITS, 0,
+ CFS_HASH_MIN_THETA,
+ CFS_HASH_MAX_THETA,
+ &nid_hash_ops, CFS_HASH_DEFAULT);
+ if (!obd->obd_nid_hash)
+ GOTO(err_hash, err = -ENOMEM);
+
+ /* create a nid-stats lustre hash */
+ obd->obd_nid_stats_hash = cfs_hash_create("NID_STATS",
+ HASH_NID_STATS_CUR_BITS,
+ HASH_NID_STATS_MAX_BITS,
+ HASH_NID_STATS_BKT_BITS, 0,
+ CFS_HASH_MIN_THETA,
+ CFS_HASH_MAX_THETA,
+ &nid_stat_hash_ops, CFS_HASH_DEFAULT);
+ if (!obd->obd_nid_stats_hash)
+ GOTO(err_hash, err = -ENOMEM);
+
+ exp = class_new_export(obd, &obd->obd_uuid);
+ if (IS_ERR(exp))
+ GOTO(err_hash, err = PTR_ERR(exp));
- exp = class_new_export(obd);
- if (exp == NULL) {
- GOTO(err_cleanup, err = -ENOMEM);
- }
- memcpy(&exp->exp_client_uuid, &obd->obd_uuid,
- sizeof(exp->exp_client_uuid));
obd->obd_self_export = exp;
+ list_del_init(&exp->exp_obd_chain_timed);
class_export_put(exp);
- if (OBT(obd) && OBP(obd, postsetup)) {
- err = obd_postsetup(obd);
- if (err)
- GOTO(err_exp, err);
- }
+ err = obd_setup(obd, lcfg);
+ if (err)
+ GOTO(err_exp, err);
- RETURN(err);
+ 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:
- class_unlink_export(obd->obd_self_export);
- obd->obd_self_export = NULL;
-err_cleanup:
- obd->obd_stopping = 1;
- obd_cleanup(obd, 0);
- obd->obd_set_up = obd->obd_stopping = 0;
- obd->obd_type->typ_refcnt--;
- RETURN(err);
+ 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;
+ }
+ if (obd->obd_nid_hash) {
+ cfs_hash_putref(obd->obd_nid_hash);
+ obd->obd_nid_hash = NULL;
+ }
+ if (obd->obd_nid_stats_hash) {
+ cfs_hash_putref(obd->obd_nid_stats_hash);
+ obd->obd_nid_stats_hash = NULL;
+ }
+ obd->obd_starting = 0;
+ CERROR("setup %s failed (%d)\n", obd->obd_name, err);
+ return err;
}
+EXPORT_SYMBOL(class_setup);
+/** We have finished using this obd and are ready to destroy it.
+ * There can be no more references to this obd.
+ */
int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
{
- int minor;
- int err = 0;
-
ENTRY;
+
if (obd->obd_set_up) {
CERROR("OBD device %d still set up\n", obd->obd_minor);
RETURN(-EBUSY);
}
- if (!obd->obd_attached) {
- CERROR("OBD device %d not attached\n", obd->obd_minor);
- RETURN(-ENODEV);
- }
- if (OBP(obd, detach))
- err = OBP(obd,detach)(obd);
-
- if (obd->obd_name) {
- OBD_FREE(obd->obd_name, strlen(obd->obd_name)+1);
- obd->obd_name = NULL;
- } else
- CERROR("device %d: no name at detach\n", obd->obd_minor);
-
- obd->obd_attached = 0;
- obd->obd_type->typ_refcnt--;
- class_put_type(obd->obd_type);
- obd->obd_type = NULL;
- minor = obd->obd_minor;
- memset(obd, 0, sizeof(*obd));
- obd->obd_minor = minor;
- RETURN(err);
-}
-static void dump_exports(struct obd_device *obd)
-{
- struct obd_export *exp, *n;
+ 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);
- list_for_each_entry_safe(exp, n, &obd->obd_exports, exp_obd_chain) {
- CERROR("%s: %p %s %d %d %p\n",
- obd->obd_name, exp, exp->exp_client_uuid.uuid,
- atomic_read(&exp->exp_refcount),
- exp->exp_failed, exp->exp_outstanding_reply );
- }
+ CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
+ obd->obd_name, obd->obd_uuid.uuid);
+
+ class_decref(obd, "attach", obd);
+ RETURN(0);
}
+EXPORT_SYMBOL(class_detach);
+/** Start shutting down the obd. There may be in-progess ops when
+ * this is called. We tell them to start shutting down with a call
+ * to class_disconnect_exports().
+ */
int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
- int flags = 0;
- int err = 0;
+ int err = 0;
char *flag;
-
ENTRY;
+
+ OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
+
if (!obd->obd_set_up) {
CERROR("Device %d not setup\n", obd->obd_minor);
RETURN(-ENODEV);
}
- if (lcfg->lcfg_inlbuf1) {
- for (flag = lcfg->lcfg_inlbuf1; *flag != 0; flag++)
+ 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;
+ spin_unlock(&obd->obd_dev_lock);
+
+ /* wait for already-arrived-connections to finish. */
+ while (obd->obd_conn_inprogress > 0)
+ yield();
+ smp_rmb();
+
+ 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':
- flags |= OBD_OPT_FORCE;
+ obd->obd_force = 1;
break;
case 'A':
- flags |= OBD_OPT_FAILOVER;
+ 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);
+ CERROR("Unrecognised flag '%c'\n", *flag);
}
}
- /* The one reference that should be remaining is the
- * obd_self_export */
- if (atomic_read(&obd->obd_refcount) <= 1 ||
- flags & OBD_OPT_FORCE) {
- /* this will stop new connections, and need to
- do it before class_disconnect_exports() */
- obd->obd_stopping = 1;
+ LASSERT(obd->obd_self_export);
+
+ /* The three references that should be remaining are the
+ * obd_self_export and the attach and setup references. */
+ if (atomic_read(&obd->obd_refcount) > 3) {
+ /* refcounf - 3 might be the number of real exports
+ (excluding self export). But class_incref is called
+ by other things as well, so don't count on it. */
+ CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n",
+ obd->obd_name, atomic_read(&obd->obd_refcount) - 3);
+ dump_exports(obd, 0);
+ class_disconnect_exports(obd);
}
- if (atomic_read(&obd->obd_refcount) > 1) {
- struct l_wait_info lwi = LWI_TIMEOUT_INTR(1 * HZ, NULL,
- NULL, NULL);
- int rc;
+ /* 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);
- if (!(flags & OBD_OPT_FORCE)) {
- CERROR("OBD device %d (%p) has refcount %d\n",
- obd->obd_minor, obd,
- atomic_read(&obd->obd_refcount));
- dump_exports(obd);
- GOTO(out, err = -EBUSY);
- }
- class_disconnect_exports(obd, flags);
- CDEBUG(D_IOCTL,
- "%s: waiting for obd refs to go away: %d\n",
- obd->obd_name, atomic_read(&obd->obd_refcount));
-
- rc = l_wait_event(obd->obd_refcount_waitq,
- atomic_read(&obd->obd_refcount) < 2, &lwi);
- if (rc == 0) {
- LASSERT(atomic_read(&obd->obd_refcount) == 1);
- } else {
- CERROR("wait cancelled cleaning anyway. "
- "refcount: %d\n",
- atomic_read(&obd->obd_refcount));
- dump_exports(obd);
- }
- CDEBUG(D_IOCTL, "%s: awake, now finishing cleanup\n",
- obd->obd_name);
+ /* destroy an uuid-export hash body */
+ if (obd->obd_uuid_hash) {
+ cfs_hash_putref(obd->obd_uuid_hash);
+ obd->obd_uuid_hash = NULL;
}
- if (obd->obd_self_export) {
- err = obd_precleanup(obd, flags);
- if (err)
- GOTO(out, err);
+ /* destroy a nid-export hash body */
+ if (obd->obd_nid_hash) {
+ cfs_hash_putref(obd->obd_nid_hash);
+ obd->obd_nid_hash = NULL;
+ }
+
+ /* destroy a nid-stats hash body */
+ if (obd->obd_nid_stats_hash) {
+ cfs_hash_putref(obd->obd_nid_stats_hash);
+ obd->obd_nid_stats_hash = NULL;
+ }
+
+ class_decref(obd, "setup", obd);
+ obd->obd_set_up = 0;
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(class_cleanup);
+
+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);
- obd->obd_self_export = NULL;
+ return;
}
- err = obd_cleanup(obd, flags);
-out:
- if (!err) {
- obd->obd_set_up = obd->obd_stopping = 0;
- obd->obd_type->typ_refcnt--;
- /* XXX this should be an LASSERT */
- if (atomic_read(&obd->obd_refcount) > 0)
- CERROR("%s still has refcount %d after "
- "cleanup.\n", obd->obd_name,
- atomic_read(&obd->obd_refcount));
- }
+ 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);
+ }
- RETURN(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.
+ */
+int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
+{
+ struct obd_import *imp;
+ struct obd_uuid uuid;
+ int rc;
+ ENTRY;
+
+ 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);
+}
+EXPORT_SYMBOL(class_add_conn);
+
+/** Remove a failover nid location.
+ */
+int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
+{
+ struct obd_import *imp;
+ struct obd_uuid uuid;
+ int rc;
+ ENTRY;
+
+ 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 list_head lustre_profile_list =
+ LIST_HEAD_INIT(lustre_profile_list);
-struct lustre_profile *class_get_profile(char * prof)
+struct lustre_profile *class_get_profile(const char * prof)
{
struct lustre_profile *lprof;
-
- list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
+
+ ENTRY;
+ 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);
-int class_add_profile(int proflen, char *prof,
- int osclen, char *osc,
+/** 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.
+ */
+int class_add_profile(int proflen, char *prof, int osclen, char *osc,
int mdclen, char *mdc)
{
struct lustre_profile *lprof;
int err = 0;
+ ENTRY;
+
+ CDEBUG(D_CONFIG, "Add profile %s\n", prof);
OBD_ALLOC(lprof, sizeof(*lprof));
if (lprof == NULL)
- GOTO(out, err = -ENOMEM);
- INIT_LIST_HEAD(&lprof->lp_list);
+ RETURN(-ENOMEM);
+ INIT_LIST_HEAD(&lprof->lp_list);
LASSERT(proflen == (strlen(prof) + 1));
OBD_ALLOC(lprof->lp_profile, proflen);
if (lprof->lp_profile == NULL)
GOTO(out, err = -ENOMEM);
memcpy(lprof->lp_profile, prof, proflen);
-
+
LASSERT(osclen == (strlen(osc) + 1));
- OBD_ALLOC(lprof->lp_osc, osclen);
- if (lprof->lp_profile == NULL)
+ OBD_ALLOC(lprof->lp_dt, osclen);
+ if (lprof->lp_dt == NULL)
GOTO(out, err = -ENOMEM);
- memcpy(lprof->lp_osc, osc, osclen);
+ memcpy(lprof->lp_dt, osc, osclen);
if (mdclen > 0) {
LASSERT(mdclen == (strlen(mdc) + 1));
- OBD_ALLOC(lprof->lp_mdc, mdclen);
- if (lprof->lp_mdc == NULL)
+ OBD_ALLOC(lprof->lp_md, mdclen);
+ if (lprof->lp_md == NULL)
GOTO(out, err = -ENOMEM);
- memcpy(lprof->lp_mdc, mdc, mdclen);
+ memcpy(lprof->lp_md, mdc, mdclen);
}
- list_add(&lprof->lp_list, &lustre_profile_list);
+ list_add(&lprof->lp_list, &lustre_profile_list);
+ RETURN(err);
out:
+ if (lprof->lp_md)
+ OBD_FREE(lprof->lp_md, mdclen);
+ if (lprof->lp_dt)
+ OBD_FREE(lprof->lp_dt, osclen);
+ if (lprof->lp_profile)
+ OBD_FREE(lprof->lp_profile, proflen);
+ OBD_FREE(lprof, sizeof(*lprof));
RETURN(err);
}
-void class_del_profile(char *prof)
+void class_del_profile(const char *prof)
{
struct lustre_profile *lprof;
-
+ ENTRY;
+
+ CDEBUG(D_CONFIG, "Del profile %s\n", prof);
+
lprof = class_get_profile(prof);
if (lprof) {
- list_del(&lprof->lp_list);
+ list_del(&lprof->lp_list);
OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
- OBD_FREE(lprof->lp_osc, strlen(lprof->lp_osc) + 1);
- if (lprof->lp_mdc)
- OBD_FREE(lprof->lp_mdc, strlen(lprof->lp_mdc) + 1);
+ OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
+ if (lprof->lp_md)
+ OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
OBD_FREE(lprof, sizeof *lprof);
}
+ EXIT;
}
+EXPORT_SYMBOL(class_del_profile);
+/* COMPAT_146 */
+void class_del_profiles(void)
+{
+ struct lustre_profile *lprof, *n;
+ ENTRY;
+
+ list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
+ list_del(&lprof->lp_list);
+ OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
+ OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
+ if (lprof->lp_md)
+ OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
+ OBD_FREE(lprof, sizeof *lprof);
+ }
+ EXIT;
+}
+EXPORT_SYMBOL(class_del_profiles);
+
+static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg)
+{
+ ENTRY;
+ 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) = NULL;
+static int (*quota_process_config)(struct lustre_cfg *lcfg) = NULL;
+
+void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg))
+{
+ client_process_config = cpc;
+}
+EXPORT_SYMBOL(lustre_register_client_process_config);
+
+/**
+ * Rename the proc parameter in \a cfg with a new name \a new_name.
+ *
+ * \param cfg config structure which contains the proc parameter
+ * \param new_name new name of the proc parameter
+ *
+ * \retval valid-pointer pointer to the newly-allocated config structure
+ * which contains the renamed proc parameter
+ * \retval ERR_PTR(-EINVAL) if \a cfg or \a new_name is NULL, or \a cfg does
+ * not contain a proc parameter
+ * \retval ERR_PTR(-ENOMEM) if memory allocation failure occurs
+ */
+struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
+ const char *new_name)
+{
+ struct lustre_cfg_bufs *bufs = NULL;
+ struct lustre_cfg *new_cfg = NULL;
+ char *param = NULL;
+ char *new_param = NULL;
+ char *value = NULL;
+ int name_len = 0;
+ int new_len = 0;
+ ENTRY;
+
+ if (cfg == NULL || new_name == NULL)
+ RETURN(ERR_PTR(-EINVAL));
+
+ param = lustre_cfg_string(cfg, 1);
+ if (param == NULL)
+ RETURN(ERR_PTR(-EINVAL));
+
+ value = strchr(param, '=');
+ if (value == NULL)
+ name_len = strlen(param);
+ else
+ name_len = value - param;
+
+ new_len = LUSTRE_CFG_BUFLEN(cfg, 1) + strlen(new_name) - name_len;
+
+ OBD_ALLOC(new_param, new_len);
+ if (new_param == NULL)
+ RETURN(ERR_PTR(-ENOMEM));
+
+ strcpy(new_param, new_name);
+ if (value != NULL)
+ strcat(new_param, value);
+
+ OBD_ALLOC_PTR(bufs);
+ if (bufs == NULL) {
+ OBD_FREE(new_param, new_len);
+ RETURN(ERR_PTR(-ENOMEM));
+ }
+
+ lustre_cfg_bufs_reset(bufs, NULL);
+ lustre_cfg_bufs_init(bufs, cfg);
+ lustre_cfg_bufs_set_string(bufs, 1, new_param);
+
+ new_cfg = lustre_cfg_new(cfg->lcfg_command, bufs);
+
+ OBD_FREE(new_param, new_len);
+ OBD_FREE_PTR(bufs);
+ if (new_cfg == NULL)
+ RETURN(ERR_PTR(-ENOMEM));
+
+ new_cfg->lcfg_num = cfg->lcfg_num;
+ new_cfg->lcfg_flags = cfg->lcfg_flags;
+ new_cfg->lcfg_nid = cfg->lcfg_nid;
+ new_cfg->lcfg_nal = cfg->lcfg_nal;
+
+ RETURN(new_cfg);
+}
+EXPORT_SYMBOL(lustre_cfg_rename);
+
+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
+ };
+ struct timeval start;
+ struct timeval end;
+ int rc;
+ ENTRY;
+
+ /* Add upcall processing here. Now only lctl is supported */
+ if (strcmp(upcall, LCTL_UPCALL) != 0) {
+ CERROR("Unsupported upcall %s\n", upcall);
+ RETURN(-EINVAL);
+ }
+
+ do_gettimeofday(&start);
+ rc = call_usermodehelper(argv[0], argv, NULL, 0);
+ do_gettimeofday(&end);
+
+ if (rc < 0) {
+ CERROR("lctl: error invoking upcall %s %s %s: rc = %d; "
+ "time %ldus\n", argv[0], argv[1], argv[2], rc,
+ cfs_timeval_sub(&end, &start, NULL));
+ } else {
+ CDEBUG(D_HA, "lctl: invoked upcall %s %s %s, time %ldus\n",
+ argv[0], argv[1], argv[2],
+ cfs_timeval_sub(&end, &start, NULL));
+ rc = 0;
+ }
+
+ RETURN(rc);
+}
+
+void lustre_register_quota_process_config(int (*qpc)(struct lustre_cfg *lcfg))
+{
+ quota_process_config = qpc;
+}
+EXPORT_SYMBOL(lustre_register_quota_process_config);
+
+/** 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;
- char str[PTL_NALFMT_SIZE];
+ 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) {
+ switch(lcfg->lcfg_command) {
case LCFG_ATTACH: {
err = class_attach(lcfg);
GOTO(out, err);
}
case LCFG_ADD_UUID: {
CDEBUG(D_IOCTL, "adding mapping from uuid %s to nid "LPX64
- " (%s), nal %d\n", lcfg->lcfg_inlbuf1, lcfg->lcfg_nid,
- portals_nid2str(lcfg->lcfg_nal, lcfg->lcfg_nid, str),
- lcfg->lcfg_nal);
+ " (%s)\n", lustre_cfg_string(lcfg, 1),
+ lcfg->lcfg_nid, libcfs_nid2str(lcfg->lcfg_nid));
- err = class_add_uuid(lcfg->lcfg_inlbuf1, lcfg->lcfg_nid,
- lcfg->lcfg_nal);
+ err = class_add_uuid(lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid);
GOTO(out, err);
}
case LCFG_DEL_UUID: {
CDEBUG(D_IOCTL, "removing mappings for uuid %s\n",
- lcfg->lcfg_inlbuf1 == NULL ? "<all uuids>" :
- lcfg->lcfg_inlbuf1);
+ (lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) == 0)
+ ? "<all uuids>" : lustre_cfg_string(lcfg, 1));
- err = class_del_uuid(lcfg->lcfg_inlbuf1);
+ err = class_del_uuid(lustre_cfg_string(lcfg, 1));
GOTO(out, err);
}
case LCFG_MOUNTOPT: {
- CDEBUG(D_IOCTL, "mountopt: profile %s osc %s mdc %s\n",
- lcfg->lcfg_inlbuf1, lcfg->lcfg_inlbuf2, lcfg->lcfg_inlbuf3);
+ 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(lcfg->lcfg_inllen1, lcfg->lcfg_inlbuf1,
- lcfg->lcfg_inllen2, lcfg->lcfg_inlbuf2,
- lcfg->lcfg_inllen3, lcfg->lcfg_inlbuf3);
+ 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, err);
}
case LCFG_DEL_MOUNTOPT: {
- CDEBUG(D_IOCTL, "mountopt: profile %s\n", lcfg->lcfg_inlbuf1);
- /* set these mount options somewhere, so ll_fill_super
- * can find them. */
- class_del_profile(lcfg->lcfg_inlbuf1);
+ CDEBUG(D_IOCTL, "mountopt: profile %s\n",
+ lustre_cfg_string(lcfg, 1));
+ class_del_profile(lustre_cfg_string(lcfg, 1));
GOTO(out, err = 0);
}
case LCFG_SET_TIMEOUT: {
- CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n",
- obd_timeout,
- lcfg->lcfg_num);
- obd_timeout = lcfg->lcfg_num;
+ 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;
+ GOTO(out, err = 0);
+ }
+ case LCFG_SET_LDLM_TIMEOUT: {
+ CDEBUG(D_IOCTL, "changing lustre ldlm_timeout from %d to %d\n",
+ ldlm_timeout, lcfg->lcfg_num);
+ ldlm_timeout = max(lcfg->lcfg_num, 1U);
+ if (ldlm_timeout >= obd_timeout)
+ ldlm_timeout = max(obd_timeout / 3, 1U);
+ ldlm_timeout_set = 1;
GOTO(out, err = 0);
}
case LCFG_SET_UPCALL: {
- CDEBUG(D_IOCTL, "setting lustre ucpall to: %s\n",
- lcfg->lcfg_inlbuf1);
- if (lcfg->lcfg_inllen1 > sizeof obd_lustre_upcall)
- GOTO(out, err = -EINVAL);
- memcpy(obd_lustre_upcall, lcfg->lcfg_inlbuf1,
- lcfg->lcfg_inllen1);
+ LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
+ /* COMPAT_146 Don't fail on old configs */
+ GOTO(out, err = 0);
+ }
+ 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);
GOTO(out, err = 0);
}
+ case LCFG_PARAM: {
+ char *tmp;
+ /* llite has no obd */
+ if ((class_match_param(lustre_cfg_string(lcfg, 1),
+ PARAM_LLITE, 0) == 0) &&
+ client_process_config) {
+ err = (*client_process_config)(lcfg);
+ GOTO(out, err);
+ } 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);
+
+ GOTO(out, err = 0);
+ } else if ((class_match_param(lustre_cfg_string(lcfg, 1),
+ PARAM_QUOTA, &tmp) == 0) &&
+ quota_process_config) {
+ err = (*quota_process_config)(lcfg);
+ GOTO(out, err);
+ }
+
+ break;
}
-
-
- /* Commands that require a device */
- obd = class_name2obd(lcfg->lcfg_dev_name);
+ case LCFG_SET_PARAM: {
+ err = process_param2_config(lcfg);
+ GOTO(out, err = 0);
+ }
+ }
+ /* Commands that require a device */
+ obd = class_name2obd(lustre_cfg_string(lcfg, 0));
if (obd == NULL) {
- if (lcfg->lcfg_dev_name == NULL) {
+ if (!LUSTRE_CFG_BUFLEN(lcfg, 0))
CERROR("this lcfg command requires a device name\n");
- } else {
- CERROR("no device for: %s\n", lcfg->lcfg_dev_name);
- }
+ else
+ CERROR("no device for: %s\n",
+ lustre_cfg_string(lcfg, 0));
+
GOTO(out, err = -EINVAL);
- }
-
- switch(lcfg->lcfg_command) {
- case LCFG_SETUP: {
- err = class_setup(obd, lcfg);
- GOTO(out, err);
}
+
+ switch(lcfg->lcfg_command) {
+ case LCFG_SETUP: {
+ err = class_setup(obd, lcfg);
+ GOTO(out, err);
+ }
case LCFG_DETACH: {
err = class_detach(obd, lcfg);
GOTO(out, err = 0);
err = class_cleanup(obd, lcfg);
GOTO(out, err = 0);
}
- default: {
+ case LCFG_ADD_CONN: {
+ err = class_add_conn(obd, lcfg);
+ GOTO(out, err = 0);
+ }
+ case LCFG_DEL_CONN: {
+ err = class_del_conn(obd, lcfg);
+ GOTO(out, err = 0);
+ }
+ case LCFG_POOL_NEW: {
+ err = obd_pool_new(obd, lustre_cfg_string(lcfg, 2));
+ GOTO(out, err = 0);
+ }
+ case LCFG_POOL_ADD: {
+ err = obd_pool_add(obd, lustre_cfg_string(lcfg, 2),
+ lustre_cfg_string(lcfg, 3));
+ GOTO(out, err = 0);
+ }
+ case LCFG_POOL_REM: {
+ err = obd_pool_rem(obd, lustre_cfg_string(lcfg, 2),
+ lustre_cfg_string(lcfg, 3));
+ GOTO(out, err = 0);
+ }
+ case LCFG_POOL_DEL: {
+ err = obd_pool_del(obd, lustre_cfg_string(lcfg, 2));
+ GOTO(out, err = 0);
+ }
+ default: {
+ err = obd_process_config(obd, sizeof(*lcfg), lcfg);
+ GOTO(out, err);
+
+ }
+ }
+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);
+
+#ifndef HAVE_ONLY_PROCFS_SEQ
+int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
+ struct lustre_cfg *lcfg, void *data)
+{
+#ifdef __KERNEL__
+ struct lprocfs_vars *var;
+ char *key, *sval;
+ int i, keylen, vallen;
+ int matched = 0, j = 0;
+ int rc = 0;
+ int skip = 0;
+ ENTRY;
+
+ if (lcfg->lcfg_command != LCFG_PARAM) {
CERROR("Unknown command: %d\n", lcfg->lcfg_command);
- GOTO(out, err = -EINVAL);
+ RETURN(-EINVAL);
+ }
+ /* 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 */
+ if (class_match_param(key, prefix, &key))
+ /* If the prefix doesn't match, return error so we
+ * can pass it down the stack */
+ RETURN(-ENOSYS);
+ 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, (char *)var->name, 0) == 0 &&
+ keylen == strlen(var->name)) {
+ matched++;
+ rc = -EROFS;
+
+ if (var->write_fptr) {
+ mm_segment_t oldfs;
+ oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ rc = (var->write_fptr)(NULL, sval,
+ vallen, data);
+ set_fs(oldfs);
+ }
+ break;
+ }
+ j++;
+ }
+ if (!matched) {
+ CERROR("%.*s: %s unknown param %s\n",
+ (int)strlen(prefix) - 1, prefix,
+ (char *)lustre_cfg_string(lcfg, 0), key);
+ /* rc = -EINVAL; continue parsing other params */
+ skip++;
+ } else if (rc < 0) {
+ CERROR("%s: error writing proc entry '%s': rc = %d\n",
+ prefix, 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);
+#else
+ CDEBUG(D_CONFIG, "liblustre can't process params.\n");
+ /* Don't throw config error */
+ RETURN(0);
+#endif
+}
+EXPORT_SYMBOL(class_process_proc_param);
+#endif
+
+int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
+ struct lustre_cfg *lcfg, void *data)
+{
+#ifdef __KERNEL__
+ struct lprocfs_seq_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;
+ ENTRY;
+
+ if (lcfg->lcfg_command != LCFG_PARAM) {
+ CERROR("Unknown command: %d\n", lcfg->lcfg_command);
+ RETURN(-EINVAL);
}
-out:
- RETURN(err);
+
+ /* 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 */
+ if (class_match_param(key, prefix, &key))
+ /* If the prefix doesn't match, return error so we
+ * can pass it down the stack */
+ RETURN(-ENOSYS);
+ 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, (char *)var->name, 0) == 0 &&
+ 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) {
+ CERROR("%.*s: %s unknown param %s\n",
+ (int)strlen(prefix) - 1, prefix,
+ (char *)lustre_cfg_string(lcfg, 0), key);
+ /* rc = -EINVAL; continue parsing other params */
+ skip++;
+ } else if (rc < 0) {
+ CERROR("%s: error writing proc entry '%s': rc = %d\n",
+ prefix, 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);
+#else
+ CDEBUG(D_CONFIG, "liblustre can't process params.\n");
+ /* Don't throw config error */
+ RETURN(0);
+#endif
+}
+EXPORT_SYMBOL(class_process_proc_seq_param);
+
+#ifdef __KERNEL__
+extern int lustre_check_exclusion(struct super_block *sb, char *svname);
+#else
+#define lustre_check_exclusion(a,b) 0
+#endif
+
+/*
+ * Supplemental functions for config logs, it allocates lustre_cfg
+ * buffers plus initialized llog record header at the beginning.
+ */
+struct llog_cfg_rec *lustre_cfg_rec_new(int cmd, struct lustre_cfg_bufs *bufs)
+{
+ struct llog_cfg_rec *lcr;
+ int reclen;
+
+ ENTRY;
+
+ reclen = lustre_cfg_len(bufs->lcfg_bufcount, bufs->lcfg_buflen);
+ reclen = llog_data_len(reclen) + sizeof(struct llog_rec_hdr) +
+ sizeof(struct llog_rec_tail);
+
+ OBD_ALLOC(lcr, reclen);
+ if (lcr == NULL)
+ RETURN(NULL);
+
+ lustre_cfg_init(&lcr->lcr_cfg, cmd, bufs);
+
+ lcr->lcr_hdr.lrh_len = reclen;
+ lcr->lcr_hdr.lrh_type = OBD_CFG_REC;
+
+ RETURN(lcr);
+}
+EXPORT_SYMBOL(lustre_cfg_rec_new);
+
+void lustre_cfg_rec_free(struct llog_cfg_rec *lcr)
+{
+ ENTRY;
+ OBD_FREE(lcr, lcr->lcr_hdr.lrh_len);
+ EXIT;
}
-
-static int class_config_llog_handler(struct llog_handle * handle,
- struct llog_rec_hdr *rec, void *data)
+EXPORT_SYMBOL(lustre_cfg_rec_free);
+
+/** 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 *cfg = data;
+ struct config_llog_instance *clli = data;
int cfg_len = rec->lrh_len;
char *cfg_buf = (char*) (rec + 1);
int rc = 0;
+ ENTRY;
+
+ //class_config_dump_handler(handle, rec, data);
- if (rec->lrh_type == OBD_CFG_REC) {
- char *buf;
- struct lustre_cfg *lcfg;
- char *old_name = NULL;
- int old_len = 0;
- char *old_uuid = NULL;
- int old_uuid_len = 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;
- rc = lustre_cfg_getdata(&buf, cfg_len, cfg_buf, 1);
- if (rc)
+ 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, rc);
- lcfg = (struct lustre_cfg* ) buf;
- if (cfg && cfg->cfg_instance && lcfg->lcfg_dev_name) {
- inst_len = strlen(lcfg->lcfg_dev_name) +
- strlen(cfg->cfg_instance) + 2;
- OBD_ALLOC(inst_name, inst_len);
- if (inst_name == NULL)
- GOTO(out, rc = -ENOMEM);
- sprintf(inst_name, "%s-%s", lcfg->lcfg_dev_name,
- cfg->cfg_instance);
- old_name = lcfg->lcfg_dev_name;
- old_len = lcfg->lcfg_dev_namelen;
- lcfg->lcfg_dev_name = inst_name;
- lcfg->lcfg_dev_namelen = strlen(inst_name) + 1;
+ /* 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;
+ server_name2index(marker->cm_tgtname,
+ &clli->cfg_lwp_idx, NULL);
+ 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;
}
-
- if (cfg && lcfg->lcfg_command == LCFG_ATTACH) {
- old_uuid = lcfg->lcfg_inlbuf2;
- old_uuid_len = lcfg->lcfg_inllen2;
- lcfg->lcfg_inlbuf2 = (char*)&cfg->cfg_uuid.uuid;
- lcfg->lcfg_inllen2 = sizeof(cfg->cfg_uuid);
+ /*
+ * 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;
+ }
}
- rc = class_process_config(lcfg);
+#if defined(HAVE_SERVER_SUPPORT) && defined(__KERNEL__)
+ /* newer MDS replaces LOV/OSC with LOD/OSP */
+ {
+ char *typename = lustre_cfg_string(lcfg, 1);
+
+ if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
+ strcmp(typename, LUSTRE_LOV_NAME) == 0) &&
+ IS_MDT(s2lsi(clli->cfg_sb))) {
+ CDEBUG(D_CONFIG,
+ "For 2.x interoperability, rename obd "
+ "type from lov to lod (%s)\n",
+ s2lsi(clli->cfg_sb)->lsi_svname);
+ strcpy(typename, LUSTRE_LOD_NAME);
+ }
+ if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
+ strcmp(typename, LUSTRE_OSC_NAME) == 0) &&
+ IS_MDT(s2lsi(clli->cfg_sb))) {
+ CDEBUG(D_CONFIG,
+ "For 2.x interoperability, rename obd "
+ "type from osc to osp (%s)\n",
+ s2lsi(clli->cfg_sb)->lsi_svname);
+ strcpy(typename, LUSTRE_OSP_NAME);
+ }
+ }
+#endif
- if (old_name) {
- lcfg->lcfg_dev_name = old_name;
- lcfg->lcfg_dev_namelen = old_len;
- OBD_FREE(inst_name, inst_len);
+ 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;
+ OBD_ALLOC(inst_name, inst_len);
+ if (inst_name == NULL)
+ GOTO(out, rc = -ENOMEM);
+ sprintf(inst_name, "%s-%p",
+ lustre_cfg_string(lcfg, 0),
+ clli->cfg_instance);
+ lustre_cfg_bufs_set_string(&bufs, 0, inst_name);
+ CDEBUG(D_CONFIG, "cmd %x, instance name: %s\n",
+ lcfg->lcfg_command, inst_name);
}
-
- if (old_uuid) {
- lcfg->lcfg_inlbuf2 = old_uuid;
- lcfg->lcfg_inllen2 = old_uuid_len;
+
+ /* we override the llog's uuid for clients, to insure they
+ are unique */
+ if (clli && clli->cfg_instance != NULL &&
+ lcfg->lcfg_command == LCFG_ATTACH) {
+ lustre_cfg_bufs_set_string(&bufs, 2,
+ clli->cfg_uuid.uuid);
}
-
- lustre_cfg_freedata(buf, cfg_len);
- } else if (rec->lrh_type == PTL_CFG_REC) {
- struct portals_cfg *pcfg = (struct portals_cfg *)cfg_buf;
- if (pcfg->pcfg_command ==NAL_CMD_REGISTER_MYNID &&
- cfg->cfg_local_nid != PTL_NID_ANY) {
- pcfg->pcfg_nid = cfg->cfg_local_nid;
+ /*
+ * 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 == NULL &&
+ 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);
}
- rc = kportal_nal_cmd(pcfg);
+ lcfg_new = lustre_cfg_new(lcfg->lcfg_command, &bufs);
+ if (lcfg_new == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ 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)
+ OBD_FREE(inst_name, inst_len);
+ 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(struct llog_ctxt *ctxt, char *name,
- struct config_llog_instance *cfg)
+int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
+ char *name, struct config_llog_instance *cfg)
{
- struct llog_handle *llh;
- int rc, rc2;
- ENTRY;
+ struct llog_process_cat_data cd = {0, 0};
+ struct llog_handle *llh;
+ llog_cb_t callback;
+ int rc;
+ ENTRY;
+
+ 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, rc);
+
+ /* 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 != NULL);
+ } else {
+ callback = class_config_llog_handler;
+ }
- rc = llog_create(ctxt, &llh, NULL, name);
- if (rc)
- RETURN(rc);
+ cd.lpcd_last_idx = 0;
- rc = llog_init_handle(llh, LLOG_F_IS_PLAIN, NULL);
- if (rc)
- GOTO(parse_out, rc);
+ rc = llog_process(env, llh, callback, cfg, &cd);
- rc = llog_process(llh, class_config_llog_handler, cfg, NULL);
-parse_out:
- rc2 = llog_close(llh);
- if (rc == 0)
- rc = rc2;
+ 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);
+
+struct lcfg_type_data {
+ __u32 ltd_type;
+ char *ltd_name;
+ char *ltd_bufs[4];
+} lcfg_data_table[] = {
+ { LCFG_ATTACH, "attach", { "type", "UUID", "3", "4" } },
+ { LCFG_DETACH, "detach", { "1", "2", "3", "4" } },
+ { LCFG_SETUP, "setup", { "UUID", "node", "options", "failout" } },
+ { LCFG_CLEANUP, "cleanup", { "1", "2", "3", "4" } },
+ { LCFG_ADD_UUID, "add_uuid", { "node", "2", "3", "4" } },
+ { LCFG_DEL_UUID, "del_uuid", { "1", "2", "3", "4" } },
+ { LCFG_MOUNTOPT, "new_profile", { "name", "lov", "lmv", "4" } },
+ { LCFG_DEL_MOUNTOPT, "del_mountopt", { "1", "2", "3", "4" } , },
+ { LCFG_SET_TIMEOUT, "set_timeout", { "parameter", "2", "3", "4" } },
+ { LCFG_SET_UPCALL, "set_upcall", { "1", "2", "3", "4" } },
+ { LCFG_ADD_CONN, "add_conn", { "node", "2", "3", "4" } },
+ { LCFG_DEL_CONN, "del_conn", { "1", "2", "3", "4" } },
+ { LCFG_LOV_ADD_OBD, "add_osc", { "ost", "index", "gen", "UUID" } },
+ { LCFG_LOV_DEL_OBD, "del_osc", { "1", "2", "3", "4" } },
+ { LCFG_PARAM, "set_param", { "parameter", "value", "3", "4" } },
+ { LCFG_MARKER, "marker", { "1", "2", "3", "4" } },
+ { LCFG_LOG_START, "log_start", { "1", "2", "3", "4" } },
+ { LCFG_LOG_END, "log_end", { "1", "2", "3", "4" } },
+ { LCFG_LOV_ADD_INA, "add_osc_inactive", { "1", "2", "3", "4" } },
+ { LCFG_ADD_MDC, "add_mdc", { "mdt", "index", "gen", "UUID" } },
+ { LCFG_DEL_MDC, "del_mdc", { "1", "2", "3", "4" } },
+ { LCFG_SPTLRPC_CONF, "security", { "parameter", "2", "3", "4" } },
+ { LCFG_POOL_NEW, "new_pool", { "fsname", "pool", "3", "4" } },
+ { LCFG_POOL_ADD, "add_pool", { "fsname", "pool", "ost", "4" } },
+ { LCFG_POOL_REM, "remove_pool", { "fsname", "pool", "ost", "4" } },
+ { LCFG_POOL_DEL, "del_pool", { "fsname", "pool", "3", "4" } },
+ { LCFG_SET_LDLM_TIMEOUT, "set_ldlm_timeout",
+ { "parameter", "2", "3", "4" } },
+ { 0, NULL, { NULL, NULL, NULL, NULL } }
+};
+
+static struct lcfg_type_data *lcfg_cmd2data(__u32 cmd)
+{
+ int i = 0;
+ while (lcfg_data_table[i].ltd_type != 0) {
+ if (lcfg_data_table[i].ltd_type == cmd)
+ return &lcfg_data_table[i];
+ i++;
+ }
+ return NULL;
}
-static int class_config_dump_handler(struct llog_handle * handle,
- struct llog_rec_hdr *rec, void *data)
+/**
+ * parse config record and output dump in supplied buffer.
+ * This is separated from class_config_dump_handler() to use
+ * for ioctl needs as well
+ *
+ * Sample Output:
+ * - { event: attach, device: lustrewt-clilov, type: lov, UUID:
+ * lustrewt-clilov_UUID }
+ */
+int class_config_yaml_output(struct llog_rec_hdr *rec, char *buf, int size)
{
- int cfg_len = rec->lrh_len;
- char *cfg_buf = (char*) (rec + 1);
- int rc = 0;
+ struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
+ char *ptr = buf;
+ char *end = buf + size;
+ int rc = 0, i;
+ struct lcfg_type_data *ldata;
+
+ LASSERT(rec->lrh_type == OBD_CFG_REC);
+ rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
+ if (rc < 0)
+ return rc;
+
+ ldata = lcfg_cmd2data(lcfg->lcfg_command);
+ if (ldata == NULL)
+ return -ENOTTY;
+
+ if (lcfg->lcfg_command == LCFG_MARKER)
+ return 0;
+
+ /* form YAML entity */
+ ptr += snprintf(ptr, end - ptr, "- { event: %s", ldata->ltd_name);
+
+ 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)
+ ptr += snprintf(ptr, end - ptr, ", nid: %s("LPX64")",
+ libcfs_nid2str(lcfg->lcfg_nid),
+ lcfg->lcfg_nid);
+
+ if (LUSTRE_CFG_BUFLEN(lcfg, 0) > 0)
+ ptr += snprintf(ptr, end - ptr, ", device: %s",
+ lustre_cfg_string(lcfg, 0));
+
+ for (i = 1; i < lcfg->lcfg_bufcount; i++) {
+ if (LUSTRE_CFG_BUFLEN(lcfg, i) > 0)
+ ptr += snprintf(ptr, end - ptr, ", %s: %s",
+ ldata->ltd_bufs[i - 1],
+ lustre_cfg_string(lcfg, i));
+ }
+
+ ptr += snprintf(ptr, end - ptr, " }\n");
+ /* return consumed bytes */
+ rc = ptr - buf;
+ return rc;
+}
+
+/**
+ * parse config record and output dump in supplied buffer.
+ * This is separated from class_config_dump_handler() to use
+ * for ioctl needs as well
+ */
+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;
+
+ ENTRY;
+
+ 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)
+ ptr += snprintf(ptr, end-ptr, "nid=%s("LPX64")\n ",
+ libcfs_nid2str(lcfg->lcfg_nid),
+ 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));
+ }
+ }
+ ptr += snprintf(ptr, end - ptr, "\n");
+ /* return consumed bytes */
+ rc = ptr - buf;
+ RETURN(rc);
+}
- if (rec->lrh_type == OBD_CFG_REC) {
- char *buf;
- struct lustre_cfg *lcfg;
+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;
- rc = lustre_cfg_getdata(&buf, cfg_len, cfg_buf, 1);
- if (rc)
- GOTO(out, rc);
- lcfg = (struct lustre_cfg* ) buf;
-
- CDEBUG(D_INFO, "lcfg command: %x\n", lcfg->lcfg_command);
- if (lcfg->lcfg_dev_name)
- CDEBUG(D_INFO, " devname: %s\n",
- lcfg->lcfg_dev_name);
- if (lcfg->lcfg_flags)
- CDEBUG(D_INFO, " flags: %x\n", lcfg->lcfg_flags);
- if (lcfg->lcfg_nid)
- CDEBUG(D_INFO, " nid: "LPX64"\n",
- lcfg->lcfg_nid);
- if (lcfg->lcfg_nal)
- CDEBUG(D_INFO, " nal: %x\n", lcfg->lcfg_nal);
- if (lcfg->lcfg_num)
- CDEBUG(D_INFO, " nal: %x\n", lcfg->lcfg_num);
- if (lcfg->lcfg_inlbuf1)
- CDEBUG(D_INFO, " inlbuf1: %s\n",lcfg->lcfg_inlbuf1);
- if (lcfg->lcfg_inlbuf2)
- CDEBUG(D_INFO, " inlbuf1: %s\n",lcfg->lcfg_inlbuf2);
- if (lcfg->lcfg_inlbuf3)
- CDEBUG(D_INFO, " inlbuf1: %s\n",lcfg->lcfg_inlbuf3);
- if (lcfg->lcfg_inlbuf4)
- CDEBUG(D_INFO, " inlbuf1: %s\n",lcfg->lcfg_inlbuf4);
-
- lustre_cfg_freedata(buf, cfg_len);
- } else if (rec->lrh_type == PTL_CFG_REC) {
- struct portals_cfg *pcfg = (struct portals_cfg *)cfg_buf;
-
- CDEBUG(D_INFO, "pcfg command: %d\n", pcfg->pcfg_command);
- if (pcfg->pcfg_nal)
- CDEBUG(D_INFO, " nal: %d\n",
- pcfg->pcfg_nal);
- if (pcfg->pcfg_gw_nal)
- CDEBUG(D_INFO, " gw_nal: %d\n",
- pcfg->pcfg_gw_nal);
- if (pcfg->pcfg_nid)
- CDEBUG(D_INFO, " nid: "LPX64"\n",
- pcfg->pcfg_nid);
- if (pcfg->pcfg_nid2)
- CDEBUG(D_INFO, " nid: "LPX64"\n",
- pcfg->pcfg_nid2);
- if (pcfg->pcfg_nid3)
- CDEBUG(D_INFO, " nid: "LPX64"\n",
- pcfg->pcfg_nid3);
- if (pcfg->pcfg_misc)
- CDEBUG(D_INFO, " nid: %d\n",
- pcfg->pcfg_misc);
- if (pcfg->pcfg_id)
- CDEBUG(D_INFO, " id: %x\n",
- pcfg->pcfg_id);
- if (pcfg->pcfg_flags)
- CDEBUG(D_INFO, " flags: %x\n",
- pcfg->pcfg_flags);
+ ENTRY;
+
+ OBD_ALLOC(outstr, 256);
+ if (outstr == NULL)
+ 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;
+ }
+
+ OBD_FREE(outstr, 256);
+ RETURN(rc);
+}
+
+int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
+ char *name, struct config_llog_instance *cfg)
+{
+ struct llog_handle *llh;
+ int rc;
+
+ ENTRY;
+
+ LCONSOLE_INFO("Dumping config log %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, rc);
+
+ rc = llog_process(env, llh, class_config_dump_handler, cfg, NULL);
+parse_out:
+ llog_close(env, llh);
+
+ LCONSOLE_INFO("End config log %s\n", name);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(class_config_dump_llog);
+
+/** 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;
+ ENTRY;
+
+ 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, rc);
}
+
+ /* 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
+ */
-int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
- struct config_llog_instance *cfg)
+static unsigned
+uuid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
{
- struct llog_handle *llh;
- int rc, rc2;
- ENTRY;
+ return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
+ sizeof(((struct obd_uuid *)key)->uuid), mask);
+}
- rc = llog_create(ctxt, &llh, NULL, name);
- if (rc)
- RETURN(rc);
+static void *
+uuid_key(struct hlist_node *hnode)
+{
+ struct obd_export *exp;
- rc = llog_init_handle(llh, LLOG_F_IS_PLAIN, NULL);
- if (rc)
- GOTO(parse_out, rc);
+ exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
- rc = llog_process(llh, class_config_dump_handler, cfg, NULL);
-parse_out:
- rc2 = llog_close(llh);
- if (rc == 0)
- rc = rc2;
+ return &exp->exp_client_uuid;
+}
- RETURN(rc);
+/*
+ * 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(cfs_hash_t *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(cfs_hash_t *hs, struct hlist_node *hnode)
+{
+ struct obd_export *exp;
+
+ exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
+ class_export_put(exp);
+}
+
+static cfs_hash_ops_t 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,
+};
+
+
+/*
+ * nid<->export hash operations
+ */
+
+static unsigned
+nid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
+{
+ return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
+}
+
+static void *
+nid_key(struct hlist_node *hnode)
+{
+ struct obd_export *exp;
+
+ exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+
+ RETURN(&exp->exp_connection->c_peer.nid);
+}
+
+/*
+ * NOTE: It is impossible to find an export that is in failed
+ * state with this function
+ */
+static int
+nid_kepcmp(const void *key, struct hlist_node *hnode)
+{
+ struct obd_export *exp;
+
+ LASSERT(key);
+ exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+
+ RETURN(exp->exp_connection->c_peer.nid == *(lnet_nid_t *)key &&
+ !exp->exp_failed);
+}
+
+static void *
+nid_export_object(struct hlist_node *hnode)
+{
+ return hlist_entry(hnode, struct obd_export, exp_nid_hash);
+}
+
+static void
+nid_export_get(cfs_hash_t *hs, struct hlist_node *hnode)
+{
+ struct obd_export *exp;
+
+ exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+ class_export_get(exp);
+}
+
+static void
+nid_export_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+{
+ struct obd_export *exp;
+
+ exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
+ class_export_put(exp);
+}
+
+static cfs_hash_ops_t nid_hash_ops = {
+ .hs_hash = nid_hash,
+ .hs_key = nid_key,
+ .hs_keycmp = nid_kepcmp,
+ .hs_object = nid_export_object,
+ .hs_get = nid_export_get,
+ .hs_put_locked = nid_export_put_locked,
+};
+
+
+/*
+ * nid<->nidstats hash operations
+ */
+
+static void *
+nidstats_key(struct hlist_node *hnode)
+{
+ struct nid_stat *ns;
+
+ ns = hlist_entry(hnode, struct nid_stat, nid_hash);
+
+ return &ns->nid;
+}
+
+static int
+nidstats_keycmp(const void *key, struct hlist_node *hnode)
+{
+ return *(lnet_nid_t *)nidstats_key(hnode) == *(lnet_nid_t *)key;
+}
+
+static void *
+nidstats_object(struct hlist_node *hnode)
+{
+ return hlist_entry(hnode, struct nid_stat, nid_hash);
+}
+
+static void
+nidstats_get(cfs_hash_t *hs, struct hlist_node *hnode)
+{
+ struct nid_stat *ns;
+
+ ns = hlist_entry(hnode, struct nid_stat, nid_hash);
+ nidstat_getref(ns);
+}
+
+static void
+nidstats_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+{
+ struct nid_stat *ns;
+ ns = hlist_entry(hnode, struct nid_stat, nid_hash);
+ nidstat_putref(ns);
}
+static cfs_hash_ops_t nid_stat_hash_ops = {
+ .hs_hash = nid_hash,
+ .hs_key = nidstats_key,
+ .hs_keycmp = nidstats_keycmp,
+ .hs_object = nidstats_object,
+ .hs_get = nidstats_get,
+ .hs_put_locked = nidstats_put_locked,
+};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff