*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <obd_class.h>
#include <lprocfs_status.h>
-#include <lustre_param.h>
+#include <uapi/linux/lustre/lustre_ioctl.h>
+#include <uapi/linux/lustre/lustre_param.h>
+#include <uapi/linux/lustre/lustre_barrier_user.h>
#include "mgs_internal.h"
-/* Establish a connection to the MGS.*/
-static int mgs_connect(const struct lu_env *env,
- struct obd_export **exp, struct obd_device *obd,
- struct obd_uuid *cluuid, struct obd_connect_data *data,
- void *localdata)
+/*
+ * Regular MGS handlers
+ */
+static int mgs_connect(struct tgt_session_info *tsi)
{
- struct obd_export *lexp;
- struct lustre_handle conn = { 0 };
- int rc;
- ENTRY;
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
+ int rc;
- if (!exp || !obd || !cluuid)
- RETURN(-EINVAL);
+ ENTRY;
- rc = class_connect(&conn, obd, cluuid);
- if (rc)
- RETURN(rc);
+ CFS_FAIL_TIMEOUT(OBD_FAIL_MGS_CONNECT_NET, cfs_fail_val);
+ rc = tgt_connect(tsi);
+ if (rc)
+ RETURN(rc);
- lexp = class_conn2export(&conn);
- if (lexp == NULL)
- GOTO(out, rc = -EFAULT);
+ if (lustre_msg_get_conn_cnt(req->rq_reqmsg) > 1)
+ lustre_msg_add_op_flags(req->rq_repmsg, MSG_CONNECT_RECONNECT);
- mgs_counter_incr(lexp, LPROC_MGS_CONNECT);
+ RETURN(0);
+}
- if (data != NULL) {
- data->ocd_connect_flags &= MGS_CONNECT_SUPPORTED;
- lexp->exp_connect_flags = data->ocd_connect_flags;
- data->ocd_version = LUSTRE_VERSION_CODE;
- }
+static int mgs_disconnect(struct tgt_session_info *tsi)
+{
+ int rc;
- rc = mgs_export_stats_init(obd, lexp, localdata);
+ ENTRY;
-out:
- if (rc) {
- class_disconnect(lexp);
- } else {
- *exp = lexp;
- }
+ LASSERT(tsi->tsi_exp);
- RETURN(rc);
+ rc = tgt_disconnect(tsi);
+ if (rc)
+ RETURN(err_serious(rc));
+ RETURN(0);
}
-static int mgs_reconnect(const struct lu_env *env,
- struct obd_export *exp, struct obd_device *obd,
- struct obd_uuid *cluuid, struct obd_connect_data *data,
- void *localdata)
+static int mgs_exception(struct tgt_session_info *tsi)
{
- ENTRY;
-
- if (exp == NULL || obd == NULL || cluuid == NULL)
- RETURN(-EINVAL);
+ ENTRY;
- mgs_counter_incr(exp, LPROC_MGS_CONNECT);
+ tgt_counter_incr(tsi->tsi_exp, LPROC_MGS_EXCEPTION);
- if (data != NULL) {
- data->ocd_connect_flags &= MGS_CONNECT_SUPPORTED;
- exp->exp_connect_flags = data->ocd_connect_flags;
- data->ocd_version = LUSTRE_VERSION_CODE;
- }
+ RETURN(0);
+}
- RETURN(mgs_export_stats_init(obd, exp, localdata));
+static inline bool str_starts_with(const char *str, const char *prefix)
+{
+ return strncmp(str, prefix, strlen(prefix)) == 0;
}
-static int mgs_disconnect(struct obd_export *exp)
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
+static int mgs_set_info(struct tgt_session_info *tsi)
{
- int rc;
- ENTRY;
+ struct mgs_thread_info *mgi;
+ struct mgs_send_param *msp, *rep_msp;
+ struct lustre_cfg *lcfg;
+ size_t param_len;
+ char *s;
+ int rc;
- LASSERT(exp);
+ ENTRY;
- mgs_fsc_cleanup(exp);
+ mgi = mgs_env_info(tsi->tsi_env);
+ if (IS_ERR(mgi))
+ RETURN(err_serious(PTR_ERR(mgi)));
- class_export_get(exp);
- mgs_counter_incr(exp, LPROC_MGS_DISCONNECT);
+ msp = req_capsule_client_get(tsi->tsi_pill, &RMF_MGS_SEND_PARAM);
+ if (msp == NULL)
+ RETURN(err_serious(-EFAULT));
- rc = server_disconnect_export(exp);
- class_export_put(exp);
- RETURN(rc);
+ param_len = strnlen(msp->mgs_param, sizeof(msp->mgs_param));
+ if (param_len == 0 || param_len == sizeof(msp->mgs_param))
+ RETURN(-EINVAL);
+
+ /* We only allow '*.lov.stripe{size,count,offset}=*' from an RPC. */
+ s = strchr(msp->mgs_param, '.');
+ if (s == NULL)
+ RETURN(-EINVAL);
+
+ if (!str_starts_with(s + 1, "lov.stripesize=") &&
+ !str_starts_with(s + 1, "lov.stripecount=") &&
+ !str_starts_with(s + 1, "lov.stripeoffset="))
+ RETURN(-EINVAL);
+
+ /* Construct lustre_cfg structure to pass to function mgs_set_param */
+ lustre_cfg_bufs_reset(&mgi->mgi_bufs, NULL);
+ lustre_cfg_bufs_set_string(&mgi->mgi_bufs, 1, msp->mgs_param);
+ OBD_ALLOC(lcfg, lustre_cfg_len(mgi->mgi_bufs.lcfg_bufcount,
+ mgi->mgi_bufs.lcfg_buflen));
+ if (!lcfg)
+ RETURN(-ENOMEM);
+ lustre_cfg_init(lcfg, LCFG_PARAM, &mgi->mgi_bufs);
+
+ rc = mgs_set_param(tsi->tsi_env, exp2mgs_dev(tsi->tsi_exp), lcfg);
+ if (rc) {
+ LCONSOLE_WARN("%s: Unable to set parameter %s: %d\n",
+ tgt_name(tsi->tsi_tgt), msp->mgs_param, rc);
+ GOTO(out_cfg, rc);
+ }
+
+ /* send back the whole msp in the reply */
+ rep_msp = req_capsule_server_get(tsi->tsi_pill, &RMF_MGS_SEND_PARAM);
+ *rep_msp = *msp;
+ EXIT;
+out_cfg:
+ OBD_FREE(lcfg, lustre_cfg_len(lcfg->lcfg_bufcount, lcfg->lcfg_buflens));
+ return rc;
}
+#endif
-static int mgs_handle(struct ptlrpc_request *req);
+enum ast_type {
+ AST_CONFIG = 1,
+ AST_PARAMS = 2,
+ AST_IR = 3,
+ AST_BARRIER = 4,
+};
-static int mgs_completion_ast_config(struct ldlm_lock *lock, __u64 flags,
- void *cbdata)
+static int mgs_completion_ast_generic(struct ldlm_lock *lock, __u64 flags,
+ void *cbdata, enum ast_type type)
{
ENTRY;
- if (!(flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED |
- LDLM_FL_BLOCK_CONV))) {
- struct fs_db *fsdb;
+ if (!(flags & LDLM_FL_BLOCKED_MASK)) {
+ struct fs_db *fsdb;
/* l_ast_data is used as a marker to avoid cancel ldlm lock
* twice. See LU-2317. */
if (fsdb != NULL) {
struct lustre_handle lockh;
- /* clear the bit before lock put */
- clear_bit(FSDB_REVOKING_LOCK, &fsdb->fsdb_flags);
+ switch(type) {
+ case AST_CONFIG:
+ /* clear the bit before lock put */
+ clear_bit(FSDB_REVOKING_LOCK,
+ &fsdb->fsdb_flags);
+ break;
+ case AST_PARAMS:
+ clear_bit(FSDB_REVOKING_PARAMS,
+ &fsdb->fsdb_flags);
+ break;
+ case AST_IR:
+ mgs_ir_notify_complete(fsdb);
+ break;
+ case AST_BARRIER:
+ break;
+ default:
+ LBUG();
+ }
ldlm_lock2handle(lock, &lockh);
ldlm_lock_decref_and_cancel(&lockh, LCK_EX);
RETURN(ldlm_completion_ast(lock, flags, cbdata));
}
-static int mgs_completion_ast_ir(struct ldlm_lock *lock, __u64 flags,
- void *cbdata)
+static int mgs_completion_ast_config(struct ldlm_lock *lock, __u64 flags,
+ void *cbdata)
{
- ENTRY;
-
- if (!(flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED |
- LDLM_FL_BLOCK_CONV))) {
- struct fs_db *fsdb;
-
- /* l_ast_data is used as a marker to avoid cancel ldlm lock
- * twice. See LU-1259. */
- lock_res_and_lock(lock);
- fsdb = (struct fs_db *)lock->l_ast_data;
- lock->l_ast_data = NULL;
- unlock_res_and_lock(lock);
-
- if (fsdb != NULL) {
- struct lustre_handle lockh;
+ return mgs_completion_ast_generic(lock, flags, cbdata, AST_CONFIG);
+}
- mgs_ir_notify_complete(fsdb);
+static int mgs_completion_ast_params(struct ldlm_lock *lock, __u64 flags,
+ void *cbdata)
+{
+ return mgs_completion_ast_generic(lock, flags, cbdata, AST_PARAMS);
+}
- ldlm_lock2handle(lock, &lockh);
- ldlm_lock_decref_and_cancel(&lockh, LCK_EX);
- }
- }
+static int mgs_completion_ast_ir(struct ldlm_lock *lock, __u64 flags,
+ void *cbdata)
+{
+ return mgs_completion_ast_generic(lock, flags, cbdata, AST_IR);
+}
- RETURN(ldlm_completion_ast(lock, flags, cbdata));
+static int mgs_completion_ast_barrier(struct ldlm_lock *lock, __u64 flags,
+ void *cbdata)
+{
+ return mgs_completion_ast_generic(lock, flags, cbdata, AST_BARRIER);
}
void mgs_revoke_lock(struct mgs_device *mgs, struct fs_db *fsdb, int type)
{
- ldlm_completion_callback cp = NULL;
- struct lustre_handle lockh = { 0 };
- struct ldlm_res_id res_id;
+ ldlm_completion_callback cp = NULL;
+ struct lustre_handle lockh = {
+ .cookie = 0,
+ };
+ struct ldlm_res_id res_id;
__u64 flags = LDLM_FL_ATOMIC_CB;
- int rc;
- ENTRY;
-
- LASSERT(fsdb->fsdb_name[0] != '\0');
- rc = mgc_fsname2resid(fsdb->fsdb_name, &res_id, type);
- LASSERT(rc == 0);
+ int rc;
+ ENTRY;
- switch (type) {
- case CONFIG_T_CONFIG:
- cp = mgs_completion_ast_config;
+ LASSERT(fsdb->fsdb_name[0] != '\0');
+ rc = mgc_fsname2resid(fsdb->fsdb_name, &res_id, type);
+ LASSERT(rc == 0);
+ switch (type) {
+ case CONFIG_T_CONFIG:
+ case CONFIG_T_NODEMAP:
+ cp = mgs_completion_ast_config;
if (test_and_set_bit(FSDB_REVOKING_LOCK, &fsdb->fsdb_flags))
- rc = -EALREADY;
- break;
- case CONFIG_T_RECOVER:
- cp = mgs_completion_ast_ir;
- default:
- break;
- }
+ rc = -EALREADY;
+ break;
+ case CONFIG_T_PARAMS:
+ cp = mgs_completion_ast_params;
+ if (test_and_set_bit(FSDB_REVOKING_PARAMS, &fsdb->fsdb_flags))
+ rc = -EALREADY;
+ break;
+ case CONFIG_T_RECOVER:
+ cp = mgs_completion_ast_ir;
+ break;
+ case CONFIG_T_BARRIER:
+ cp = mgs_completion_ast_barrier;
+ break;
+ default:
+ break;
+ }
- if (!rc) {
- LASSERT(cp != NULL);
- rc = ldlm_cli_enqueue_local(mgs->mgs_obd->obd_namespace,
+ if (!rc) {
+ LASSERT(cp != NULL);
+ rc = ldlm_cli_enqueue_local(NULL, mgs->mgs_obd->obd_namespace,
&res_id, LDLM_PLAIN, NULL, LCK_EX,
&flags, ldlm_blocking_ast, cp,
NULL, fsdb, 0, LVB_T_NONE, NULL,
&lockh);
- if (rc != ELDLM_OK) {
- CERROR("can't take cfg lock for "LPX64"/"LPX64"(%d)\n",
- le64_to_cpu(res_id.name[0]),
- le64_to_cpu(res_id.name[1]), rc);
+ if (rc != ELDLM_OK) {
+ CERROR("%s: can't take cfg lock for %#llx/%#llx : rc = %d\n",
+ mgs->mgs_obd->obd_name,
+ le64_to_cpu(res_id.name[0]),
+ le64_to_cpu(res_id.name[1]), rc);
- if (type == CONFIG_T_CONFIG)
+ if (type == CONFIG_T_CONFIG)
clear_bit(FSDB_REVOKING_LOCK,
- &fsdb->fsdb_flags);
- }
- /* lock has been cancelled in completion_ast. */
- }
+ &fsdb->fsdb_flags);
+
+ if (type == CONFIG_T_PARAMS)
+ clear_bit(FSDB_REVOKING_PARAMS,
+ &fsdb->fsdb_flags);
+ }
+ /* lock has been cancelled in completion_ast. */
+ }
- RETURN_EXIT;
+ RETURN_EXIT;
}
/* rc=0 means ok
rc = 1;
} else {
/* Index is correctly marked as used */
-
- /* If the logs don't contain the mti_nids then add
- them as failover nids */
- rc = mgs_check_failnid(env, mgs, mti);
+ rc = 0;
}
RETURN(rc);
}
/* Called whenever a target starts up. Flags indicate first connect, etc. */
-static int mgs_handle_target_reg(struct ptlrpc_request *req)
+static int mgs_target_reg(struct tgt_session_info *tsi)
{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct mgs_device *mgs = exp2mgs_dev(req->rq_export);
- struct lu_env *env = req->rq_svc_thread->t_env;
- struct mgs_target_info *mti, *rep_mti;
- struct fs_db *fsdb;
- int opc;
- int rc = 0;
- ENTRY;
+ struct obd_device *obd = tsi->tsi_exp->exp_obd;
+ struct mgs_device *mgs = exp2mgs_dev(tsi->tsi_exp);
+ struct mgs_target_info *mti, *rep_mti;
+ struct fs_db *b_fsdb = NULL; /* barrier fsdb */
+ struct fs_db *c_fsdb = NULL; /* config fsdb */
+ char barrier_name[20];
+ int opc;
+ int rc = 0;
- mgs_counter_incr(req->rq_export, LPROC_MGS_TARGET_REG);
+ ENTRY;
- mti = req_capsule_client_get(&req->rq_pill, &RMF_MGS_TARGET_INFO);
+ rc = lu_env_refill((struct lu_env *)tsi->tsi_env);
+ if (rc)
+ return err_serious(rc);
- opc = mti->mti_flags & LDD_F_OPC_MASK;
- if (opc == LDD_F_OPC_READY) {
- CDEBUG(D_MGS, "fs: %s index: %d is ready to reconnect.\n",
- mti->mti_fsname, mti->mti_stripe_index);
- rc = mgs_ir_update(env, mgs, mti);
- if (rc) {
- LASSERT(!(mti->mti_flags & LDD_F_IR_CAPABLE));
- CERROR("Update IR return with %d(ignore and IR "
- "disabled)\n", rc);
- }
- GOTO(out_nolock, rc);
- }
+ tgt_counter_incr(tsi->tsi_exp, LPROC_MGS_TARGET_REG);
- /* Do not support unregistering right now. */
- if (opc != LDD_F_OPC_REG)
- GOTO(out_nolock, rc = -EINVAL);
+ mti = req_capsule_client_get(tsi->tsi_pill, &RMF_MGS_TARGET_INFO);
+ if (mti == NULL) {
+ DEBUG_REQ(D_HA, tgt_ses_req(tsi), "no mgs_send_param");
+ RETURN(err_serious(-EFAULT));
+ }
- CDEBUG(D_MGS, "fs: %s index: %d is registered to MGS.\n",
- mti->mti_fsname, mti->mti_stripe_index);
+ down_read(&mgs->mgs_barrier_rwsem);
- if (mti->mti_flags & LDD_F_NEED_INDEX)
- mti->mti_flags |= LDD_F_WRITECONF;
+ if (OCD_HAS_FLAG(&tgt_ses_req(tsi)->rq_export->exp_connect_data,
+ IMP_RECOV))
+ opc = mti->mti_flags & LDD_F_OPC_MASK;
+ else
+ opc = LDD_F_OPC_REG;
+
+ if (opc == LDD_F_OPC_READY) {
+ CDEBUG(D_MGS, "fs: %s index: %d is ready to reconnect.\n",
+ mti->mti_fsname, mti->mti_stripe_index);
+ rc = mgs_ir_update(tsi->tsi_env, mgs, mti);
+ if (rc) {
+ LASSERT(!(mti->mti_flags & LDD_F_IR_CAPABLE));
+ CERROR("%s: Update IR return failure: rc = %d\n",
+ mti->mti_fsname, rc);
+ }
+
+ GOTO(out_norevoke, rc);
+ }
+
+ /* Do not support unregistering right now. */
+ if (opc != LDD_F_OPC_REG)
+ GOTO(out_norevoke, rc = -EINVAL);
+
+ snprintf(barrier_name, sizeof(barrier_name) - 1, "%s-%s",
+ mti->mti_fsname, BARRIER_FILENAME);
+ rc = mgs_find_or_make_fsdb(tsi->tsi_env, mgs, barrier_name, &b_fsdb);
+ if (rc) {
+ CERROR("%s: Can't get db for %s: rc = %d\n",
+ mti->mti_fsname, barrier_name, rc);
+
+ GOTO(out_norevoke, rc);
+ }
- if (!(mti->mti_flags & (LDD_F_WRITECONF | LDD_F_UPGRADE14 |
- LDD_F_UPDATE))) {
- /* We're just here as a startup ping. */
- CDEBUG(D_MGS, "Server %s is running on %s\n",
- mti->mti_svname, obd_export_nid2str(req->rq_export));
- rc = mgs_check_target(env, mgs, mti);
- /* above will set appropriate mti flags */
- if (rc <= 0)
- /* Nothing wrong, or fatal error */
- GOTO(out_nolock, rc);
+ CDEBUG(D_MGS, "fs: %s index: %d is registered to MGS.\n",
+ mti->mti_fsname, mti->mti_stripe_index);
+
+ if (mti->mti_flags & LDD_F_SV_TYPE_MDT) {
+ if (b_fsdb->fsdb_barrier_status == BS_FREEZING_P1 ||
+ b_fsdb->fsdb_barrier_status == BS_FREEZING_P2 ||
+ b_fsdb->fsdb_barrier_status == BS_FROZEN) {
+ LCONSOLE_WARN("%s: the system is in barrier, refuse "
+ "the connection from MDT %s temporary\n",
+ obd->obd_name, mti->mti_svname);
+
+ GOTO(out_norevoke, rc = -EBUSY);
+ }
+
+ if (!(exp_connect_flags(tsi->tsi_exp) & OBD_CONNECT_BARRIER) &&
+ !b_fsdb->fsdb_barrier_disabled) {
+ LCONSOLE_WARN("%s: the MDT %s does not support write "
+ "barrier, so disable barrier on the "
+ "whole system.\n",
+ obd->obd_name, mti->mti_svname);
+
+ b_fsdb->fsdb_barrier_disabled = 1;
+ }
+ }
+
+ if (mti->mti_flags & LDD_F_NEED_INDEX)
+ mti->mti_flags |= LDD_F_WRITECONF;
+
+ if (!(mti->mti_flags & (LDD_F_WRITECONF | LDD_F_UPDATE))) {
+ /* We're just here as a startup ping. */
+ CDEBUG(D_MGS, "Server %s is running on %s\n",
+ mti->mti_svname, obd_export_nid2str(tsi->tsi_exp));
+ rc = mgs_check_target(tsi->tsi_env, mgs, mti);
+ /* above will set appropriate mti flags */
+ if (rc <= 0)
+ /* Nothing wrong, or fatal error */
+ GOTO(out_norevoke, rc);
} else if (!(mti->mti_flags & LDD_F_NO_PRIMNODE)) {
rc = mgs_check_failover_reg(mti);
if (rc)
- GOTO(out_nolock, rc);
- }
+ GOTO(out_norevoke, rc);
+ }
- OBD_FAIL_TIMEOUT(OBD_FAIL_MGS_PAUSE_TARGET_REG, 10);
-
- if (mti->mti_flags & LDD_F_WRITECONF) {
- if (mti->mti_flags & LDD_F_SV_TYPE_MDT &&
- mti->mti_stripe_index == 0) {
- rc = mgs_erase_logs(env, mgs, mti->mti_fsname);
- LCONSOLE_WARN("%s: Logs for fs %s were removed by user "
- "request. All servers must be restarted "
- "in order to regenerate the logs."
- "\n", obd->obd_name, mti->mti_fsname);
- } else if (mti->mti_flags &
- (LDD_F_SV_TYPE_OST | LDD_F_SV_TYPE_MDT)) {
- rc = mgs_erase_log(env, mgs, mti->mti_svname);
- LCONSOLE_WARN("%s: Regenerating %s log by user "
- "request.\n",
- obd->obd_name, mti->mti_svname);
- }
- mti->mti_flags |= LDD_F_UPDATE;
- /* Erased logs means start from scratch. */
- mti->mti_flags &= ~LDD_F_UPGRADE14;
- if (rc)
- GOTO(out_nolock, rc);
- }
+ OBD_FAIL_TIMEOUT(OBD_FAIL_MGS_PAUSE_TARGET_REG, 10);
+
+ if (mti->mti_flags & LDD_F_WRITECONF) {
+ if (mti->mti_flags & LDD_F_SV_TYPE_MDT &&
+ mti->mti_stripe_index == 0) {
+ mgs_put_fsdb(mgs, b_fsdb);
+ b_fsdb = NULL;
+ rc = mgs_erase_logs(tsi->tsi_env, mgs,
+ mti->mti_fsname);
+ LCONSOLE_WARN("%s: Logs for fs %s were removed by user "
+ "request. All servers must be restarted "
+ "in order to regenerate the logs: rc = %d"
+ "\n", obd->obd_name, mti->mti_fsname, rc);
+ if (rc && rc != -ENOENT)
+ GOTO(out_norevoke, rc);
+
+ rc = mgs_find_or_make_fsdb(tsi->tsi_env, mgs,
+ barrier_name, &b_fsdb);
+ if (rc) {
+ CERROR("Can't get db for %s: %d\n",
+ barrier_name, rc);
+
+ GOTO(out_norevoke, rc);
+ }
+
+ if (!(exp_connect_flags(tsi->tsi_exp) &
+ OBD_CONNECT_BARRIER)) {
+ LCONSOLE_WARN("%s: the MDT %s does not support "
+ "write barrier, disable barrier "
+ "on the whole system.\n",
+ obd->obd_name, mti->mti_svname);
+
+ b_fsdb->fsdb_barrier_disabled = 1;
+ }
+ } else if (mti->mti_flags &
+ (LDD_F_SV_TYPE_OST | LDD_F_SV_TYPE_MDT)) {
+ rc = mgs_erase_log(tsi->tsi_env, mgs, mti->mti_svname);
+ LCONSOLE_WARN("%s: Regenerating %s log by user "
+ "request: rc = %d\n",
+ obd->obd_name, mti->mti_svname, rc);
+ if (rc)
+ GOTO(out_norevoke, rc);
+ }
- rc = mgs_find_or_make_fsdb(env, mgs, mti->mti_fsname, &fsdb);
- if (rc) {
- CERROR("Can't get db for %s: %d\n", mti->mti_fsname, rc);
- GOTO(out_nolock, rc);
- }
+ mti->mti_flags |= LDD_F_UPDATE;
+ }
- /*
- * Log writing contention is handled by the fsdb_mutex.
- *
- * It should be alright if someone was reading while we were
- * updating the logs - if we revoke at the end they will just update
- * from where they left off.
- */
+ rc = mgs_find_or_make_fsdb(tsi->tsi_env, mgs, mti->mti_fsname, &c_fsdb);
+ if (rc) {
+ CERROR("Can't get db for %s: %d\n", mti->mti_fsname, rc);
- if (mti->mti_flags & LDD_F_UPGRADE14) {
- CERROR("Can't upgrade from 1.4 (%d)\n", rc);
- GOTO(out, rc);
+ GOTO(out_norevoke, rc);
}
+ /*
+ * Log writing contention is handled by the fsdb_mutex.
+ *
+ * It should be alright if someone was reading while we were
+ * updating the logs - if we revoke at the end they will just update
+ * from where they left off.
+ */
if (mti->mti_flags & LDD_F_UPDATE) {
CDEBUG(D_MGS, "updating %s, index=%d\n", mti->mti_svname,
mti->mti_stripe_index);
/* create or update the target log
and update the client/mdt logs */
- rc = mgs_write_log_target(env, mgs, mti, fsdb);
+ rc = mgs_write_log_target(tsi->tsi_env, mgs, mti, c_fsdb);
if (rc) {
CERROR("Failed to write %s log (%d)\n",
mti->mti_svname, rc);
GOTO(out, rc);
}
- mti->mti_flags &= ~(LDD_F_VIRGIN | LDD_F_UPDATE |
- LDD_F_NEED_INDEX | LDD_F_WRITECONF |
- LDD_F_UPGRADE14);
- mti->mti_flags |= LDD_F_REWRITE_LDD;
- }
-
-out:
- mgs_revoke_lock(mgs, fsdb, CONFIG_T_CONFIG);
-
-out_nolock:
- CDEBUG(D_MGS, "replying with %s, index=%d, rc=%d\n", mti->mti_svname,
- mti->mti_stripe_index, rc);
- req->rq_status = rc;
- if (rc)
- /* we need an error flag to tell the target what's going on,
- * instead of just doing it by error code only. */
- mti->mti_flags |= LDD_F_ERROR;
-
- rc = req_capsule_server_pack(&req->rq_pill);
- if (rc)
- RETURN(rc);
-
- /* send back the whole mti in the reply */
- rep_mti = req_capsule_server_get(&req->rq_pill, &RMF_MGS_TARGET_INFO);
- *rep_mti = *mti;
-
- /* Flush logs to disk */
- dt_sync(req->rq_svc_thread->t_env, mgs->mgs_bottom);
- RETURN(rc);
-}
-
-static int mgs_set_info_rpc(struct ptlrpc_request *req)
-{
- struct mgs_device *mgs = exp2mgs_dev(req->rq_export);
- struct lu_env *env = req->rq_svc_thread->t_env;
- struct mgs_send_param *msp, *rep_msp;
- struct mgs_thread_info *mgi = mgs_env_info(env);
- int rc;
- struct lustre_cfg *lcfg;
- ENTRY;
-
- msp = req_capsule_client_get(&req->rq_pill, &RMF_MGS_SEND_PARAM);
- LASSERT(msp);
-
- /* Construct lustre_cfg structure to pass to function mgs_setparam */
- lustre_cfg_bufs_reset(&mgi->mgi_bufs, NULL);
- lustre_cfg_bufs_set_string(&mgi->mgi_bufs, 1, msp->mgs_param);
- lcfg = lustre_cfg_new(LCFG_PARAM, &mgi->mgi_bufs);
- if (IS_ERR(lcfg))
- GOTO(out, rc = PTR_ERR(lcfg));
- rc = mgs_setparam(env, mgs, lcfg, mgi->mgi_fsname);
- if (rc) {
- CERROR("Error %d in setting the parameter %s for fs %s\n",
- rc, msp->mgs_param, mgi->mgi_fsname);
- GOTO(out_cfg, rc);
+ mti->mti_flags &= ~(LDD_F_VIRGIN | LDD_F_UPDATE |
+ LDD_F_NEED_INDEX | LDD_F_WRITECONF);
+ mti->mti_flags |= LDD_F_REWRITE_LDD;
}
- rc = req_capsule_server_pack(&req->rq_pill);
- if (rc == 0) {
- rep_msp = req_capsule_server_get(&req->rq_pill, &RMF_MGS_SEND_PARAM);
- rep_msp = msp;
- }
-out_cfg:
- lustre_cfg_free(lcfg);
out:
- RETURN(rc);
-}
-
-static int mgs_config_read(struct ptlrpc_request *req)
-{
- struct mgs_config_body *body;
- int rc;
- ENTRY;
-
- body = req_capsule_client_get(&req->rq_pill, &RMF_MGS_CONFIG_BODY);
- if (body == NULL)
- RETURN(-EINVAL);
-
- switch (body->mcb_type) {
- case CONFIG_T_RECOVER:
- rc = mgs_get_ir_logs(req);
- break;
-
- case CONFIG_T_CONFIG:
- rc = -ENOTSUPP;
- break;
-
- default:
- rc = -EINVAL;
- break;
- }
-
- RETURN(rc);
-}
-
-/*
- * similar as in ost_connect_check_sptlrpc()
- */
-static int mgs_connect_check_sptlrpc(struct ptlrpc_request *req)
-{
- struct obd_export *exp = req->rq_export;
- struct mgs_device *mgs = exp2mgs_dev(req->rq_export);
- struct lu_env *env = req->rq_svc_thread->t_env;
- struct fs_db *fsdb;
- struct sptlrpc_flavor flvr;
- int rc = 0;
-
- if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
- rc = mgs_find_or_make_fsdb(env, mgs, MGSSELF_NAME, &fsdb);
- if (rc)
- return rc;
-
- mutex_lock(&fsdb->fsdb_mutex);
- if (sptlrpc_rule_set_choose(&fsdb->fsdb_srpc_gen,
- LUSTRE_SP_MGC, LUSTRE_SP_MGS,
- req->rq_peer.nid,
- &flvr) == 0) {
- /* by defualt allow any flavors */
- flvr.sf_rpc = SPTLRPC_FLVR_ANY;
+ mgs_revoke_lock(mgs, c_fsdb, CONFIG_T_CONFIG);
+
+out_norevoke:
+ if (!rc && mti->mti_flags & LDD_F_SV_TYPE_MDT && b_fsdb) {
+ if (!c_fsdb) {
+ rc = mgs_find_or_make_fsdb(tsi->tsi_env, mgs,
+ mti->mti_fsname, &c_fsdb);
+ if (rc)
+ CERROR("Fail to get db for %s: %d\n",
+ mti->mti_fsname, rc);
}
- mutex_unlock(&fsdb->fsdb_mutex);
-
- spin_lock(&exp->exp_lock);
-
- exp->exp_sp_peer = req->rq_sp_from;
- exp->exp_flvr = flvr;
- if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY &&
- exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) {
- CERROR("invalid rpc flavor %x, expect %x, from %s\n",
- req->rq_flvr.sf_rpc, exp->exp_flvr.sf_rpc,
- libcfs_nid2str(req->rq_peer.nid));
- rc = -EACCES;
- }
+ if (c_fsdb) {
+ memcpy(b_fsdb->fsdb_mdt_index_map,
+ c_fsdb->fsdb_mdt_index_map, INDEX_MAP_SIZE);
+ b_fsdb->fsdb_mdt_count = c_fsdb->fsdb_mdt_count;
+ }
+ }
- spin_unlock(&exp->exp_lock);
- } else {
- if (exp->exp_sp_peer != req->rq_sp_from) {
- CERROR("RPC source %s doesn't match %s\n",
- sptlrpc_part2name(req->rq_sp_from),
- sptlrpc_part2name(exp->exp_sp_peer));
- rc = -EACCES;
- } else {
- rc = sptlrpc_target_export_check(exp, req);
- }
- }
+ up_read(&mgs->mgs_barrier_rwsem);
- return rc;
+ CDEBUG(D_MGS, "replying with %s, index=%d, rc=%d\n", mti->mti_svname,
+ mti->mti_stripe_index, rc);
+ /* An error flag is set in the mti reply rather than an error code */
+ if (rc)
+ mti->mti_flags |= LDD_F_ERROR;
+
+ /* send back the whole mti in the reply */
+ rep_mti = req_capsule_server_get(tsi->tsi_pill, &RMF_MGS_TARGET_INFO);
+ *rep_mti = *mti;
+
+ /* Flush logs to disk */
+ dt_sync(tsi->tsi_env, mgs->mgs_bottom);
+ if (b_fsdb)
+ mgs_put_fsdb(mgs, b_fsdb);
+ if (c_fsdb)
+ mgs_put_fsdb(mgs, c_fsdb);
+ RETURN(rc);
}
/* Called whenever a target cleans up. */
-/* XXX - Currently unused */
-static int mgs_handle_target_del(struct ptlrpc_request *req)
+static int mgs_target_del(struct tgt_session_info *tsi)
{
- ENTRY;
- mgs_counter_incr(req->rq_export, LPROC_MGS_TARGET_DEL);
- RETURN(0);
-}
+ ENTRY;
-/* XXX - Currently unused */
-static int mgs_handle_exception(struct ptlrpc_request *req)
-{
- ENTRY;
- mgs_counter_incr(req->rq_export, LPROC_MGS_EXCEPTION);
- RETURN(0);
+ tgt_counter_incr(tsi->tsi_exp, LPROC_MGS_TARGET_DEL);
+
+ RETURN(0);
}
-/*
- * For old clients there is no direct way of knowing which filesystems
- * a client is operating at the MGS side. But we need to pick up those
- * clients so that the MGS can mark the corresponding filesystem as
- * non-IR capable because old clients are not ready to be notified.
- *
- * This is why we have this _hack_ function. We detect the filesystem's
- * name by hacking llog operation which is currently used by the clients
- * to fetch configuration logs. At present this is fine because this is
- * the ONLY llog operation between mgc and the MGS.
- *
- * If extra llog operation is going to be added, this function needs fixing.
- *
- * If releases prior than 2.0 are not supported, we can remove this function.
- */
-static int mgs_handle_fslog_hack(struct ptlrpc_request *req)
+static int mgs_config_read(struct tgt_session_info *tsi)
{
- char *logname;
- char fsname[16];
- char *ptr;
- int rc;
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
+ struct mgs_config_body *body;
+ int rc;
- /* XXX: We suppose that llog at mgs is only used for
- * fetching file system log */
- logname = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
- if (logname == NULL) {
- CERROR("No logname, is llog on MGS used for something else?\n");
- return -EINVAL;
- }
+ ENTRY;
- ptr = strchr(logname, '-');
- rc = (int)(ptr - logname);
- if (ptr == NULL || rc >= sizeof(fsname)) {
- CERROR("Invalid logname received: %s\n", logname);
- return -EINVAL;
- }
+ body = req_capsule_client_get(tsi->tsi_pill, &RMF_MGS_CONFIG_BODY);
+ if (body == NULL) {
+ DEBUG_REQ(D_HA, req, "no mgs_config_body");
+ RETURN(err_serious(-EFAULT));
+ }
- strncpy(fsname, logname, rc);
- fsname[rc] = 0;
- rc = mgs_fsc_attach(req->rq_svc_thread->t_env, req->rq_export, fsname);
- if (rc < 0 && rc != -EEXIST)
- CERROR("add fs client %s returns %d\n", fsname, rc);
+ switch (body->mcb_type) {
+ case CONFIG_T_RECOVER:
+ rc = mgs_get_ir_logs(req);
+ break;
+ case CONFIG_T_NODEMAP:
+ rc = nodemap_get_config_req(req->rq_export->exp_obd, req);
+ break;
+ case CONFIG_T_CONFIG:
+ rc = -EOPNOTSUPP;
+ break;
+ default:
+ rc = -EINVAL;
+ break;
+ }
- return rc;
+ RETURN(rc);
}
-/* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */
-int mgs_handle(struct ptlrpc_request *req)
+static int mgs_llog_open(struct tgt_session_info *tsi)
{
- int fail = OBD_FAIL_MGS_ALL_REPLY_NET;
- int opc, rc = 0;
- ENTRY;
-
- req_capsule_init(&req->rq_pill, req, RCL_SERVER);
- CFS_FAIL_TIMEOUT_MS(OBD_FAIL_MGS_PAUSE_REQ, cfs_fail_val);
- if (CFS_FAIL_CHECK(OBD_FAIL_MGS_ALL_REQUEST_NET))
- RETURN(0);
-
- LASSERT(current->journal_info == NULL);
- opc = lustre_msg_get_opc(req->rq_reqmsg);
-
- if (opc == SEC_CTX_INIT ||
- opc == SEC_CTX_INIT_CONT ||
- opc == SEC_CTX_FINI)
- GOTO(out, rc = 0);
-
- if (opc != MGS_CONNECT) {
- if (!class_connected_export(req->rq_export)) {
- DEBUG_REQ(D_MGS, req, "operation on unconnected MGS\n");
- req->rq_status = -ENOTCONN;
- GOTO(out, rc = -ENOTCONN);
- }
- }
-
- switch (opc) {
- case MGS_CONNECT:
- DEBUG_REQ(D_MGS, req, "connect");
- /* MGS and MDS have same request format for connect */
- req_capsule_set(&req->rq_pill, &RQF_MDS_CONNECT);
- rc = target_handle_connect(req);
- if (rc == 0)
- rc = mgs_connect_check_sptlrpc(req);
-
- if (!rc && (lustre_msg_get_conn_cnt(req->rq_reqmsg) > 1))
- /* Make clients trying to reconnect after a MGS restart
- happy; also requires obd_replayable */
- lustre_msg_add_op_flags(req->rq_repmsg,
- MSG_CONNECT_RECONNECT);
- break;
- case MGS_DISCONNECT:
- DEBUG_REQ(D_MGS, req, "disconnect");
- /* MGS and MDS have same request format for disconnect */
- req_capsule_set(&req->rq_pill, &RQF_MDS_DISCONNECT);
- rc = target_handle_disconnect(req);
- req->rq_status = rc; /* superfluous? */
- break;
- case MGS_EXCEPTION:
- DEBUG_REQ(D_MGS, req, "exception");
- rc = mgs_handle_exception(req);
- break;
- case MGS_TARGET_REG:
- DEBUG_REQ(D_MGS, req, "target add");
- req_capsule_set(&req->rq_pill, &RQF_MGS_TARGET_REG);
- rc = mgs_handle_target_reg(req);
- break;
- case MGS_TARGET_DEL:
- DEBUG_REQ(D_MGS, req, "target del");
- rc = mgs_handle_target_del(req);
- break;
- case MGS_SET_INFO:
- DEBUG_REQ(D_MGS, req, "set_info");
- req_capsule_set(&req->rq_pill, &RQF_MGS_SET_INFO);
- rc = mgs_set_info_rpc(req);
- break;
- case MGS_CONFIG_READ:
- DEBUG_REQ(D_MGS, req, "read config");
- req_capsule_set(&req->rq_pill, &RQF_MGS_CONFIG_READ);
- rc = mgs_config_read(req);
- break;
- case LDLM_ENQUEUE:
- DEBUG_REQ(D_MGS, req, "enqueue");
- req_capsule_set(&req->rq_pill, &RQF_LDLM_ENQUEUE);
- rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast,
- ldlm_server_blocking_ast, NULL);
- break;
- case LDLM_BL_CALLBACK:
- case LDLM_CP_CALLBACK:
- DEBUG_REQ(D_MGS, req, "callback");
- CERROR("callbacks should not happen on MGS\n");
- LBUG();
- break;
-
- case OBD_PING:
- DEBUG_REQ(D_INFO, req, "ping");
- req_capsule_set(&req->rq_pill, &RQF_OBD_PING);
- rc = target_handle_ping(req);
- break;
- case OBD_LOG_CANCEL:
- DEBUG_REQ(D_MGS, req, "log cancel");
- rc = -ENOTSUPP; /* la la la */
- break;
+ struct mgs_thread_info *mgi;
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
+ char *logname;
+ int rc;
- case LLOG_ORIGIN_HANDLE_CREATE:
- DEBUG_REQ(D_MGS, req, "llog_open");
- req_capsule_set(&req->rq_pill, &RQF_LLOG_ORIGIN_HANDLE_CREATE);
- rc = llog_origin_handle_open(req);
- if (rc == 0)
- (void)mgs_handle_fslog_hack(req);
- break;
- case LLOG_ORIGIN_HANDLE_NEXT_BLOCK:
- DEBUG_REQ(D_MGS, req, "llog next block");
- req_capsule_set(&req->rq_pill,
- &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
- rc = llog_origin_handle_next_block(req);
- break;
- case LLOG_ORIGIN_HANDLE_PREV_BLOCK:
- DEBUG_REQ(D_MGS, req, "llog prev block");
- req_capsule_set(&req->rq_pill,
- &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK);
- rc = llog_origin_handle_prev_block(req);
- break;
- case LLOG_ORIGIN_HANDLE_READ_HEADER:
- DEBUG_REQ(D_MGS, req, "llog read header");
- req_capsule_set(&req->rq_pill,
- &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER);
- rc = llog_origin_handle_read_header(req);
- break;
- case LLOG_ORIGIN_HANDLE_CLOSE:
- DEBUG_REQ(D_MGS, req, "llog close");
- rc = llog_origin_handle_close(req);
- break;
- default:
- rc = -EOPNOTSUPP;
- }
+ ENTRY;
- LASSERT(current->journal_info == NULL);
- if (rc) {
- DEBUG_REQ(D_MGS, req, "MGS fail to handle opc = %d: rc = %d\n",
- opc, rc);
- req->rq_status = rc;
- rc = ptlrpc_error(req);
+ rc = tgt_llog_open(tsi);
+ if (rc)
RETURN(rc);
+
+ /*
+ * For old clients there is no direct way of knowing which file system
+ * a client is operating at the MGS side. But we need to pick up those
+ * clients so that the MGS can mark the corresponding file system as
+ * non-IR capable because old clients are not ready to be notified.
+ *
+ * Therefore we attempt to detect the file systems name by hacking the
+ * llog operation which is currently used by the clients to fetch
+ * configuration logs. At present this is fine because this is the
+ * ONLY llog operation between mgc and the MGS.
+ *
+ * If extra llog operation are going to be added, this function needs
+ * further work.
+ *
+ * When releases prior than 2.0 are not supported, the following code
+ * can be removed.
+ */
+ mgi = mgs_env_info(tsi->tsi_env);
+ if (IS_ERR(mgi))
+ RETURN(PTR_ERR(mgi));
+
+ logname = req_capsule_client_get(tsi->tsi_pill, &RMF_NAME);
+ if (logname) {
+ char *ptr = strrchr(logname, '-');
+ int len = (ptr != NULL) ? (int)(ptr - logname) : 0;
+
+ if (ptr == NULL || len >= sizeof(mgi->mgi_fsname)) {
+ if (strcmp(logname, PARAMS_FILENAME) != 0)
+ LCONSOLE_WARN("%s: non-config logname "
+ "received: %s\n",
+ tgt_name(tsi->tsi_tgt),
+ logname);
+ /* not error, this can be llog test name */
+ } else {
+ strncpy(mgi->mgi_fsname, logname, len);
+ mgi->mgi_fsname[len] = 0;
+
+ rc = mgs_fsc_attach(tsi->tsi_env, tsi->tsi_exp,
+ mgi->mgi_fsname);
+ if (rc && rc != -EEXIST) {
+ LCONSOLE_WARN("%s: Unable to add client %s "
+ "to file system %s: %d\n",
+ tgt_name(tsi->tsi_tgt),
+ libcfs_nid2str(req->rq_peer.nid),
+ mgi->mgi_fsname, rc);
+ } else {
+ rc = 0;
+ }
+ }
+ } else {
+ CERROR("%s: no logname in request\n", tgt_name(tsi->tsi_tgt));
+ RETURN(-EINVAL);
}
-out:
- target_send_reply(req, rc, fail);
- RETURN(0);
+ RETURN(rc);
}
static inline int mgs_init_export(struct obd_export *exp)
/* init mgs_export_data for fsc */
spin_lock_init(&data->med_lock);
- CFS_INIT_LIST_HEAD(&data->med_clients);
+ INIT_LIST_HEAD(&data->med_clients);
spin_lock(&exp->exp_lock);
exp->exp_connecting = 1;
RETURN(0);
}
-static int mgs_extract_fs_pool(char * arg, char *fsname, char *poolname)
+static int mgs_extract_fs_pool(char *arg, char *fsname, char *poolname)
{
- char *ptr;
+ size_t len;
+ char *ptr;
- ENTRY;
- for (ptr = arg; (*ptr != '\0') && (*ptr != '.'); ptr++ ) {
- *fsname = *ptr;
- fsname++;
- }
- if (*ptr == '\0')
- return -EINVAL;
- *fsname = '\0';
- ptr++;
- strcpy(poolname, ptr);
+ ENTRY;
+ /* Validate name */
+ for (ptr = arg; *ptr != '\0'; ptr++) {
+ if (!isalnum(*ptr) && *ptr != '_' && *ptr != '-' && *ptr != '.')
+ return -EINVAL;
+ }
- RETURN(0);
+ /* Test for fsname.poolname format.
+ * strlen() test if poolname is empty
+ */
+ ptr = strchr(arg, '.');
+ if (!ptr || !strlen(ptr))
+ return -EINVAL;
+ ptr++;
+
+ /* Also make sure poolname is not to long. */
+ if (strlen(ptr) > LOV_MAXPOOLNAME)
+ return -ENAMETOOLONG;
+ strncpy(poolname, ptr, strlen(ptr));
+
+ /* Test if fsname is empty */
+ len = strlen(arg) - strlen(ptr) - 1;
+ if (!len)
+ return -EINVAL;
+
+ /* or too long */
+ if (len > LUSTRE_MAXFSNAME)
+ return -ENAMETOOLONG;
+
+ strncpy(fsname, arg, len);
+
+ RETURN(0);
+}
+
+static int mgs_iocontrol_nodemap(const struct lu_env *env,
+ struct mgs_device *mgs,
+ struct obd_ioctl_data *data)
+{
+ struct lustre_cfg *lcfg = NULL;
+ struct fs_db *fsdb;
+ lnet_nid_t nid;
+ const char *nodemap_name = NULL;
+ const char *nidstr = NULL;
+ const char *client_idstr = NULL;
+ const char *idtype_str = NULL;
+ char *param = NULL;
+ char fs_idstr[16];
+ char name_buf[LUSTRE_NODEMAP_NAME_LENGTH + 1];
+ int rc = 0;
+ unsigned long client_id;
+ __u32 fs_id;
+ __u32 cmd;
+ int idtype;
+
+ ENTRY;
+
+ if (data->ioc_type != LUSTRE_CFG_TYPE) {
+ CERROR("%s: unknown cfg record type: %d\n",
+ mgs->mgs_obd->obd_name, data->ioc_type);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ if (data->ioc_plen1 > PAGE_SIZE)
+ GOTO(out, rc = -E2BIG);
+
+ OBD_ALLOC(lcfg, data->ioc_plen1);
+ if (lcfg == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ if (copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1))
+ GOTO(out_lcfg, rc = -EFAULT);
+
+ cmd = lcfg->lcfg_command;
+
+ switch (cmd) {
+ case LCFG_NODEMAP_ACTIVATE:
+ if (lcfg->lcfg_bufcount != 2)
+ GOTO(out_lcfg, rc = -EINVAL);
+ param = lustre_cfg_string(lcfg, 1);
+ if (strcmp(param, "1") == 0)
+ nodemap_activate(1);
+ else
+ nodemap_activate(0);
+ break;
+ case LCFG_NODEMAP_ADD:
+ case LCFG_NODEMAP_DEL:
+ if (lcfg->lcfg_bufcount != 2)
+ GOTO(out_lcfg, rc = -EINVAL);
+ nodemap_name = lustre_cfg_string(lcfg, 1);
+ rc = mgs_nodemap_cmd(env, mgs, cmd, nodemap_name, param);
+ break;
+ case LCFG_NODEMAP_TEST_NID:
+ if (lcfg->lcfg_bufcount != 2)
+ GOTO(out_lcfg, rc = -EINVAL);
+ nidstr = lustre_cfg_string(lcfg, 1);
+ nid = libcfs_str2nid(nidstr);
+ nodemap_test_nid(nid, name_buf, sizeof(name_buf));
+ rc = copy_to_user(data->ioc_pbuf1, name_buf,
+ MIN(data->ioc_plen1, sizeof(name_buf)));
+ if (rc != 0)
+ GOTO(out_lcfg, rc = -EFAULT);
+ break;
+ case LCFG_NODEMAP_TEST_ID:
+ if (lcfg->lcfg_bufcount != 4)
+ GOTO(out_lcfg, rc = -EINVAL);
+ nidstr = lustre_cfg_string(lcfg, 1);
+ idtype_str = lustre_cfg_string(lcfg, 2);
+ client_idstr = lustre_cfg_string(lcfg, 3);
+
+ nid = libcfs_str2nid(nidstr);
+ if (strcmp(idtype_str, "uid") == 0)
+ idtype = NODEMAP_UID;
+ else
+ idtype = NODEMAP_GID;
+
+ rc = kstrtoul(client_idstr, 10, &client_id);
+ if (rc != 0)
+ GOTO(out_lcfg, rc = -EINVAL);
+
+ rc = nodemap_test_id(nid, idtype, client_id, &fs_id);
+ if (rc < 0)
+ GOTO(out_lcfg, rc = -EINVAL);
+
+ if (data->ioc_plen1 < sizeof(fs_idstr))
+ GOTO(out_lcfg, rc = -EINVAL);
+
+ snprintf(fs_idstr, sizeof(fs_idstr), "%u", fs_id);
+ if (copy_to_user(data->ioc_pbuf1, fs_idstr,
+ sizeof(fs_idstr)) != 0)
+ GOTO(out_lcfg, rc = -EINVAL);
+ break;
+ case LCFG_NODEMAP_ADD_RANGE:
+ case LCFG_NODEMAP_DEL_RANGE:
+ case LCFG_NODEMAP_ADD_UIDMAP:
+ case LCFG_NODEMAP_DEL_UIDMAP:
+ case LCFG_NODEMAP_ADD_GIDMAP:
+ case LCFG_NODEMAP_DEL_GIDMAP:
+ case LCFG_NODEMAP_SET_FILESET:
+ case LCFG_NODEMAP_SET_SEPOL:
+ if (lcfg->lcfg_bufcount != 3)
+ GOTO(out_lcfg, rc = -EINVAL);
+ nodemap_name = lustre_cfg_string(lcfg, 1);
+ param = lustre_cfg_string(lcfg, 2);
+ rc = mgs_nodemap_cmd(env, mgs, cmd, nodemap_name, param);
+ break;
+ case LCFG_NODEMAP_ADMIN:
+ case LCFG_NODEMAP_TRUSTED:
+ case LCFG_NODEMAP_DENY_UNKNOWN:
+ case LCFG_NODEMAP_SQUASH_UID:
+ case LCFG_NODEMAP_SQUASH_GID:
+ case LCFG_NODEMAP_MAP_MODE:
+ case LCFG_NODEMAP_AUDIT_MODE:
+ if (lcfg->lcfg_bufcount != 4)
+ GOTO(out_lcfg, rc = -EINVAL);
+ nodemap_name = lustre_cfg_string(lcfg, 1);
+ param = lustre_cfg_string(lcfg, 3);
+ rc = mgs_nodemap_cmd(env, mgs, cmd, nodemap_name, param);
+ break;
+ default:
+ rc = -ENOTTY;
+ }
+
+ if (rc != 0) {
+ CERROR("%s: OBD_IOC_NODEMAP command %X for %s: rc = %d\n",
+ mgs->mgs_obd->obd_name, lcfg->lcfg_command,
+ nodemap_name, rc);
+ GOTO(out_lcfg, rc);
+ }
+
+ /* revoke nodemap lock */
+ rc = mgs_find_or_make_fsdb(env, mgs, LUSTRE_NODEMAP_NAME, &fsdb);
+ if (rc < 0) {
+ CWARN("%s: cannot make nodemap fsdb: rc = %d\n",
+ mgs->mgs_obd->obd_name, rc);
+ } else {
+ mgs_revoke_lock(mgs, fsdb, CONFIG_T_NODEMAP);
+ mgs_put_fsdb(mgs, fsdb);
+ }
+
+out_lcfg:
+ OBD_FREE(lcfg, data->ioc_plen1);
+out:
+ RETURN(rc);
}
static int mgs_iocontrol_pool(const struct lu_env *env,
GOTO(out_pool, rc = -EINVAL);
}
- if (data->ioc_plen1 > CFS_PAGE_SIZE)
+ if (data->ioc_plen1 > PAGE_SIZE)
GOTO(out_pool, rc = -E2BIG);
OBD_ALLOC(lcfg, data->ioc_plen1);
if (lcfg == NULL)
GOTO(out_pool, rc = -ENOMEM);
- if (cfs_copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1))
+ if (copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1))
GOTO(out_lcfg, rc = -EFAULT);
if (lcfg->lcfg_bufcount < 2)
}
/* from mdt_iocontrol */
-int mgs_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
- void *karg, void *uarg)
+static int mgs_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
+ void *karg, void __user *uarg)
{
struct mgs_device *mgs = exp2mgs_dev(exp);
struct obd_ioctl_data *data = karg;
switch (cmd) {
- case OBD_IOC_PARAM: {
- struct mgs_thread_info *mgi = mgs_env_info(&env);
- struct lustre_cfg *lcfg;
+ case OBD_IOC_PARAM: {
+ struct lustre_cfg *lcfg;
if (data->ioc_type != LUSTRE_CFG_TYPE) {
CERROR("%s: unknown cfg record type: %d\n",
OBD_ALLOC(lcfg, data->ioc_plen1);
if (lcfg == NULL)
GOTO(out, rc = -ENOMEM);
- if (cfs_copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1))
+ if (copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1))
GOTO(out_free, rc = -EFAULT);
if (lcfg->lcfg_bufcount < 1)
GOTO(out_free, rc = -EINVAL);
- rc = mgs_setparam(&env, mgs, lcfg, mgi->mgi_fsname);
+ rc = mgs_set_param(&env, mgs, lcfg);
if (rc)
CERROR("%s: setparam err: rc = %d\n",
exp->exp_obd->obd_name, rc);
case OBD_IOC_REPLACE_NIDS: {
if (!data->ioc_inllen1 || !data->ioc_inlbuf1) {
- CERROR("No device name specified!\n");
- RETURN(-EINVAL);
+ rc = -EINVAL;
+ CERROR("%s: no device or fsname specified: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ break;
}
- if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
- CERROR("Device name is not NUL terminated!\n");
- RETURN(-EINVAL);
+ if (data->ioc_inllen1 > MTI_NAME_MAXLEN) {
+ rc = -EOVERFLOW;
+ CERROR("%s: device or fsname is too long: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ break;
}
- if (data->ioc_plen1 > MTI_NAME_MAXLEN) {
- CERROR("Device name is too long\n");
- RETURN(-EOVERFLOW);
+ if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
+ rc = -EINVAL;
+ CERROR("%s: device or fsname is not NUL terminated: "
+ "rc = %d\n", exp->exp_obd->obd_name, rc);
+ break;
}
if (!data->ioc_inllen2 || !data->ioc_inlbuf2) {
- CERROR("No NIDs were specified!\n");
- RETURN(-EINVAL);
+ rc = -EINVAL;
+ CERROR("%s: no NIDs specified: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ break;
}
if (data->ioc_inlbuf2[data->ioc_inllen2 - 1] != 0) {
- CERROR("NID list is not NUL terminated!\n");
- RETURN(-EINVAL);
+ rc = -EINVAL;
+ CERROR("%s: NID list is not NUL terminated: "
+ "rc = %d\n", exp->exp_obd->obd_name, rc);
+ break;
}
/* replace nids in llog */
CERROR("%s: error replacing nids: rc = %d\n",
exp->exp_obd->obd_name, rc);
- RETURN(rc);
+ break;
+ }
+
+ case OBD_IOC_CLEAR_CONFIGS: {
+ if (!data->ioc_inllen1 || !data->ioc_inlbuf1) {
+ rc = -EINVAL;
+ CERROR("%s: no device or fsname specified: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ break;
+ }
+
+ if (data->ioc_inllen1 > MTI_NAME_MAXLEN) {
+ rc = -EOVERFLOW;
+ CERROR("%s: device or fsname is too long: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ break;
+ }
+
+ if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
+ rc = -EINVAL;
+ CERROR("%s: device or fsname is not NUL terminated: "
+ "rc = %d\n", exp->exp_obd->obd_name, rc);
+ break;
+ }
+
+ /* remove records marked SKIP from config logs */
+ rc = mgs_clear_configs(&env, mgs, data->ioc_inlbuf1);
+ if (rc)
+ CERROR("%s: error clearing config log: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+
+ break;
}
case OBD_IOC_POOL:
rc = mgs_iocontrol_pool(&env, mgs, data);
break;
- case OBD_IOC_DUMP_LOG: {
- struct llog_ctxt *ctxt;
+ case OBD_IOC_BARRIER:
+ rc = mgs_iocontrol_barrier(&env, mgs, data);
+ break;
- ctxt = llog_get_context(mgs->mgs_obd, LLOG_CONFIG_ORIG_CTXT);
- rc = class_config_dump_llog(&env, ctxt, data->ioc_inlbuf1,
- NULL);
- llog_ctxt_put(ctxt);
+ case OBD_IOC_NODEMAP:
+ rc = mgs_iocontrol_nodemap(&env, mgs, data);
+ break;
+ case OBD_IOC_LCFG_FORK:
+ rc = mgs_lcfg_fork(&env, mgs, data->ioc_inlbuf1,
+ data->ioc_inlbuf2);
break;
- }
+ case OBD_IOC_LCFG_ERASE:
+ rc = mgs_lcfg_erase(&env, mgs, data->ioc_inlbuf1);
+ break;
+
+ case OBD_IOC_CATLOGLIST:
+ rc = mgs_list_logs(&env, mgs, data);
+ break;
case OBD_IOC_LLOG_CANCEL:
case OBD_IOC_LLOG_REMOVE:
case OBD_IOC_LLOG_CHECK:
RETURN(rc);
}
+static struct tgt_handler mgs_mgs_handlers[] = {
+TGT_RPC_HANDLER(MGS_FIRST_OPC,
+ 0, MGS_CONNECT, mgs_connect,
+ &RQF_CONNECT, LUSTRE_OBD_VERSION),
+TGT_RPC_HANDLER(MGS_FIRST_OPC,
+ 0, MGS_DISCONNECT, mgs_disconnect,
+ &RQF_MDS_DISCONNECT, LUSTRE_OBD_VERSION),
+TGT_MGS_HDL_VAR(0, MGS_EXCEPTION, mgs_exception),
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 13, 53, 0)
+TGT_MGS_HDL (HABEO_REFERO | MUTABOR, MGS_SET_INFO, mgs_set_info),
+#endif
+TGT_MGS_HDL (HABEO_REFERO | MUTABOR, MGS_TARGET_REG, mgs_target_reg),
+TGT_MGS_HDL_VAR(0, MGS_TARGET_DEL, mgs_target_del),
+TGT_MGS_HDL (HABEO_REFERO, MGS_CONFIG_READ, mgs_config_read),
+};
+
+static struct tgt_handler mgs_obd_handlers[] = {
+TGT_OBD_HDL(0, OBD_PING, tgt_obd_ping),
+};
+
+static struct tgt_handler mgs_dlm_handlers[] = {
+[LDLM_ENQUEUE - LDLM_FIRST_OPC] = {
+ .th_name = "LDLM_ENQUEUE",
+ /* don't use th_fail_id for MGS to don't interfere with MDS tests.
+ * * There are no tests for MGS with OBD_FAIL_LDLM_ENQUEUE_NET so it
+ * * is safe. If such tests will be needed we have to distinguish
+ * * MDS and MGS fail ids, e.g use OBD_FAIL_MGS_ENQUEUE_NET for MGS
+ * * instead of common OBD_FAIL_LDLM_ENQUEUE_NET */
+ .th_fail_id = 0,
+ .th_opc = LDLM_ENQUEUE,
+ .th_flags = HABEO_CLAVIS,
+ .th_act = tgt_enqueue,
+ .th_fmt = &RQF_LDLM_ENQUEUE,
+ .th_version = LUSTRE_DLM_VERSION,
+ },
+};
+
+static struct tgt_handler mgs_llog_handlers[] = {
+TGT_LLOG_HDL (0, LLOG_ORIGIN_HANDLE_CREATE, mgs_llog_open),
+TGT_LLOG_HDL (0, LLOG_ORIGIN_HANDLE_NEXT_BLOCK, tgt_llog_next_block),
+TGT_LLOG_HDL (0, LLOG_ORIGIN_HANDLE_READ_HEADER, tgt_llog_read_header),
+TGT_LLOG_HDL (0, LLOG_ORIGIN_HANDLE_PREV_BLOCK, tgt_llog_prev_block),
+};
+
+static struct tgt_opc_slice mgs_common_slice[] = {
+ {
+ .tos_opc_start = MGS_FIRST_OPC,
+ .tos_opc_end = MGS_LAST_OPC,
+ .tos_hs = mgs_mgs_handlers
+ },
+ {
+ .tos_opc_start = OBD_FIRST_OPC,
+ .tos_opc_end = OBD_LAST_OPC,
+ .tos_hs = mgs_obd_handlers
+ },
+ {
+ .tos_opc_start = LDLM_FIRST_OPC,
+ .tos_opc_end = LDLM_LAST_OPC,
+ .tos_hs = mgs_dlm_handlers
+ },
+ {
+ .tos_opc_start = LLOG_FIRST_OPC,
+ .tos_opc_end = LLOG_LAST_OPC,
+ .tos_hs = mgs_llog_handlers
+ },
+ {
+ .tos_opc_start = SEC_FIRST_OPC,
+ .tos_opc_end = SEC_LAST_OPC,
+ .tos_hs = tgt_sec_ctx_handlers
+ },
+ {
+ .tos_hs = NULL
+ }
+};
static int mgs_init0(const struct lu_env *env, struct mgs_device *mgs,
struct lu_device_type *ldt, struct lustre_cfg *lcfg)
{
- static struct ptlrpc_service_conf conf;
- struct lprocfs_static_vars lvars = { 0 };
- struct obd_device *obd;
- struct lustre_mount_info *lmi;
- struct llog_ctxt *ctxt;
- int rc;
+ struct ptlrpc_service_conf conf;
+ struct obd_device *obd;
+ struct lustre_mount_info *lmi;
+ struct llog_ctxt *ctxt;
+ int rc;
ENTRY;
rc = mgs_connect_to_osd(mgs, lustre_cfg_string(lcfg, 3));
if (rc)
- RETURN(rc);
+ GOTO(err_lmi, rc);
obd = class_name2obd(lustre_cfg_string(lcfg, 0));
LASSERT(obd);
if (obd->obd_namespace == NULL)
GOTO(err_ops, rc = -ENOMEM);
- /* ldlm setup */
- ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
- "mgs_ldlm_client", &obd->obd_ldlm_client);
+ /* No recovery for MGCs */
+ obd->obd_replayable = 0;
+
+ rc = tgt_init(env, &mgs->mgs_lut, obd, mgs->mgs_bottom,
+ mgs_common_slice, OBD_FAIL_MGS_ALL_REQUEST_NET,
+ OBD_FAIL_MGS_ALL_REPLY_NET);
+ if (rc)
+ GOTO(err_ns, rc);
rc = mgs_fs_setup(env, mgs);
if (rc) {
CERROR("%s: MGS filesystem method init failed: rc = %d\n",
obd->obd_name, rc);
- GOTO(err_ns, rc);
+ GOTO(err_tgt, rc);
}
rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CONFIG_ORIG_CTXT,
ctxt->loc_dir = mgs->mgs_configs_dir;
llog_ctxt_put(ctxt);
- /* No recovery for MGC's */
- obd->obd_replayable = 0;
-
/* Internal mgs setup */
mgs_init_fsdb_list(mgs);
mutex_init(&mgs->mgs_mutex);
- mgs->mgs_start_time = cfs_time_current_sec();
+ mgs->mgs_start_time = ktime_get_real_seconds();
spin_lock_init(&mgs->mgs_lock);
+ mutex_init(&mgs->mgs_health_mutex);
+ init_rwsem(&mgs->mgs_barrier_rwsem);
- /* Setup proc */
- lprocfs_mgs_init_vars(&lvars);
- if (lprocfs_obd_setup(obd, lvars.obd_vars) == 0) {
- lproc_mgs_setup(mgs, lustre_cfg_string(lcfg, 3));
- rc = lprocfs_alloc_md_stats(obd, LPROC_MGS_LAST);
- if (rc)
- GOTO(err_llog, rc);
+ rc = mgs_lcfg_rename(env, mgs);
+ if (rc)
+ GOTO(err_llog, rc);
+
+ rc = lproc_mgs_setup(mgs, lustre_cfg_string(lcfg, 3));
+ if (rc != 0) {
+ CERROR("%s: cannot initialize proc entry: rc = %d\n",
+ obd->obd_name, rc);
+ GOTO(err_llog, rc);
}
+ /* Setup params fsdb and log, so that other servers can make a local
+ * copy successfully when they are mounted. See LU-4783 */
+ rc = mgs_params_fsdb_setup(env, mgs);
+ if (rc)
+ /* params fsdb and log can be setup later */
+ CERROR("%s: %s fsdb and log setup failed: rc = %d\n",
+ obd->obd_name, PARAMS_FILENAME, rc);
+
+ /* Setup _mgs fsdb, useful for srpc */
+ mgs__mgs_fsdb_setup(env, mgs);
+
+ ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
+ "mgs_ldlm_client", &obd->obd_ldlm_client);
+
conf = (typeof(conf)) {
.psc_name = LUSTRE_MGS_NAME,
.psc_watchdog_factor = MGS_SERVICE_WATCHDOG_FACTOR,
.tc_ctx_tags = LCT_MG_THREAD,
},
.psc_ops = {
- .so_req_handler = mgs_handle,
+ .so_req_handler = tgt_request_handle,
.so_req_printer = target_print_req,
},
};
+
/* Start the service threads */
- mgs->mgs_service = ptlrpc_register_service(&conf, obd->obd_proc_entry);
+ mgs->mgs_service = ptlrpc_register_service(&conf, &obd->obd_kset,
+ obd->obd_debugfs_entry);
if (IS_ERR(mgs->mgs_service)) {
rc = PTR_ERR(mgs->mgs_service);
- CERROR("failed to start service: %d\n", rc);
+ CERROR("failed to start mgs service: %d\n", rc);
+ mgs->mgs_service = NULL;
GOTO(err_lproc, rc);
}
/* device stack is not yet fully setup to keep no objects behind */
lu_site_purge(env, mgs2lu_dev(mgs)->ld_site, ~0);
RETURN(0);
-
err_lproc:
+ mgs_params_fsdb_cleanup(env, mgs);
lproc_mgs_cleanup(mgs);
err_llog:
ctxt = llog_get_context(mgs->mgs_obd, LLOG_CONFIG_ORIG_CTXT);
ctxt->loc_dir = NULL;
llog_cleanup(env, ctxt);
}
+err_tgt:
+ tgt_fini(env, &mgs->mgs_lut);
err_fs:
/* No extra cleanup needed for llog_init_commit_thread() */
mgs_fs_cleanup(env, mgs);
err_ops:
lu_site_purge(env, mgs2lu_dev(mgs)->ld_site, ~0);
if (!cfs_hash_is_empty(mgs2lu_dev(mgs)->ld_site->ls_obj_hash)) {
- LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
+ LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_OTHER, NULL);
lu_site_print(env, mgs2lu_dev(mgs)->ld_site, &msgdata,
lu_cdebug_printer);
}
obd_disconnect(mgs->mgs_bottom_exp);
+err_lmi:
+ if (lmi)
+ server_put_mount(lustre_cfg_string(lcfg, 0), true);
RETURN(rc);
}
else
rc = -ENOMEM;
- return 0;
+ return rc;
}
static void mgs_object_free(const struct lu_env *env, struct lu_object *o)
return (*p)(env, cookie, LUSTRE_MGS_NAME"-object@%p", o);
}
-struct lu_object_operations mgs_lu_obj_ops = {
+static struct lu_object_operations mgs_lu_obj_ops = {
.loo_object_init = mgs_object_init,
.loo_object_free = mgs_object_free,
.loo_object_print = mgs_object_print,
};
-struct lu_object *mgs_object_alloc(const struct lu_env *env,
- const struct lu_object_header *hdr,
- struct lu_device *d)
+static struct lu_object *mgs_object_alloc(const struct lu_env *env,
+ const struct lu_object_header *hdr,
+ struct lu_device *d)
{
struct lu_object_header *h;
struct mgs_object *o;
LASSERT(mgs->mgs_bottom);
+ class_disconnect_exports(obd);
+
ping_evictor_stop();
+ mutex_lock(&mgs->mgs_health_mutex);
ptlrpc_unregister_service(mgs->mgs_service);
+ mutex_unlock(&mgs->mgs_health_mutex);
+
+ mgs_params_fsdb_cleanup(env, mgs);
+ mgs_cleanup_fsdb_list(mgs);
+ ldlm_namespace_free_prior(obd->obd_namespace, NULL, 1);
obd_exports_barrier(obd);
obd_zombie_barrier();
- mgs_cleanup_fsdb_list(mgs);
+ tgt_fini(env, &mgs->mgs_lut);
lproc_mgs_cleanup(mgs);
ctxt = llog_get_context(mgs->mgs_obd, LLOG_CONFIG_ORIG_CTXT);
mgs_fs_cleanup(env, mgs);
- ldlm_namespace_free(obd->obd_namespace, NULL, 1);
+ ldlm_namespace_free_post(obd->obd_namespace);
obd->obd_namespace = NULL;
lu_site_purge(env, d->ld_site, ~0);
if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
- LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
+ LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_OTHER, NULL);
lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
}
LASSERT(mgs->mgs_bottom_exp);
obd_disconnect(mgs->mgs_bottom_exp);
- server_put_mount(obd->obd_name, NULL);
+ server_put_mount(obd->obd_name, true);
RETURN(NULL);
}
.ldt_ctx_tags = LCT_MG_THREAD
};
+static int mgs_obd_reconnect(const struct lu_env *env, struct obd_export *exp,
+ struct obd_device *obd, struct obd_uuid *cluuid,
+ struct obd_connect_data *data, void *localdata)
+{
+ ENTRY;
+
+ if (exp == NULL || obd == NULL || cluuid == NULL)
+ RETURN(-EINVAL);
+
+ tgt_counter_incr(exp, LPROC_MGS_CONNECT);
+
+ if (data != NULL) {
+ data->ocd_connect_flags &= MGS_CONNECT_SUPPORTED;
+
+ if (data->ocd_connect_flags & OBD_CONNECT_FLAGS2)
+ data->ocd_connect_flags2 &= MGS_CONNECT_SUPPORTED2;
+
+ exp->exp_connect_data = *data;
+ data->ocd_version = LUSTRE_VERSION_CODE;
+ }
+
+ RETURN(mgs_export_stats_init(obd, exp, localdata));
+}
+
+static int mgs_obd_connect(const struct lu_env *env, struct obd_export **exp,
+ struct obd_device *obd, struct obd_uuid *cluuid,
+ struct obd_connect_data *data, void *localdata)
+{
+ struct obd_export *lexp;
+ struct lustre_handle conn = {
+ .cookie = 0,
+ };
+ int rc;
+
+ ENTRY;
+
+ if (exp == NULL || obd == NULL || cluuid == NULL)
+ RETURN(-EINVAL);
+
+ rc = class_connect(&conn, obd, cluuid);
+ if (rc)
+ RETURN(rc);
+
+ lexp = class_conn2export(&conn);
+ if (lexp == NULL)
+ RETURN(-EFAULT);
+
+ rc = mgs_obd_reconnect(env, lexp, obd, cluuid, data, localdata);
+ if (rc)
+ GOTO(out_disconnect, rc);
+
+ *exp = lexp;
+
+ RETURN(rc);
+
+out_disconnect:
+ class_disconnect(lexp);
+
+ return rc;
+}
+
+static int mgs_obd_disconnect(struct obd_export *exp)
+{
+ int rc;
+
+ ENTRY;
+
+ LASSERT(exp);
+
+ mgs_fsc_cleanup(exp);
+
+ class_export_get(exp);
+ tgt_counter_incr(exp, LPROC_MGS_DISCONNECT);
+
+ rc = server_disconnect_export(exp);
+ class_export_put(exp);
+ RETURN(rc);
+}
+
+static int mgs_health_check(const struct lu_env *env, struct obd_device *obd)
+{
+ struct mgs_device *mgs = lu2mgs_dev(obd->obd_lu_dev);
+ int rc = 0;
+
+ mutex_lock(&mgs->mgs_health_mutex);
+ rc |= ptlrpc_service_health_check(mgs->mgs_service);
+ mutex_unlock(&mgs->mgs_health_mutex);
+
+ return rc != 0 ? 1 : 0;
+}
/* use obd ops to offer management infrastructure */
-static struct obd_ops mgs_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_connect = mgs_connect,
- .o_reconnect = mgs_reconnect,
- .o_disconnect = mgs_disconnect,
- .o_init_export = mgs_init_export,
- .o_destroy_export = mgs_destroy_export,
- .o_iocontrol = mgs_iocontrol,
+static struct obd_ops mgs_obd_device_ops = {
+ .o_owner = THIS_MODULE,
+ .o_connect = mgs_obd_connect,
+ .o_reconnect = mgs_obd_reconnect,
+ .o_disconnect = mgs_obd_disconnect,
+ .o_init_export = mgs_init_export,
+ .o_destroy_export = mgs_destroy_export,
+ .o_iocontrol = mgs_iocontrol,
+ .o_health_check = mgs_health_check,
};
static int __init mgs_init(void)
{
- struct lprocfs_static_vars lvars;
-
- lprocfs_mgs_init_vars(&lvars);
- class_register_type(&mgs_obd_ops, NULL, lvars.module_vars,
- LUSTRE_MGS_NAME, &mgs_device_type);
-
- return 0;
+ return class_register_type(&mgs_obd_device_ops, NULL, true, NULL,
+ LUSTRE_MGS_NAME, &mgs_device_type);
}
-static void /*__exit*/ mgs_exit(void)
+static void __exit mgs_exit(void)
{
- class_unregister_type(LUSTRE_MGS_NAME);
+ class_unregister_type(LUSTRE_MGS_NAME);
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Management Server (MGS)");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Management Server (MGS)");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
module_init(mgs_init);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff