#include <linux/lustre_import.h>
#include <linux/lustre_export.h>
#include <linux/obd.h>
+#include <linux/obd_ost.h>
#include <linux/obd_class.h>
#include <linux/obd_lov.h> /* for IOC_LOV_SET_OSC_ACTIVE */
#include "ptlrpc_internal.h"
-enum reconnect_result {
- RECON_RESULT_RECOVERING = 1,
- RECON_RESULT_RECONNECTED = 2,
- RECON_RESULT_EVICTED = 3,
-};
-
-int ptlrpc_reconnect_import(struct obd_import *imp)
-{
- struct obd_device *obd = imp->imp_obd;
- int rc, size[] = {sizeof(imp->imp_target_uuid),
- sizeof(obd->obd_uuid),
- sizeof(imp->imp_dlm_handle)};
- char *tmp[] = {imp->imp_target_uuid.uuid,
- obd->obd_uuid.uuid,
- (char *)&imp->imp_dlm_handle};
- struct ptlrpc_connection *conn = imp->imp_connection;
- struct ptlrpc_request *req;
- struct lustre_handle old_hdl;
- __u64 committed_before_reconnect = imp->imp_peer_committed_transno;
- ENTRY;
-
- req = ptlrpc_prep_req(imp, imp->imp_connect_op, 3, size, tmp);
- if (!req)
- RETURN(-ENOMEM);
- req->rq_level = LUSTRE_CONN_NEW;
- req->rq_replen = lustre_msg_size(0, NULL);
- rc = ptlrpc_queue_wait(req);
- if (rc) {
- /* what if rc > 0 ??*/
- CERROR("cannot connect to %s@%s: rc = %d\n",
- imp->imp_target_uuid.uuid, conn->c_remote_uuid.uuid, rc);
- GOTO(out_disc, rc);
- }
-
- if (lustre_msg_get_op_flags(req->rq_repmsg) & MSG_CONNECT_RECONNECT) {
- memset(&old_hdl, 0, sizeof(old_hdl));
- if (!memcmp(&old_hdl, &req->rq_repmsg->handle,
- sizeof (old_hdl))) {
- CERROR("%s@%s didn't like our handle "LPX64
- ", failed\n", imp->imp_target_uuid.uuid,
- conn->c_remote_uuid.uuid,
- imp->imp_dlm_handle.cookie);
- GOTO(out_disc, rc = -ENOTCONN);
- }
-
- if (memcmp(&imp->imp_remote_handle, &req->rq_repmsg->handle,
- sizeof(imp->imp_remote_handle))) {
- CERROR("%s@%s changed handle from "LPX64" to "LPX64
- "; copying, but this may foreshadow disaster\n",
- imp->imp_target_uuid.uuid,
- conn->c_remote_uuid.uuid,
- imp->imp_remote_handle.cookie,
- req->rq_repmsg->handle.cookie);
- imp->imp_remote_handle = req->rq_repmsg->handle;
- GOTO(out_disc, rc = RECON_RESULT_RECONNECTED);
- }
-
- CERROR("reconnected to %s@%s after partition\n",
- imp->imp_target_uuid.uuid, conn->c_remote_uuid.uuid);
- GOTO(out_disc, rc = RECON_RESULT_RECONNECTED);
- } else if (lustre_msg_get_op_flags(req->rq_repmsg) &
- MSG_CONNECT_RECOVERING) {
- rc = RECON_RESULT_RECOVERING;
- } else {
- rc = RECON_RESULT_EVICTED;
- }
-
- old_hdl = imp->imp_remote_handle;
- imp->imp_remote_handle = req->rq_repmsg->handle;
- CERROR("reconnected to %s@%s ("LPX64", was "LPX64")!\n",
- imp->imp_target_uuid.uuid, conn->c_remote_uuid.uuid,
- imp->imp_remote_handle.cookie, old_hdl.cookie);
- if (req->rq_repmsg->last_committed < committed_before_reconnect) {
- CERROR("%s went back in time (transno "LPD64
- " was committed, server claims "LPD64
- ")! is shared storage not coherent?\n",
- imp->imp_target_uuid.uuid,
- imp->imp_peer_committed_transno,
- req->rq_repmsg->last_committed);
- }
-
- GOTO(out_disc, rc);
-
- out_disc:
- ptlrpc_req_finished(req);
- return rc;
-}
+static int ptlrpc_recover_import_no_retry(struct obd_import *, char *);
void ptlrpc_run_recovery_over_upcall(struct obd_device *obd)
{
void ptlrpc_run_failed_import_upcall(struct obd_import* imp)
{
+#ifdef __KERNEL__
char *argv[7];
char *envp[3];
int rc;
CERROR("Invoked upcall %s %s %s %s %s\n",
argv[0], argv[1], argv[2], argv[3], argv[4]);
}
+#else
+ ptlrpc_recover_import(imp, NULL);
+#endif
}
int ptlrpc_replay(struct obd_import *imp)
/* Well... what if lctl recover is called twice at the same time?
*/
spin_lock_irqsave(&imp->imp_lock, flags);
- LASSERT(imp->imp_level == LUSTRE_CONN_RECOVER);
+ LASSERT(imp->imp_state == LUSTRE_IMP_RECOVER);
spin_unlock_irqrestore(&imp->imp_lock, flags);
list_for_each_safe(tmp, pos, &imp->imp_sending_list) {
inline void ptlrpc_invalidate_import_state(struct obd_import *imp)
{
- struct ldlm_namespace *ns = imp->imp_obd->obd_namespace;
- if (ptlrpc_ldlm_namespace_cleanup == NULL)
- CERROR("ptlrpc/ldlm hook is NULL! Please tell phil\n");
- else
- ptlrpc_ldlm_namespace_cleanup(ns, 1 /* no network ops */);
+ struct obd_device *obd = imp->imp_obd;
+ struct ldlm_namespace *ns = obd->obd_namespace;
+
ptlrpc_abort_inflight(imp);
+
+#if 0
+ obd_invalidate_import(obd, imp);
+#endif
+
+ ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY | LDLM_FL_CANCEL);
}
void ptlrpc_handle_failed_import(struct obd_import *imp)
imp->imp_obd->obd_name,
imp->imp_target_uuid.uuid,
imp->imp_connection->c_remote_uuid.uuid);
- rc = ptlrpc_recover_import(imp, NULL);
- if (rc < 0) {
- ptlrpc_resend_req(failed_req);
- if (rc != -EALREADY)
- ptlrpc_handle_failed_import(imp);
- } else if (rc == RECON_RESULT_RECOVERING) {
- ptlrpc_resend_req(failed_req);
- } else {
- if (rc != RECON_RESULT_EVICTED) {
- /* like LBUG, without the locking up */
- CERROR("unknown recover_import result %d\n", rc);
- portals_debug_dumplog();
- portals_run_lbug_upcall(__FILE__, __FUNCTION__,
- __LINE__);
- }
- LASSERT(failed_req->rq_import_generation < imp->imp_generation);
+
+ rc = ptlrpc_recover_import_no_retry(imp, NULL);
+
+ if (failed_req->rq_import_generation != imp->imp_generation) {
spin_lock_irqsave (&failed_req->rq_lock, flags);
failed_req->rq_err = 1;
spin_unlock_irqrestore (&failed_req->rq_lock, flags);
}
+ else {
+ ptlrpc_resend_req(failed_req);
+ if (rc && rc != -EALREADY)
+ ptlrpc_handle_failed_import(imp);
+
+ }
EXIT;
}
int ptlrpc_set_import_active(struct obd_import *imp, int active)
{
- struct obd_device *notify_obd;
+ struct obd_device *obd = imp->imp_obd;
unsigned long flags;
- int rc;
- LASSERT(imp->imp_obd);
-
- notify_obd = imp->imp_obd->u.cli.cl_containing_lov;
+ LASSERT(obd);
/* When deactivating, mark import invalid, and abort in-flight
* requests. */
imp->imp_generation++;
spin_unlock_irqrestore(&imp->imp_lock, flags);
ptlrpc_invalidate_import_state(imp);
- //ptlrpc_abort_inflight(imp);
}
- if (notify_obd == NULL)
- GOTO(out, rc = 0);
-
- /* How gross is _this_? */
- if (!list_empty(¬ify_obd->obd_exports)) {
- struct lustre_handle fakeconn;
- struct obd_ioctl_data ioc_data = { 0 };
- struct obd_export *exp =
- list_entry(notify_obd->obd_exports.next,
- struct obd_export, exp_obd_chain);
-
- fakeconn.cookie = exp->exp_handle.h_cookie;
- ioc_data.ioc_inlbuf1 = (char *)&imp->imp_target_uuid;
- ioc_data.ioc_offset = active;
- rc = obd_iocontrol(IOC_LOV_SET_OSC_ACTIVE, &fakeconn,
- sizeof ioc_data, &ioc_data, NULL);
- if (rc)
- CERROR("error %sabling %s on LOV %p/%s: %d\n",
- active ? "en" : "dis",
- imp->imp_target_uuid.uuid, notify_obd,
- notify_obd->obd_uuid.uuid, rc);
- } else {
- CDEBUG(D_HA, "No exports for obd %p/%s, can't notify about "
- "%p\n", notify_obd, notify_obd->obd_uuid.uuid,
- imp->imp_obd->obd_uuid.uuid);
- rc = -ENOENT;
- }
-
-out:
/* When activating, mark import valid */
- if (active && !rc) {
+ if (active) {
CDEBUG(D_HA, "setting import %s VALID\n",
imp->imp_target_uuid.uuid);
spin_lock_irqsave(&imp->imp_lock, flags);
spin_unlock_irqrestore(&imp->imp_lock, flags);
}
- RETURN(rc);
+ if (obd->obd_observer)
+ RETURN(obd_notify(obd->obd_observer, obd, active));
+
+ RETURN(0);
}
void ptlrpc_fail_import(struct obd_import *imp, int generation)
LASSERT (!imp->imp_dlm_fake);
spin_lock_irqsave(&imp->imp_lock, flags);
- if (imp->imp_level != LUSTRE_CONN_FULL)
+ if (imp->imp_state != LUSTRE_IMP_FULL) {
in_recovery = 1;
- else
- imp->imp_level = LUSTRE_CONN_NOTCONN;
+ } else {
+ CDEBUG(D_HA, "%s: new state: DISCON\n",
+ imp->imp_client->cli_name);
+ imp->imp_state = LUSTRE_IMP_DISCON;
+ }
spin_unlock_irqrestore(&imp->imp_lock, flags);
if (in_recovery) {
RETURN(-ENOMEM);
req->rq_replen = lustre_msg_size(0, NULL);
- req->rq_level = LUSTRE_CONN_RECOVER;
+ req->rq_send_state = LUSTRE_IMP_REPLAY;
req->rq_reqmsg->flags |= MSG_LAST_REPLAY;
+ req->rq_timeout *= 3;
rc = ptlrpc_queue_wait(req);
int ptlrpc_recover_import(struct obd_import *imp, char *new_uuid)
{
int rc;
+ ENTRY;
+
+ rc = ptlrpc_recover_import_no_retry(imp, new_uuid);
+
+ if (rc && rc != -EALREADY) {
+ unsigned long flags;
+ CDEBUG(D_HA, "recovery of %s on %s failed (%d); restarting\n",
+ imp->imp_target_uuid.uuid,
+ new_uuid ? new_uuid :
+ (char *)imp->imp_connection->c_remote_uuid.uuid, rc);
+ spin_lock_irqsave(&imp->imp_lock, flags);
+ imp->imp_state = LUSTRE_IMP_FULL;
+ spin_unlock_irqrestore(&imp->imp_lock, flags);
+ ptlrpc_fail_import(imp, imp->imp_generation);
+ }
+ RETURN(rc);
+}
+
+static int ptlrpc_recover_import_no_retry(struct obd_import *imp,
+ char *new_uuid)
+{
+ int rc;
unsigned long flags;
- int in_recover = 0;
- int recon_result;
+ int in_recovery = 0;
+ int was_invalid = 0;
ENTRY;
spin_lock_irqsave(&imp->imp_lock, flags);
- if (imp->imp_level == LUSTRE_CONN_FULL ||
- imp->imp_level == LUSTRE_CONN_NOTCONN)
- imp->imp_level = LUSTRE_CONN_RECOVER;
- else
- in_recover = 1;
+ if (imp->imp_state == LUSTRE_IMP_FULL) {
+ CDEBUG(D_HA, "%s: new state: DISCON\n",
+ imp->imp_client->cli_name);
+ imp->imp_state = LUSTRE_IMP_DISCON;
+ }
+
+ if (imp->imp_state != LUSTRE_IMP_DISCON) {
+ in_recovery = 1;
+ } else if (imp->imp_invalid) {
+ imp->imp_invalid = 0;
+ was_invalid = 1;
+ }
+
spin_unlock_irqrestore(&imp->imp_lock, flags);
- if (in_recover == 1)
+ if (in_recovery == 1)
RETURN(-EALREADY);
+ down(&imp->imp_recovery_sem);
+ /* If recovery happened while we waited, we're done. */
+ if (imp->imp_state == LUSTRE_IMP_FULL)
+ GOTO(out, rc = 0);
+
+ LASSERT (imp->imp_state == LUSTRE_IMP_DISCON);
+
if (new_uuid) {
struct ptlrpc_connection *conn;
struct obd_uuid uuid;
obd_str2uuid(&uuid, new_uuid);
if (ptlrpc_uuid_to_peer(&uuid, &peer)) {
CERROR("no connection found for UUID %s\n", new_uuid);
- RETURN(-EINVAL);
+ GOTO(out, rc = -EINVAL);
}
conn = ptlrpc_get_connection(&peer, &uuid);
if (!conn)
- RETURN(-ENOMEM);
+ GOTO(out, rc = -ENOMEM);
CDEBUG(D_HA, "switching import %s/%s from %s to %s\n",
imp->imp_target_uuid.uuid, imp->imp_obd->obd_name,
}
- recon_result = ptlrpc_reconnect_import(imp);
+ connect:
+ rc = ptlrpc_connect_import(imp);
- if (recon_result < 0) {
+ if (rc < 0) {
CERROR("failed to reconnect to %s@%s: %d\n",
imp->imp_target_uuid.uuid,
- imp->imp_connection->c_remote_uuid.uuid, recon_result);
- spin_lock_irqsave(&imp->imp_lock, flags);
- imp->imp_level = LUSTRE_CONN_NOTCONN;
- spin_unlock_irqrestore(&imp->imp_lock, flags);
- RETURN(recon_result);
- }
+ imp->imp_connection->c_remote_uuid.uuid, rc);
+ GOTO(out, rc);
+ }
- if (recon_result == RECON_RESULT_RECOVERING) {
+ if (imp->imp_state == LUSTRE_IMP_EVICTED) {
+ CDEBUG(D_HA, "evicted from %s@%s; invalidating\n",
+ imp->imp_target_uuid.uuid,
+ imp->imp_connection->c_remote_uuid.uuid);
+ ptlrpc_set_import_active(imp, 0);
+ CDEBUG(D_HA, "%s: new state: RECOVER\n",
+ imp->imp_client->cli_name);
+ imp->imp_state = LUSTRE_IMP_RECOVER;
+ }
+
+ if (imp->imp_state == LUSTRE_IMP_REPLAY) {
CDEBUG(D_HA, "replay requested by %s\n",
imp->imp_target_uuid.uuid);
rc = ptlrpc_replay(imp);
if (rc)
GOTO(out, rc);
- if (ptlrpc_ldlm_replay_locks == NULL)
- CERROR("ptlrpc/ldlm hook is NULL! Please tell phil\n");
- else
- rc = ptlrpc_ldlm_replay_locks(imp);
+ rc = ldlm_replay_locks(imp);
if (rc)
GOTO(out, rc);
rc = signal_completed_replay(imp);
if (rc)
GOTO(out, rc);
- } else if (recon_result == RECON_RESULT_RECONNECTED) {
+ CDEBUG(D_HA, "%s: new state: RECOVER\n",
+ imp->imp_client->cli_name);
+ imp->imp_state = LUSTRE_IMP_RECOVER;
+ }
+
+ if (imp->imp_state == LUSTRE_IMP_RECOVER) {
CDEBUG(D_HA, "reconnected to %s@%s\n",
imp->imp_target_uuid.uuid,
imp->imp_connection->c_remote_uuid.uuid);
- } else if (recon_result == RECON_RESULT_EVICTED) {
- CDEBUG(D_HA, "evicted from %s@%s; invalidating\n",
- imp->imp_target_uuid.uuid,
- imp->imp_connection->c_remote_uuid.uuid);
- ptlrpc_set_import_active(imp, 0);
- } else {
- LBUG();
- }
- ptlrpc_set_import_active(imp, 1);
+ ptlrpc_set_import_active(imp, 1);
+ ptlrpc_resend(imp);
+ spin_lock_irqsave(&imp->imp_lock, flags);
+ CDEBUG(D_HA, "%s: new state: FULL\n",
+ imp->imp_client->cli_name);
+ imp->imp_state = LUSTRE_IMP_FULL;
+ spin_unlock_irqrestore(&imp->imp_lock, flags);
+ ptlrpc_wake_delayed(imp);
+ }
- rc = ptlrpc_resend(imp);
- spin_lock_irqsave(&imp->imp_lock, flags);
- imp->imp_level = LUSTRE_CONN_FULL;
- spin_unlock_irqrestore(&imp->imp_lock, flags);
+ LASSERT(imp->imp_state == LUSTRE_IMP_FULL);
- ptlrpc_wake_delayed(imp);
- EXIT;
- if (!rc)
- rc = recon_result;
out:
- return rc;
+ if (rc != 0) {
+ spin_lock_irqsave(&imp->imp_lock, flags);
+ imp->imp_state = LUSTRE_IMP_DISCON;
+ spin_unlock_irqrestore(&imp->imp_lock, flags);
+
+ if (rc == -ENOTCONN) {
+ CDEBUG(D_HA, "evicted/aborted by %s@%s during recovery;"
+ "invalidating and reconnecting\n",
+ imp->imp_target_uuid.uuid,
+ imp->imp_connection->c_remote_uuid.uuid);
+ GOTO(connect, -ENOTCONN);
+ } else if (was_invalid) {
+ ptlrpc_set_import_active(imp, 0);
+ }
+ }
+ up(&imp->imp_recovery_sem);
+ RETURN(rc);
}
void ptlrpc_fail_export(struct obd_export *exp)
{
int rc, already_failed;
- struct lustre_handle hdl;
unsigned long flags;
spin_lock_irqsave(&exp->exp_lock, flags);
CDEBUG(D_HA, "disconnecting export %p/%s\n",
exp, exp->exp_client_uuid.uuid);
- hdl.cookie = exp->exp_handle.h_cookie;
- rc = obd_disconnect(&hdl, 0);
+
+ /* Most callers into obd_disconnect are removing their own reference
+ * (request, for example) in addition to the one from the hash table.
+ * We don't have such a reference here, so make one. */
+ class_export_get(exp);
+ rc = obd_disconnect(exp, 0);
if (rc)
CERROR("disconnecting export %p failed: %d\n", exp, rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff