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migration: save/delete migration thread info 

To support query migration thread infomation, save and delete
thread(live_migration and multifdsend) information at thread
creation and finish.

Signed-off-by: Jiang Jiacheng <jiangjiacheng@huawei.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Jiang Jiacheng 2023-02-03 15:35:19 +08:00 committed by Juan Quintela
parent 671326201d
commit 1b1f4ab69c
2 changed files with 10 additions and 0 deletions
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5
migration/migration.c
View File

@ -58,6 +58,7 @@
#include "net/announce.h"
#include "qemu/queue.h"
#include "multifd.h"
#include "threadinfo.h"
#include "qemu/yank.h"
#include "sysemu/cpus.h"
#include "yank_functions.h"
@ -4028,10 +4029,13 @@ static void qemu_savevm_wait_unplug(MigrationState *s, int old_state,
static void *migration_thread(void *opaque)
{
MigrationState *s = opaque;
MigrationThread *thread = NULL;
int64_t setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);
MigThrError thr_error;
bool urgent = false;
thread = MigrationThreadAdd("live_migration", qemu_get_thread_id());
rcu_register_thread();
object_ref(OBJECT(s));
@ -4108,6 +4112,7 @@ static void *migration_thread(void *opaque)
migration_iteration_finish(s);
object_unref(OBJECT(s));
rcu_unregister_thread();
MigrationThreadDel(thread);
return NULL;
}

5
migration/multifd.c
View File

@ -24,6 +24,7 @@
#include "qemu-file.h"
#include "trace.h"
#include "multifd.h"
#include "threadinfo.h"
#include "qemu/yank.h"
#include "io/channel-socket.h"
@ -649,10 +650,13 @@ int multifd_send_sync_main(QEMUFile *f)
static void *multifd_send_thread(void *opaque)
{
MultiFDSendParams *p = opaque;
MigrationThread *thread = NULL;
Error *local_err = NULL;
int ret = 0;
bool use_zero_copy_send = migrate_use_zero_copy_send();
thread = MigrationThreadAdd(p->name, qemu_get_thread_id());
trace_multifd_send_thread_start(p->id);
rcu_register_thread();
@ -762,6 +766,7 @@ out:
qemu_mutex_unlock(&p->mutex);
rcu_unregister_thread();
MigrationThreadDel(thread);
trace_multifd_send_thread_end(p->id, p->num_packets, p->total_normal_pages);
return NULL;