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migration: move beginning stage to the migration thread 

Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Juan Quintela 2012-10-03 20:16:24 +02:00
parent afe419319d
commit 76f5933aea
2 changed files with 15 additions and 14 deletions
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1
include/migration/migration.h
View File

@ -54,7 +54,6 @@ struct MigrationState
bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
int64_t xbzrle_cache_size;
bool complete;
bool first_time;
};
void process_incoming_migration(QEMUFile *f);

28
migration.c
View File

@ -674,17 +674,6 @@ static bool migrate_fd_put_ready(MigrationState *s, uint64_t max_size)
qemu_mutex_unlock_iothread();
return false;
}
if (s->first_time) {
s->first_time = false;
DPRINTF("beginning savevm\n");
ret = qemu_savevm_state_begin(s->file, &s->params);
if (ret < 0) {
DPRINTF("failed, %d\n", ret);
migrate_fd_error(s);
qemu_mutex_unlock_iothread();
return false;
}
}
DPRINTF("iterate\n");
pending_size = qemu_savevm_state_pending(s->file, max_size);
@ -733,6 +722,17 @@ static void *buffered_file_thread(void *opaque)
int64_t initial_time = qemu_get_clock_ms(rt_clock);
int64_t max_size = 0;
bool last_round = false;
int ret;
qemu_mutex_lock_iothread();
DPRINTF("beginning savevm\n");
ret = qemu_savevm_state_begin(s->file, &s->params);
if (ret < 0) {
DPRINTF("failed, %d\n", ret);
qemu_mutex_unlock_iothread();
goto out;
}
qemu_mutex_unlock_iothread();
while (true) {
int64_t current_time = qemu_get_clock_ms(rt_clock);
@ -768,6 +768,10 @@ static void *buffered_file_thread(void *opaque)
}
}
out:
if (ret < 0) {
migrate_fd_error(s);
}
g_free(s->buffer);
return NULL;
}
@ -789,8 +793,6 @@ void migrate_fd_connect(MigrationState *s)
s->buffer_size = 0;
s->buffer_capacity = 0;
s->first_time = true;
s->xfer_limit = s->bandwidth_limit / XFER_LIMIT_RATIO;
s->complete = false;