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migration: Remove not needed semaphore and quit 

We know quit with shutdwon in the QIO.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Use shutdown() instead of unref()
This commit is contained in:
Juan Quintela 2018-04-18 00:49:19 +02:00
parent 4d22c148c9
commit 7a5cc33c48
1 changed files with 5 additions and 9 deletions
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14
migration/ram.c
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@ -594,14 +594,10 @@ typedef struct {
QemuThread thread;
/* communication channel */
QIOChannel *c;
/* sem where to wait for more work */
QemuSemaphore sem;
/* this mutex protects the following parameters */
QemuMutex mutex;
/* is this channel thread running */
bool running;
/* should this thread finish */
bool quit;
/* array of pages to receive */
MultiFDPages_t *pages;
/* packet allocated len */
@ -1144,8 +1140,11 @@ static void multifd_recv_terminate_threads(Error *err)
MultiFDRecvParams *p = &multifd_recv_state->params[i];
qemu_mutex_lock(&p->mutex);
p->quit = true;
qemu_sem_post(&p->sem);
/* We could arrive here for two reasons:
- normal quit, i.e. everything went fine, just finished
- error quit: We close the channels so the channel threads
finish the qio_channel_read_all_eof() */
qio_channel_shutdown(p->c, QIO_CHANNEL_SHUTDOWN_BOTH, NULL);
qemu_mutex_unlock(&p->mutex);
}
}
@ -1168,7 +1167,6 @@ int multifd_load_cleanup(Error **errp)
object_unref(OBJECT(p->c));
p->c = NULL;
qemu_mutex_destroy(&p->mutex);
qemu_sem_destroy(&p->sem);
qemu_sem_destroy(&p->sem_sync);
g_free(p->name);
p->name = NULL;
@ -1291,9 +1289,7 @@ int multifd_load_setup(void)
MultiFDRecvParams *p = &multifd_recv_state->params[i];
qemu_mutex_init(&p->mutex);
qemu_sem_init(&p->sem, 0);
qemu_sem_init(&p->sem_sync, 0);
p->quit = false;
p->id = i;
p->pages = multifd_pages_init(page_count);
p->packet_len = sizeof(MultiFDPacket_t)