haraldwolff/qemu-patch-raspberry4
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migration: Only go to the iterate stage if there is anything to send

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Signed-off-by: Orit Wasserman <owasserm@redhat.com>
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 2012-10-17 21:06:31 +02:00
parent c369f40d2c
commit b22ff1fbed
1 changed files with 1 additions and 1 deletions
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2
migration.c
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@ -698,7 +698,7 @@ static void *buffered_file_thread(void *opaque)
DPRINTF("iterate\n");
pending_size = qemu_savevm_state_pending(s->file, max_size);
DPRINTF("pending size %lu max %lu\n", pending_size, max_size);
if (pending_size >= max_size) {
if (pending_size && pending_size >= max_size) {
ret = qemu_savevm_state_iterate(s->file);
if (ret < 0) {
qemu_mutex_unlock_iothread();