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migration/multifd: initialize packet->magic/version once at setup stage 

MultiFDPacket_t's magic and version field never changes during
migration, so move these two fields in setup stage.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20191011085050.17622-4-richardw.yang@linux.intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wei Yang 2019-10-11 16:50:49 +08:00 committed by Dr. David Alan Gilbert
parent f2148c4c79
commit 9985e1f48d
1 changed files with 2 additions and 2 deletions
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4
migration/ram.c
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@ -793,8 +793,6 @@ static void multifd_send_fill_packet(MultiFDSendParams *p)
MultiFDPacket_t *packet = p->packet;
int i;
packet->magic = cpu_to_be32(MULTIFD_MAGIC);
packet->version = cpu_to_be32(MULTIFD_VERSION);
packet->flags = cpu_to_be32(p->flags);
packet->pages_alloc = cpu_to_be32(p->pages->allocated);
packet->pages_used = cpu_to_be32(p->pages->used);
@ -1240,6 +1238,8 @@ int multifd_save_setup(void)
p->packet_len = sizeof(MultiFDPacket_t)
+ sizeof(ram_addr_t) * page_count;
p->packet = g_malloc0(p->packet_len);
p->packet->magic = cpu_to_be32(MULTIFD_MAGIC);
p->packet->version = cpu_to_be32(MULTIFD_VERSION);
p->name = g_strdup_printf("multifdsend_%d", i);
socket_send_channel_create(multifd_new_send_channel_async, p);
}