Use qemu_put_buffer_async for guest memory pages
This will remove an unneeded copy of guest memory pages.
For the page header and device state we still copy the data to the
static buffer the other option is to allocate the memory on demand
which is more expensive.
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
diff --git a/arch_init.c b/arch_init.c
index e1af898..4ef5a15 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -478,7 +478,7 @@
/* XBZRLE overflow or normal page */
if (bytes_sent == -1) {
bytes_sent = save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE);
- qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
+ qemu_put_buffer_async(f, p, TARGET_PAGE_SIZE);
bytes_sent += TARGET_PAGE_SIZE;
acct_info.norm_pages++;
}