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Diffstat (limited to 'migration/multifd-zlib.c')
-rw-r--r--migration/multifd-zlib.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c
index 6120faad65..83c0374380 100644
--- a/migration/multifd-zlib.c
+++ b/migration/multifd-zlib.c
@@ -123,13 +123,15 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp)
int ret;
uint32_t i;
- multifd_send_prepare_header(p);
+ if (!multifd_send_prepare_common(p)) {
+ goto out;
+ }
- for (i = 0; i < pages->num; i++) {
+ for (i = 0; i < pages->normal_num; i++) {
uint32_t available = z->zbuff_len - out_size;
int flush = Z_NO_FLUSH;
- if (i == pages->num - 1) {
+ if (i == pages->normal_num - 1) {
flush = Z_SYNC_FLUSH;
}
@@ -172,10 +174,10 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp)
p->iov[p->iovs_num].iov_len = out_size;
p->iovs_num++;
p->next_packet_size = out_size;
- p->flags |= MULTIFD_FLAG_ZLIB;
+out:
+ p->flags |= MULTIFD_FLAG_ZLIB;
multifd_send_fill_packet(p);
-
return 0;
}
@@ -261,6 +263,14 @@ static int zlib_recv(MultiFDRecvParams *p, Error **errp)
p->id, flags, MULTIFD_FLAG_ZLIB);
return -1;
}
+
+ multifd_recv_zero_page_process(p);
+
+ if (!p->normal_num) {
+ assert(in_size == 0);
+ return 0;
+ }
+
ret = qio_channel_read_all(p->c, (void *)z->zbuff, in_size, errp);
if (ret != 0) {
@@ -310,6 +320,7 @@ static int zlib_recv(MultiFDRecvParams *p, Error **errp)
p->id, out_size, expected_size);
return -1;
}
+
return 0;
}