block/replication: drop extra synchronization

[qemu.git] / util / iov.c

diff --git a/util/iov.c b/util/iov.c
index 062f4e50c36099aa221da7be2f77c167aca68753..74e6ca8ed7298c833e52257923c10fb73c9377ad 100644 (file)
--- a/util/iov.c
+++ b/util/iov.c
@@ -17,8 +17,10 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu-common.h"
 #include "qemu/iov.h"
 #include "qemu/sockets.h"
+#include "qemu/cutils.h"
 
 size_t iov_from_buf_full(const struct iovec *iov, unsigned int iov_cnt,
                          size_t offset, const void *buf, size_t bytes)
@@ -245,7 +247,8 @@ unsigned iov_copy(struct iovec *dst_iov, unsigned int dst_iov_cnt,
 {
     size_t len;
     unsigned int i, j;
-    for (i = 0, j = 0; i < iov_cnt && j < dst_iov_cnt && bytes; i++) {
+    for (i = 0, j = 0;
+         i < iov_cnt && j < dst_iov_cnt && (offset || bytes); i++) {
         if (offset >= iov[i].iov_len) {
             offset -= iov[i].iov_len;
             continue;