From: Juan Quintela <quintela@redhat.com>
Date: Fri, 19 Nov 2021 14:03:02 +0000 (+0100)
Subject: multifd: Make zlib use iov's
X-Git-Tag: v7.0.0-rc0~71^2~27
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=48a4a44c1cde382c6b8e7792d01fe7d9b0a59c69;p=thirdparty%2Fqemu.git

multifd: Make zlib use iov's

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---

diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c
index a2fec4d01d8..71480c82bbb 100644
--- a/migration/multifd-zlib.c
+++ b/migration/multifd-zlib.c
@@ -143,6 +143,9 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp)
         }
         out_size += available - zs->avail_out;
     }
+    p->iov[p->iovs_num].iov_base = z->zbuff;
+    p->iov[p->iovs_num].iov_len = out_size;
+    p->iovs_num++;
     p->next_packet_size = out_size;
     p->flags |= MULTIFD_FLAG_ZLIB;
 
@@ -162,10 +165,7 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp)
  */
 static int zlib_send_write(MultiFDSendParams *p, uint32_t used, Error **errp)
 {
-    struct zlib_data *z = p->data;
-
-    return qio_channel_write_all(p->c, (void *)z->zbuff, p->next_packet_size,
-                                 errp);
+    return qio_channel_writev_all(p->c, p->iov, p->iovs_num, errp);
 }
 
 /**