qemu/0114-migration-flush-all-data-to-fd-when-buffered_flush-i.patch

From 015c261bdbb06a737b14600d62c37fef28ea9d22 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 22 Feb 2013 17:36:15 +0100
Subject: [PATCH] migration: flush all data to fd when buffered_flush is called

Including data that resided in the QEMUFile's own buffer.

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit f5821518ed6d49aae9fd0aa6169d2d74bb83054c)
---
 migration.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/migration.c b/migration.c
index 739e38c..1027b40 100644
--- a/migration.c
+++ b/migration.c
@@ -525,6 +525,8 @@ static ssize_t buffered_flush(MigrationState *s)
 
     DPRINTF("flushing %zu byte(s) of data\n", s->buffer_size);
 
+    qemu_fflush(s->file);
+
     while (s->bytes_xfer < s->xfer_limit && offset < s->buffer_size) {
         size_t to_send = MIN(s->buffer_size - offset, s->xfer_limit - s->bytes_xfer);
         ret = migrate_fd_put_buffer(s, s->buffer + offset, to_send);