From 1b98be7980ca1ac4a5ea1b140e09594c74824204 Mon Sep 17 00:00:00 2001

From: Paolo Bonzini <pbonzini@redhat.com>

Date: Fri, 22 Feb 2013 17:36:37 +0100

Subject: [PATCH 235/246] qemu-file: fsync a writable stdio QEMUFile

This is what fd_close does.  Prepare for switching to a QEMUFile.

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>

---

 savevm.c | 18 ++++++++++++++++++

 1 file changed, 18 insertions(+)

diff --git a/savevm.c b/savevm.c

index 38699de..1d49fde 100644

--- a/savevm.c

+++ b/savevm.c

@@ -256,6 +256,24 @@ static int stdio_fclose(void *opaque)

 {

     QEMUFileStdio *s = opaque;

     int ret = 0;

+

+    if (s->file->ops->put_buffer) {

+        int fd = fileno(s->stdio_file);

+        struct stat st;

+

+        ret = fstat(fd, &st);

+        if (ret == 0 && S_ISREG(st.st_mode)) {

+            /*

+             * If the file handle is a regular file make sure the

+             * data is flushed to disk before signaling success.

+             */

+            ret = fsync(fd);

+            if (ret != 0) {

+                ret = -errno;

+                return ret;

+            }

+        }

+    }

     if (fclose(s->stdio_file) == EOF) {

         ret = -errno;

     }

-- 

1.8.2.1