aboutsummaryrefslogtreecommitdiff
path: root/migration-fd.c
diff options
context:
space:
mode:
Diffstat (limited to 'migration-fd.c')
-rw-r--r--migration-fd.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/migration-fd.c b/migration-fd.c
index d0aec89e8d..6211124a05 100644
--- a/migration-fd.c
+++ b/migration-fd.c
@@ -42,10 +42,31 @@ static int fd_write(MigrationState *s, const void * buf, size_t size)
static int fd_close(MigrationState *s)
{
+ struct stat st;
+ int ret;
+
DPRINTF("fd_close\n");
if (s->fd != -1) {
- close(s->fd);
+ ret = fstat(s->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(s->fd);
+ if (ret != 0) {
+ ret = -errno;
+ perror("migration-fd: fsync");
+ return ret;
+ }
+ }
+ ret = close(s->fd);
s->fd = -1;
+ if (ret != 0) {
+ ret = -errno;
+ perror("migration-fd: close");
+ return ret;
+ }
}
return 0;
}