Initial revision
diff --git a/fdflush.c b/fdflush.c
new file mode 100644
index 0000000..a15e9b3
--- /dev/null
+++ b/fdflush.c
@@ -0,0 +1,36 @@
+#include "internal.h"
+#include <sys/ioctl.h>
+#include <linux/fd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+const char fdflush_usage[] = "fdflush device";
+
+int
+fdflush(const char *filename)
+{
+ int status;
+ int fd = open(filename, 0);
+
+ if ( fd < 0 ) {
+ name_and_error(filename);
+ return 1;
+ }
+
+ status = ioctl(fd, FDFLUSH, 0);
+ close(fd);
+
+ if ( status != 0 ) {
+ name_and_error(filename);
+ return 1;
+ }
+ return 0;
+}
+
+
+int
+fdflush_fn(const struct FileInfo * i)
+{
+ return fdflush(i->source);
+}