1 files changed, 35 insertions, 0 deletions
diff --git a/qa/btrfs/clone_range.c b/qa/btrfs/clone_range.c
new file mode 100644
index 000000000..0a88e1601
--- /dev/null
+++ b/qa/btrfs/clone_range.c
@@ -0,0 +1,35 @@
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <string.h>
+
+#include <linux/types.h>
+#include "../../src/os/btrfs_ioctl.h"
+#include <stdio.h>
+#include <errno.h>
+
+int main(int argc, char **argv)
+{
+        struct btrfs_ioctl_clone_range_args ca;
+        int dfd;
+        int r;
+
+	if (argc < 6) {
+		printf("usage: %s <srcfn> <srcoffset> <srclen> <destfn> <destoffset>\n", argv[0]);
+		exit(1);
+	}
+
+        ca.src_fd = open(argv[1], O_RDONLY);
+        ca.src_offset = atoi(argv[2]);
+        ca.src_length = atoi(argv[3]);
+        dfd = open(argv[4], O_WRONLY|O_CREAT);
+        ca.dest_offset = atoi(argv[5]);
+
+        r = ioctl(dfd, BTRFS_IOC_CLONE_RANGE, &ca);
+        printf("clone_range %s %lld %lld~%lld to %s %d %lld = %d %s\n",
+               argv[1], ca.src_fd,
+	       ca.src_offset, ca.src_length,
+	       argv[4], dfd,
+               ca.dest_offset, r, strerror(errno));
+        return r;
+}