diff --git a/src/ioslaves/file/ConfigureChecks.cmake b/src/ioslaves/file/ConfigureChecks.cmake
--- a/src/ioslaves/file/ConfigureChecks.cmake
+++ b/src/ioslaves/file/ConfigureChecks.cmake
@@ -7,6 +7,7 @@
 check_include_files(sys/time.h    HAVE_SYS_TIME_H)
 check_include_files(string.h      HAVE_STRING_H)
 check_include_files(limits.h      HAVE_LIMITS_H)
+check_include_files(linux/fs.h    HAVE_LINUX_FS_H)
 check_function_exists(sendfile    HAVE_SENDFILE)
 
 check_function_exists(posix_fadvise    HAVE_FADVISE)                  # kioslave
diff --git a/src/ioslaves/file/config-kioslave-file.h.cmake b/src/ioslaves/file/config-kioslave-file.h.cmake
--- a/src/ioslaves/file/config-kioslave-file.h.cmake
+++ b/src/ioslaves/file/config-kioslave-file.h.cmake
@@ -3,6 +3,7 @@
 #cmakedefine01 HAVE_SYS_TIME_H
 #cmakedefine01 HAVE_STRING_H
 #cmakedefine01 HAVE_LIMITS_H
+#cmakedefine01 HAVE_LINUX_FS_H
 
 /* Defined if system has POSIX ACL support. */
 #cmakedefine01 HAVE_POSIX_ACL
diff --git a/src/ioslaves/file/file_unix.cpp b/src/ioslaves/file/file_unix.cpp
--- a/src/ioslaves/file/file_unix.cpp
+++ b/src/ioslaves/file/file_unix.cpp
@@ -43,6 +43,14 @@
 #endif
 #include <utime.h>
 
+#if HAVE_LINUX_FS_H
+#include <linux/fs.h>
+#endif
+
+#if !defined FICLONE && defined Q_OS_LINUX
+#define FICLONE _IOW(0x94, 9, int) //in linux/fs.h
+#endif
+
 #include <KAuth>
 #include <KRandom>
 
@@ -249,13 +257,24 @@
 #endif
     totalSize(buff_src.st_size);
 
+    bool clone_created = false;
+#ifdef FICLONE
+        clone_created = ioctl(dest_file.handle(), FICLONE, src_file.handle()) != -1;
+        //qDebug() << "Clone created:" << clone_created;"
+#endif
+
     KIO::filesize_t processed_size = 0;
     char buffer[ MAX_IPC_SIZE ];
     ssize_t n = 0;
 #ifdef USE_SENDFILE
     bool use_sendfile = buff_src.st_size < 0x7FFFFFFF;
 #endif
     while (1) {
+       if (clone_created) {
+            processedSize(buff_src.st_size);
+            break;
+        }
+
 #ifdef USE_SENDFILE
         if (use_sendfile) {
             off_t sf = processed_size;