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-rw-r--r--include/linux/loop.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/loop.h b/include/linux/loop.h
index 5f08d18fa1480..683d698901198 100644
--- a/include/linux/loop.h
+++ b/include/linux/loop.h
@@ -160,4 +160,8 @@ int loop_unregister_transfer(int number);
#define LOOP_CHANGE_FD 0x4C06
#define LOOP_SET_CAPACITY 0x4C07
+/* /dev/loop-control interface */
+#define LOOP_CTL_ADD 0x4C80
+#define LOOP_CTL_REMOVE 0x4C81
+#define LOOP_CTL_GET_FREE 0x4C82
#endif