dm: allow remove to be deferred

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / uapi / linux / dm-ioctl.h

diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index f1e12bd..c8a4302 100644 (file)
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -267,9 +267,9 @@ enum {
 #define DM_DEV_SET_GEOMETRY    _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR       4
-#define DM_VERSION_MINOR       26
+#define DM_VERSION_MINOR       27
 #define DM_VERSION_PATCHLEVEL  0
-#define DM_VERSION_EXTRA       "-ioctl (2013-08-15)"
+#define DM_VERSION_EXTRA       "-ioctl (2013-10-30)"
 
 /* Status bits */
 #define DM_READONLY_FLAG       (1 << 0) /* In/Out */
@@ -341,4 +341,15 @@ enum {
  */
 #define DM_DATA_OUT_FLAG               (1 << 16) /* Out */
 
+/*
+ * If set with DM_DEV_REMOVE or DM_REMOVE_ALL this indicates that if
+ * the device cannot be removed immediately because it is still in use
+ * it should instead be scheduled for removal when it gets closed.
+ *
+ * On return from DM_DEV_REMOVE, DM_DEV_STATUS or other ioctls, this
+ * flag indicates that the device is scheduled to be removed when it
+ * gets closed.
+ */
+#define DM_DEFERRED_REMOVE             (1 << 17) /* In/Out */
+
 #endif                         /* _LINUX_DM_IOCTL_H */