+/* Flags for unlink */
+#define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
+#define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
+ /* HSM cleaning needed */
+/* Flags for HSM */
+/* 12b used (from high weight to low weight):
+ * 2b for flags
+ * 3b for event
+ * 7b for error code
+ */
+#define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
+#define CLF_HSM_ERR_H 6
+#define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
+#define CLF_HSM_EVENT_H 9
+#define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
+#define CLF_HSM_FLAG_H 11
+#define CLF_HSM_SPARE_L 12 /* 4 spare bits */
+#define CLF_HSM_SPARE_H 15
+#define CLF_HSM_LAST 15
+
+#define CLF_GET_BITS(_b, _h, _l) \
+ _b &= (0xFFFF << (CLF_HSM_LAST - _h)); \
+ _b = _b >> (_l + CLF_HSM_LAST - _h)
+
+#define CLF_HSM_SUCCESS 0x00
+#define CLF_HSM_MAXERROR 0x7E
+#define CLF_HSM_ERROVERFLOW 0x7F
+
+#define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
+
+/* 3 bits field => 8 values allowed */
+enum hsm_event {
+ HE_ARCHIVE = 0,
+ HE_RESTORE = 1,
+ HE_CANCEL = 2,
+ HE_RELEASE = 3,
+ HE_REMOVE = 4,
+ HE_STATE = 5,
+ HE_SPARE1 = 6,
+ HE_SPARE2 = 7,
+};
+
+static inline enum hsm_event hsm_get_cl_event(__u16 flags)
+{
+ enum hsm_event he;
+
+ CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L);
+ he = flags;
+ return he;
+}
+
+static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
+{
+ *flags |= (he << CLF_HSM_EVENT_L);
+}
+
+static inline __u16 hsm_get_cl_flags(int flags)
+{
+ CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
+ return flags;
+}
+
+static inline void hsm_set_cl_flags(int *flags, int bits)
+{
+ *flags |= (bits << CLF_HSM_FLAG_L);
+}
+
+static inline int hsm_get_cl_error(int flags)
+{
+ CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
+ return flags;
+}
+
+static inline void hsm_set_cl_error(int *flags, int error)
+{
+ *flags |= (error << CLF_HSM_ERR_L);
+}