staging/lustre: Get rid of LIBLUSTRE_CLIENT and its users

This define only made sense in a userspace library client, not in the kernel.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/include/lustre_lib.h

@@ -350,8 +350,6 @@ do {									   \
 	l_wait_event_exclusive_head(wq, condition, &lwi);       \
 })
 
-#define LIBLUSTRE_CLIENT (0)
-
 /** @} lib */
 
 #endif /* _LUSTRE_LIB_H */

drivers/staging/lustre/lustre/ldlm/ldlm_request.c

@@ -475,12 +475,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 				   "client-side enqueue, new policy data");
 	}
 
-	if ((*flags) & LDLM_FL_AST_SENT ||
-	    /* Cancel extent locks as soon as possible on a liblustre client,
-	     * because it cannot handle asynchronous ASTs robustly (see
-	     * bug 7311).
-	     */
-	    (LIBLUSTRE_CLIENT && type == LDLM_EXTENT)) {
+	if ((*flags) & LDLM_FL_AST_SENT) {
 		lock_res_and_lock(lock);
 		lock->l_flags |= LDLM_FL_CBPENDING |  LDLM_FL_BL_AST;
 		unlock_res_and_lock(lock);
@@ -775,14 +770,6 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
 	body->lock_flags = ldlm_flags_to_wire(*flags);
 	body->lock_handle[0] = *lockh;
 
-	/*
-	 * Liblustre client doesn't get extent locks, except for O_APPEND case
-	 * where [0, OBD_OBJECT_EOF] lock is taken, or truncate, where
-	 * [i_size, OBD_OBJECT_EOF] lock is taken.
-	 */
-	LASSERT(ergo(LIBLUSTRE_CLIENT, einfo->ei_type != LDLM_EXTENT ||
-		     policy->l_extent.end == OBD_OBJECT_EOF));
-
 	if (async) {
 		LASSERT(reqp);
 		return 0;