8115 parallel zfs mount

@@ -9,23 +9,26 @@
  * http://www.illumos.org/license/CDDL.
  */
 
 /*
  * Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
+ * Copyright 2017 RackTop Systems.
  */
 
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/thread.h>
 #include <sys/proc.h>
 #include <sys/zone.h>
+#include <sys/cyclic.h>
 
 #include <sys/poll.h>
 
 #include <time.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <errno.h>
 
 #include <fakekernel.h>
 
 pri_t minclsyspri = 60;
 

@@ -53,24 +56,95 @@
 ddi_get_pid(void)
 {
         return ((pid_t)getpid());
 }
 
+/*
+ * Find highest one bit set.
+ *      Returns bit number + 1 of highest bit that is set, otherwise returns 0.
+ */
 int
+highbit64(uint64_t i)
+{
+        int h = 1;
+
+        if (i == 0)
+                return (0);
+        if (i & 0xffffffff00000000ULL) {
+                h += 32; i >>= 32;
+        }
+        if (i & 0xffff0000) {
+                h += 16; i >>= 16;
+        }
+        if (i & 0xff00) {
+                h += 8; i >>= 8;
+        }
+        if (i & 0xf0) {
+                h += 4; i >>= 4;
+        }
+        if (i & 0xc) {
+                h += 2; i >>= 2;
+        }
+        if (i & 0x2) {
+                h += 1;
+        }
+        return (h);
+}
+
+int
 ddi_strtoul(const char *str, char **endp, int base, unsigned long *res)
 {
         *res = strtoul(str, endp, base);
+        if (*res == 0)
+                return (errno);
         return (0);
 }
 
+int
+ddi_strtoull(const char *str, char **nptr, int base, u_longlong_t *res)
+{
+        char *end;
+
+        *res = strtoull(str, &end, base);
+        if (*res == 0)
+                return (errno);
+        return (0);
+}
+
 void
 delay(clock_t ticks)
 {
         int msec = ticks;  /* NB: hz==1000 */
         (void) poll(0, 0, msec);
 }
 
+int
+issig(int why)
+{
+        return (0);
+}
+
+/* ARGSUSED */
+cyclic_id_t
+cyclic_add(cyc_handler_t *hdlr, cyc_time_t *when)
+{
+        return (1);
+}
+
+/* ARGSUSED */
+void
+cyclic_remove(cyclic_id_t id)
+{
+}
+
+/* ARGSUSED */
+int
+cyclic_reprogram(cyclic_id_t id, hrtime_t expiration)
+{
+        return (1);
+}
+
 /*
  * This library does not really need an "init" function, but
  * providing one the main program can call is an easy way to
  * make sure this library is loaded into the debugger, and
  * gives us a way to avoid elfcheck complaints in the build.