3830 SIGQUEUE_MAX's limit of 32 is too low
Reviewed by: Cedric Blancher <cedric.blancher@gmail.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Reviewed by: Irek Szczesniak <iszczesniak@gmail.com>

*** 45,54 ****
--- 45,56 ----
  #include <sys/mman.h>
  #include <sys/timer.h>
  #include <sys/zone.h>
  #include <sys/vm_usage.h>
  
+ extern rctl_hndl_t rc_process_sigqueue;
+ 
  long
  sysconfig(int which)
  {
          switch (which) {
  
*** 138,148 ****
  
          case _CONFIG_SEM_VALUE_MAX:
                  return (_SEM_VALUE_MAX);
  
          case _CONFIG_SIGQUEUE_MAX:
!                 return (_SIGQUEUE_MAX);
  
          case _CONFIG_SIGRT_MIN:
                  return (_SIGRTMIN);
  
          case _CONFIG_SIGRT_MAX:
--- 140,160 ----
  
          case _CONFIG_SEM_VALUE_MAX:
                  return (_SEM_VALUE_MAX);
  
          case _CONFIG_SIGQUEUE_MAX:
!                 /*
!                  * Maximum number of outstanding queued signals.
!                  */
!                 {
!                         rlim64_t sigqsz_max;
!                         mutex_enter(&curproc->p_lock);
!                         sigqsz_max = rctl_enforced_value(rc_process_sigqueue,
!                             curproc->p_rctls, curproc);
!                         mutex_exit(&curproc->p_lock);
!                         return ((uint_t)sigqsz_max);
!                 }
  
          case _CONFIG_SIGRT_MIN:
                  return (_SIGRTMIN);
  
          case _CONFIG_SIGRT_MAX: