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>

*** 298,320 ****
  typedef struct {
          sigqueue_t      sn_sigq;        /* sigq struct for notification */
          u_longlong_t    sn_snid;        /* unique id for notification   */
  } signotifyq_t;
  
- 
  typedef struct sigqhdr {                /* sigqueue pool header         */
          sigqueue_t      *sqb_free;      /* free sigq struct list        */
!         uchar_t         sqb_count;      /* sigq free count              */
!         uchar_t         sqb_maxcount;   /* sigq max free count          */
!         ushort_t        sqb_size;       /* size of header+free structs  */
          uchar_t         sqb_pexited;    /* process has exited           */
!         uchar_t         sqb_sent;       /* number of sigq sent          */
          kcondvar_t      sqb_cv;         /* waiting for a sigq struct    */
          kmutex_t        sqb_lock;       /* lock for sigq pool           */
  } sigqhdr_t;
  
! #define _SIGQUEUE_MAX   32
  #define _SIGNOTIFY_MAX  32
  
  extern  void    setsigact(int, void (*)(int), const k_sigset_t *, int);
  extern  void    sigorset(k_sigset_t *, const k_sigset_t *);
  extern  void    sigandset(k_sigset_t *, const k_sigset_t *);
--- 298,321 ----
  typedef struct {
          sigqueue_t      sn_sigq;        /* sigq struct for notification */
          u_longlong_t    sn_snid;        /* unique id for notification   */
  } signotifyq_t;
  
  typedef struct sigqhdr {                /* sigqueue pool header         */
          sigqueue_t      *sqb_free;      /* free sigq struct list        */
!         int             sqb_count;      /* sigq free count              */
!         uint_t          sqb_maxcount;   /* sigq max free count          */
!         size_t          sqb_size;       /* size of header+free structs  */
          uchar_t         sqb_pexited;    /* process has exited           */
!         uint_t          sqb_sent;       /* number of sigq sent          */
          kcondvar_t      sqb_cv;         /* waiting for a sigq struct    */
          kmutex_t        sqb_lock;       /* lock for sigq pool           */
  } sigqhdr_t;
  
! #define _SIGQUEUE_SIZE_BASIC            128     /* basic limit */
! #define _SIGQUEUE_SIZE_PRIVILEGED       512     /* privileged limit */
! 
  #define _SIGNOTIFY_MAX  32
  
  extern  void    setsigact(int, void (*)(int), const k_sigset_t *, int);
  extern  void    sigorset(k_sigset_t *, const k_sigset_t *);
  extern  void    sigandset(k_sigset_t *, const k_sigset_t *);