6151 use NULL setpagesize segop as a shorthand for ENOTSUP

*** 137,147 ****
  static int segspt_shmadvise(struct seg *seg, caddr_t addr, size_t len,
                          uint_t behav);
  static void segspt_shmdump(struct seg *seg);
  static int segspt_shmpagelock(struct seg *, caddr_t, size_t,
                          struct page ***, enum lock_type, enum seg_rw);
- static int segspt_shmsetpgsz(struct seg *, caddr_t, size_t, uint_t);
  static int segspt_shmgetmemid(struct seg *, caddr_t, memid_t *);
  static lgrp_mem_policy_info_t *segspt_shmgetpolicy(struct seg *, caddr_t);
  
  struct seg_ops segspt_shmops = {
          .dup            = segspt_shmdup,
--- 137,146 ----
*** 161,171 ****
          .gettype        = segspt_shmgettype,
          .getvp          = segspt_shmgetvp,
          .advise         = segspt_shmadvise,
          .dump           = segspt_shmdump,
          .pagelock       = segspt_shmpagelock,
-         .setpagesize    = segspt_shmsetpgsz,
          .getmemid       = segspt_shmgetmemid,
          .getpolicy      = segspt_shmgetpolicy,
  };
  
  static void segspt_purge(struct seg *seg);
--- 160,169 ----
*** 3015,3031 ****
  segspt_shmdump(struct seg *seg)
  {
          /* no-op for ISM segment */
  }
  
- /*ARGSUSED*/
- static faultcode_t
- segspt_shmsetpgsz(struct seg *seg, caddr_t addr, size_t len, uint_t szc)
- {
-         return (ENOTSUP);
- }
- 
  /*
   * get a memory ID for an addr in a given segment
   */
  static int
  segspt_shmgetmemid(struct seg *seg, caddr_t addr, memid_t *memidp)
--- 3013,3022 ----