5382 pvn_getpages handles lengths <= PAGESIZE just fine

*** 19,28 ****
--- 19,29 ----
   * CDDL HEADER END
   */
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
+  * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  /*        All Rights Reserved   */
  
*** 1789,1804 ****
                          *protp = PROT_ALL;
  
                  if (((u_offset_t)off + len) > (SPEC_SIZE(sp) + PAGEOFFSET))
                          return (EFAULT);        /* beyond EOF */
  
!                 if (len <= PAGESIZE)
!                         err = spec_getapage(vp, (u_offset_t)off, len, protp, pl,
!                             plsz, seg, addr, rw, cr);
!                 else
!                         err = pvn_getpages(spec_getapage, vp, (u_offset_t)off,
!                             len, protp, pl, plsz, seg, addr, rw, cr);
                  break;
  
          case VCHR:
                  cmn_err(CE_NOTE, "spec_getpage called for character device. "
                      "Check any non-ON consolidation drivers");
--- 1790,1801 ----
                          *protp = PROT_ALL;
  
                  if (((u_offset_t)off + len) > (SPEC_SIZE(sp) + PAGEOFFSET))
                          return (EFAULT);        /* beyond EOF */
  
!                 err = pvn_getpages(spec_getapage, vp, (u_offset_t)off, len,
!                     protp, pl, plsz, seg, addr, rw, cr);
                  break;
  
          case VCHR:
                  cmn_err(CE_NOTE, "spec_getpage called for character device. "
                      "Check any non-ON consolidation drivers");