5382 pvn_getpages handles lengths <= PAGESIZE just fine

*** 24,33 ****
--- 24,34 ----
   * Use is subject to license terms.
   */
  
  /*
   * Copyright (c) 2013, Joyent, Inc. All rights reserved.
+  * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
   */
  
  #include <sys/param.h>
  #include <sys/t_lock.h>
  #include <sys/systm.h>
*** 1424,1435 ****
          return (error);
  }
  
  
  /*
!  * Called from pvn_getpages or pcfs_getpage to get a particular page.
!  * When we are called the pcfs is already locked.
   */
  /*ARGSUSED*/
  static int
  pcfs_getapage(
          struct vnode *vp,
--- 1425,1436 ----
          return (error);
  }
  
  
  /*
!  * Called from pvn_getpages to get a particular page.  When we are called
!  * the pcfs is already locked.
   */
  /*ARGSUSED*/
  static int
  pcfs_getapage(
          struct vnode *vp,
*** 1599,1615 ****
                  return (err);
          if (protp != NULL)
                  *protp = PROT_ALL;
  
          ASSERT((off & PAGEOFFSET) == 0);
!         if (len <= PAGESIZE) {
!                 err = pcfs_getapage(vp, off, len, protp, pl,
!                     plsz, seg, addr, rw, cr);
!         } else {
!                 err = pvn_getpages(pcfs_getapage, vp, off,
!                     len, protp, pl, plsz, seg, addr, rw, cr);
!         }
          pc_unlockfs(fsp);
          return (err);
  }
  
  
--- 1600,1612 ----
                  return (err);
          if (protp != NULL)
                  *protp = PROT_ALL;
  
          ASSERT((off & PAGEOFFSET) == 0);
!         err = pvn_getpages(pcfs_getapage, vp, off, len, protp, pl, plsz,
!             seg, addr, rw, cr);
! 
          pc_unlockfs(fsp);
          return (err);
  }