5382 pvn_getpages handles lengths <= PAGESIZE just fine

@@ -25,10 +25,11 @@
  *      All rights reserved.
  */
 
 /*
  * Copyright (c) 2013, Joyent, Inc. All rights reserved.
+ * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
  */
 
 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/systm.h>

@@ -3679,17 +3680,12 @@
                 return (EFAULT);                /* beyond EOF */
         }
 
         mutex_exit(&rp->r_statelock);
 
-        if (len <= PAGESIZE) {
-                error = nfs_getapage(vp, off, len, protp, pl, plsz,
+        error = pvn_getpages(nfs_getapage, vp, off, len, protp, pl, plsz,
                     seg, addr, rw, cr);
-        } else {
-                error = pvn_getpages(nfs_getapage, vp, off, len, protp,
-                    pl, plsz, seg, addr, rw, cr);
-        }
 
         switch (error) {
         case NFS_EOF:
                 nfs_purge_caches(vp, NFS_NOPURGE_DNLC, cr);
                 goto retry;

@@ -3699,11 +3695,11 @@
 
         return (error);
 }
 
 /*
- * Called from pvn_getpages or nfs_getpage to get a particular page.
+ * Called from pvn_getpages to get a particular page.
  */
 /* ARGSUSED */
 static int
 nfs_getapage(vnode_t *vp, u_offset_t off, size_t len, uint_t *protp,
         page_t *pl[], size_t plsz, struct seg *seg, caddr_t addr,