[src/yamt-pagecache]: src/sys/miscfs/genfs g/c #if 1

[yamt <yamt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/4390deee8f69
branches:  yamt-pagecache
changeset: 770841:4390deee8f69
user:      yamt <yamt%NetBSD.org@localhost>
date:      Wed Nov 30 14:31:29 2011 +0000

description:
g/c #if 1
comment

diffstat:

 sys/miscfs/genfs/genfs_io.c |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (42 lines):

diff -r 9dcf8bbffb13 -r 4390deee8f69 sys/miscfs/genfs/genfs_io.c
--- a/sys/miscfs/genfs/genfs_io.c       Sat Nov 26 15:37:50 2011 +0000
+++ b/sys/miscfs/genfs/genfs_io.c       Wed Nov 30 14:31:29 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: genfs_io.c,v 1.53.2.4 2011/11/26 15:19:06 yamt Exp $   */
+/*     $NetBSD: genfs_io.c,v 1.53.2.5 2011/11/30 14:31:29 yamt Exp $   */
 
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfs_io.c,v 1.53.2.4 2011/11/26 15:19:06 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfs_io.c,v 1.53.2.5 2011/11/30 14:31:29 yamt Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1094,9 +1094,12 @@
                        pg->flags |= PG_BUSY;
                        UVM_PAGE_OWN(pg, "genfs_putpages");
 
-#if 1 /* XXX notyet */
                        /*
                         * first look backward.
+                        *
+                        * XXX implement PG_PAGER1 incompatibility check.
+                        * probably it's better to make PG_NEEDCOMMIT a first
+                        * level citizen for uvm/genfs.
                         */
 
                        npages = MIN(maxpages >> 1, off >> PAGE_SHIFT);
@@ -1113,9 +1116,6 @@
                                        memset(&pgs[npages - nback], 0,
                                            nback * sizeof(pgs[0]));
                        }
-#else
-                       nback = 0;
-#endif
 
                        /*
                         * then plug in our page of interest.