[src/trunk]: src/sys/miscfs/genfs genfs_{compat_}getpages(): For PGO_LOCKED r...

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

details:   https://anonhg.NetBSD.org/src/rev/5762eb5b64c3
branches:  trunk
changeset: 525718:5762eb5b64c3
user:      enami <enami%NetBSD.org@localhost>
date:      Tue Apr 16 06:05:05 2002 +0000

description:
genfs_{compat_}getpages(): For PGO_LOCKED request, it is safe to return
read only page if it was due to read fault.  This avoid many unnecessary
read fault introduced by recent nfs_bio.c change.  Reviewed by chuq.

diffstat:

 sys/miscfs/genfs/genfs_vnops.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 4051e860f57a -r 5762eb5b64c3 sys/miscfs/genfs/genfs_vnops.c
--- a/sys/miscfs/genfs/genfs_vnops.c    Tue Apr 16 06:00:46 2002 +0000
+++ b/sys/miscfs/genfs/genfs_vnops.c    Tue Apr 16 06:05:05 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: genfs_vnops.c,v 1.53 2002/04/16 06:00:46 enami Exp $   */
+/*     $NetBSD: genfs_vnops.c,v 1.54 2002/04/16 06:05:05 enami Exp $   */
 
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfs_vnops.c,v 1.53 2002/04/16 06:00:46 enami Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfs_vnops.c,v 1.54 2002/04/16 06:05:05 enami Exp $");
 
 #include "opt_nfsserver.h"
 
@@ -497,7 +497,7 @@
 
        if (flags & PGO_LOCKED) {
                uvn_findpages(uobj, origoffset, ap->a_count, ap->a_m,
-                   UFP_NOWAIT|UFP_NOALLOC|UFP_NORDONLY);
+                   UFP_NOWAIT|UFP_NOALLOC| (write ? UFP_NORDONLY : 0));
 
                return (ap->a_m[ap->a_centeridx] == NULL ? EBUSY : 0);
        }
@@ -1505,7 +1505,7 @@
        }
        if (ap->a_flags & PGO_LOCKED) {
                uvn_findpages(uobj, origoffset, ap->a_count, ap->a_m,
-                   UFP_NOWAIT|UFP_NOALLOC|UFP_NORDONLY);
+                   UFP_NOWAIT|UFP_NOALLOC| (write ? UFP_NORDONLY : 0));
 
                return (ap->a_m[ap->a_centeridx] == NULL ? EBUSY : 0);
        }