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define PUFFS_KFLAG_WTCACHE, which makes the page cache write-through

This commit is contained in:
pooka 2007-04-22 18:02:05 +00:00
parent a29785b911
commit bc38632c58
2 changed files with 12 additions and 4 deletions
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5
sys/fs/puffs/puffs_msgif.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: puffs_msgif.h,v 1.27 2007/04/16 13:03:26 pooka Exp $ */ /* $NetBSD: puffs_msgif.h,v 1.28 2007/04/22 18:02:05 pooka Exp $ */
/* /*
* Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved. * Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved.
@ -105,7 +105,8 @@ struct puffs_kargs {
#define PUFFS_KFLAG_ALLOWCTL 0x01 /* ioctl/fcntl commands allowed */ #define PUFFS_KFLAG_ALLOWCTL 0x01 /* ioctl/fcntl commands allowed */
#define PUFFS_KFLAG_NOCACHE 0x02 /* flush page cache immediately */ #define PUFFS_KFLAG_NOCACHE 0x02 /* flush page cache immediately */
#define PUFFS_KFLAG_ALLOPS 0x04 /* ignore pa_vnopmask, send all */ #define PUFFS_KFLAG_ALLOPS 0x04 /* ignore pa_vnopmask, send all */
#define PUFFS_KFLAG_MASK 0x07 #define PUFFS_KFLAG_WTCACHE 0x08 /* page cache is write-through */
#define PUFFS_KFLAG_MASK 0x0f
#define PUFFS_FHFLAG_DYNAMIC 0x01 #define PUFFS_FHFLAG_DYNAMIC 0x01
#define PUFFS_FHFLAG_NFSV2 0x02 #define PUFFS_FHFLAG_NFSV2 0x02

11
sys/fs/puffs/puffs_vnops.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: puffs_vnops.c,v 1.61 2007/04/20 11:56:35 pooka Exp $ */ /* $NetBSD: puffs_vnops.c,v 1.62 2007/04/22 18:02:05 pooka Exp $ */
/* /*
* Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved. * Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved.
@ -33,7 +33,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: puffs_vnops.c,v 1.61 2007/04/20 11:56:35 pooka Exp $"); __KERNEL_RCSID(0, "$NetBSD: puffs_vnops.c,v 1.62 2007/04/22 18:02:05 pooka Exp $");
#include <sys/param.h> #include <sys/param.h>
#include <sys/fstrans.h> #include <sys/fstrans.h>
@ -1572,11 +1572,18 @@ puffs_write(void *v)
} }
} }
/* synchronous I/O? */
if (error == 0 && ap->a_ioflag & IO_SYNC) { if (error == 0 && ap->a_ioflag & IO_SYNC) {
simple_lock(&vp->v_interlock); simple_lock(&vp->v_interlock);
error = VOP_PUTPAGES(vp, trunc_page(origoff), error = VOP_PUTPAGES(vp, trunc_page(origoff),
round_page(uio->uio_offset), round_page(uio->uio_offset),
PGO_CLEANIT | PGO_SYNCIO); PGO_CLEANIT | PGO_SYNCIO);
/* write though page cache? */
} else if (error == 0 && pmp->pmp_flags & PUFFS_KFLAG_WTCACHE) {
simple_lock(&vp->v_interlock);
error = VOP_PUTPAGES(vp, trunc_page(origoff),
round_page(uio->uio_offset), PGO_CLEANIT);
} }
puffs_updatenode(vp, uflags); puffs_updatenode(vp, uflags);