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authorhannken <hannken@NetBSD.org>2007-12-02 13:56:15 +0000
committerhannken <hannken@NetBSD.org>2007-12-02 13:56:15 +0000
commitd556dc98b0f75faaa4eff532000a425bb669dd50 (patch)
tree57708fbc87a2d1c54d66576841e47901a53fdf48 /sys/dev/fss.c
parent587600728d3d1bdb8ea4937aaf2f510a046665a2 (diff)
Fscow_run(): add a flag "bool data_valid" to note still valid data.
Buffers run through copy-on-write are marked B_COWDONE. This condition is valid until the buffer has run through bwrite() and gets cleared from biodone(). Welcome to 4.99.39. Reviewed by: YAMAMOTO Takashi <yamt@netbsd.org>
Diffstat (limited to 'sys/dev/fss.c')
-rw-r--r--sys/dev/fss.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/dev/fss.c b/sys/dev/fss.c
index d025d1e2876..7c897611186 100644
--- a/sys/dev/fss.c
+++ b/sys/dev/fss.c
@@ -1,4 +1,4 @@
-/* $NetBSD: fss.c,v 1.38 2007/11/26 19:01:35 pooka Exp $ */
+/* $NetBSD: fss.c,v 1.39 2007/12/02 13:56:15 hannken Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@@ -43,7 +43,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fss.c,v 1.38 2007/11/26 19:01:35 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fss.c,v 1.39 2007/12/02 13:56:15 hannken Exp $");
#include "fss.h"
@@ -126,7 +126,7 @@ dev_type_strategy(fss_strategy);
dev_type_dump(fss_dump);
dev_type_size(fss_size);
-static int fss_copy_on_write(void *, struct buf *);
+static int fss_copy_on_write(void *, struct buf *, bool);
static inline void fss_error(struct fss_softc *, const char *, ...);
static int fss_create_files(struct fss_softc *, struct fss_set *,
off_t *, struct lwp *);
@@ -492,7 +492,7 @@ fss_umount_hook(struct mount *mp, int forced)
* backing store if needed.
*/
static int
-fss_copy_on_write(void *v, struct buf *bp)
+fss_copy_on_write(void *v, struct buf *bp, bool data_valid)
{
int s;
u_int32_t cl, ch, c;