From 48b2a9219319dfec012b2481ead41bfd5e445227 Mon Sep 17 00:00:00 2001
From: Bruce Evans <bde@FreeBSD.org>
Date: Mon, 24 Apr 1995 17:07:08 +0000
Subject: [PATCH] Add ioctls DIOCGSLICEINFO and DIOCSYNCSLICEINFO.  The latter
 isn't finished or tested.

---
 sys/kern/subr_diskslice.c | 25 ++++++++++++++++++++++++-
 sys/sys/diskslice.h       |  6 +++++-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/sys/kern/subr_diskslice.c b/sys/kern/subr_diskslice.c
index eae044bac5c..ba5ae99e8f5 100644
--- a/sys/kern/subr_diskslice.c
+++ b/sys/kern/subr_diskslice.c
@@ -43,7 +43,7 @@
  *	from: wd.c,v 1.55 1994/10/22 01:57:12 phk Exp $
  *	from: @(#)ufs_disksubr.c	7.16 (Berkeley) 5/4/91
  *	from: ufs_disksubr.c,v 1.8 1994/06/07 01:21:39 phk Exp $
- *	$Id: subr_diskslice.c,v 1.8 1995/03/04 11:42:27 bde Exp $
+ *	$Id: subr_diskslice.c,v 1.9 1995/04/24 06:04:36 bde Exp $
  */
 
 #include <sys/param.h>
@@ -281,6 +281,8 @@ dsioctl(dev, cmd, data, flags, ssp, strat, setgeom)
 	d_strategy_t *strat;
 	ds_setgeom_t *setgeom;
 {
+	u_char	bopenmask;
+	u_char	copenmask;
 	int	error;
 	struct disklabel *lp;
 	int	old_wlabel;
@@ -314,6 +316,10 @@ dsioctl(dev, cmd, data, flags, ssp, strat, setgeom)
 			= &lp->d_partitions[dkpart(dev)];
 		return (0);
 
+	case DIOCGSLICEINFO:
+		*(struct diskslices *)data = *ssp;
+		return (0);
+
 	case DIOCSBAD:
 		if (slice == WHOLE_DISK_SLICE)
 			return (ENODEV);
@@ -355,6 +361,23 @@ dsioctl(dev, cmd, data, flags, ssp, strat, setgeom)
 		set_ds_label(ssp, slice, lp);
 		return (0);
 
+	case DIOCSYNCSLICEINFO:
+		if (slice != WHOLE_DISK_SLICE || dkpart(dev) != RAW_PART)
+			return (EINVAL);
+		bopenmask = sp->ds_bopenmask;
+		copenmask = sp->ds_copenmask;
+		sp->ds_bopenmask &= ~(1 << RAW_PART);
+		sp->ds_copenmask &= ~(1 << RAW_PART);
+		sp->ds_openmask &= ~(1 << RAW_PART);
+		lp = malloc(sizeof *lp, M_DEVBUF, M_WAITOK);
+		*lp = *ssp->dss_slices[WHOLE_DISK_SLICE].ds_label;
+		error = dsopen("SYNCSLICES", dev, 0, &ssp, lp, strat, setgeom);
+		sp->ds_bopenmask = bopenmask;
+		sp->ds_copenmask = copenmask;
+		sp->ds_openmask = bopenmask | copenmask;
+		free(lp, M_DEVBUF);
+		return (error);
+
 	case DIOCWDINFO:
 		error = dsioctl(dev, DIOCSDINFO, data, flags, ssp, strat,
 				setgeom);
diff --git a/sys/sys/diskslice.h b/sys/sys/diskslice.h
index 99030e406f9..4dd597bf388 100644
--- a/sys/sys/diskslice.h
+++ b/sys/sys/diskslice.h
@@ -23,14 +23,18 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: diskslice.h,v 1.4 1995/02/22 21:24:21 bde Exp $
+ *	$Id: diskslice.h,v 1.5 1995/03/04 11:05:44 bde Exp $
  */
 
 #ifndef _SYS_DISKSLICE_H_
 #define	_SYS_DISKSLICE_H_
 
+#include <sys/ioccom.h>
+
 #define	BASE_SLICE		2
 #define	COMPATIBILITY_SLICE	0
+#define	DIOCGSLICEINFO		_IOR('d', 111, struct diskslices)
+#define	DIOCSYNCSLICEINFO	_IOW('d', 112, int)
 #define	MAX_SLICES		32
 #define	WHOLE_DISK_SLICE	1