Add noclusterr and noclusterw options. The noclusterr and noclusterw

disable clustered read and write, respectively.

Reviewed by:	bde

3 files changed, 18 insertions, 4 deletions

diff --git a/sbin/mount/mntopts.h b/sbin/mount/mntopts.h
index 38daf7f..5175070 100644
--- a/sbin/mount/mntopts.h
+++ b/sbin/mount/mntopts.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)mntopts.h	8.7 (Berkeley) 3/29/95
- *	$Id: mntopts.h,v 1.9 1997/08/24 21:02:48 steve Exp $
+ *	$Id: mntopts.h,v 1.10 1997/08/25 21:02:21 bde Exp $
  */
 
 struct mntopt {
@@ -52,6 +52,8 @@ struct mntopt {
 #define MOPT_UNION		{ "union",	0, MNT_UNION, 0 }
 #define MOPT_USERQUOTA		{ "userquota",	0, 0, 0 }
 #define MOPT_GROUPQUOTA		{ "groupquota",	0, 0, 0 }
+#define MOPT_NOCLUSTERR		{ "clusterr",	1, MNT_NOCLUSTERR, 0 }
+#define MOPT_NOCLUSTERW		{ "clusterw",	1, MNT_NOCLUSTERW, 0 }
 
 /* Control flags. */
 #define MOPT_FORCE		{ "force",	0, MNT_FORCE, 0 }
@@ -77,7 +79,9 @@ struct mntopt {
 	MOPT_NOEXEC,							\
 	MOPT_NOSUID,							\
 	MOPT_RDONLY,							\
-	MOPT_UNION
+	MOPT_UNION,							\
+	MOPT_NOCLUSTERR,						\
+	MOPT_NOCLUSTERW
 
 void getmntopts __P((const char *, const struct mntopt *, int *, int *));
 extern int getmnt_silent;
diff --git a/sbin/mount/mount.8 b/sbin/mount/mount.8
index 4468340..bda4ad1 100644
--- a/sbin/mount/mount.8
+++ b/sbin/mount/mount.8
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)mount.8	8.8 (Berkeley) 6/16/94
-.\"	$Id: mount.8,v 1.17 1997/08/24 17:51:12 joerg Exp $
+.\"	$Id: mount.8,v 1.18 1997/08/24 21:02:48 steve Exp $
 .\"
 .Dd June 16, 1994
 .Dt MOUNT 8
@@ -128,6 +128,10 @@ filesystems.
 This filesystem should be skipped when mount is run with the
 .Fl a
 flag.
+.It noclusterr
+Disable read clustering.
+.It noclusterw
+Disable write clustering.
 .It nodev
 Do not interpret character or block special devices on the file system.
 This option is useful for a server that has file systems containing
diff --git a/sbin/mount/mount.c b/sbin/mount/mount.c
index bc1c8f4..c9b23ac 100644
--- a/sbin/mount/mount.c
+++ b/sbin/mount/mount.c
@@ -42,7 +42,7 @@ static const char copyright[] =
 static char sccsid[] = "@(#)mount.c	8.25 (Berkeley) 5/8/95";
 #else
 static const char rcsid[] =
-	"$Id$";
+	"$Id: mount.c,v 1.19 1997/08/24 21:02:49 steve Exp $";
 #endif
 #endif /* not lint */
 
@@ -95,6 +95,8 @@ static struct opt {
 	{ MNT_RDONLY,		"read-only" },
 	{ MNT_SYNCHRONOUS,	"synchronous" },
 	{ MNT_UNION,		"union" },
+	{ MNT_NOCLUSTERR,	"noclusterr" },
+	{ MNT_NOCLUSTERW,	"noclusterw" },
 	{ NULL }
 };
 
@@ -595,6 +597,10 @@ putfsent(ent)
 		printf(",async");
 	if (ent->f_flags & MNT_NOATIME)
 		printf(",noatime");
+	if (ent->f_flags & MNT_NOCLUSTERR)
+		printf(",noclusterr");
+	if (ent->f_flags & MNT_NOCLUSTERW)
+		printf(",noclusterw");
 
 	if ((fst = getfsspec(ent->f_mntfromname)))
 		printf("\t%u %u\n", fst->fs_freq, fst->fs_passno);