From ec528a3472ddb4e672e446ecd52206e5be91d227 Mon Sep 17 00:00:00 2001
From: Craig Rodrigues <rodrigc@FreeBSD.org>
Date: Sat, 3 Dec 2005 01:26:27 +0000
Subject: [PATCH] - Add "rw" mount option to global_opts. - In vfs_donmount(),
 parse "ro", "noro", and "rw", in order to set or   unset the MNT_RDONLY
 filesystem flag.

---
 sys/kern/vfs_mount.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c
index fa45ef9f10b2..f1124c7ac687 100644
--- a/sys/kern/vfs_mount.c
+++ b/sys/kern/vfs_mount.c
@@ -130,6 +130,7 @@ static const char *global_opts[] = {
 	"fstype",
 	"fspath",
 	"ro",
+	"rw",
 	"suid",
 	"exec",
 	NULL
@@ -542,6 +543,15 @@ vfs_donmount(struct thread *td, int fsflags, struct uio *fsoptions)
 	if (vfs_getopt(optlist, "nosymfollow", NULL, NULL) == 0)
 		fsflags |= MNT_NOSYMFOLLOW;
 
+	if (vfs_getopt(optlist, "noro", NULL, NULL) == 0)
+		fsflags &= ~MNT_RDONLY;
+
+	if (vfs_getopt(optlist, "ro", NULL, NULL) == 0)
+		fsflags |= MNT_RDONLY;
+
+	if (vfs_getopt(optlist, "rw", NULL, NULL) == 0)
+		fsflags &= ~MNT_RDONLY;
+
 	if (vfs_getopt(optlist, "snapshot", NULL, NULL) == 0)
 		fsflags |= MNT_SNAPSHOT;