[PATCH] mount.nilfs2: add "uhelper=" option

[Jiro SEKIBA <jir-hfpbi5WX9J54Eiagz67IpQ@public.gmane.org>]

Hi,

This is a patch against mount.nilfs2.

I'm trying to add nilfs2 support on several software stack to control
nilfs2 partition from palimpsest(gnome-disk-utility).  And found
that the option is required to handled properly.

Standard mount command takes uhelper=<helper_name> option to tell the mount
is under <helper_name> control.  When this option is specified,
umount.<helper_name> is called on unmount time.

This option is used when mount is triggered by udisks. udisks is a dbus
service daemon.  The service is used by Palimpsest.  To controll nilfs2
partition from palimpsest, interpret the option is required.

Signed-off-by: Jiro SEKIBA <jir-hfpbi5WX9J54Eiagz67IpQ@public.gmane.org>
---
 sbin/mount/mount_opts.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/sbin/mount/mount_opts.c b/sbin/mount/mount_opts.c
index 9db599f..0c6ca79 100644
--- a/sbin/mount/mount_opts.c
+++ b/sbin/mount/mount_opts.c
@@ -98,7 +98,7 @@ static const struct opt_map opt_map[] = {
 };
 
 static const char *opt_loopdev, *opt_vfstype, *opt_offset, *opt_encryption,
-	*opt_speed, *opt_comment;
+	*opt_speed, *opt_comment, *opt_uhelper;
 
 static struct string_opt_map {
 	char *tag;
@@ -111,6 +111,7 @@ static struct string_opt_map {
 	{ "encryption=", 0, &opt_encryption },
 	{ "speed=", 0, &opt_speed },
 	{ "comment=", 1, &opt_comment },
+	{ "uhelper=", 1, &opt_uhelper },
 	{ NULL, 0, NULL }
 };
 
-- 
1.5.6.5

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