linux-kernel - [PATCH] 9p: Fix v9fs show

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Message-Id: <1248156236-3005-3-git-send-email-adkulkar@umail.iu.edu>
Date:	Tue, 21 Jul 2009 00:03:52 -0600
From:	Abhishek Kulkarni <adkulkar@...il.iu.edu>
To:	linux-kernel@...r.kernel.org
Cc:	v9fs-developer@...ts.sourceforge.net,
	Abhishek Kulkarni <adkulkar@...il.iu.edu>
Subject: [PATCH] 9p: Fix v9fs show_options

Add the delimiter ',' before the options when they are passed
and check if no option parameters are passed to prevent displaying
NULL in /proc/mounts.

Signed-off-by: Abhishek Kulkarni <adkulkar@...il.iu.edu>
---
:100644 100644 2f8a3f2... 072dce0... M	fs/9p/vfs_super.c
 fs/9p/vfs_super.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 2f8a3f2..072dce0 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -218,8 +218,8 @@ static void v9fs_kill_super(struct super_block *s)
 static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt)
 {
 	struct v9fs_session_info *v9ses = mnt->mnt_sb->s_fs_info;
-
-	seq_printf(m, "%s", v9ses->options);
+	if (v9ses->options != NULL)
+		seq_printf(m, ",%s", v9ses->options);
 	return 0;
 }
 
-- 
1.6.0.4

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