From: Jan Kara <jack@suse.cz>
Date: Wed, 21 Dec 2011 16:35:34 +0000 (+0100)
Subject: reiserfs: Fix quota mount option parsing
X-Git-Tag: accepted/tizen/common/20141203.182822~5564^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a06d789b424190e9f59da391681f908486db2554;p=platform%2Fkernel%2Flinux-arm64.git

reiserfs: Fix quota mount option parsing

When jqfmt mount option is not specified on remount, we mistakenly clear
s_jquota_fmt value stored in superblock. Fix the problem.

CC: stable@kernel.org
CC: reiserfs-devel@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
---

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 14363b9..f9eaa4a 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1164,7 +1164,8 @@ static void handle_quota_files(struct super_block *s, char **qf_names,
 			kfree(REISERFS_SB(s)->s_qf_names[i]);
 		REISERFS_SB(s)->s_qf_names[i] = qf_names[i];
 	}
-	REISERFS_SB(s)->s_jquota_fmt = *qfmt;
+	if (*qfmt)
+		REISERFS_SB(s)->s_jquota_fmt = *qfmt;
 }
 #endif