linux-kernel - [PATCH 2/3] fs: befs: check flags field to validate the superblock state

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Message-Id: <03eea80e0188d9cab423cf517659280afd04d7b2.1470745951.git.salah.triki@gmail.com>
Date:	Tue,  9 Aug 2016 13:32:55 +0100
From:	Salah Triki <salah.triki@...il.com>
To:	akpm@...ux-foundation.org, viro@...iv.linux.org.uk,
	luisbg@....samsung.com
Cc:	linux-kernel@...r.kernel.org, salah.triki@...il.com
Subject: [PATCH 2/3] fs: befs: check flags field to validate the superblock state

flags field records the superblock state, so check if it is equal to
BEFS_DIRTY.

Signed-off-by: Salah Triki <salah.triki@...il.com>
---
 fs/befs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/befs/super.c b/fs/befs/super.c
index 5ab75e8..79be409 100644
--- a/fs/befs/super.c
+++ b/fs/befs/super.c
@@ -103,7 +103,7 @@ befs_check_sb(struct super_block *sb)
 		return BEFS_ERR;
 	}
 
-	if (befs_sb->log_start != befs_sb->log_end) {
+	if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) {
 		befs_error(sb, "Filesystem not clean! There are blocks in the "
 			   "journal. You must boot into BeOS and mount this volume "
 			   "to make it clean.");
-- 
1.9.1