linux-kernel - [PATCH] ext2: Silence warnings about non-uptodate buffers

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Date:	Wed, 28 May 2008 23:56:09 +0200
From:	Jan Kara <jack@...e.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-ext4@...r.kernel.org,
	Jan Kara <jack@...e.cz>
Subject: [PATCH] ext2: Silence warnings about non-uptodate buffers

When underlying block device becomes unavailable (e.g. someone pulling an
USB stick from under us), kernel produces warning about non-uptodate buffer
(superblock) being marked dirty. Silence these warnings by making buffer
uptodate before marking it dirty.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/ext2/super.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index ef50cbc..2941bc3 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1092,6 +1092,7 @@ static void ext2_commit_super (struct super_block * sb,
 			       struct ext2_super_block * es)
 {
 	es->s_wtime = cpu_to_le32(get_seconds());
+	set_buffer_uptodate(EXT2_SB(sb)->s_sbh);
 	mark_buffer_dirty(EXT2_SB(sb)->s_sbh);
 	sb->s_dirt = 0;
 }
@@ -1101,6 +1102,7 @@ static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es)
 	es->s_free_blocks_count = cpu_to_le32(ext2_count_free_blocks(sb));
 	es->s_free_inodes_count = cpu_to_le32(ext2_count_free_inodes(sb));
 	es->s_wtime = cpu_to_le32(get_seconds());
+	set_buffer_uptodate(EXT2_SB(sb)->s_sbh);
 	mark_buffer_dirty(EXT2_SB(sb)->s_sbh);
 	sync_dirty_buffer(EXT2_SB(sb)->s_sbh);
 	sb->s_dirt = 0;
-- 
1.5.2.4

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