linux-kernel - [PATCH 1/1 linux-next] hfs: atomically read inode size

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Message-Id: <20170123175245.3272-1-fabf@skynet.be>
Date:   Mon, 23 Jan 2017 18:52:45 +0100
From:   Fabian Frederick <fabf@...net.be>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        fabf@...net.be
Subject: [PATCH 1/1 linux-next] hfs: atomically read inode size

See i_size_read() comments in include/linux/fs.h

Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 fs/hfs/mdb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index a3ec3ae..482081b 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -38,7 +38,7 @@ static int hfs_get_last_session(struct super_block *sb,
 
 	/* default values */
 	*start = 0;
-	*size = sb->s_bdev->bd_inode->i_size >> 9;
+	*size = i_size_read(sb->s_bdev->bd_inode) >> 9;
 
 	if (HFS_SB(sb)->session >= 0) {
 		te.cdte_track = HFS_SB(sb)->session;
-- 
2.9.3