linux-ext4 - [PATCH 1/4] ext3: Remove outdated comment about lock

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Date:	Mon, 14 Dec 2009 12:59:18 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	ext4 development <linux-ext4@...r.kernel.org>
CC:	Jan Kara <jack@...e.cz>, Theodore Tso <tytso@....edu>
Subject: [PATCH 1/4] ext3: Remove outdated comment about lock_super()

From: Theodore Ts'o <tytso@....edu>

ext3_fill_super() is no longer called by read_super(), and it is no
longer called with the superblock locked.  The
unlock_super()/lock_super() is no longer present, so this comment is
entirely superfluous.

Crossport of 32ed5058ce90024efcd811254b4b1de0468099df

Signed-off-by: Eric Sandeen <sandeen@...hat.com>
---
 fs/ext3/super.c |    9 +--------
 1 files changed, 1 insertions(+), 8 deletions(-)

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 427496c..bed624c 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1974,14 +1974,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	}
 
 	ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
-	/*
-	 * akpm: core read_super() calls in here with the superblock locked.
-	 * That deadlocks, because orphan cleanup needs to lock the superblock
-	 * in numerous places.  Here we just pop the lock - it's relatively
-	 * harmless, because we are now ready to accept write_super() requests,
-	 * and aviro says that's the only reason for hanging onto the
-	 * superblock lock.
-	 */
+
 	EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
 	ext3_orphan_cleanup(sb, es);
 	EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
-- 1.6.0.6

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