linux-kernel - [PATCH 08/20] BKL: Remove BKL from ext3 fill

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Message-Id: <1258536293-7762-9-git-send-email-jblunck@suse.de>
Date:	Wed, 18 Nov 2009 10:24:41 +0100
From:	Jan Blunck <jblunck@...e.de>
To:	linux-fsdevel@...r.kernel.org
Cc:	Linux-Kernel Mailinglist <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>, jkacur@...hat.com,
	Thomas Gleixner <tglx@...utronix.de>,
	Christoph Hellwig <hch@...radead.org>,
	Arnd Bergmann <arnd@...db.de>, matthew@....cx,
	Jan Blunck <jblunck@...e.de>, Andreas Dilger <adilger@....com>
Subject: [PATCH 08/20] BKL: Remove BKL from ext3 fill_super()

The BKL is protecting nothing than two memory allocations here.

Signed-off-by: Jan Blunck <jblunck@...e.de>
Acked-by: Jan Kara <jack@...e.cz>
---
 fs/ext3/super.c |   13 +------------
 1 files changed, 1 insertions(+), 12 deletions(-)

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 0955c3f..373fc54 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1570,19 +1570,14 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	__le32 features;
 	int err;
 
-	lock_kernel();
-
 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
-	if (!sbi) {
-		unlock_kernel();
+	if (!sbi)
 		return -ENOMEM;
-	}
 
 	sbi->s_blockgroup_lock =
 		kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
 	if (!sbi->s_blockgroup_lock) {
 		kfree(sbi);
-		unlock_kernel();
 		return -ENOMEM;
 	}
 	sb->s_fs_info = sbi;
@@ -1591,8 +1586,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	sbi->s_resgid = EXT3_DEF_RESGID;
 	sbi->s_sb_block = sb_block;
 
-	unlock_kernel();
-
 	blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);
 	if (!blocksize) {
 		printk(KERN_ERR "EXT3-fs: unable to set blocksize\n");
@@ -1998,8 +1991,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
 		"writeback");
 
-	lock_kernel();
-	unlock_kernel();
 	return 0;
 
 cantfind_ext3:
@@ -2029,8 +2020,6 @@ out_fail:
 	sb->s_fs_info = NULL;
 	kfree(sbi->s_blockgroup_lock);
 	kfree(sbi);
-	lock_kernel();
-	unlock_kernel();
 	return ret;
 }
 
-- 
1.6.4.2

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