linux-kernel - [PATCH 1/3] fs/block_dev.c: need not to check inode->i_bdev in bd

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Message-Id: <1348659510-9059-1-git-send-email-clouds.yan@gmail.com>
Date:	Wed, 26 Sep 2012 19:38:28 +0800
From:	Yan Hong <clouds.yan@...il.com>
To:	akpm@...ux-foundation.org
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] fs/block_dev.c: need not to check inode->i_bdev in bd_forget()

Its only caller evict() has promised a non-NULL inode->i_bdev.

Signed-off-by: Yan Hong <clouds.yan@...il.com>
---
 fs/block_dev.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 38e721b..9bdbd9b 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -669,11 +669,9 @@ void bd_forget(struct inode *inode)
 	struct block_device *bdev = NULL;
 
 	spin_lock(&bdev_lock);
-	if (inode->i_bdev) {
-		if (!sb_is_blkdev_sb(inode->i_sb))
-			bdev = inode->i_bdev;
-		__bd_forget(inode);
-	}
+	if (!sb_is_blkdev_sb(inode->i_sb))
+		bdev = inode->i_bdev;
+	__bd_forget(inode);
 	spin_unlock(&bdev_lock);
 
 	if (bdev)
-- 
1.7.9.5

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