linux-kernel - [PATCH 2/2] autofs: use IS_ROOT to replace parent == dentry->d

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Message-ID: <1377847338-51032-2-git-send-email-rui.xiang@huawei.com>
Date:	Fri, 30 Aug 2013 15:22:18 +0800
From:	Rui Xiang <rui.xiang@...wei.com>
To:	Ian Kent <raven@...maw.net>
CC:	<autofs@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Rui Xiang <rui.xiang@...wei.com>
Subject: [PATCH 2/2] autofs: use IS_ROOT to replace parent == dentry->d_parent

Use the helper macro !IS_ROOT to replace parent != dentry->d_parent.
Just clean up.

Signed-off-by: Rui Xiang <rui.xiang@...wei.com>
---
 fs/autofs4/root.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 92ef341..2caf36a 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -558,7 +558,7 @@ static int autofs4_dir_symlink(struct inode *dir,
 	dget(dentry);
 	atomic_inc(&ino->count);
 	p_ino = autofs4_dentry_ino(dentry->d_parent);
-	if (p_ino && dentry->d_parent != dentry)
+	if (p_ino && !IS_ROOT(dentry))
 		atomic_inc(&p_ino->count);
 
 	dir->i_mtime = CURRENT_TIME;
@@ -593,7 +593,7 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
 
 	if (atomic_dec_and_test(&ino->count)) {
 		p_ino = autofs4_dentry_ino(dentry->d_parent);
-		if (p_ino && dentry->d_parent != dentry)
+		if (p_ino && !IS_ROOT(dentry))
 			atomic_dec(&p_ino->count);
 	}
 	dput(ino->dentry);
@@ -732,7 +732,7 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t m
 	dget(dentry);
 	atomic_inc(&ino->count);
 	p_ino = autofs4_dentry_ino(dentry->d_parent);
-	if (p_ino && dentry->d_parent != dentry)
+	if (p_ino && !IS_ROOT(dentry))
 		atomic_inc(&p_ino->count);
 	inc_nlink(dir);
 	dir->i_mtime = CURRENT_TIME;
-- 
1.8.2.2


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