linux-kernel - [PATCH 13/17] Unionfs: use dget

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Message-Id: <12032170522320-git-send-email-ezk@cs.sunysb.edu>
Date:	Sat, 16 Feb 2008 21:57:22 -0500
From:	Erez Zadok <ezk@...sunysb.edu>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	viro@....linux.org.uk, hch@...radead.org,
	Erez Zadok <ezk@...sunysb.edu>
Subject: [PATCH 13/17] Unionfs: use dget_parent in revalidation code

Signed-off-by: Erez Zadok <ezk@...sunysb.edu>
---
 fs/unionfs/dentry.c |   13 ++++---------
 1 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/fs/unionfs/dentry.c b/fs/unionfs/dentry.c
index a956b94..f8f65e1 100644
--- a/fs/unionfs/dentry.c
+++ b/fs/unionfs/dentry.c
@@ -410,15 +410,10 @@ bool __unionfs_d_revalidate_chain(struct dentry *dentry, struct nameidata *nd,
 		goto out;
 	}
 
-	/*
-	 * lock all dentries in chain, in child to parent order.
-	 * if failed, then sleep for a little, then retry.
-	 */
-	dtmp = dentry->d_parent;
-	for (i = chain_len-1; i >= 0; i--) {
-		chain[i] = dget(dtmp);
-		dtmp = dtmp->d_parent;
-	}
+	/* grab all dentries in chain, in child to parent order */
+	dtmp = dentry;
+	for (i = chain_len-1; i >= 0; i--)
+		dtmp = chain[i] = dget_parent(dtmp);
 
 	/*
 	 * call __unionfs_d_revalidate_one() on each dentry, but in parent
-- 
1.5.2.2

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