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Date:	Sun,  2 Sep 2007 22:20:42 -0400
From:	"Josef 'Jeff' Sipek" <jsipek@...sunysb.edu>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	hch@...radead.org, viro@....linux.org.uk,
	bharata@...ux.vnet.ibm.com, j.blunck@...harburg.de,
	Erez Zadok <ezk@...sunysb.edu>,
	"Josef 'Jeff' Sipek" <jsipek@...sunysb.edu>
Subject: [PATCH 19/32] Unionfs: partial_lookup update

From: Erez Zadok <ezk@...sunysb.edu>

Handle new semantics of lookup_backend.

Signed-off-by: Erez Zadok <ezk@...sunysb.edu>
Signed-off-by: Josef 'Jeff' Sipek <jsipek@...sunysb.edu>
---
 fs/unionfs/lookup.c |   22 ++++++++++++++++------
 1 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/fs/unionfs/lookup.c b/fs/unionfs/lookup.c
index e4e8470..d05daa5 100644
--- a/fs/unionfs/lookup.c
+++ b/fs/unionfs/lookup.c
@@ -425,20 +425,30 @@ out:
 	return ERR_PTR(err);
 }
 
-/* This is a utility function that fills in a unionfs dentry */
+/*
+ * This is a utility function that fills in a unionfs dentry.
+ *
+ * Returns: 0 (ok), or -ERRNO if an error occurred.
+ */
 int unionfs_partial_lookup(struct dentry *dentry)
 {
 	struct dentry *tmp;
 	struct nameidata nd = { .flags = 0 };
+	int err = -ENOSYS;
 
 	tmp = unionfs_lookup_backend(dentry, &nd, INTERPOSE_PARTIAL);
-	if (!tmp)
-		return 0;
-	if (IS_ERR(tmp))
-		return PTR_ERR(tmp);
+	if (!tmp) {
+		err = 0;
+		goto out;
+	}
+	if (IS_ERR(tmp)) {
+		err = PTR_ERR(tmp);
+		goto out;
+	}
 	/* need to change the interface */
 	BUG_ON(tmp != dentry);
-	return -ENOSYS;
+out:
+	return err;
 }
 
 /* The dentry cache is just so we have properly sized dentries. */
-- 
1.5.2.2.238.g7cbf2f2

-
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