linux-kernel - [PATCH 04/14] fs/9p: Drop the directory link count correctly

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Message-Id: <1297965725-25603-5-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Date:	Thu, 17 Feb 2011 23:31:55 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	v9fs-developer@...ts.sourceforge.net
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH 04/14] fs/9p: Drop the directory link count correctly

On unlink we should clear the director link count

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
---
 fs/9p/vfs_inode.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index b36711b..ae4fd90 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -509,8 +509,17 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
 		return PTR_ERR(v9fid);
 
 	retval = p9_client_remove(v9fid);
-	if (!retval)
-		drop_nlink(file_inode);
+	if (!retval) {
+		/*
+		 * directories on unlink should have zero
+		 * link count
+		 */
+		if (rmdir) {
+			clear_nlink(file_inode);
+			drop_nlink(dir);
+		} else
+			drop_nlink(file_inode);
+	}
 	return retval;
 }
 
-- 
1.7.1

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