From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 28 Feb 2011 11:34:08 +0000 (+0530)
Subject: fs/9p: Workaround vfs rename rehash bug
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=23b08e97f2c0d68c2a46a11e4fd8a4686d7351ee;p=deliverable%2Flinux.git

fs/9p: Workaround vfs rename rehash bug

This is similar to what ceph, ocfs2 and nfs does
http://kerneltrap.org/mailarchive/linux-fsdevel/2008/4/18/1498534

May be we should get vfs fixed

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
---

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index c072bb97e957..8e9d60345bc8 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -884,6 +884,11 @@ clunk_newdir:
 				clear_nlink(new_inode);
 			else
 				drop_nlink(new_inode);
+			/*
+			 * Work around vfs rename rehash bug with
+			 * FS_RENAME_DOES_D_MOVE
+			 */
+			v9fs_invalidate_inode_attr(new_inode);
 		}
 		if (S_ISDIR(old_inode->i_mode)) {
 			if (!new_inode)