linux-kernel - [PATCH 13/14] fs/9p: Workaround vfs rename rehash bug

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Message-Id: <1297965725-25603-14-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Date:	Thu, 17 Feb 2011 23:32:04 +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 13/14] 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@...ux.vnet.ibm.com>
---
 fs/9p/vfs_inode.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index eaa089c..52dacbb 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -895,6 +895,11 @@ 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)
-- 
1.7.1

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