From 9b4b351346b41d923d69adec865814fdaac4dba9 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 3 Feb 2010 08:27:35 -0500
Subject: [PATCH] NFS: Don't clobber the attribute type in nfs_update_inode()
If the NFS_ATTR_FATTR_TYPE field isn't set in fattr->valid, then we should
not set the S_IFMT part of inode->i_mode.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
fs/nfs/inode.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index faa091865ad0..f141bde7756a 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1261,8 +1261,10 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
if (fattr->valid & NFS_ATTR_FATTR_MODE) {
if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) {
+ umode_t newmode = inode->i_mode & S_IFMT;
+ newmode |= fattr->mode & S_IALLUGO;
+ inode->i_mode = newmode;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
- inode->i_mode = fattr->mode;
}
} else if (server->caps & NFS_CAP_MODE)
invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
--
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