From c2b93e0699723700f886ce17bb65ffd771195a6d Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 7 May 2013 11:28:31 -0400 Subject: [PATCH] cifs: only set ops for inodes in I_NEW state It's generally not safe to reset the inode ops once they've been set. In the case where the inode was originally thought to be a directory and then later found to be a DFS referral, this can lead to an oops when we try to trigger an inode op on it after changing the ops to the blank referral operations. Cc: Reported-and-Tested-by: Sachin Prabhu Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/inode.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index fc3025199cb3..20efd81266c6 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -171,7 +171,8 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) if (fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL) inode->i_flags |= S_AUTOMOUNT; - cifs_set_ops(inode); + if (inode->i_state & I_NEW) + cifs_set_ops(inode); } void