From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx144.netapp.com ([216.240.21.25]:13094 "EHLO mx144.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751901AbbHaTuZ (ORCPT ); Mon, 31 Aug 2015 15:50:25 -0400 From: To: CC: , , , Andy Adamson Subject: [PATCH 05/16] NFS add same file check and flush source and destination for COPY Date: Mon, 31 Aug 2015 15:49:55 -0400 Message-ID: <1441050606-40897-6-git-send-email-andros@netapp.com> In-Reply-To: <1441050606-40897-1-git-send-email-andros@netapp.com> References: <1441050606-40897-1-git-send-email-andros@netapp.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-nfs-owner@vger.kernel.org List-ID: From: Andy Adamson Signed-off-by: Andy Adamson --- fs/nfs/nfs4file.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index cc3353a..7c6f651 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -136,6 +136,21 @@ static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in, struct file *file_out, loff_t pos_out, size_t count, int flags) { + struct inode *in_inode = file_inode(file_in); + struct inode *out_inode = file_inode(file_out); + int ret; + + if (in_inode == out_inode) + return -EINVAL; + + /* flush any pending writes */ + ret = nfs_sync_inode(in_inode); + if (ret) + return ret; + ret = nfs_sync_inode(out_inode); + if (ret) + return ret; + return nfs42_proc_copy(file_in, pos_in, file_out, pos_out, count); } -- 1.8.3.1