From patchwork Sat Nov 25 19:29:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 10075013 X-Patchwork-Delegate: dvhart@infradead.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2D88760353 for ; Sat, 25 Nov 2017 19:35:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2141428E34 for ; Sat, 25 Nov 2017 19:35:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 141FD28E4B; Sat, 25 Nov 2017 19:35:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A6FFB28E34 for ; Sat, 25 Nov 2017 19:35:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751227AbdKYTek (ORCPT ); Sat, 25 Nov 2017 14:34:40 -0500 Received: from mga11.intel.com ([192.55.52.93]:11561 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751430AbdKYTei (ORCPT ); Sat, 25 Nov 2017 14:34:38 -0500 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Nov 2017 11:34:37 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,454,1505804400"; d="scan'208";a="7058738" Received: from ibanaga-mobl.ger.corp.intel.com (HELO localhost) ([10.249.254.18]) by fmsmga001.fm.intel.com with ESMTP; 25 Nov 2017 11:34:35 -0800 From: Jarkko Sakkinen To: platform-driver-x86@vger.kernel.org, x86@kernel.org Cc: linux-kernel@vger.kernel.org, Jarkko Sakkinen , Alexander Viro , linux-fsdevel@vger.kernel.org (open list:FILESYSTEMS (VFS and infrastructure)) Subject: [PATCH v6 09/11] fs/pipe.c: export create_pipe_files() and replace_fd() Date: Sat, 25 Nov 2017 21:29:26 +0200 Message-Id: <20171125193132.24321-10-jarkko.sakkinen@linux.intel.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171125193132.24321-1-jarkko.sakkinen@linux.intel.com> References: <20171125193132.24321-1-jarkko.sakkinen@linux.intel.com> Sender: platform-driver-x86-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Exported create_pipe_files() and replace_fd() because the SGX driver needs to be able to setup pipes in order to communicate with the helper process that hosts the Launch Enclave (LE). The pipe creation will be done in the init-callback supplied to call_usermodehelper_setup(). The driver will use two pipes for communication with the LE hosting process: * One for writing SIGSTRUCT blobs. * One for reading EINITTOKEN blobs. Signed-off-by: Jarkko Sakkinen --- fs/file.c | 1 + fs/pipe.c | 1 + 2 files changed, 2 insertions(+) diff --git a/fs/file.c b/fs/file.c index 1fc7fbbb4510..b1fa28919b22 100644 --- a/fs/file.c +++ b/fs/file.c @@ -871,6 +871,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags) spin_unlock(&files->file_lock); return err; } +EXPORT_SYMBOL_GPL(replace_fd); SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags) { diff --git a/fs/pipe.c b/fs/pipe.c index 97e5be897753..ee33a84127e7 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -784,6 +784,7 @@ int create_pipe_files(struct file **res, int flags) iput(inode); return err; } +EXPORT_SYMBOL_GPL(create_pipe_files); static int __do_pipe_flags(int *fd, struct file **files, int flags) {