From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753114AbcG2OfF (ORCPT ); Fri, 29 Jul 2016 10:35:05 -0400 Received: from fw-tnat.cambridge.arm.com ([217.140.96.140]:58833 "EHLO cam-smtp0.cambridge.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751547AbcG2OfD (ORCPT ); Fri, 29 Jul 2016 10:35:03 -0400 From: Liviu Dudau To: Greg Kroah-Hartman Cc: Brian Starkey , LKML , Nicolai Stange Subject: [PATCH] debugfs: Add proxy function for the mmap file operation Date: Fri, 29 Jul 2016 15:34:59 +0100 Message-Id: <20160729143459.2672-1-Liviu.Dudau@arm.com> X-Mailer: git-send-email 2.9.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add proxy function for the mmap file_operations hook under the full_proxy_fops structure. This is useful for providing a custom mmap routine in a driver's debugfs implementation. Cc: Nicolai Stange Signed-off-by: Liviu Dudau --- fs/debugfs/file.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 592059f..d87148a 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -168,6 +168,10 @@ FULL_PROXY_FUNC(write, ssize_t, filp, loff_t *ppos), ARGS(filp, buf, size, ppos)); +FULL_PROXY_FUNC(mmap, int, filp, + PROTO(struct file *filp, struct vm_area_struct *vma), + ARGS(filp, vma)); + FULL_PROXY_FUNC(unlocked_ioctl, long, filp, PROTO(struct file *filp, unsigned int cmd, unsigned long arg), ARGS(filp, cmd, arg)); @@ -224,6 +228,8 @@ static void __full_proxy_fops_init(struct file_operations *proxy_fops, proxy_fops->write = full_proxy_write; if (real_fops->poll) proxy_fops->poll = full_proxy_poll; + if (real_fops->mmap) + proxy_fops->mmap = full_proxy_mmap; if (real_fops->unlocked_ioctl) proxy_fops->unlocked_ioctl = full_proxy_unlocked_ioctl; } -- 2.9.0