From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f70.google.com (mail-oi0-f70.google.com [209.85.218.70]) by kanga.kvack.org (Postfix) with ESMTP id 4626D6B068B for ; Fri, 11 May 2018 15:08:34 -0400 (EDT) Received: by mail-oi0-f70.google.com with SMTP id 5-v6so3421192oiq.6 for ; Fri, 11 May 2018 12:08:34 -0700 (PDT) Received: from foss.arm.com (foss.arm.com. [217.140.101.70]) by mx.google.com with ESMTP id u57-v6si1342359otd.305.2018.05.11.12.08.33 for ; Fri, 11 May 2018 12:08:33 -0700 (PDT) From: Jean-Philippe Brucker Subject: [PATCH v2 11/40] mm: export symbol find_get_task_by_vpid Date: Fri, 11 May 2018 20:06:12 +0100 Message-Id: <20180511190641.23008-12-jean-philippe.brucker@arm.com> In-Reply-To: <20180511190641.23008-1-jean-philippe.brucker@arm.com> References: <20180511190641.23008-1-jean-philippe.brucker@arm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, linux-mm@kvack.org Cc: joro@8bytes.org, will.deacon@arm.com, robin.murphy@arm.com, alex.williamson@redhat.com, tn@semihalf.com, liubo95@huawei.com, thunder.leizhen@huawei.com, xieyisheng1@huawei.com, xuzaibo@huawei.com, ilias.apalodimas@linaro.org, jonathan.cameron@huawei.com, liudongdong3@huawei.com, shunyong.yang@hxt-semitech.com, nwatters@codeaurora.org, okaya@codeaurora.org, jcrouse@codeaurora.org, rfranz@cavium.com, dwmw2@infradead.org, jacob.jun.pan@linux.intel.com, yi.l.liu@intel.com, ashok.raj@intel.com, kevin.tian@intel.com, baolu.lu@linux.intel.com, robdclark@gmail.com, christian.koenig@amd.com, bharatku@xilinx.com, rgummal@xilinx.com, akpm@linux-foundation.org Userspace drivers implemented with VFIO might want to bind sub-processes to their devices. In a VFIO ioctl, they provide a pid that is used to find a task and its mm. Since VFIO can be built as a module, export the find_get_task_by_vpid symbol. Cc: akpm@linux-foundation.org Signed-off-by: Jean-Philippe Brucker --- Here I didn't add a comment because neighbouring functions that get exported don't have a comment either, and the name seems fairly clear. --- kernel/pid.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/pid.c b/kernel/pid.c index 157fe4b19971..0b6d3201c42d 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -355,6 +355,7 @@ struct task_struct *find_get_task_by_vpid(pid_t nr) return task; } +EXPORT_SYMBOL_GPL(find_get_task_by_vpid); struct pid *get_task_pid(struct task_struct *task, enum pid_type type) { -- 2.17.0