From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752207AbeBIOwe (ORCPT ); Fri, 9 Feb 2018 09:52:34 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:48278 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751097AbeBIOwd (ORCPT ); Fri, 9 Feb 2018 09:52:33 -0500 From: Waiman Long To: Thomas Gleixner , Linus Torvalds , Tejun Heo , Ingo Molnar Cc: linux-kernel@vger.kernel.org, Waiman Long Subject: [PATCH] kthread: Export kthread_data() Date: Fri, 9 Feb 2018 09:52:21 -0500 Message-Id: <1518187941-29275-1-git-send-email-longman@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When multiple kernel threads are created to cooperatively work on a common task, we may need a convenient way to access data that are specific to each kthread. The kthread_data() function fits this need. However, it was not visible to kthreads started in a kernel module. To solve this problem, the kthread_data() function is now exported allowing kthreads from kernel modules to use it. Signed-off-by: Waiman Long --- kernel/kthread.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/kthread.c b/kernel/kthread.c index cd50e99..a71d461 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -156,6 +156,7 @@ void *kthread_data(struct task_struct *task) { return to_kthread(task)->data; } +EXPORT_SYMBOL(kthread_data); /** * kthread_probe_data - speculative version of kthread_data() -- 1.8.3.1