From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751888AbeDJQlV (ORCPT ); Tue, 10 Apr 2018 12:41:21 -0400 Received: from smtp2.provo.novell.com ([137.65.250.81]:58850 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751272AbeDJQlU (ORCPT ); Tue, 10 Apr 2018 12:41:20 -0400 From: Davidlohr Bueso To: peterz@infradead.org, tglx@linutronix.de, mingo@kernel.org Cc: longman@redhat.com, dave@stgolabs.net, linux-kernel@vger.kernel.org, Davidlohr Bueso Subject: [PATCH 1/2] locking/rtmutex: Delete save_state member of struct rt_mutex Date: Tue, 10 Apr 2018 09:27:49 -0700 Message-Id: <20180410162750.8290-1-dave@stgolabs.net> X-Mailer: git-send-email 2.13.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This field (debug) is unused. Furthermore it looks like a result of rtmutex from -rt into upstream, where it serves to determine if the wakeup is for a task blocked on a "sleeping spinlock", iow if this is a regular rt_mutex_lock() or rt_spin_lock(). Of course, upstream we only have regular rt_mutexes, thus we can safely assume nothing will be done with this field anyway. There is also the fact that this is under debug. Signed-off-by: Davidlohr Bueso --- include/linux/rtmutex.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h index 1b92a28dd672..572606acd700 100644 --- a/include/linux/rtmutex.h +++ b/include/linux/rtmutex.h @@ -32,7 +32,6 @@ struct rt_mutex { struct rb_root_cached waiters; struct task_struct *owner; #ifdef CONFIG_DEBUG_RT_MUTEXES - int save_state; const char *name, *file; int line; void *magic; -- 2.13.6