Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp641835imm; Thu, 26 Jul 2018 09:27:35 -0700 (PDT) X-Google-Smtp-Source: AAOMgpfjiGJcPmjF4XqjfV1d6uNBuiWEhM94To/1wobT35V4WyGjNc/zmp2e85AGoKBAnHFT9zw6 X-Received: by 2002:a62:5047:: with SMTP id e68-v6mr2816344pfb.157.1532622455188; Thu, 26 Jul 2018 09:27:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532622455; cv=none; d=google.com; s=arc-20160816; b=UCPSeKKAwNVunTBe/p0x7Y9dc1Zu4IwEv3An7Rbfzk5LwAJCAzBLNXFUhJYXc2FSMv xoJ3tomLXur0O/MVVuyHXZXlnRnOrW9h0cUDsWY+AewCgH6pRlFLxDVJho7Dk3mgVD+p ynqJ9SVoHcdQOhK4pcTT/Pv00A6BNsBnSLX6t5kwSLmYJvyQ/ynD5YpTRebvtMU2nQLu xEjP4EcGsOUBwd8UrXn1sg2EeNhyhg9p+nmV9DmYmLLGrAsFVynA4teGQ/a3ieVv1IHf a7snmPuXAfQB5wY+mvu2HWrRsiuRu+WGAT2IZM/6YCN5Hx4I4ldQDDDoP6cfoNVrv971 VeCg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=GYmE8MuLW9pkW/YDledi7vKu32Gbtq6gV3ln0YlzrGw=; b=KBNHQMoN3PfMGa9BrE/k/CFa9lhyenzFFi5+oz6U1C1EdEN/HnSDJhaFfJc91DKmX+ /cfZIJzikELa5MitN9lSv0bSYoAwJq+uMRnvOHPszh6YZipl49MfKSV6qhpjKMc2XqmN xq78qR5ez1g3zZHKYQ1lmV5zmWfEVR1hZSdAPnCsaXG9sCtjzpE7yPvR0UdXgrffx3Cl HbweDXKE+QOAP3k99OUdWPTUz/jK/xWygKrLEfQ+63gNBz7tcBA7usmP6D9Y8+0/OM/2 IAS5/BXyeOHXcktgtIBQteP19v/q+N+9UfmG7FGo1sJ4HL2/qyjfYS/Q7GwHcZlhxlHw Krpg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id p67-v6si1671632pfg.295.2018.07.26.09.27.20; Thu, 26 Jul 2018 09:27:35 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731294AbeGZRlf (ORCPT + 99 others); Thu, 26 Jul 2018 13:41:35 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:32808 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730250AbeGZRlf (ORCPT ); Thu, 26 Jul 2018 13:41:35 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 753EC77886; Thu, 26 Jul 2018 16:24:02 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.34.27.30]) by smtp.corp.redhat.com (Postfix) with SMTP id 6F52B1C55D; Thu, 26 Jul 2018 16:24:01 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Thu, 26 Jul 2018 18:24:02 +0200 (CEST) Date: Thu, 26 Jul 2018 18:24:00 +0200 From: Oleg Nesterov To: "Eric W. Biederman" Cc: Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, Wen Yang , majiang Subject: Re: [PATCH 18/20] signal: Add calculate_sigpending() Message-ID: <20180726162400.GB467@redhat.com> References: <87efft5ncd.fsf_-_@xmission.com> <20180724032419.20231-18-ebiederm@xmission.com> <20180726132050.GA32718@redhat.com> <87tvom58tz.fsf@xmission.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87tvom58tz.fsf@xmission.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Thu, 26 Jul 2018 16:24:02 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Thu, 26 Jul 2018 16:24:02 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'oleg@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/26, Eric W. Biederman wrote: > > > Easy to fix, but perhaps we can simply add recalc_sigpending() into > > schedule_tail() ? It already does more than just finish_task_switch/etc. > > > > This way we do not need the new helper (which btw can only be used by > > copy_process). > > The problem I have with reusing recalc_sigpending is that it does not > set TIF_SIGPENDING if (freezing || klp_patch_pending). Ah, indeed, you are right. Oleg.