From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_RED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B832C433E1 for ; Thu, 25 Mar 2021 11:28:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8E5661A7B for ; Thu, 25 Mar 2021 11:28:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231159AbhCYL1j (ORCPT ); Thu, 25 Mar 2021 07:27:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:35186 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231173AbhCYL0f (ORCPT ); Thu, 25 Mar 2021 07:26:35 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6BBE661A38; Thu, 25 Mar 2021 11:26:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616671586; bh=5lkXy9QAJUzflm//ImAiJZsaODEjkF9zLcTFNlU8a1U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R975u3c4jKZ6vIPPk6VxOwk0mzdmhgSgIojkxzs8GfAyO+oi0RNHNvPPhCd85g2yj +U5YxMfKA5lbmANcxJ+fZFmwlxbzMUoGA5Owd7AUSne6FTAYxXxCMnnF8W0GUTm1kY MVThrKqok9k2rDc/gxMB8zv35shLHMyiNriKGGvi376Pvupk69BcP8p6+wlSAvhJCv hy19U3/HH3c1T6qFTE5F04KklEBpZJzPhDd+4u8eY00cX6SmkHCCvUN7fd8KFdNRYY 2BJSjYL+G1SEnk6UgdEnHSWTdGPDu3KbIYzAaMI+Xzvz+jeh8894wiMJcFVE3EpQ1C +P/LOs+jevxBw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jens Axboe , Linus Torvalds , Sasha Levin , linux-pm@vger.kernel.org Subject: [PATCH AUTOSEL 5.10 20/39] kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing Date: Thu, 25 Mar 2021 07:25:39 -0400 Message-Id: <20210325112558.1927423-20-sashal@kernel.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210325112558.1927423-1-sashal@kernel.org> References: <20210325112558.1927423-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jens Axboe [ Upstream commit 15b2219facadec583c24523eed40fa45865f859f ] Don't send fake signals to PF_IO_WORKER threads, they don't accept signals. Just treat them like kthreads in this regard, all they need is a wakeup as no forced kernel/user transition is needed. Suggested-by: Linus Torvalds Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- kernel/freezer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/freezer.c b/kernel/freezer.c index dc520f01f99d..1a2d57d1327c 100644 --- a/kernel/freezer.c +++ b/kernel/freezer.c @@ -134,7 +134,7 @@ bool freeze_task(struct task_struct *p) return false; } - if (!(p->flags & PF_KTHREAD)) + if (!(p->flags & (PF_KTHREAD | PF_IO_WORKER))) fake_signal_wake_up(p); else wake_up_state(p, TASK_INTERRUPTIBLE); -- 2.30.1