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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 7A492C433ED for ; Mon, 5 Apr 2021 09:08:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 550FE613A4 for ; Mon, 5 Apr 2021 09:08:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238764AbhDEJI6 (ORCPT ); Mon, 5 Apr 2021 05:08:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:50706 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238259AbhDEJGj (ORCPT ); Mon, 5 Apr 2021 05:06:39 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D33C361002; Mon, 5 Apr 2021 09:06:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617613593; bh=5lkXy9QAJUzflm//ImAiJZsaODEjkF9zLcTFNlU8a1U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TbkHDDKYmdeceZ6L8FUuVI10iniqPv5tZ0X34lmlYk9aJs5jdaUfEbW2Rn5nPEE5c Es1kWTMzF8gHi7XlEWJHA45S3ydZZuGJU3iyzmS8Inu3lAj5fUtiOOk5pRAkkPk30p Ji8/cFI2uAJQo12w6JW0K7WKYKmoQA5Kjm30pQA8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Linus Torvalds , Jens Axboe , Sasha Levin Subject: [PATCH 5.10 020/126] kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing Date: Mon, 5 Apr 2021 10:53:02 +0200 Message-Id: <20210405085031.696287678@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210405085031.040238881@linuxfoundation.org> References: <20210405085031.040238881@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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