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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9DAAC433F5 for ; Sat, 8 Jan 2022 16:44:55 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5FD6B6B0095; Sat, 8 Jan 2022 11:44:42 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 586FA6B0099; Sat, 8 Jan 2022 11:44:42 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1DF966B0095; Sat, 8 Jan 2022 11:44:42 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0093.hostedemail.com [216.40.44.93]) by kanga.kvack.org (Postfix) with ESMTP id 06F696B0098 for ; Sat, 8 Jan 2022 11:44:42 -0500 (EST) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id C3B0C81050AA for ; Sat, 8 Jan 2022 16:44:41 +0000 (UTC) X-FDA: 79007693562.10.1F0CC24 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf04.hostedemail.com (Postfix) with ESMTP id 7F5AA40011 for ; Sat, 8 Jan 2022 16:44:41 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D9E2660DE1; Sat, 8 Jan 2022 16:44:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8ADC3C36AE3; Sat, 8 Jan 2022 16:44:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641660280; bh=x2bPhjVOBxVWcMrIjPF084KnyexnW3t58B9hfB9b+7k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=If/YBksUFp4siLcDN32aGTZYhYp8jKQmFbx/sACXi1qXOPrHk1oe2qmd5xmmJpaXc 9iYEIUy4PgG5ABTeNST4TSNCFLtHSJHo1hTtD5dK75jnum1hKbCu2SZo4HbR1XT5AP qeV7HTWOS42HaFmKroGlhmqqLd3HSM8bSNynBCfSnE9yXm4LA6BsH7STIOehwMJSQw AfmRI6Iq40t0b7fHdld8UPyC7akRCFoBzSV11sSKYd5uTQaXoC8Juz9paQ3R8m1L3K YBFNZ/pl2PPzCgdazBePXcOqonqdPRkkZzCJHoGQq+mkzYpQ40aHoi38cDX90Vh8+9 mq+2O2hCuwyyA== From: Andy Lutomirski To: Andrew Morton , Linux-MM Cc: Nicholas Piggin , Anton Blanchard , Benjamin Herrenschmidt , Paul Mackerras , Randy Dunlap , linux-arch , x86@kernel.org, Rik van Riel , Dave Hansen , Peter Zijlstra , Nadav Amit , Mathieu Desnoyers , Andy Lutomirski Subject: [PATCH 21/23] x86/mm: Use unlazy_mm_irqs_off() in TLB flush IPIs Date: Sat, 8 Jan 2022 08:44:06 -0800 Message-Id: <3f3daaf3df26e963a38f4d7d05069e866cb6e3e7.1641659630.git.luto@kernel.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: References: MIME-Version: 1.0 X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 7F5AA40011 X-Stat-Signature: tkcpgf1x7qeusysi5biro6rk7ebwt63b Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="If/YBksU"; spf=pass (imf04.hostedemail.com: domain of luto@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=luto@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-HE-Tag: 1641660281-279134 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: When IPI-flushing a lazy mm, we switch away from the lazy mm. Use unlazy_mm_irqs_off() so the scheduler knows we did this. Signed-off-by: Andy Lutomirski --- arch/x86/mm/tlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index e502565176b9..225b407812c7 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -843,7 +843,7 @@ static void flush_tlb_func(void *info) * This should be rare, with native_flush_tlb_multi() skipping * IPIs to lazy TLB mode CPUs. */ - switch_mm_irqs_off(NULL, &init_mm, NULL); + unlazy_mm_irqs_off(); return; } =20 --=20 2.33.1