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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 EBE3DC432BE for ; Tue, 27 Jul 2021 12:04:16 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9A41961A38 for ; Tue, 27 Jul 2021 12:04:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9A41961A38 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id E389B6B0036; Tue, 27 Jul 2021 08:04:15 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DE8786B005D; Tue, 27 Jul 2021 08:04:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CFE556B006C; Tue, 27 Jul 2021 08:04:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0072.hostedemail.com [216.40.44.72]) by kanga.kvack.org (Postfix) with ESMTP id BB6556B0036 for ; Tue, 27 Jul 2021 08:04:15 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 5907F824999B for ; Tue, 27 Jul 2021 12:04:15 +0000 (UTC) X-FDA: 78408234870.28.CCF2CC8 Received: from jabberwock.ucw.cz (jabberwock.ucw.cz [46.255.230.98]) by imf27.hostedemail.com (Postfix) with ESMTP id DB57F7001962 for ; Tue, 27 Jul 2021 12:04:14 +0000 (UTC) Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id A88A81C0B76; Tue, 27 Jul 2021 14:04:13 +0200 (CEST) Date: Tue, 27 Jul 2021 14:04:13 +0200 From: Pavel Machek To: David Hildenbrand Cc: Michal Hocko , Evan Green , Andrew Morton , Alex Shi , Alistair Popple , Jens Axboe , Johannes Weiner , Joonsoo Kim , "Matthew Wilcox (Oracle)" , Miaohe Lin , Minchan Kim , Vlastimil Babka , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org Subject: Re: [PATCH v2] mm: Enable suspend-only swap spaces Message-ID: <20210727120413.GB32265@duo.ucw.cz> References: <20210709105012.v2.1.I09866d90c6de14f21223a03e9e6a31f8a02ecbaf@changeid> <30dddfb1-388c-a593-0987-73e821216da9@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="QKdGvSO+nmPlgiQ/" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: DB57F7001962 Authentication-Results: imf27.hostedemail.com; dkim=none; spf=none (imf27.hostedemail.com: domain of pavel@ucw.cz has no SPF policy when checking 46.255.230.98) smtp.mailfrom=pavel@ucw.cz; dmarc=none X-Stat-Signature: oqgxaebgkkhnx6z6rqqhqt4jzgbmhdqn X-HE-Tag: 1627387454-233417 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: --QKdGvSO+nmPlgiQ/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > Let's take a look at hibernate() callers: >=20 > drivers/mfd/tps65010.c: calls hibernate() from IRQ contex, based on HW > event No it does not. Look again. > kernel/power/autosleep.c: calls hibernate() when it thinks it might be > a good time to go to sleep Ok, you are right, it is there. But I don't believe anyone uses this configuration. Best regards, Pavel --=20 http://www.livejournal.com/~pavelmachek --QKdGvSO+nmPlgiQ/ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCYP/2PQAKCRAw5/Bqldv6 8t0DAKCr+H62AWwU7hlQPxiFE3r6Q/k46wCgqJGkAHYArzZ/clI1dsQrc9Vij0o= =6EnC -----END PGP SIGNATURE----- --QKdGvSO+nmPlgiQ/--