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=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 B0AC5C48BE5 for ; Wed, 16 Jun 2021 10:32:23 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 67778613B9 for ; Wed, 16 Jun 2021 10:32:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 67778613B9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id F2F0C6B006C; Wed, 16 Jun 2021 06:32:22 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F04C16B0070; Wed, 16 Jun 2021 06:32:22 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D7EDA6B0071; Wed, 16 Jun 2021 06:32:22 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0100.hostedemail.com [216.40.44.100]) by kanga.kvack.org (Postfix) with ESMTP id A46476B006C for ; Wed, 16 Jun 2021 06:32:22 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 4415BFB69 for ; Wed, 16 Jun 2021 10:32:22 +0000 (UTC) X-FDA: 78259222524.12.65A0977 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf09.hostedemail.com (Postfix) with ESMTP id 2C03D6000143 for ; Wed, 16 Jun 2021 10:32:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623839541; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Yl30ugH1lwCBgurpvBTL5w9+PIy6WUfvyh3uwvyfRVE=; b=LmyQ/rsCnb9i1V25Fa/zdVqauUbifCxdLRKArxQAtIVQ8zV2hTenMUFcvS2uXejSYDGM3A 3h0E5+tlMaELw4HJeG+L8rH3T/LPKhbA0YKJ74TmAffoG8yvZ1BqcWmlIWKZn7K+DPN1bm qmJpW0n/BmcQ5Y+M6qNn1WC0MCQswGU= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-564-LHGPIrFYMsaYW2b36JRx9A-1; Wed, 16 Jun 2021 06:32:17 -0400 X-MC-Unique: LHGPIrFYMsaYW2b36JRx9A-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5C6BA101F006; Wed, 16 Jun 2021 10:32:16 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-118-65.rdu2.redhat.com [10.10.118.65]) by smtp.corp.redhat.com (Postfix) with ESMTP id D20225D6D1; Wed, 16 Jun 2021 10:32:13 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20210614201435.1379188-28-willy@infradead.org> References: <20210614201435.1379188-28-willy@infradead.org> <20210614201435.1379188-1-willy@infradead.org> To: "Matthew Wilcox (Oracle)" Cc: dhowells@redhat.com, akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Christoph Hellwig , Jeff Layton , "Kirill A . Shutemov" , Vlastimil Babka , William Kucharski Subject: Re: [PATCH v11 27/33] mm/writeback: Add folio_wait_stable() MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <816003.1623839532.1@warthog.procyon.org.uk> Date: Wed, 16 Jun 2021 11:32:12 +0100 Message-ID: <816004.1623839532@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b="LmyQ/rsC"; spf=none (imf09.hostedemail.com: domain of dhowells@redhat.com has no SPF policy when checking 170.10.133.124) smtp.mailfrom=dhowells@redhat.com; dmarc=pass (policy=none) header.from=redhat.com X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 2C03D6000143 X-Stat-Signature: 6ujfbptiwqdewi4ddhb1kju5eqcwcszc X-HE-Tag: 1623839535-379584 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: Matthew Wilcox (Oracle) wrote: > Move wait_for_stable_page() into the folio compatibility file. > folio_wait_stable() avoids a call to compound_head() and is 14 bytes > smaller than wait_for_stable_page() was. The net text size grows by 16 > bytes as a result of this patch. We can also remove thp_head() as this > was the last user. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig > Acked-by: Jeff Layton > Acked-by: Kirill A. Shutemov > Acked-by: Vlastimil Babka > Reviewed-by: William Kucharski Reviewed-by: David Howells