From nobody Fri Jun 19 11:02:54 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2074C3A59D for ; Mon, 4 Apr 2022 21:23:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1381015AbiDDVWU (ORCPT ); Mon, 4 Apr 2022 17:22:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379296AbiDDQzh (ORCPT ); Mon, 4 Apr 2022 12:55:37 -0400 Received: from wout5-smtp.messagingengine.com (wout5-smtp.messagingengine.com [64.147.123.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6748B2D for ; Mon, 4 Apr 2022 09:53:39 -0700 (PDT) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.west.internal (Postfix) with ESMTP id 0987E3201D2F; Mon, 4 Apr 2022 12:53:38 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Mon, 04 Apr 2022 12:53:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sent.com; h=cc :cc:content-transfer-encoding:date:date:from:from:in-reply-to :message-id:mime-version:reply-to:reply-to:sender:subject :subject:to:to; s=fm3; bh=iE5HYjsyDrhb8gHe12sa/zLc2S6ikdXgUfBcf8 +yKi0=; b=SyzsSDStAvh1o2yCDwOVwCws8cpu+I55eGXZfR7qnsRSPBR4M6Hl1F 9ZH2pHc7PsT1hs3PQhQvHtD0JQwSR0eNXKQShLQMZAPqmDLQtxYLmvpR//z0E++N 99/p5M/9QWsqFMzyxO2TLGozFUWKsSAFcNspT9Sp0GXc6bS8mKGcYy7/u59L1oAu 7Gi73zaUZNGHl2Z6gY2XtdYAKqDYs2z8CbPH1vCWZOMB979dJ2taMaTl2gFAIZp1 jt2wVTqqM0lQ1bG3hGQtgGtg1aF0+Fruhw9NbPkQDrUJ5CTfEMBwGbzS3NadQJCo AU7EL1ViDgV6HazeuLFvMYIMI4cvKang== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :from:from:in-reply-to:message-id:mime-version:reply-to:reply-to :sender:subject:subject:to:to:x-me-proxy:x-me-proxy:x-me-sender :x-me-sender:x-sasl-enc; s=fm3; bh=iE5HYjsyDrhb8gHe12sa/zLc2S6ik dXgUfBcf8+yKi0=; b=oBW5VwmG+K3jmQoLcOiV8hb76nF90lzElkDaeTLAClAhD ObVW9yy6g5U4zsvNcAbMOl8qZdTVJDctAcf4x7Xc1DkwhfP9qzJc5QO/JqtqCXJn OgzQMRXAZA13EloVpNIlhlSPUoE8H0Dd/E+oLWlBHlmzHn+E+Wl4jDdIpForQr9a e1HcO6g8gKtymM3ow+E7jxFGxWKqwf9q6oj3yrJJLxPgUtxI4hpGjduZLdFsocQo lC9kXVl4OyXsPhLiF7yY90xO2RblQkHPLprgcDX9xlFy/nPGNHUd4WUpOzFHSNKe Co5oeX4gDN1l7o1/Tgd6lAmhN6sUmd39efQw69AiA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvvddrudejvddguddtvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofhrggfgsedtqhertdertddtnecuhfhrohhmpegkihcujggr nhcuoeiiihdrhigrnhesshgvnhhtrdgtohhmqeenucggtffrrghtthgvrhhnpeetieeitd ejgffhfeeukeejvdeufedtvddulefhteduffeigfefteehgefhvdegudenucffohhmrghi nhepkhgvrhhnvghlrdhorhhgnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpe hmrghilhhfrhhomhepiihirdihrghnsehsvghnthdrtghomh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 4 Apr 2022 12:53:37 -0400 (EDT) From: Zi Yan To: linux-mm@kvack.org Cc: Matthew Wilcox , Michal Hocko , Naoya Horiguchi , Andrew Morton , linux-kernel@vger.kernel.org, Zi Yan , Naoya Horiguchi Subject: [PATCH] mm: migrate: use thp_order instead of HPAGE_PMD_ORDER for new page allocation. Date: Mon, 4 Apr 2022 12:53:25 -0400 Message-Id: <20220404165325.1883267-1-zi.yan@sent.com> X-Mailer: git-send-email 2.35.1 Reply-To: Zi Yan MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Zi Yan With folios support, it is possible to have other than HPAGE_PMD_ORDER THPs, in the form of folios, in the system. Use thp_order() to correctly determine the source page order during migration. Fixes: d68eccad3706 ("mm/filemap: Allow large folios to be added to the pag= e cache") Reported-by: Naoya Horiguchi Link: https://lore.kernel.org/linux-mm/20220404132908.GA785673@u2004/ Signed-off-by: Zi Yan --- mm/mempolicy.c | 2 +- mm/migrate.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 6b34c5d5e65a..88a74bc4cba5 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1209,7 +1209,7 @@ static struct page *new_page(struct page *page, unsig= ned long start) struct page *thp; =20 thp =3D alloc_hugepage_vma(GFP_TRANSHUGE, vma, address, - HPAGE_PMD_ORDER); + thp_order(page)); if (!thp) return NULL; prep_transhuge_page(thp); diff --git a/mm/migrate.c b/mm/migrate.c index 4639dfc2b7ee..b58b96fdb174 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1553,7 +1553,7 @@ struct page *alloc_migration_target(struct page *page= , unsigned long private) */ gfp_mask &=3D ~__GFP_RECLAIM; gfp_mask |=3D GFP_TRANSHUGE; - order =3D HPAGE_PMD_ORDER; + order =3D thp_order(page); } zidx =3D zone_idx(page_zone(page)); if (is_highmem_idx(zidx) || zidx =3D=3D ZONE_MOVABLE) --=20 2.35.1