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=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 9D57AC43461 for ; Tue, 8 Sep 2020 19:55:49 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4185A20768 for ; Tue, 8 Sep 2020 19:55:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="siIrylDE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4185A20768 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 671DE6B0003; Tue, 8 Sep 2020 15:55:48 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 621BE6B0037; Tue, 8 Sep 2020 15:55:48 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5381C6B0055; Tue, 8 Sep 2020 15:55:48 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0102.hostedemail.com [216.40.44.102]) by kanga.kvack.org (Postfix) with ESMTP id 3E3F56B0003 for ; Tue, 8 Sep 2020 15:55:48 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id F32F61EF1 for ; Tue, 8 Sep 2020 19:55:47 +0000 (UTC) X-FDA: 77240949534.02.wing67_47068d9270d7 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin02.hostedemail.com (Postfix) with ESMTP id CFB7210038015 for ; Tue, 8 Sep 2020 19:55:47 +0000 (UTC) X-HE-Tag: wing67_47068d9270d7 X-Filterd-Recvd-Size: 2336 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf01.hostedemail.com (Postfix) with ESMTP for ; Tue, 8 Sep 2020 19:55:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=uQ1v1ZN6J1s7VCvADzjIvSaoII5GQuQCy7QbOI6LwDs=; b=siIrylDExxt8yCFvosLU/uNtnr 2bCcrJibECYBDF0BXLsTlMowKw0W6dVQLNaQ2UMiDncuGmBXu1NRkhrFumvN6du6uglM2qwcOysct doW6F9y+Vz7uxQ/Qp+Ca4UsvO1nQU0zOAC+cQ9h1EDytg+ceNEhaR22nxxTwjHqvA2psYVrSpsln3 dUB5HGUzFZehpBbfbBEfdodgsCXnaGBmeJhRyxkXCTu+0+g0F7h4/2ywi00GoyRA3OVaOrRpctvAC aF/ISkosbYd4lTtXi2H7/qc8B0dD2rHzPfJSgvSFvLOsoFm+Lb7EAVThjqrgbgIuVv3R7QLLFQgz3 DoWQTpzA==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kFjiQ-0006lC-3a; Tue, 08 Sep 2020 19:55:42 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org, Andrew Morton Cc: "Matthew Wilcox (Oracle)" , "Kirill A . Shutemov" , Huang Ying Subject: [PATCH 01/11] mm/filemap: Fix page cache removal for arbitrary sized THPs Date: Tue, 8 Sep 2020 20:55:28 +0100 Message-Id: <20200908195539.25896-2-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200908195539.25896-1-willy@infradead.org> References: <20200908195539.25896-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: CFB7210038015 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 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: page_cache_free_page() assumes THPs are PMD_SIZE; fix that assumption. Signed-off-by: Matthew Wilcox (Oracle) --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/filemap.c b/mm/filemap.c index 1aaea26556cc..c60b94fd74ec 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -249,7 +249,7 @@ static void page_cache_free_page(struct address_space= *mapping, freepage(page); =20 if (PageTransHuge(page) && !PageHuge(page)) { - page_ref_sub(page, HPAGE_PMD_NR); + page_ref_sub(page, thp_nr_pages(page)); VM_BUG_ON_PAGE(page_count(page) <=3D 0, page); } else { put_page(page); --=20 2.28.0