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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 08881C3B18C for ; Wed, 12 Feb 2020 04:19:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA3F921734 for ; Wed, 12 Feb 2020 04:19:13 +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="bpV61dLd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728093AbgBLESs (ORCPT ); Tue, 11 Feb 2020 23:18:48 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:53992 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728011AbgBLESr (ORCPT ); Tue, 11 Feb 2020 23:18:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=UfFsjnMZO/Rq4fYsTDy7TAQ1WDn/2/A9cAH2PPVx4Dc=; b=bpV61dLdwafyzPNxp6FbhzqRwJ XRn6Pl44OIU/41u7z97pqglIliE/1VqmSbRySYbVFJRuVRft/OXdYdyRLmTwpF2EOAPnFqRL15qO1 Qa9Rj/fj1zgklqzpMA+8V+9h9dosTebFWSLFNs5UN1x8Ps6gkKlgYQCJLXJJVhU5yx1wk99j4BH3n zQQzS+2vNL2Uckl/cCaJ5uig19zh2yCoKyNzbW++uU1cObrtqkEOZ16W4xaiGNzCCXxjUIz3K0+3W 6fzXvOVRw8o3SuD+lZD9WyLJDwKJ3Bp4KiGInAH4GKrU0eTmxhESHW7zSeyv7QGwzZwssYGybcAAQ L4PEpiJQ==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1jU7-0006p3-Fh; Wed, 12 Feb 2020 04:18:47 +0000 From: Matthew Wilcox To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Subject: [PATCH v2 23/25] mm: Allow large pages to be removed from the page cache Date: Tue, 11 Feb 2020 20:18:43 -0800 Message-Id: <20200212041845.25879-24-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200212041845.25879-1-willy@infradead.org> References: <20200212041845.25879-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: "Matthew Wilcox (Oracle)" page_cache_free_page() assumes compound pages 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 08b5cd4ce47b..e74a22af7e4e 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -248,7 +248,7 @@ static void page_cache_free_page(struct address_space *mapping, freepage(page); if (PageTransHuge(page) && !PageHuge(page)) { - page_ref_sub(page, HPAGE_PMD_NR); + page_ref_sub(page, hpage_nr_pages(page)); VM_BUG_ON_PAGE(page_count(page) <= 0, page); } else { put_page(page); -- 2.25.0