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,URIBL_BLOCKED,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 80FD9C83004 for ; Wed, 29 Apr 2020 13:42:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 57B88206D6 for ; Wed, 29 Apr 2020 13:42:12 +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="BXbcKwKX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728688AbgD2Nlx (ORCPT ); Wed, 29 Apr 2020 09:41:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726815AbgD2Ng7 (ORCPT ); Wed, 29 Apr 2020 09:36:59 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 59D08C035494; Wed, 29 Apr 2020 06:36:59 -0700 (PDT) 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=oT+8lwQ/brzvgB0YZUbOhpyCrOjpQvYYX3M679KauI8=; b=BXbcKwKXX4J6B5Yq6W27whKHfW RMek7pSE6UZ0GxybudeKSgbhH+cCqv73jI+nOszKGY+bcB1YX5s0ZujbIdT7mi9j7Pjrk9OxuC5Sb huG+X0qvDsNQCTStg4wPMddhLvrNa3hYx3iLc3O6V2F9JIVhKGbXVXLiph/NBGINeCpP8aLaMdOIW i88lUe/CgX4vEcAHNsPPgJQVVW2/GgC9bz0T/COBMLSY51Hz63YO6oQXEaN0yScVr2ky0dCyEEy7l sbv7AWy0m6Rk4qr2fgjIN88Bmxcc+Y7J4vg2/uIrPMMkYzx686hj+vm+QOhGWjABWNCcRxKZKUghe UB4OtL8Q==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jTmtX-0005uS-5w; Wed, 29 Apr 2020 13:36:59 +0000 From: Matthew Wilcox To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 03/25] mm: Introduce thp_order Date: Wed, 29 Apr 2020 06:36:35 -0700 Message-Id: <20200429133657.22632-4-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200429133657.22632-1-willy@infradead.org> References: <20200429133657.22632-1-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)" Like compound_order() except 0 when THP is disabled. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/huge_mm.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index e944f9757349..1f6245091917 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -276,6 +276,11 @@ static inline unsigned long thp_size(struct page *page) return page_size(page); } +static inline unsigned int thp_order(struct page *page) +{ + return compound_order(page); +} + struct page *follow_devmap_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd, int flags, struct dev_pagemap **pgmap); struct page *follow_devmap_pud(struct vm_area_struct *vma, unsigned long addr, @@ -335,6 +340,7 @@ static inline int hpage_nr_pages(struct page *page) } #define thp_size(x) PAGE_SIZE +#define thp_order(x) 0U static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma) { -- 2.26.2