From patchwork Wed Apr 28 16:46:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 12229711 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 9AC45C43460 for ; Wed, 28 Apr 2021 16:46:22 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 16D4461400 for ; Wed, 28 Apr 2021 16:46:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16D4461400 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 58FFD6B009F; Wed, 28 Apr 2021 12:46:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 543EB6B00A0; Wed, 28 Apr 2021 12:46:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 408ED6B00A1; Wed, 28 Apr 2021 12:46:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0086.hostedemail.com [216.40.44.86]) by kanga.kvack.org (Postfix) with ESMTP id 24A436B009F for ; Wed, 28 Apr 2021 12:46:17 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id DB4442493 for ; Wed, 28 Apr 2021 16:46:16 +0000 (UTC) X-FDA: 78082353552.29.5D9C607 Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by imf09.hostedemail.com (Postfix) with ESMTP id 8291C6000123 for ; Wed, 28 Apr 2021 16:46:09 +0000 (UTC) Received: from localhost (mailhub3.si.c-s.fr [192.168.12.233]) by localhost (Postfix) with ESMTP id 4FVkzV4qlxz9tcX; Wed, 28 Apr 2021 18:46:14 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rGxpY2iI8zAH; Wed, 28 Apr 2021 18:46:14 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4FVkzV3vmDz9tcV; Wed, 28 Apr 2021 18:46:14 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 6F0128B837; Wed, 28 Apr 2021 18:46:14 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 4PWl6TcHRv8j; Wed, 28 Apr 2021 18:46:14 +0200 (CEST) Received: from po15610vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 083158B831; Wed, 28 Apr 2021 18:46:14 +0200 (CEST) Received: by po15610vm.idsi0.si.c-s.fr (Postfix, from userid 0) id D8D336428C; Wed, 28 Apr 2021 16:46:13 +0000 (UTC) Message-Id: <6f482b6722f7a891ce335db7e02ecbdb42574e8b.1619628001.git.christophe.leroy@csgroup.eu> In-Reply-To: References: From: Christophe Leroy Subject: [RFC PATCH v1 3/4] mm/pgtable: Add stubs for {pmd/pub}_{set/clear}_huge To: Andrew Morton , Nicholas Piggin , Mike Kravetz , Mike Rapoport Cc: linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, sparclinux@vger.kernel.org, linux-mm@kvack.org Date: Wed, 28 Apr 2021 16:46:13 +0000 (UTC) X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 8291C6000123 X-Stat-Signature: dbtgaayii59nzykf1wf6igrehjwxjjzu Received-SPF: none (csgroup.eu>: No applicable sender policy available) receiver=imf09; identity=mailfrom; envelope-from=""; helo=pegase1.c-s.fr; client-ip=93.17.236.30 X-HE-DKIM-Result: none/none X-HE-Tag: 1619628369-853165 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: For architectures with no PMD and/or no PUD, add stubs similar to what we have for architectures without P4D. Signed-off-by: Christophe Leroy --- include/linux/pgtable.h | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 46b13780c2c8..d41474a2d255 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1371,10 +1371,34 @@ static inline int p4d_clear_huge(p4d_t *p4d) } #endif /* !__PAGETABLE_P4D_FOLDED */ +#ifndef __PAGETABLE_PUD_FOLDED int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot); -int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot); int pud_clear_huge(pud_t *pud); +#else +static inline int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot) +{ + return 0; +} +static inline int pud_clear_huge(pud_t *pud) +{ + return 0; +} +#endif /* !__PAGETABLE_PUD_FOLDED */ + +#ifndef __PAGETABLE_PMD_FOLDED +int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot); int pmd_clear_huge(pmd_t *pmd); +#else +static inline int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot) +{ + return 0; +} +static inline int pmd_clear_huge(pmd_t *pmd) +{ + return 0; +} +#endif /* !__PAGETABLE_PMD_FOLDED */ + int p4d_free_pud_page(p4d_t *p4d, unsigned long addr); int pud_free_pmd_page(pud_t *pud, unsigned long addr); int pmd_free_pte_page(pmd_t *pmd, unsigned long addr);