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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 DB9A7C433E6 for ; Wed, 24 Feb 2021 20:06:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 78E2464E6C for ; Wed, 24 Feb 2021 20:06:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 78E2464E6C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0E3648D001A; Wed, 24 Feb 2021 15:06:46 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 06C676B00DC; Wed, 24 Feb 2021 15:06:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E9DE68D001A; Wed, 24 Feb 2021 15:06:45 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0057.hostedemail.com [216.40.44.57]) by kanga.kvack.org (Postfix) with ESMTP id D06CD6B00DB for ; Wed, 24 Feb 2021 15:06:45 -0500 (EST) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 9F3B7EFBE for ; Wed, 24 Feb 2021 20:06:45 +0000 (UTC) X-FDA: 77854244370.13.65FFC00 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf16.hostedemail.com (Postfix) with ESMTP id 86CE780192E9 for ; Wed, 24 Feb 2021 20:06:44 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 7510A64E24; Wed, 24 Feb 2021 20:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1614197204; bh=axrXK3Oqhx1hjzIewrX2nB/fM2JIWPXy9yjR0sOCWEk=; h=Date:From:To:Subject:In-Reply-To:From; b=uy1GrTPOnHm+QhRD2/mV45xZHGV99B6bfz0icWb1IMOcwMk6Chbap4/PnJJXoWzNW oOC+xRExfTGg5WODWecGVV1gppmcettqENiJTLlpheDALHiv0FID03oShASIQj5CH6 /KVg2Md6E7Ndwr/lsCKDQnNWTrTcrFfaSYYh57Zs= Date: Wed, 24 Feb 2021 12:06:42 -0800 From: Andrew Morton To: akpm@linux-foundation.org, anshuman.khandual@arm.com, dansilsby@gmail.com, kirill.shutemov@linux.intel.com, linux-mm@kvack.org, maobibo@loongson.cn, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, paulburton@kernel.org, ralf@linux-mips.org, rppt@linux.ibm.com, torvalds@linux-foundation.org, tsbogend@alpha.franken.de Subject: [patch 111/173] mm/huge_memory.c: update tlb entry if pmd is changed Message-ID: <20210224200642.rrDUZyoaP%akpm@linux-foundation.org> In-Reply-To: <20210224115824.1e289a6895087f10c41dd8d6@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 86CE780192E9 X-Stat-Signature: zwwy6p6umgdnpykppmtnhiwuxnwuqfuf Received-SPF: none (linux-foundation.org>: No applicable sender policy available) receiver=imf16; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1614197204-389139 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: From: Bibo Mao Subject: mm/huge_memory.c: update tlb entry if pmd is changed When set_pmd_at is called in function do_huge_pmd_anonymous_page, new tlb entry can be added by software on MIPS platform. Here add update_mmu_cache_pmd when pmd entry is set, and update_mmu_cache_pmd is defined as empty excepts arc/mips platform. This patch has no negative effect on other platforms except arc/mips system. Link: http://lkml.kernel.org/r/1592990792-1923-2-git-send-email-maobibo@loongson.cn Signed-off-by: Bibo Mao Cc: Anshuman Khandual Cc: Daniel Silsby Cc: "Kirill A. Shutemov" Cc: Mike Kravetz Cc: Mike Rapoport Cc: Paul Burton Cc: Ralf Baechle Cc: Thomas Bogendoerfer Signed-off-by: Andrew Morton --- mm/huge_memory.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/huge_memory.c~mm-huge_memoryc-update-tlb-entry-if-pmd-is-changed +++ a/mm/huge_memory.c @@ -636,6 +636,7 @@ static vm_fault_t __do_huge_pmd_anonymou lru_cache_add_inactive_or_unevictable(page, vma); pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, pgtable); set_pmd_at(vma->vm_mm, haddr, vmf->pmd, entry); + update_mmu_cache_pmd(vma, vmf->address, vmf->pmd); add_mm_counter(vma->vm_mm, MM_ANONPAGES, HPAGE_PMD_NR); mm_inc_nr_ptes(vma->vm_mm); spin_unlock(vmf->ptl); @@ -749,6 +750,7 @@ vm_fault_t do_huge_pmd_anonymous_page(st } else { set_huge_zero_page(pgtable, vma->vm_mm, vma, haddr, vmf->pmd, zero_page); + update_mmu_cache_pmd(vma, vmf->address, vmf->pmd); spin_unlock(vmf->ptl); } } else { _