From patchwork Mon Jul 31 07:48:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 13333955 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 96A4EC001DE for ; Mon, 31 Jul 2023 07:39:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=p5K6w0nADC2XSZGiIrbEKeOhYYGhByMfmXfjcrIjXt4=; b=WtM0xG1s1cLAfB ZugmDaWDJQGm3C8SW0oUG7OgoQylTEJeA56f92zIpb2XG9a3NgVh5mSfGlBv09NtWg718KIuAs6uL 5+PRvCtxEPlj1AS8BPt63/Vzeo9FvGJo43z679Bz+RiLSUSaadUNvVT8btjTMizGofq4FmeYNdLtS IpfpxqIG6WMd9bSwx1hAgKkHkZuAexkTXRKFvSKJAdKsvPfReNKlkSOX/CVJBZt+guDskFYbxwd+E q7AEqbzHw465dEfCdaCtKSPd5kmVfQSwP3JROm1/tw0E2/T9TXbqTnPkkGncWTXyleDdy5A4emlO3 J+/ELmcsSGilSLaG9IkA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qQNV5-00ELRI-0y; Mon, 31 Jul 2023 07:39:31 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qQNV1-00ELMd-28 for linux-arm-kernel@lists.infradead.org; Mon, 31 Jul 2023 07:39:29 +0000 Received: from dggpemm100001.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RDqmD2YBwztQSD; Mon, 31 Jul 2023 15:35:56 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm100001.china.huawei.com (7.185.36.93) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 31 Jul 2023 15:39:15 +0800 From: Kefeng Wang To: Andrew Morton , Catalin Marinas , Will Deacon , Mike Kravetz , Muchun Song , Mina Almasry , , , , , CC: , , Kefeng Wang Subject: [PATCH 2/4] mm: mremap: use flush_pmd_tlb_range() in move_normal_pmd() Date: Mon, 31 Jul 2023 15:48:27 +0800 Message-ID: <20230731074829.79309-3-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230731074829.79309-1-wangkefeng.wang@huawei.com> References: <20230731074829.79309-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm100001.china.huawei.com (7.185.36.93) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230731_003927_916539_0602B236 X-CRM114-Status: GOOD ( 11.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Archs may need to do special things when flushing thp tlb, so use the more applicable flush_pud_tlb_range() instead of flush_tlb_range(). Fixes: 2c91bd4a4e2e ("mm: speed up mremap by 20x on large regions") Signed-off-by: Kefeng Wang --- mm/mremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mremap.c b/mm/mremap.c index 11e06e4ab33b..1883205fa22b 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -284,7 +284,7 @@ static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr, VM_BUG_ON(!pmd_none(*new_pmd)); pmd_populate(mm, new_pmd, pmd_pgtable(pmd)); - flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE); + flush_pmd_tlb_range(vma, old_addr, old_addr + PMD_SIZE); if (new_ptl != old_ptl) spin_unlock(new_ptl); spin_unlock(old_ptl);