From patchwork Wed Jun 22 17:06:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12891176 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 592E1C433EF for ; Wed, 22 Jun 2022 17:07:03 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9EC996B00D0; Wed, 22 Jun 2022 13:06:53 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8CDFB6B00D1; Wed, 22 Jun 2022 13:06:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4A0468E00D2; Wed, 22 Jun 2022 13:06:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id E15536B00D0 for ; Wed, 22 Jun 2022 13:06:52 -0400 (EDT) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id C2D9621384 for ; Wed, 22 Jun 2022 17:06:52 +0000 (UTC) X-FDA: 79606501464.05.208C499 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf23.hostedemail.com (Postfix) with ESMTP id 32BE61400BF for ; Wed, 22 Jun 2022 17:06:50 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4LSqT33KVJzSh9t; Thu, 23 Jun 2022 01:03:03 +0800 (CST) Received: from huawei.com (10.175.124.27) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 23 Jun 2022 01:06:27 +0800 From: Miaohe Lin To: CC: , , , , , Subject: [PATCH 01/16] mm/huge_memory: use flush_pmd_tlb_range in move_huge_pmd Date: Thu, 23 Jun 2022 01:06:12 +0800 Message-ID: <20220622170627.19786-2-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220622170627.19786-1-linmiaohe@huawei.com> References: <20220622170627.19786-1-linmiaohe@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1655917610; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oF8fb7gM6FeM9ws84vEw0nCHFHhgGDmcLSk5G+hHuBk=; b=m0aEVRWNpDEdwMipendD7+sUUS/Y59CwQFYgNh0f4bfIsywAjUXqL0+hyL6n1nyYY8H+qK tiOCFIhRmw/9ZxrtJ130mPYwecfCe0lOCJSRVoV4mDMtW5BaE/OgR49RqpGSHh+XgHgiZk LiSNnWslzxHuy6N60KvxiBP/sKyUQ6g= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1655917610; a=rsa-sha256; cv=none; b=Q/2COWRkQqNm/taTf8bcrszkJ272muclYqZIWE0EdnFqni/5bmuiYNpyHU+AB/p7zbRbLd GzzayBJM53RFERpPEBzM09hAQ1xqFQ/JOOKinWNvQ7AQeTjw8j7YfjNUx2QP1zM+16aIXo HpJ8S38M1CuWkc6S9e7OrdIP3k7/Is0= ARC-Authentication-Results: i=1; imf23.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf23.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Stat-Signature: 5cnu49m535th4p8zq9h9dbkou8rs64m4 X-Rspamd-Queue-Id: 32BE61400BF Authentication-Results: imf23.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf23.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1655917610-192644 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: ARCHes with special requirements for evicting THP backing TLB entries can implement flush_pmd_tlb_range. Otherwise also, it can help optimize TLB flush in THP regime. Using flush_pmd_tlb_range to take advantage of this in move_huge_pmd. Signed-off-by: Miaohe Lin Reviewed-by: Muchun Song Reviewed-by: Zach O'Keefe --- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index af0751a79c19..fd6da053a13e 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1746,7 +1746,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr, pmd = move_soft_dirty_pmd(pmd); set_pmd_at(mm, new_addr, new_pmd, pmd); if (force_flush) - 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);