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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41B5DC43334 for ; Tue, 28 Jun 2022 09:25:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344163AbiF1JZP (ORCPT ); Tue, 28 Jun 2022 05:25:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344200AbiF1JY3 (ORCPT ); Tue, 28 Jun 2022 05:24:29 -0400 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5DE622B12 for ; Tue, 28 Jun 2022 02:24:22 -0700 (PDT) Received: by mail-pf1-x42a.google.com with SMTP id i64so11458557pfc.8 for ; Tue, 28 Jun 2022 02:24:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=HfUjscIbkwVw1h7ZbqwVjjayoThyClFWWQF+WJosK0o=; b=EGLNwsQDxvaVFN8CeCrbJ+70RIMc1tVatGf97UIdEN2EjTlJem9LBckUcEMvfqNlNn QGlqj+u8qVtZY5bvtBdftuNbfM+nkNAiZ+z63aQLD1IPYmC7kZjnEx6Y96sBnJQTqgfE aDqtY2LDm5s0vnLK8DhThwZa+wTWmEeXEARzvdSaqFMJuZOTHDxOpuoomdW+9+Y05jFP pDgrstcy/ouAFxG6blugqbvAgAlXSMCogjLDL6nCoX+je4tqT0xKRdBeC3SiiE/52zZO sJRGwT+879wpDjsISVao7aJixX0Tq3Aqa7e5AQY/zx/IxtCOaa9vVafDm45setubdPOx 0MbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=HfUjscIbkwVw1h7ZbqwVjjayoThyClFWWQF+WJosK0o=; b=RutkkYDo6b35bKx53AcGgHVs5W69fQc/CQMBihZlEhk++JyeuA2hlGgf86Cha9zz0G w/0Ln8W65yyndg5CU58G+9uWyxqiYWZUpw7yeHZm1W6i2qYmhikjRfjs12/qbjhA+qvz Wy5LLBHscqLWks3Mi0c1UObjW9SmIhMq64An2b2f2dC3stRBkBD/F99zoWI1oW416kPv wWA/lOiLLAIQaNtYCom0OUVEr+KX1dW00u/QswJS1R6HPOyxbE3YZBjLuMxFN3VhX1yw UFnOqQ7mzx5+e5Wr1V9lWO4VV8PaCU3buZnGNSyzfcRNEuSkS1/9RPRk94MYYOYoaIo4 OxvA== X-Gm-Message-State: AJIora/K/olYR//8zfl65jc8YuIX18aXsHK8AazzHaw3WNW7iDZLUu/s TzFOY0Ee0o/dkBcbA7aSXfSZ8Q== X-Google-Smtp-Source: AGRyM1t2iPDeZtckQmi9/trLyiw6ixc7ucyEJw2PH0844IZPGmE/175fmI1VMaPArEBzl2GddFK1xg== X-Received: by 2002:a63:6a85:0:b0:3fa:722a:fbdc with SMTP id f127-20020a636a85000000b003fa722afbdcmr17032017pgc.174.1656408262357; Tue, 28 Jun 2022 02:24:22 -0700 (PDT) Received: from FVFYT0MHHV2J.bytedance.net ([139.177.225.245]) by smtp.gmail.com with ESMTPSA id mm9-20020a17090b358900b001ec729d4f08sm8780463pjb.54.2022.06.28.02.24.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Jun 2022 02:24:22 -0700 (PDT) From: Muchun Song To: mike.kravetz@oracle.com, david@redhat.com, akpm@linux-foundation.org, corbet@lwn.net Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, duanxiongchun@bytedance.com, Muchun Song Subject: [PATCH v2 8/8] mm: hugetlb_vmemmap: use PTRS_PER_PTE instead of PMD_SIZE / PAGE_SIZE Date: Tue, 28 Jun 2022 17:22:35 +0800 Message-Id: <20220628092235.91270-9-songmuchun@bytedance.com> X-Mailer: git-send-email 2.32.1 (Apple Git-133) In-Reply-To: <20220628092235.91270-1-songmuchun@bytedance.com> References: <20220628092235.91270-1-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org There is already a macro PTRS_PER_PTE to represent the number of page table entries, just use it. Signed-off-by: Muchun Song --- mm/hugetlb_vmemmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c index 6bbc445b1a66..65b527e1799c 100644 --- a/mm/hugetlb_vmemmap.c +++ b/mm/hugetlb_vmemmap.c @@ -48,7 +48,7 @@ static int __split_vmemmap_huge_pmd(pmd_t *pmd, unsigned long start) pmd_populate_kernel(&init_mm, &__pmd, pgtable); - for (i = 0; i < PMD_SIZE / PAGE_SIZE; i++, addr += PAGE_SIZE) { + for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { pte_t entry, *pte; pgprot_t pgprot = PAGE_KERNEL; -- 2.11.0