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 38ED8C43334 for ; Mon, 6 Jun 2022 21:45:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234974AbiFFVou (ORCPT ); Mon, 6 Jun 2022 17:44:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234802AbiFFVoa (ORCPT ); Mon, 6 Jun 2022 17:44:30 -0400 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 420E98DDCD for ; Mon, 6 Jun 2022 14:44:24 -0700 (PDT) Received: by mail-pj1-x1030.google.com with SMTP id w13-20020a17090a780d00b001e8961b355dso1823630pjk.5 for ; Mon, 06 Jun 2022 14:44:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=TeR+saO9bGVSVDYLkT6whuJkztc98Y7uqJRw9Zwr6CA=; b=HKhirssn3eLksqebeSYrk+jXcfBxshfBpkTxjBPO9398Kqa18Cm3e71kgcZu26dIvY o6XXpciQWvJwXzV5TU9EluS5IVMmvxncZ5Mi/Vz+lQNfHrPN3rzLvi/l00C5t+Za+YHj YSPmh2kgWJ07k6J+1bq9EH3HdkCP54M7O6Vm/tRIEY34h4UfvDTYtD/vhvyQzncqUZA5 lIVQRmQhGGRj5O6xWtvnzee96vGcj+iwnnmw/OVFSsrJmnCfV4t/Ft+pb31IkLeX0FcM 9gByGWOdP6wH6PFe0kKeAl3/kjT4wP6BDTfJq8QgNMLS5uVGvXEfYFP0xTXUn4EZHlGi 7T5Q== 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=TeR+saO9bGVSVDYLkT6whuJkztc98Y7uqJRw9Zwr6CA=; b=NaZaUoVymyJ0OOmWeRKV2GIKUOLYlsR3I4CDlXSXbfwbCJO2nemnaz/iyWQwPTkkK7 zYcbznfH//EFci4UxWgI84TrT8LADmw+rfU40CIlZ0QfqAKbwcyAp90MVrXkVzCCQ7WQ p1e6asTFwgK0I1ZDbx2Uywp1ed/bKiJZw/m1lHNGl+Mgn+QycreM1o9WhDeB11N0E1Er 0aBaHlRtqKS4VpvykJxb6asiFzb4/0NS1aeJnDNF5nq7SqTMnlR2q0O/EOXASjWmvwS+ i9ADGjqhLNIcN1J1Bpor5tJnEFZiW6yn9eGLMCSgeTxiuK1XJdJzn2DOp775MZD7ZMjx eNEA== X-Gm-Message-State: AOAM532bU3VJONsRwaRWrDPBfWF+W1eNY3wu34z7vzHYlyxF2c2fU2bx PtcEogX1lN1Xy8aeo3mYJ8M= X-Google-Smtp-Source: ABdhPJx+QgadWDwD5L0qXpqeZx6oasMAo4joDNR6AQwapxgpVmCIYIAdm45+392KvIhA5+qYQ6m75A== X-Received: by 2002:a17:90b:4a90:b0:1e8:626c:e1b2 with SMTP id lp16-20020a17090b4a9000b001e8626ce1b2mr13173095pjb.141.1654551863738; Mon, 06 Jun 2022 14:44:23 -0700 (PDT) Received: from localhost.biz ([8.25.197.27]) by smtp.gmail.com with ESMTPSA id a4-20020a170903100400b0016397da033csm10881675plb.62.2022.06.06.14.44.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Jun 2022 14:44:23 -0700 (PDT) From: Yang Shi To: vbabka@suse.cz, kirill.shutemov@linux.intel.com, willy@infradead.org, akpm@linux-foundation.org Cc: shy828301@gmail.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [v3 PATCH 3/7] mm: khugepaged: remove the redundant anon vma check Date: Mon, 6 Jun 2022 14:44:10 -0700 Message-Id: <20220606214414.736109-4-shy828301@gmail.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20220606214414.736109-1-shy828301@gmail.com> References: <20220606214414.736109-1-shy828301@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The hugepage_vma_check() already checked it, so remove the redundant check. Signed-off-by: Yang Shi --- mm/khugepaged.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index d0f8020164fc..7a5d1c1a1833 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -966,9 +966,6 @@ static int hugepage_vma_revalidate(struct mm_struct *mm, unsigned long address, return SCAN_ADDRESS_RANGE; if (!hugepage_vma_check(vma, vma->vm_flags)) return SCAN_VMA_CHECK; - /* Anon VMA expected */ - if (!vma->anon_vma || !vma_is_anonymous(vma)) - return SCAN_VMA_CHECK; return 0; } -- 2.26.3