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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 B6DA4C433E1 for ; Fri, 26 Jun 2020 22:31:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8752D214F1 for ; Fri, 26 Jun 2020 22:31:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DGRwBAFM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726107AbgFZWbr (ORCPT ); Fri, 26 Jun 2020 18:31:47 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:47575 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726079AbgFZWbq (ORCPT ); Fri, 26 Jun 2020 18:31:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593210704; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nYKuiXa6JqSlFakb02F9N/z/khfKW7nv0ZKU3o10xCg=; b=DGRwBAFMqF1mh4XxnaJxgSdEs59EzNZwXLGDCK7lTocadtKFahvOt5yGSQOvuvRsEgS9NU VOcmrBeG7bi5Vm7U7EbyyAHnaWJZbj5yP2OwyUN6rlDkYZiJlaVXXcPa1PSgjexdeBqLs7 R0nObCU0frbH22xcdKaA1aQku9+sfvE= Received: from mail-qv1-f72.google.com (mail-qv1-f72.google.com [209.85.219.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-193-W7mn9QtgPCq66l941G0r5A-1; Fri, 26 Jun 2020 18:31:42 -0400 X-MC-Unique: W7mn9QtgPCq66l941G0r5A-1 Received: by mail-qv1-f72.google.com with SMTP id g13so7385905qvp.5 for ; Fri, 26 Jun 2020 15:31:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nYKuiXa6JqSlFakb02F9N/z/khfKW7nv0ZKU3o10xCg=; b=sw6JajNCudec+UHs4FZSEc2enrOzPJ9IsMe9ZhTigH/wDvzzMVdYfnpV39cV0HS34q nxn1EJBglb9ssF+8zzO5O7MQ9Bb+3QtNrynSqdQAwn9CvijUVi3ARBSV3404qGHYviOw JhIekHE5vCfe8iq46egiJn9cG+jPkfCp3JM4rDMtLVx4JchR2yvhwbYN2Phv5BZBWchj OmAAOaav/Tll1iDxa8wBjTLfRQ2C7oYedH4F3NP06nA6NV6tipDKcsjbXvlv+nI8IYvd QBxe/oCa0/LnkZoccrJG4FinqAJ8Wp9W0Au8mOnMVXhSTkuzm7Du0BRVBCvNxnRE9RLj 9Jbw== X-Gm-Message-State: AOAM532t3kpuqaT9iNllcxAuqoJPbTeiNpzRbI7FgFieX79F003h8cmf cIshzBwrf0g/LWze+9U06mWVyeIMZTKEgidI0hGvpx11pQQaGCKi8SKZPJAEu/2E8CjgSgjJdem 0Liyu4orESW3jV5VI3JB73w== X-Received: by 2002:ac8:27bd:: with SMTP id w58mr5311364qtw.348.1593210701799; Fri, 26 Jun 2020 15:31:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxSMdcnN8S0Vm53+A1zYZUxGb86xhlZEgD0Ug2gSVVAidxyTpcuF0guaWkh6epy+fd5/SNVlw== X-Received: by 2002:ac8:27bd:: with SMTP id w58mr5311342qtw.348.1593210701587; Fri, 26 Jun 2020 15:31:41 -0700 (PDT) Received: from xz-x1.redhat.com ([2607:9880:19c0:32::2]) by smtp.gmail.com with ESMTPSA id f203sm9903311qke.135.2020.06.26.15.31.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jun 2020 15:31:40 -0700 (PDT) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Andrew Morton , Linus Torvalds , Gerald Schaefer , Andrea Arcangeli , Will Deacon , peterx@redhat.com, Michael Ellerman , Guo Ren , linux-csky@vger.kernel.org Subject: [PATCH 06/26] mm/csky: Use general page fault accounting Date: Fri, 26 Jun 2020 18:31:10 -0400 Message-Id: <20200626223130.199227-7-peterx@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200626223130.199227-1-peterx@redhat.com> References: <20200626223130.199227-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-csky-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org Use the general page fault accounting by passing regs into handle_mm_fault(). It naturally solve the issue of multiple page fault accounting when page fault retry happened. CC: Guo Ren CC: linux-csky@vger.kernel.org Signed-off-by: Peter Xu --- arch/csky/mm/fault.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c index b14f97d3cb15..a3e0aa3ebb79 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -151,7 +151,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, * the fault. */ fault = handle_mm_fault(vma, address, write ? FAULT_FLAG_WRITE : 0, - NULL); + regs); if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -161,16 +161,6 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, goto bad_area; BUG(); } - if (fault & VM_FAULT_MAJOR) { - tsk->maj_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, - address); - } else { - tsk->min_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, - address); - } - up_read(&mm->mmap_sem); return; -- 2.26.2