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=-8.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 9F7C2C433DB for ; Thu, 21 Jan 2021 20:44:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 360922389F for ; Thu, 21 Jan 2021 20:44:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 360922389F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=cmpxchg.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BEF5C6B0007; Thu, 21 Jan 2021 15:44:23 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B9FB16B0008; Thu, 21 Jan 2021 15:44:23 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A8DC26B000A; Thu, 21 Jan 2021 15:44:23 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0035.hostedemail.com [216.40.44.35]) by kanga.kvack.org (Postfix) with ESMTP id 8EF1E6B0007 for ; Thu, 21 Jan 2021 15:44:23 -0500 (EST) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 5E16C180AD80F for ; Thu, 21 Jan 2021 20:44:23 +0000 (UTC) X-FDA: 77730960006.04.rod99_1e0940027566 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin04.hostedemail.com (Postfix) with ESMTP id 3EF6F8017234 for ; Thu, 21 Jan 2021 20:44:23 +0000 (UTC) X-HE-Tag: rod99_1e0940027566 X-Filterd-Recvd-Size: 3395 Received: from mail-qt1-f177.google.com (mail-qt1-f177.google.com [209.85.160.177]) by imf37.hostedemail.com (Postfix) with ESMTP for ; Thu, 21 Jan 2021 20:44:22 +0000 (UTC) Received: by mail-qt1-f177.google.com with SMTP id d15so2563533qtw.12 for ; Thu, 21 Jan 2021 12:44:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=mJ5PGzGmiLLUrzTi1u+PWslzt/cE4FGIGC3QTg4GyNU=; b=XEexdU25vzlHX3yTNVNzHMDCFhMAUHi0vHqq4srg310OpkDzUMqIMQosp76W9eriKq K9WdGHf0i2fo+5ydgoMD1zCkBRDxshw/C96HIx0vh+MJqsiXANwLVeIuvxdCC2kGGRbh LCUle2LeLtQzg/wP3aqbFAjL+rGOZ5XSjZPMhEJg7THs81mGHvzOAnUTwaDnOoGvKUfD S8SxZwBjwPxb6qcZN5TVWQwm3zeRVRyq/Z6mYQSWvIwUdgGaPrLhNKZAE4+RXiX27EZV AaPhYYUB23m+NhNaDvZc3ioHaW7WlGjKCjapKaKC8H5kAGk5+RS3+oW1ZhG+1+Irihyi M+0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=mJ5PGzGmiLLUrzTi1u+PWslzt/cE4FGIGC3QTg4GyNU=; b=L2H++YzNJLaG3uSqP/deLgpj3EfYYpscy9nz7qXLkn/hPJmQeMz0EayG5o8t7Dm5CE T6mxSZ//sS9lsLecTGH4PtmObW5YyfHrl+4nPf6iexrmnWZwh4q+v/eh0IEyRFsZkPGI 4btzk86qUu2hgtwDXQ1ES4FW0iBf3P7LYWte6CmeuKQDrkcCEZJWczrK/sI9vd+VaFSV MvXHrK8Y93sVdWEhdTeSLjuaja9HEsA8y4Q684RMusOLTSQhyDBvAb8W42nivz3eYuty AQzjcrMN18nwNrySPK462WEqSmMGe14amW0w2Z2UIx21/gbxETmPnnp9Ri5IBDS3e6Vj V41A== X-Gm-Message-State: AOAM5300Yv1l5xQcN3jO1tTixGH3BcvTaAvid6LmTo+Yp3z6y43TyqNF 7HBS4pE+7cZBlpWbBbVIeWjN+Q== X-Google-Smtp-Source: ABdhPJzJp8jl31mPFjPI2gRRVkFEDO5aKL9LMCYtxQ+I4Cn4WNfvBbp1XuW8P/En/rtFBsqUQr0fig== X-Received: by 2002:ac8:7b42:: with SMTP id m2mr1435255qtu.304.1611261861619; Thu, 21 Jan 2021 12:44:21 -0800 (PST) Received: from localhost ([2620:10d:c091:480::1:b808]) by smtp.gmail.com with ESMTPSA id i27sm4610509qkk.15.2021.01.21.12.44.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Jan 2021 12:44:20 -0800 (PST) Date: Thu, 21 Jan 2021 15:44:19 -0500 From: Johannes Weiner To: "Matthew Wilcox (Oracle)" Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-nvdimm@lists.01.org, Vishal Verma Subject: Re: [PATCH v2 2/4] mm: Stop accounting shadow entries Message-ID: References: <20201026151849.24232-1-willy@infradead.org> <20201026151849.24232-3-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201026151849.24232-3-willy@infradead.org> 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: On Mon, Oct 26, 2020 at 03:18:47PM +0000, Matthew Wilcox (Oracle) wrote: > We no longer need to keep track of how many shadow entries are > present in a mapping. This saves a few writes to the inode and > memory barriers. > > Signed-off-by: Matthew Wilcox (Oracle) > Tested-by: Vishal Verma Acked-by: Johannes Weiner