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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F89EC433EF for ; Wed, 2 Mar 2022 19:43:24 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8FF4F8D0002; Wed, 2 Mar 2022 14:43:23 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 8AEB28D0001; Wed, 2 Mar 2022 14:43:23 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 776B38D0002; Wed, 2 Mar 2022 14:43:23 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.28]) by kanga.kvack.org (Postfix) with ESMTP id 682748D0001 for ; Wed, 2 Mar 2022 14:43:23 -0500 (EST) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 2C9951ECD for ; Wed, 2 Mar 2022 19:43:23 +0000 (UTC) X-FDA: 79200470286.04.213B1D8 Received: from mail-lf1-f54.google.com (mail-lf1-f54.google.com [209.85.167.54]) by imf25.hostedemail.com (Postfix) with ESMTP id E15C4A000C for ; Wed, 2 Mar 2022 19:43:21 +0000 (UTC) Received: by mail-lf1-f54.google.com with SMTP id y24so4639516lfg.1 for ; Wed, 02 Mar 2022 11:43:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=D+G1a09M8P4CbXu26QE7iCVML2k0uFj+bbvrsTaH93U=; b=YT7SnwtqKBiq9TKpietz8YIDhmCrKcmPJiEWKh4KKa99uTizqkdkS+y5iIvjMR4I0I 0wBG0Nd16GJlOx6rYfz1vp/dBlAEZwc1fTAM+cBPALeRpkbfZBmGJGeT0C2Zr9pyIPP0 AW8InIHxZhNGVMf0XNGsdqr7I4uUholU0zOcI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=D+G1a09M8P4CbXu26QE7iCVML2k0uFj+bbvrsTaH93U=; b=Be4OFgr6W0bUSAt0N6wW+Ci7ygm4FshPgejVwvLEOoaxjOPotxxpQRLsqbVgGj/J/0 nxmnRprpyVEdwqGg2+bdb63ZTUMALbRY7MJ7RncA4Y6q//hhN2NfYOzAKD7Y7FZaFi8M Mah7LkljjFHWJtSoRfaHmbZHC8K+NSBkr39MoUbH8EyPLCl+BasiFN0KesP8xS4jKDkg paHv04+jmR5zKMoFVzooBbwbwFp7wco5EYz5QAN4xCDf+FTa4da/XvPY0UpoqJQoPoyu D5R2SnckGujewGmUQNJdNwrsxvjwDMe7ZEbkxocPKgping8Nk30KIoa+CW+2nVKGZouO Eq/Q== X-Gm-Message-State: AOAM533P9NmIxSTaJ7abMxzoQ3r3pj7qkgciB77Ds0pDGZisbgO4k1Ia 6D6LDQ1gVwjzVSnYzzcNXLamk/SGjik+SWMB/w8= X-Google-Smtp-Source: ABdhPJyOqdQNeKDCpdlGbBmJL3J12Qh/+VVyhl7vz+3tmTtp894kx3DkmceverqUI54s9iu+MkKShQ== X-Received: by 2002:a05:6512:287:b0:443:7f1d:e8ed with SMTP id j7-20020a056512028700b004437f1de8edmr19302893lfp.321.1646250199603; Wed, 02 Mar 2022 11:43:19 -0800 (PST) Received: from mail-lf1-f49.google.com (mail-lf1-f49.google.com. [209.85.167.49]) by smtp.gmail.com with ESMTPSA id j2-20020a2e3c02000000b0024610e94b2fsm2795431lja.130.2022.03.02.11.43.18 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 02 Mar 2022 11:43:18 -0800 (PST) Received: by mail-lf1-f49.google.com with SMTP id y24so4639413lfg.1 for ; Wed, 02 Mar 2022 11:43:18 -0800 (PST) X-Received: by 2002:ac2:4c8c:0:b0:445:6c26:3cff with SMTP id d12-20020ac24c8c000000b004456c263cffmr19624815lfl.435.1646250198484; Wed, 02 Mar 2022 11:43:18 -0800 (PST) MIME-Version: 1.0 References: <20220211213628.GA1919658@xavier-xps> <20220211213628.GA1919658@xavier-xps> In-Reply-To: <20220211213628.GA1919658@xavier-xps> From: Linus Torvalds Date: Wed, 2 Mar 2022 11:43:02 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v3] tmpfs: support for file creation time To: Xavier Roche Cc: Linux Kernel Mailing List , Hugh Dickins , Andrew Morton , Jean Delvare , Linux-MM Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: E15C4A000C X-Stat-Signature: 1cqy7xnqrgsqtg5dy4ajktdrz1jzubg3 X-Rspam-User: Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=YT7Snwtq; spf=pass (imf25.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.167.54 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none X-Rspamd-Server: rspam07 X-HE-Tag: 1646250201-900940 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, Feb 28, 2022 at 12:43 AM Xavier Roche wrote: > > Various filesystems (including ext4) now support file creation time. > This patch adds such support for tmpfs-based filesystems. What's the odd huge-page noise in this patch? Other oddities: Reply-To: b954973a-b8d1-cab8-63bd-6ea8063de3@google.com WHAT? And finally - if we really want to treat btime as a first-class entity and expect things like tmpfs to support it, then we should just bite the bullet and put it in 'struct inode' along with the other times. Linus