From owner-freebsd-arch@freebsd.org Mon Nov 9 16:59:23 2020 Return-Path: Delivered-To: freebsd-arch@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5D1FE4680BF for ; Mon, 9 Nov 2020 16:59:23 +0000 (UTC) (envelope-from khng300@gmail.com) Received: from mail-ot1-x329.google.com (mail-ot1-x329.google.com [IPv6:2607:f8b0:4864:20::329]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CVHK62lMCz3JlG for ; Mon, 9 Nov 2020 16:59:22 +0000 (UTC) (envelope-from khng300@gmail.com) Received: by mail-ot1-x329.google.com with SMTP id j14so9620976ots.1 for ; Mon, 09 Nov 2020 08:59:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=D66GAwhM2bO42b/nfdG2cQroR73+aqoHPW6MjlQLMyU=; b=cpB5Da48xGO3k2BgbFG5Iql913hoZvAMoIB38OKd9+iPfgwutSsyXQccdAwuRJTLhc QU6s/lik3Bdk++0r5zHL1nRDBt88r9/vYqBwGsGALdANUDLBhrrIN8GyimVijA7ooFi0 Hp3JvmpM5z5jnWzAkvQFRRZMkqRnj/X0Qx0WbtXI0wiCFwarSDgW0R5xe3+Qc/a+jky4 YsbtwtfjFyb8YRaOBibJObxvKMNMr1H5CgJou55IZkT1WqF4/uVTpzbJhPSIXAE2ti9C NaW4iND8i2gVD7uaf62GS1XzX31/QcO5fMS0cE2MBJGPI26jLkxlGU678A9kccQF4uJn Gp7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=D66GAwhM2bO42b/nfdG2cQroR73+aqoHPW6MjlQLMyU=; b=Aqiq1C60EJXHvAUOVVv8VRTyZGeFYfLVcjXuoCfJbydtD2c69uOIZ0XsmlDDYVprGP QjGanJzTTOOVNIS4s4ivxe7eSjIjtWHlHCIHsKSMwxBJRdM+HdIbcuJDoNVMSAfIbOuA dyvwgUPaOjfsgAUblNQhpEEKBO09KpPsodXywW+9vJpwz4ZltXkfzE+lOXYenQZj7i+c 3bkTMs9SU0dDgHXS6Dz3t9Mqsxa8M9KFOQBXvEGkaXbtts9dkWQJEH2H2xbBmZYrgTec 4tKH8TJioZFLLsmpaFI49Z+3JFMnF3Tf9b8W3h6Q0yt9SBZrvVZE0894T52L+GtgHnyh YspA== X-Gm-Message-State: AOAM530S/RLZVJj5U1iq/hrCr0dzGGpZBLmf20UEnDjLE+1EhM3WzPhj PkVsJ03xEe0kJS9FxFCMmxUQvjVetMbBLpX+sf7PEZM74XMloQ== X-Google-Smtp-Source: ABdhPJweD5dXILNwpjeS13W5jTJTjQs13MfTo65EthCYelNqouuh5zsGZGEFQCtosJr7NkZkmXCWvf1XLYUt8WMMLTA= X-Received: by 2002:a9d:2f09:: with SMTP id h9mr11217756otb.186.1604941160648; Mon, 09 Nov 2020 08:59:20 -0800 (PST) MIME-Version: 1.0 From: Ka Ho Ng Date: Tue, 10 Nov 2020 00:59:09 +0800 Message-ID: Subject: A draft of file-sparsifying/hole-punching/deallocation for fzero API To: freebsd-arch@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 4CVHK62lMCz3JlG X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=cpB5Da48; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of khng300@gmail.com designates 2607:f8b0:4864:20::329 as permitted sender) smtp.mailfrom=khng300@gmail.com X-Spamd-Result: default: False [-2.20 / 15.00]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[2607:f8b0:4864:20::329:from]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-arch@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[2607:f8b0:4864:20::329:from:127.0.2.255]; NEURAL_SPAM_SHORT(0.80)[0.795]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::329:from]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-arch] X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Nov 2020 16:59:23 -0000 I am working out APIs which allow turning a range of a file into sparse. The link to the branch is here: https://github.com/khng300/freebsd/tree/khng/current/fdealloc . The draft describing the current shape of the API is here: https://hackmd.io/xQolDBDMQKq5_0n_Ej1WfQ?view Thanks, Ka Ho