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=-12.9 required=3.0 tests=BAYES_00,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 35FF1C388F7 for ; Wed, 28 Oct 2020 21:41:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D182C246AB for ; Wed, 28 Oct 2020 21:41:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="SfI8YlA3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725821AbgJ1Vlm (ORCPT ); Wed, 28 Oct 2020 17:41:42 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:26065 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725931AbgJ1Vll (ORCPT ); Wed, 28 Oct 2020 17:41:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603921300; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc; bh=LhENSx2EttwM9DyL2rsq8rtceZSh7KlVqPrWwMltGEg=; b=SfI8YlA30Fe88yNl3BtrOrmb1fYdQg+nDoYnk9LxN0DVY286yhn2A6pzPMJP/XJ/q0kzK/ /KmQFy1f2WakYaejSnqiPRo5DE/73Aey7oO/Y31LR0Kr0FwA8B9CV+5b8qT6ptaU8shUFW sq7XZraPI0OcVFjKHruulRHl+72beNM= Received: from mail-pj1-f71.google.com (mail-pj1-f71.google.com [209.85.216.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-214-EVNOubmpMJGBiKmE0DXebg-1; Wed, 28 Oct 2020 07:40:42 -0400 X-MC-Unique: EVNOubmpMJGBiKmE0DXebg-1 Received: by mail-pj1-f71.google.com with SMTP id t15so2563254pja.7 for ; Wed, 28 Oct 2020 04:40:42 -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; bh=LhENSx2EttwM9DyL2rsq8rtceZSh7KlVqPrWwMltGEg=; b=qBWlDW4DDxIbtwV4uf56xW1ICei+ocU4jB5Z/mJJSA0qLA7wJqPfXb8b+pvFMcWFba +FqdqbCJFM6ZVnGIb8phaZ0dHB8xwcU5UThZALLnYzzMwRMlLsQzZLNIIyjx7bHLfbP+ kX2Dfklkw0X5zF3CoGEMArcmSWKFxxRBor3c1IONXgUHGYEpBU9RdqKPK/ncibQVyZVG svFMgz0fDaruldrexF8OHQTHSBcTrOnfmx6yKrlSKI7yqmVxZMtF1Fjs69+nGbLvrL4N MJkqwrLYaiOVEXBdDU/dgrsnGsBo/0pqVJigV51cLdRUmktBYhyjbcVvXwrO8ruLN5DV Vktg== X-Gm-Message-State: AOAM530RazaUfV+82w1aP16X5E/9PjJ5LOUIdl9ctn2k8WZI3DNWYYLN kVcE7x57szRf6xb9glUlMVr/uzBtxzB7Swws5YvrP880cA9Avo5qHsOYM288M0h6ffscKMOyCik 2qoq2VxJ14cIJEAtCjqvA X-Received: by 2002:a17:90a:2e87:: with SMTP id r7mr6346174pjd.193.1603885241443; Wed, 28 Oct 2020 04:40:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwvDUWxRZgB7zB8dKqo5wNw1VmqtBlYQQ+224O57KKZz63hV7OENzdhTlpm+zOWO5+/qk5W9Q== X-Received: by 2002:a17:90a:2e87:: with SMTP id r7mr6346160pjd.193.1603885241234; Wed, 28 Oct 2020 04:40:41 -0700 (PDT) Received: from xiangao.com ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id z26sm6405656pfq.131.2020.10.28.04.40.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Oct 2020 04:40:40 -0700 (PDT) From: Gao Xiang To: linux-xfs@vger.kernel.org Cc: Gao Xiang Subject: [WIP] [RFC PATCH] xfs_growfs: allow shrinking unused space in the last AG Date: Wed, 28 Oct 2020 19:40:10 +0800 Message-Id: <20201028114010.545331-1-hsiangkao@redhat.com> X-Mailer: git-send-email 2.18.1 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org This allows shrinking operation can pass into kernel. Signed-off-by: Gao Xiang --- preliminary version. growfs/xfs_growfs.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/growfs/xfs_growfs.c b/growfs/xfs_growfs.c index a68b515d..d45ba703 100644 --- a/growfs/xfs_growfs.c +++ b/growfs/xfs_growfs.c @@ -246,12 +246,11 @@ main(int argc, char **argv) error = 1; } - if (!error && dsize < geo.datablocks) { - fprintf(stderr, _("data size %lld too small," - " old size is %lld\n"), + if (!error && dsize < geo.datablocks) + fprintf(stderr, +_("[EXPERIMENTAL] try to shrink unused space %lld, old size is %lld\n"), (long long)dsize, (long long)geo.datablocks); - error = 1; - } else if (!error && + if (!error && dsize == geo.datablocks && maxpct == geo.imaxpct) { if (dflag) fprintf(stderr, _( -- 2.18.1