From patchwork Sat Jan 21 08:08:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Chinner X-Patchwork-Id: 9530041 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B1AD4600CA for ; Sat, 21 Jan 2017 08:08:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A01982842E for ; Sat, 21 Jan 2017 08:08:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 94FE328620; Sat, 21 Jan 2017 08:08:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 24F152842E for ; Sat, 21 Jan 2017 08:08:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751210AbdAUII2 (ORCPT ); Sat, 21 Jan 2017 03:08:28 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:25918 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751169AbdAUII2 (ORCPT ); Sat, 21 Jan 2017 03:08:28 -0500 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v0L88PjO024063 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 21 Jan 2017 08:08:26 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id v0L88PiZ021241 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 21 Jan 2017 08:08:25 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id v0L88PrB008390; Sat, 21 Jan 2017 08:08:25 GMT Received: from localhost (/24.21.211.40) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sat, 21 Jan 2017 00:08:25 -0800 Subject: [PATCH 03/17] spaceman: add FITRIM support From: Dave Chinner To: sandeen@redhat.com, darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Date: Sat, 21 Jan 2017 00:08:24 -0800 Message-ID: <148498610404.16675.3623235717672067547.stgit@birch.djwong.org> In-Reply-To: <148498608472.16675.14848042961636871812.stgit@birch.djwong.org> References: <148498608472.16675.14848042961636871812.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for discarding free space extents via the FITRIM command. Make it easy to discard a single range, an entire AG or all the freespace in the filesystem. Signed-off-by: Dave Chinner --- spaceman/Makefile | 2 - spaceman/init.c | 1 spaceman/space.h | 1 spaceman/trim.c | 139 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 142 insertions(+), 1 deletion(-) create mode 100644 spaceman/trim.c -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/spaceman/Makefile b/spaceman/Makefile index ff8d23e..9fb9142 100644 --- a/spaceman/Makefile +++ b/spaceman/Makefile @@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs LTCOMMAND = xfs_spaceman HFILES = init.h space.h CFILES = init.c \ - file.c + file.c trim.c LLDLIBS = $(LIBXCMD) LTDEPENDENCIES = $(LIBXCMD) diff --git a/spaceman/init.c b/spaceman/init.c index ebe3b5a..8eb4cc7 100644 --- a/spaceman/init.c +++ b/spaceman/init.c @@ -40,6 +40,7 @@ init_commands(void) file_init(); help_init(); quit_init(); + trim_init(); } static int diff --git a/spaceman/space.h b/spaceman/space.h index 6e1bc52..7b4f034 100644 --- a/spaceman/space.h +++ b/spaceman/space.h @@ -34,3 +34,4 @@ extern int addfile(char *, int , xfs_fsop_geom_t *, int); extern void file_init(void); extern void help_init(void); extern void quit_init(void); +extern void trim_init(void); diff --git a/spaceman/trim.c b/spaceman/trim.c new file mode 100644 index 0000000..9bf6565 --- /dev/null +++ b/spaceman/trim.c @@ -0,0 +1,139 @@ +/* + * Copyright (c) 2012 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libxfs.h" +#include +#include "command.h" +#include "init.h" +#include "space.h" +#include "input.h" + +#ifndef FITRIM +#define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */ + +struct fstrim_range { + __u64 start; + __u64 len; + __u64 minlen; +}; +#endif + +static cmdinfo_t trim_cmd; + +/* + * Report on trimace usage in xfs filesystem. + */ +static int +trim_f( + int argc, + char **argv) +{ + struct fstrim_range trim = {0}; + xfs_agnumber_t agno = 0; + off64_t offset = 0; + ssize_t length = 0; + ssize_t minlen = 0; + int aflag = 0; + int fflag = 0; + int ret; + int c; + + while ((c = getopt(argc, argv, "a:fm:")) != EOF) { + switch (c) { + case 'a': + if (fflag) + return command_usage(&trim_cmd); + aflag = 1; + agno = atoi(optarg); + break; + case 'f': + if (aflag) + return command_usage(&trim_cmd); + fflag = 1; + break; + case 'm': + minlen = cvtnum(file->geom.blocksize, + file->geom.sectsize, argv[optind]); + break; + default: + return command_usage(&trim_cmd); + } + } + + if (optind != argc - 2 && !(aflag || fflag)) + return command_usage(&trim_cmd); + if (optind != argc) { + offset = cvtnum(file->geom.blocksize, file->geom.sectsize, + argv[optind]); + length = cvtnum(file->geom.blocksize, file->geom.sectsize, + argv[optind + 1]); + } else if (agno) { + offset = agno * file->geom.agblocks * file->geom.blocksize; + length = file->geom.agblocks * file->geom.blocksize; + } else { + offset = 0; + length = file->geom.datablocks * file->geom.blocksize; + } + + trim.start = offset; + trim.len = length; + trim.minlen = minlen; + + ret = ioctl(file->fd, FITRIM, (unsigned long)&trim); + if (ret < 0) { + fprintf(stderr, "%s: ioctl(FITRIM) [\"%s\"]: " + "%s\n", progname, file->name, strerror(errno)); + exitcode = 1; + return 0; + } + return 0; +} + +static void +trim_help(void) +{ + printf(_( +"\n" +"Discard filesystem free space\n" +"\n" +"Options: [-m minlen] [-f]|[-a agno]|[offset length]\n" +"\n" +" -m minlen -- skip freespace extents smaller than minlen\n" +" -f -- trim all the freespace in the entire filesystem\n" +" -a agno -- trim all the freespace in the given AG agno\n" +" offset length -- trim the freespace in the range {offset, length}\n" +"\n")); + +} + +void +trim_init(void) +{ + trim_cmd.name = "trim"; + trim_cmd.altname = "tr"; + trim_cmd.cfunc = trim_f; + trim_cmd.argmin = 1; + trim_cmd.argmax = 4; + trim_cmd.args = "[-m minlen] [-f]|[-a agno]|[offset length]\n"; + trim_cmd.flags = CMD_FLAG_ONESHOT; + trim_cmd.oneline = _("Discard filesystem free space"); + trim_cmd.help = trim_help; + + add_command(&trim_cmd); +} +