From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ipmail07.adl2.internode.on.net ([150.101.137.131]:11621 "EHLO ipmail07.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751877AbdH2XvG (ORCPT ); Tue, 29 Aug 2017 19:51:06 -0400 Received: from discord.disaster.area ([192.168.1.111]) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1dmqHW-0002ch-O5 for linux-xfs@vger.kernel.org; Wed, 30 Aug 2017 09:50:54 +1000 Received: from dave by discord.disaster.area with local (Exim 4.89) (envelope-from ) id 1dmqHW-0005Vy-MO for linux-xfs@vger.kernel.org; Wed, 30 Aug 2017 09:50:54 +1000 From: Dave Chinner Subject: [PATCH 13/42] mkfs: Introduce mkfs configuration structure Date: Wed, 30 Aug 2017 09:50:23 +1000 Message-Id: <20170829235052.21050-14-david@fromorbit.com> In-Reply-To: <20170829235052.21050-1-david@fromorbit.com> References: <20170829235052.21050-1-david@fromorbit.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-xfs@vger.kernel.org From: Dave Chinner Formatting the on disk XFS structures requires a certain set of validated and calculated parameters. By the time we start writing information to diskm this has all be done. Abstract this information out into a separate structure and initialise it with all the calculated parameters so we can factor the mkfs formatting code to use it. Signed-Off-By: Dave Chinner --- mkfs/xfs_mkfs.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c index 5a646b89cd0f..b92c3316358f 100644 --- a/mkfs/xfs_mkfs.c +++ b/mkfs/xfs_mkfs.c @@ -799,6 +799,58 @@ struct cli_params { struct libxfs_xinit *xi; }; +/* + * Calculated filesystem feature and geometry information. + * + * This structure contains the information we will use to create the on-disk + * filesystem from. The validation and calculation code uses it to store all the + * temporary and final config state for the filesystem. + * + * The information in this structure will contain a mix of validated CLI input + * variables, default feature state and calculated values that are needed to + * construct the superblock and other on disk features. These are all in one + * place so that we don't have to pass handfuls of seemingly arbitrary variables + * around to different functions to do teh work we need to do. + */ +struct mkfs_params { + int blocksize; + int blocklog; + int sectorsize; + int sectorlog; + int lsectorsize; + int lsectorlog; + int dirblocksize; + int dirblocklog; + int inodesize; + int inodelog; + int inopblock; + + uint64_t dblocks; + uint64_t logblocks; + uint64_t rtblocks; + uint64_t rtextblocks; + uint64_t rtextents; + uint64_t rtbmblocks; /* rt bitmap blocks */ + + int dsunit; /* in FSBs */ + int dswidth; /* in FSBs */ + int lsunit; /* in FSBs */ + + uint64_t agsize; + uint64_t agcount; + + int imaxpct; + + bool loginternal; + uint64_t logstart; + uint64_t logagno; + + uuid_t uuid; + char *label; + + struct sb_feat_args sb_feat; +}; + #define TERABYTES(count, blog) ((uint64_t)(count) << (40 - (blog))) #define GIGABYTES(count, blog) ((uint64_t)(count) << (30 - (blog))) #define MEGABYTES(count, blog) ((uint64_t)(count) << (20 - (blog))) @@ -1941,6 +1993,7 @@ main( .xi = &xi, .sb_feat = sb_feat, }; + struct mkfs_params cfg = {}; platform_uuid_generate(&uuid); progname = basename(argv[0]); @@ -2965,6 +3018,39 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), } validate_log_size(logblocks, blocklog, min_logblocks); + /* Temp support code to set up mkfs cfg parameters */ + cfg.blocksize = blocksize; + cfg.blocklog = blocklog; + cfg.sectorsize = sectorsize; + cfg.sectorlog = sectorlog; + cfg.lsectorsize = lsectorsize; + cfg.lsectorlog = lsectorlog; + cfg.dirblocksize = dirblocksize; + cfg.dirblocklog = dirblocklog; + cfg.inodesize = isize; + cfg.inodelog = inodelog; + cfg.inopblock = inopblock; + + cfg.dblocks = dblocks; + cfg.logblocks = logblocks; + cfg.rtblocks = rtblocks; + cfg.rtextblocks = rtextblocks; + cfg.rtextents = rtextents; + cfg.rtbmblocks = nbmblocks; + cfg.dsunit = dsunit; + cfg.dswidth = dswidth; + cfg.lsunit = lsunit; + cfg.agsize = agsize; + cfg.agcount = agcount; + cfg.imaxpct = imaxpct; + cfg.loginternal = loginternal; + cfg.logstart = logstart; + cfg.logagno = logagno; + cfg.label = label; + platform_uuid_copy(&cfg.uuid, &uuid); + memcpy(&cfg.sb_feat, &sb_feat, sizeof(sb_feat)); + /* end temp support code */ + if (!qflag || Nflag) { printf(_( "meta-data=%-22s isize=%-6d agcount=%lld, agsize=%lld blks\n" @@ -2994,6 +3080,7 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), exit(0); } + if (label) strncpy(sbp->sb_fname, label, sizeof(sbp->sb_fname)); sbp->sb_magicnum = XFS_SB_MAGIC; -- 2.13.3