diff options
author | Dave Chinner <dchinner@redhat.com> | 2017-12-06 17:14:27 -0600 |
---|---|---|
committer | Eric Sandeen <sandeen@redhat.com> | 2017-12-06 17:14:27 -0600 |
commit | 4ab08e3b3f29f1e44040e35f388c0ed9d572be69 (patch) | |
tree | 6b1777ec19a8b8cd351f8e4f23b6878436d65796 | |
parent | f948f00a8ed70aaf3d64c15fd46b2562ca48918c (diff) | |
download | xfsprogs-dev-4ab08e3b3f29f1e44040e35f388c0ed9d572be69.tar.gz |
mkfs: Introduce mkfs configuration structure
Formatting the on disk XFS structures requires a certain set of
validated and calculated parameters. By the time we start writing
information to disk this has all been done. Abstract this information
out into a separate structures and initialise it with all the
calculated parameters so we can factor the mkfs formatting code
to use it.
Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
-rw-r--r-- | mkfs/xfs_mkfs.c | 89 |
1 files changed, 88 insertions, 1 deletions
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c index 641707cc3e..6fb7dcf437 100644 --- a/mkfs/xfs_mkfs.c +++ b/mkfs/xfs_mkfs.c @@ -735,7 +735,7 @@ cli_opt_set( * geometry validation and override any default configuration value we have. * * We don't keep flags to indicate what parameters are set - if we need to check - * if an option was set on teh command line, we check the relevant entry in the + * if an option was set on the command line, we check the relevant entry in the * option table which records whether it was specified in the .seen and * .str_seen variables in the table. * @@ -810,6 +810,58 @@ 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 the 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))) @@ -1956,6 +2008,7 @@ main( .xi = &xi, .sb_feat = sb_feat, }; + struct mkfs_params cfg = {}; platform_uuid_generate(&uuid); progname = basename(argv[0]); @@ -2987,6 +3040,39 @@ _("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" @@ -3016,6 +3102,7 @@ _("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; |