On Mon, Sep 21, 2015 at 08:04:20PM +0300, Mika Eloranta wrote:
> The UUID can now be optionally specified during filesystem
> creation.
Which UUID are you wanting to set - the metadata uuid or the user
visible UUID label? Or both? Can you explain the use case for this?
i.e. I'm trying to work out why Why doesn't mkfs.xfs +
xfs_admin -U <uuid> doesn't work for you?
We need some explaination in the commit message so that when we look
at this in a couple of years time we know why we added this to
mkfs...
> @@ -948,6 +948,7 @@ main(
> bool finobtflag;
> int spinodes;
>
> + platform_uuid_clear(&uuid);
> progname = basename(argv[0]);
> setlocale(LC_ALL, "");
> bindtextdomain(PACKAGE, LOCALEDIR);
> @@ -990,7 +991,7 @@ main(
> xi.isdirect = LIBXFS_DIRECT;
> xi.isreadonly = LIBXFS_EXCLUSIVELY;
>
> - while ((c = getopt(argc, argv, "b:d:i:l:L:m:n:KNp:qr:s:CfV")) != EOF) {
> + while ((c = getopt(argc, argv, "b:d:i:l:L:U:m:n:KNp:qr:s:CfV")) != EOF) {
> switch (c) {
> case 'C':
> case 'f':
> @@ -1465,6 +1466,10 @@ main(
> illegal(optarg, "L");
> label = optarg;
> break;
> + case 'U':
> + if (platform_uuid_parse(optarg, &uuid))
> + illegal(optarg, "U");
> + break;
I'd prefer not to introduce new top level options if possible - this
seems to fit under the -m (global metadata options) option subgroup
(i.e. -m uuid=<UUID>).
> case 'm':
> p = optarg;
> while (*p != '\0') {
> @@ -2550,7 +2555,9 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"),
> sbp->sb_dblocks = dblocks;
> sbp->sb_rblocks = rtblocks;
> sbp->sb_rextents = rtextents;
> - platform_uuid_generate(&uuid);
> + if (platform_uuid_is_null(&uuid)) {
> + platform_uuid_generate(&uuid);
> + }
Just generate the uuid initially and then it gets overwritten by the
CLI option if it is set. No need for null detection and generation
here.
Cheers,
Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
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