gfs2-utils: master - mkfs.gfs2: Add options for stripe size and width

Gitweb: http://git.fedorahosted.org/git/?p=gfs2-utils.git;a=commitdiff;h=a3ab0821... Commit: a3ab08213c87313ec899c114c23650d05268eef5 Parent: 457c8b6139c5c277db5a8b1a4a8d81aefeded05a Author: Andrew Price <anprice(a)redhat.com&gt; AuthorDate: Fri Mar 1 15:56:58 2013 +0000 Committer: Andrew Price <anprice(a)redhat.com&gt; CommitterDate: Tue May 14 13:48:46 2013 +0100 mkfs.gfs2: Add options for stripe size and width Add generic parsing of options passed in with -o and use it to accept sunit and swidth options (names chosen to be the same as mkfs.xfs). We don't do anything with these options yet. Signed-off-by: Andrew Price <anprice(a)redhat.com&gt; --- gfs2/mkfs/main_mkfs.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 98 insertions(+), 2 deletions(-) diff --git a/gfs2/mkfs/main_mkfs.c b/gfs2/mkfs/main_mkfs.c index 610a641..6471600 100644 --- a/gfs2/mkfs/main_mkfs.c +++ b/gfs2/mkfs/main_mkfs.c @@ -19,6 +19,7 @@ #include <sys/time.h> #include <libintl.h> #include <sys/ioctl.h> +#include <limits.h> #define _(String) gettext(String) @@ -55,6 +56,7 @@ static void print_usage(const char *prog_name) "-j", _("<number>"), _("Number of journals"), "-K", NULL, _("Don't try to discard unused blocks"), "-O", NULL, _("Don't ask for confirmation"), + "-o", _("<key>[=<value>][,...]"), _("Specify extended options"), "-p", _("<name>"), _("Name of the locking protocol"), "-q", NULL, _("Don't print anything"), "-r", _("<size>"), _("Size of resource groups, in megabytes"), @@ -73,7 +75,7 @@ static void print_usage(const char *prog_name) option = options[i]; param = options[i+1]; desc = options[i+2]; - printf("%3s %-15s %s\n", option, param ? param : "", desc); + printf("%3s %-22s %s\n", option, param ? param : "", desc); } } @@ -82,6 +84,8 @@ struct mkfs_opts { unsigned qcsize; unsigned jsize; unsigned rgsize; + unsigned sunit; + unsigned swidth; uint64_t fssize; uint32_t journals; const char *lockproto; @@ -93,6 +97,8 @@ struct mkfs_opts { unsigned got_qcsize:1; unsigned got_jsize:1; unsigned got_rgsize:1; + unsigned got_sunit:1; + unsigned got_swidth:1; unsigned got_fssize:1; unsigned got_journals:1; unsigned got_lockproto:1; @@ -145,11 +151,91 @@ static int discard_blocks(int fd, uint64_t len, int debug) return 0; } +/** + * Convert a human-readable size string to a long long. + * Copied and adapted from xfs_mkfs.c. + */ +static long long cvtnum(unsigned int blocksize, unsigned int sectorsize, const char *s) +{ + long long i; + char *sp; + + i = strtoll(s, &sp, 0); + if (i == 0 && sp == s) + return -1LL; + if (*sp == '\0') + return i; + + *sp = tolower(*sp); + if (*sp == 'b' && sp[1] == '\0') { + if (blocksize) + return i * blocksize; + fprintf(stderr, _("Block size not available yet.\n")); + exit(1); + } + if (*sp == 's' && sp[1] == '\0') { + if (sectorsize) + return i * sectorsize; + return i * GFS2_BASIC_BLOCK; + } + if (*sp == 'k' && sp[1] == '\0') + return 1024LL * i; + if (*sp == 'm' && sp[1] == '\0') + return 1024LL * 1024LL * i; + if (*sp == 'g' && sp[1] == '\0') + return 1024LL * 1024LL * 1024LL * i; + if (*sp == 't' && sp[1] == '\0') + return 1024LL * 1024LL * 1024LL * 1024LL * i; + if (*sp == 'p' && sp[1] == '\0') + return 1024LL * 1024LL * 1024LL * 1024LL * 1024LL * i; + if (*sp == 'e' && sp[1] == '\0') + return 1024LL * 1024LL * 1024LL * 1024LL * 1024LL * 1024LL * i; + return -1LL; +} + +static void parse_unsigned(struct mkfs_opts *opts, const char *key, const char *val, unsigned *n) +{ + long long l; + if (val == NULL || *val == '\0') { + fprintf(stderr, _("Missing argument to '%s'\n"), key); + exit(-1); + } + l = cvtnum(opts->bsize, 0, val); + if (l > UINT_MAX || l < 0) { + fprintf(stderr, _("Value of '%s' is invalid\n"), key); + exit(-1); + } + *n = (unsigned)l; +} + +static void opt_parse_extended(char *str, struct mkfs_opts *opts) +{ + char *opt; + while ((opt = strsep(&str, ",")) != NULL) { + char *key = strsep(&opt, "="); + char *val = strsep(&opt, "="); + if (key == NULL || *key == '\0') { + fprintf(stderr, _("Missing argument to '-o' option\n")); + exit(-1); + } + if (strcmp("sunit", key) == 0) { + parse_unsigned(opts, "sunit", val, &opts->sunit); + opts->got_sunit = 1; + } else if (strcmp("swidth", key) == 0) { + parse_unsigned(opts, "swidth", val, &opts->swidth); + opts->got_swidth = 1; + } else { + fprintf(stderr, _("Invalid option '%s'\n"), key); + exit(-1); + } + } +} + static void opts_get(int argc, char *argv[], struct mkfs_opts *opts) { int c; while (1) { - c = getopt(argc, argv, "-b:c:DhJ:j:KOp:qr:t:VX"); + c = getopt(argc, argv, "-b:c:DhJ:j:KOo:p:qr:t:VX"); if (c == -1) break; @@ -197,6 +283,9 @@ static void opts_get(int argc, char *argv[], struct mkfs_opts *opts) opts->rgsize = atoi(optarg); opts->got_rgsize = 1; break; + case 'o': + opt_parse_extended(optarg, opts); + break; case 'V': printf("mkfs.gfs2 %s (built %s %s)\n", VERSION, __DATE__, __TIME__); @@ -655,6 +744,8 @@ static void sbd_init(struct gfs2_sbd *sdp, struct mkfs_opts *opts, struct lgfs2_ printf(" rgsize = %u\n", sdp->rgsize); printf(" table = %s\n", sdp->locktable); printf(" fssize = %"PRIu64"\n", opts->fssize); + printf(" sunit = %u\n", opts->sunit); + printf(" swidth = %u\n", opts->swidth); } } @@ -673,6 +764,11 @@ void main_mkfs(int argc, char *argv[]) opts_init(&opts); opts_get(argc, argv, &opts); + if (!opts.got_device) { + fprintf(stderr, _("No device specified. Use -h for help\n")); + exit(1); + } + fd = open(opts.device, O_RDWR | O_CLOEXEC); if (fd < 0){ perror(opts.device);