git.sesse.net Git - bcachefs-tools-debian/blob - cmd_counters.c

   1 #include <getopt.h>
   2
   3 #include "cmds.h"
   4 #include "libbcachefs.h"
   5 #include "libbcachefs/super-io.h"
   6
   7 static void reset_counters_usage(void)
   8 {
   9         puts("bcachefs reset-counters \n"
  10              "Usage: bcachefs reset-counters device\n"
  11              "\n"
  12              "Options:\n"
  13              "  -h, --help                  display this help and exit\n"
  14              "Report bugs to <linux-bcachefs@vger.kernel.org>");
  15         exit(EXIT_SUCCESS);
  16 }
  17
  18 int cmd_reset_counters(int argc, char *argv[])
  19 {
  20         static const struct option longopts[] = {
  21                 { "help",                       0, NULL, 'h' },
  22                 { NULL }
  23         };
  24         int opt;
  25
  26         while ((opt = getopt_long(argc, argv, "h", longopts, NULL)) != -1)
  27                 switch (opt) {
  28                 case 'h':
  29                         reset_counters_usage();
  30                         break;
  31                 }
  32         args_shift(optind);
  33
  34         char *dev = arg_pop();
  35         if (!dev)
  36                 die("please supply a device");
  37         if (argc)
  38                 die("too many arguments");
  39
  40         struct bch_opts opts = bch2_opts_empty();
  41         struct bch_sb_handle sb;
  42         int ret = bch2_read_super(dev, &opts, &sb);
  43         if (ret)
  44                 die("Error opening %s: %s", dev, bch2_err_str(ret));
  45
  46         bch2_sb_field_resize(&sb, counters, 0);
  47
  48         bch2_super_write(sb.bdev->bd_buffered_fd, sb.sb);
  49         bch2_free_super(&sb);
  50         return 0;
  51 }