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

   1
   2 #include <getopt.h>
   3 #include "cmds.h"
   4 #include "libbcachefs/error.h"
   5 #include "libbcachefs.h"
   6 #include "libbcachefs/super.h"
   7 #include "tools-util.h"
   8
   9 static void usage(void)
  10 {
  11         puts("bcachefs fsck - filesystem check and repair\n"
  12              "Usage: bcachefs fsck [OPTION]... <devices>\n"
  13              "\n"
  14              "Options:\n"
  15              "  -p                      Automatic repair (no questions)\n"
  16              "  -n                      Don't repair, only check for errors\n"
  17              "  -y                      Assume \"yes\" to all questions\n"
  18              "  -f                      Force checking even if filesystem is marked clean\n"
  19              "  -r, --ratelimit_errors  Don't display more than 10 errors of a given type\n"
  20              "  -R, --reconstruct_alloc Reconstruct the alloc btree\n"
  21              "  -v                      Be verbose\n"
  22              "  -h, --help              Display this help and exit\n"
  23              "Report bugs to <linux-bcachefs@vger.kernel.org>");
  24 }
  25
  26 int cmd_fsck(int argc, char *argv[])
  27 {
  28         static const struct option longopts[] = {
  29                 { "ratelimit_errors",   no_argument,            NULL, 'r' },
  30                 { "reconstruct_alloc",  no_argument,            NULL, 'R' },
  31                 { "help",               no_argument,            NULL, 'h' },
  32                 { NULL }
  33         };
  34         struct bch_opts opts = bch2_opts_empty();
  35         unsigned i;
  36         int opt, ret = 0;
  37
  38         opt_set(opts, degraded, true);
  39         opt_set(opts, fsck, true);
  40         opt_set(opts, fix_errors, FSCK_OPT_ASK);
  41
  42         while ((opt = getopt_long(argc, argv,
  43                                   "apynfo:rvh",
  44                                   longopts, NULL)) != -1)
  45                 switch (opt) {
  46                 case 'a': /* outdated alias for -p */
  47                 case 'p':
  48                         opt_set(opts, fix_errors, FSCK_OPT_YES);
  49                         break;
  50                 case 'y':
  51                         opt_set(opts, fix_errors, FSCK_OPT_YES);
  52                         break;
  53                 case 'n':
  54                         opt_set(opts, nochanges, true);
  55                         opt_set(opts, fix_errors, FSCK_OPT_NO);
  56                         break;
  57                 case 'f':
  58                         /* force check, even if filesystem marked clean: */
  59                         break;
  60                 case 'o':
  61                         ret = bch2_parse_mount_opts(NULL, &opts, optarg);
  62                         if (ret)
  63                                 return ret;
  64                         break;
  65                 case 'r':
  66                         opt_set(opts, ratelimit_errors, true);
  67                         break;
  68                 case 'R':
  69                         opt_set(opts, reconstruct_alloc, true);
  70                         break;
  71                 case 'v':
  72                         opt_set(opts, verbose, true);
  73                         break;
  74                 case 'h':
  75                         usage();
  76                         exit(16);
  77                 }
  78         args_shift(optind);
  79
  80         if (!argc) {
  81                 fprintf(stderr, "Please supply device(s) to check\n");
  82                 exit(8);
  83         }
  84
  85         for (i = 0; i < argc; i++) {
  86                 switch (dev_mounted(argv[i])) {
  87                 case 1:
  88                         ret |= 2;
  89                         break;
  90                 case 2:
  91                         fprintf(stderr, "%s is mounted read-write - aborting\n", argv[i]);
  92                         exit(8);
  93                 }
  94         }
  95
  96         struct bch_fs *c = bch2_fs_open(argv, argc, opts);
  97         if (IS_ERR(c)) {
  98                 fprintf(stderr, "error opening %s: %s\n", argv[0], bch2_err_str(PTR_ERR(c)));
  99                 exit(8);
 100         }
 101
 102         if (test_bit(BCH_FS_ERRORS_FIXED, &c->flags)) {
 103                 fprintf(stderr, "%s: errors fixed\n", c->name);
 104                 ret |= 1;
 105         }
 106         if (test_bit(BCH_FS_ERROR, &c->flags)) {
 107                 fprintf(stderr, "%s: still has errors\n", c->name);
 108                 ret |= 4;
 109         }
 110
 111         bch2_fs_stop(c);
 112         return ret;
 113 }