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              " --reconstruct_alloc     Reconstruct the alloc btree\n"
  20              "  -v                     Be verbose\n"
  21              "  -h                     Display this help and exit\n"
  22              "Report bugs to <linux-bcachefs@vger.kernel.org>");
  23 }
  24
  25 int cmd_fsck(int argc, char *argv[])
  26 {
  27         static const struct option longopts[] = {
  28                 { "reconstruct_alloc",  no_argument,            NULL, 'R' },
  29                 { NULL }
  30         };
  31         struct bch_opts opts = bch2_opts_empty();
  32         unsigned i;
  33         int opt, ret = 0;
  34
  35         opt_set(opts, degraded, true);
  36         opt_set(opts, fsck, true);
  37         opt_set(opts, fix_errors, FSCK_OPT_ASK);
  38
  39         while ((opt = getopt_long(argc, argv,
  40                                   "apynfo:vh",
  41                                   longopts, NULL)) != -1)
  42                 switch (opt) {
  43                 case 'a': /* outdated alias for -p */
  44                 case 'p':
  45                         opt_set(opts, fix_errors, FSCK_OPT_YES);
  46                         break;
  47                 case 'y':
  48                         opt_set(opts, fix_errors, FSCK_OPT_YES);
  49                         break;
  50                 case 'n':
  51                         opt_set(opts, nochanges, true);
  52                         opt_set(opts, fix_errors, FSCK_OPT_NO);
  53                         break;
  54                 case 'f':
  55                         /* force check, even if filesystem marked clean: */
  56                         break;
  57                 case 'o':
  58                         ret = bch2_parse_mount_opts(NULL, &opts, optarg);
  59                         if (ret)
  60                                 return ret;
  61                         break;
  62                 case 'R':
  63                         opt_set(opts, reconstruct_alloc, true);
  64                         break;
  65                 case 'v':
  66                         opt_set(opts, verbose, true);
  67                         break;
  68                 case 'h':
  69                         usage();
  70                         exit(16);
  71                 }
  72         args_shift(optind);
  73
  74         if (!argc) {
  75                 fprintf(stderr, "Please supply device(s) to check\n");
  76                 exit(8);
  77         }
  78
  79         for (i = 0; i < argc; i++) {
  80                 switch (dev_mounted(argv[i])) {
  81                 case 1:
  82                         ret |= 2;
  83                         break;
  84                 case 2:
  85                         fprintf(stderr, "%s is mounted read-write - aborting\n", argv[i]);
  86                         exit(8);
  87                 }
  88         }
  89
  90         struct bch_fs *c = bch2_fs_open(argv, argc, opts);
  91         if (IS_ERR(c)) {
  92                 fprintf(stderr, "error opening %s: %s\n", argv[0], strerror(-PTR_ERR(c)));
  93                 exit(8);
  94         }
  95
  96         if (test_bit(BCH_FS_ERRORS_FIXED, &c->flags))
  97                 ret |= 1;
  98         if (test_bit(BCH_FS_ERROR, &c->flags))
  99                 ret |= 4;
 100
 101         bch2_fs_stop(c);
 102         return ret;
 103 }