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

   1
   2 #include <stdio.h>
   3 #include <sys/ioctl.h>
   4
   5 #include <uuid/uuid.h>
   6
   7 #include "ccan/darray/darray.h"
   8
   9 #include "linux/sort.h"
  10
  11 #include "libbcachefs/bcachefs_ioctl.h"
  12 #include "libbcachefs/opts.h"
  13
  14 #include "cmds.h"
  15 #include "libbcachefs.h"
  16
  17 static void print_dev_usage(struct bch_ioctl_dev_usage *d, unsigned idx,
  18                             const char *label, enum units units)
  19 {
  20         char *name = NULL;
  21         u64 available = d->nr_buckets;
  22         unsigned i;
  23
  24         printf("\n");
  25         printf_pad(20, "%s (device %u):", label, idx);
  26
  27         name = !d->dev ? strdup("(offline)")
  28                 : dev_to_path(d->dev)
  29                 ?: strdup("(device not found)");
  30         printf("%24s%12s\n", name, bch2_dev_state[d->state]);
  31         free(name);
  32
  33         printf("%-20s%12s%12s%12s\n",
  34                "", "data", "buckets", "fragmented");
  35
  36         for (i = BCH_DATA_SB; i < BCH_DATA_NR; i++) {
  37                 u64 frag = max((s64) d->buckets[i] * d->bucket_size -
  38                                (s64) d->sectors[i], 0LL);
  39
  40                 printf_pad(20, "  %s:", bch2_data_types[i]);
  41                 printf("%12s%12llu%12s\n",
  42                        pr_units(d->sectors[i], units),
  43                        d->buckets[i],
  44                        pr_units(frag, units));
  45
  46                 if (i != BCH_DATA_CACHED)
  47                         available -= d->buckets[i];
  48         }
  49
  50         printf_pad(20, "  available:");
  51         printf("%12s%12llu\n",
  52                pr_units(available * d->bucket_size, units),
  53                available);
  54
  55         printf_pad(20, "  capacity:");
  56         printf("%12s%12llu\n",
  57                pr_units(d->nr_buckets * d->bucket_size, units),
  58                d->nr_buckets);
  59 }
  60
  61 struct dev_by_label {
  62         unsigned        idx;
  63         char            *label;
  64 };
  65
  66 static int dev_by_label_cmp(const void *_l, const void *_r)
  67 {
  68         const struct dev_by_label *l = _l, *r = _r;
  69
  70         return strcmp(l->label, r->label);
  71 }
  72
  73 static void print_fs_usage(const char *path, enum units units)
  74 {
  75         unsigned i, j;
  76         char uuid[40];
  77
  78         struct bchfs_handle fs = bcache_fs_open(path);
  79         struct bch_ioctl_usage *u = bchu_usage(fs);
  80
  81         uuid_unparse(fs.uuid.b, uuid);
  82         printf("Filesystem %s:\n", uuid);
  83
  84         printf("%-20s%12s\n", "Size:", pr_units(u->fs.capacity, units));
  85         printf("%-20s%12s\n", "Used:", pr_units(u->fs.used, units));
  86
  87         printf("%-20s%12s%12s%12s%12s\n",
  88                "By replicas:", "1x", "2x", "3x", "4x");
  89
  90         for (j = BCH_DATA_SB; j < BCH_DATA_NR; j++) {
  91                 printf_pad(20, "  %s:", bch2_data_types[j]);
  92
  93                 for (i = 0; i < BCH_REPLICAS_MAX; i++)
  94                         printf("%12s", pr_units(u->fs.sectors[j][i], units));
  95                 printf("\n");
  96         }
  97
  98         printf_pad(20, "  %s:", "reserved");
  99         for (i = 0; i < BCH_REPLICAS_MAX; i++)
 100                 printf("%12s", pr_units(u->fs.persistent_reserved[i], units));
 101         printf("\n");
 102
 103         printf("%-20s%12s\n", "  online reserved:", pr_units(u->fs.online_reserved, units));
 104
 105         darray(struct dev_by_label) devs_by_label;
 106         darray_init(devs_by_label);
 107
 108         for (i = 0; i < u->nr_devices; i++) {
 109                 struct bch_ioctl_dev_usage *d = u->devs + i;
 110
 111                 if (!d->alive)
 112                         continue;
 113
 114                 char *label_attr = mprintf("dev-%u/label", i);
 115                 char *label = read_file_str(fs.sysfs_fd, label_attr);
 116                 free(label_attr);
 117
 118                 darray_append(devs_by_label,
 119                         (struct dev_by_label) { i, label });
 120         }
 121
 122         sort(&darray_item(devs_by_label, 0), darray_size(devs_by_label),
 123              sizeof(darray_item(devs_by_label, 0)), dev_by_label_cmp, NULL);
 124
 125         struct dev_by_label *d;
 126         darray_foreach(d, devs_by_label)
 127                 print_dev_usage(u->devs + d->idx, d->idx, d->label, units);
 128
 129         darray_foreach(d, devs_by_label)
 130                 free(d->label);
 131         darray_free(devs_by_label);
 132
 133         free(u);
 134         bcache_fs_close(fs);
 135 }
 136
 137 int cmd_fs_usage(int argc, char *argv[])
 138 {
 139         enum units units = BYTES;
 140         char *fs;
 141         int opt;
 142
 143         while ((opt = getopt(argc, argv, "h")) != -1)
 144                 switch (opt) {
 145                 case 'h':
 146                         units = HUMAN_READABLE;
 147                         break;
 148                 }
 149         args_shift(optind);
 150
 151         if (!argc) {
 152                 print_fs_usage(".", units);
 153         } else {
 154                 while ((fs = arg_pop()))
 155                         print_fs_usage(fs, units);
 156         }
 157
 158         return 0;
 159 }