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

   1 #include <getopt.h>
   2 #include <stdio.h>
   3 #include <sys/ioctl.h>
   4
   5 #include <uuid/uuid.h>
   6
   7 #include "linux/sort.h"
   8
   9 #include "libbcachefs/bcachefs_ioctl.h"
  10 #include "libbcachefs/darray.h"
  11 #include "libbcachefs/opts.h"
  12
  13 #include "cmds.h"
  14 #include "libbcachefs.h"
  15
  16 static void __dev_usage_type_to_text(struct printbuf *out,
  17                                      const char *type,
  18                                      unsigned bucket_size,
  19                                      u64 buckets, u64 sectors, u64 frag)
  20 {
  21         prt_printf(out, "%s:", type);
  22         prt_tab(out);
  23
  24         prt_units_u64(out, sectors << 9);
  25         prt_tab_rjust(out);
  26
  27         prt_printf(out, "%llu", buckets);
  28         prt_tab_rjust(out);
  29
  30         if (frag) {
  31                 prt_units_u64(out, frag << 9);
  32                 prt_tab_rjust(out);
  33         }
  34         prt_newline(out);
  35 }
  36
  37 static void dev_usage_type_to_text(struct printbuf *out,
  38                                    struct bch_ioctl_dev_usage *u,
  39                                    enum bch_data_type type)
  40 {
  41         __dev_usage_type_to_text(out, bch2_data_types[type],
  42                         u->bucket_size,
  43                         u->d[type].buckets,
  44                         u->d[type].sectors,
  45                         u->d[type].fragmented);
  46 }
  47
  48 static void dev_usage_to_text(struct printbuf *out,
  49                               struct bchfs_handle fs,
  50                               struct dev_name *d)
  51 {
  52         struct bch_ioctl_dev_usage u = bchu_dev_usage(fs, d->idx);
  53         unsigned i;
  54
  55         prt_newline(out);
  56         prt_printf(out, "%s (device %u):", d->label ?: "(no label)", d->idx);
  57         prt_tab(out);
  58         prt_str(out, d->dev ?: "(device not found)");
  59         prt_tab_rjust(out);
  60
  61         prt_str(out, bch2_member_states[u.state]);
  62         prt_tab_rjust(out);
  63
  64         prt_newline(out);
  65
  66         printbuf_indent_add(out, 2);
  67         prt_tab(out);
  68
  69         prt_str(out, "data");
  70         prt_tab_rjust(out);
  71
  72         prt_str(out, "buckets");
  73         prt_tab_rjust(out);
  74
  75         prt_str(out, "fragmented");
  76         prt_tab_rjust(out);
  77
  78         prt_newline(out);
  79
  80         for (i = 0; i < BCH_DATA_NR; i++)
  81                 dev_usage_type_to_text(out, &u, i);
  82         __dev_usage_type_to_text(out, "erasure coded",
  83                                  u.bucket_size,
  84                                  u.buckets_ec, u.buckets_ec * u.bucket_size, 0);
  85
  86         prt_str(out, "capacity:");
  87         prt_tab(out);
  88
  89         prt_units_u64(out, (u.nr_buckets * u.bucket_size) << 9);
  90         prt_tab_rjust(out);
  91         prt_printf(out, "%llu", u.nr_buckets);
  92         prt_tab_rjust(out);
  93
  94         printbuf_indent_sub(out, 2);
  95
  96         prt_newline(out);
  97 }
  98
  99 static int dev_by_label_cmp(const void *_l, const void *_r)
 100 {
 101         const struct dev_name *l = _l, *r = _r;
 102
 103         return  (l->label && r->label
 104                  ? strcmp(l->label, r->label) : 0) ?:
 105                 (l->dev && r->dev
 106                  ? strcmp(l->dev, r->dev) : 0) ?:
 107                 cmp_int(l->idx, r->idx);
 108 }
 109
 110 static struct dev_name *dev_idx_to_name(dev_names *dev_names, unsigned idx)
 111 {
 112         struct dev_name *dev;
 113
 114         darray_for_each(*dev_names, dev)
 115                 if (dev->idx == idx)
 116                         return dev;
 117
 118         return NULL;
 119 }
 120
 121 static void replicas_usage_to_text(struct printbuf *out,
 122                                    const struct bch_replicas_usage *r,
 123                                    dev_names *dev_names)
 124 {
 125         unsigned i;
 126
 127         if (!r->sectors)
 128                 return;
 129
 130         char devs[4096], *d = devs;
 131         *d++ = '[';
 132
 133         for (i = 0; i < r->r.nr_devs; i++) {
 134                 unsigned dev_idx = r->r.devs[i];
 135                 struct dev_name *dev = dev_idx_to_name(dev_names, dev_idx);
 136
 137                 if (i)
 138                         *d++ = ' ';
 139
 140                 d += dev && dev->dev
 141                         ? sprintf(d, "%s", dev->dev)
 142                         : sprintf(d, "%u", dev_idx);
 143         }
 144         *d++ = ']';
 145         *d++ = '\0';
 146
 147         prt_printf(out, "%s: ", bch2_data_types[r->r.data_type]);
 148         prt_tab(out);
 149
 150         prt_printf(out, "%u/%u ", r->r.nr_required, r->r.nr_devs);
 151         prt_tab(out);
 152
 153         prt_printf(out, "%s ", devs);
 154         prt_tab(out);
 155
 156         prt_units_u64(out, r->sectors << 9);
 157         prt_tab_rjust(out);
 158         prt_newline(out);
 159 }
 160
 161 #define for_each_usage_replica(_u, _r)                                  \
 162         for (_r = (_u)->replicas;                                       \
 163              _r != (void *) (_u)->replicas + (_u)->replica_entries_bytes;\
 164              _r = replicas_usage_next(_r),                              \
 165              BUG_ON((void *) _r > (void *) (_u)->replicas + (_u)->replica_entries_bytes))
 166
 167 static void fs_usage_to_text(struct printbuf *out, const char *path)
 168 {
 169         unsigned i;
 170
 171         struct bchfs_handle fs = bcache_fs_open(path);
 172
 173         struct dev_name *dev;
 174         dev_names dev_names = bchu_fs_get_devices(fs);
 175
 176         struct bch_ioctl_fs_usage *u = bchu_fs_usage(fs);
 177
 178         prt_str(out, "Filesystem: ");
 179         pr_uuid(out, fs.uuid.b);
 180         prt_newline(out);
 181
 182         printbuf_tabstops_reset(out);
 183         printbuf_tabstop_push(out, 20);
 184         printbuf_tabstop_push(out, 16);
 185
 186         prt_str(out, "Size:");
 187         prt_tab(out);
 188         prt_units_u64(out, u->capacity << 9);
 189         prt_tab_rjust(out);
 190         prt_newline(out);
 191
 192         prt_str(out, "Used:");
 193         prt_tab(out);
 194         prt_units_u64(out, u->used << 9);
 195         prt_tab_rjust(out);
 196         prt_newline(out);
 197
 198         prt_str(out, "Online reserved:");
 199         prt_tab(out);
 200         prt_units_u64(out, u->online_reserved << 9);
 201         prt_tab_rjust(out);
 202         prt_newline(out);
 203
 204         prt_newline(out);
 205
 206         printbuf_tabstops_reset(out);
 207         printbuf_tabstop_push(out, 16);
 208         printbuf_tabstop_push(out, 16);
 209         printbuf_tabstop_push(out, 18);
 210         printbuf_tabstop_push(out, 18);
 211
 212         prt_str(out, "Data type");
 213         prt_tab(out);
 214
 215         prt_str(out, "Required/total");
 216         prt_tab(out);
 217
 218         prt_str(out, "Devices");
 219         prt_newline(out);
 220
 221         for (i = 0; i < BCH_REPLICAS_MAX; i++) {
 222                 if (!u->persistent_reserved[i])
 223                         continue;
 224
 225                 prt_str(out, "reserved:");
 226                 prt_tab(out);
 227                 prt_printf(out, "%u/%u ", 1, i);
 228                 prt_tab(out);
 229                 prt_str(out, "[] ");
 230                 prt_units_u64(out, u->persistent_reserved[i] << 9);
 231                 prt_tab_rjust(out);
 232                 prt_newline(out);
 233         }
 234
 235         struct bch_replicas_usage *r;
 236
 237         for_each_usage_replica(u, r)
 238                 if (r->r.data_type < BCH_DATA_user)
 239                         replicas_usage_to_text(out, r, &dev_names);
 240
 241         for_each_usage_replica(u, r)
 242                 if (r->r.data_type == BCH_DATA_user &&
 243                     r->r.nr_required <= 1)
 244                         replicas_usage_to_text(out, r, &dev_names);
 245
 246         for_each_usage_replica(u, r)
 247                 if (r->r.data_type == BCH_DATA_user &&
 248                     r->r.nr_required > 1)
 249                         replicas_usage_to_text(out, r, &dev_names);
 250
 251         for_each_usage_replica(u, r)
 252                 if (r->r.data_type > BCH_DATA_user)
 253                         replicas_usage_to_text(out, r, &dev_names);
 254
 255         free(u);
 256
 257         sort(dev_names.data, dev_names.nr,
 258              sizeof(dev_names.data[0]), dev_by_label_cmp, NULL);
 259
 260         printbuf_tabstops_reset(out);
 261         printbuf_tabstop_push(out, 16);
 262         printbuf_tabstop_push(out, 20);
 263         printbuf_tabstop_push(out, 16);
 264         printbuf_tabstop_push(out, 14);
 265
 266         darray_for_each(dev_names, dev)
 267                 dev_usage_to_text(out, fs, dev);
 268
 269         darray_for_each(dev_names, dev) {
 270                 free(dev->dev);
 271                 free(dev->label);
 272         }
 273         darray_exit(&dev_names);
 274
 275         bcache_fs_close(fs);
 276 }
 277
 278 static void fs_usage_usage(void)
 279 {
 280         puts("bcachefs fs usage - display detailed filesystem usage\n"
 281              "Usage: bcachefs fs usage [OPTION]... <mountpoint>\n"
 282              "\n"
 283              "Options:\n"
 284              "  -h, --human-readable              Human readable units\n"
 285              "      --help                        Display this help and exit\n"
 286              "Report bugs to <linux-bcachefs@vger.kernel.org>");
 287 }
 288
 289 int cmd_fs_usage(int argc, char *argv[])
 290 {
 291         static const struct option longopts[] = {
 292                 { "help",               no_argument,            NULL, 'H' },
 293                 { NULL }
 294         };
 295         bool human_readable = false;
 296         struct printbuf buf = PRINTBUF;
 297         char *fs;
 298         int opt;
 299
 300         while ((opt = getopt_long(argc, argv, "h",
 301                                   longopts, NULL)) != -1)
 302                 switch (opt) {
 303                 case 'h':
 304                         human_readable = true;
 305                         break;
 306                 case 'H':
 307                         fs_usage_usage();
 308                         exit(EXIT_SUCCESS);
 309                 default:
 310                         fs_usage_usage();
 311                         exit(EXIT_FAILURE);
 312                 }
 313         args_shift(optind);
 314
 315         if (!argc) {
 316                 printbuf_reset(&buf);
 317                 buf.human_readable_units = human_readable;
 318                 fs_usage_to_text(&buf, ".");
 319                 printf("%s", buf.buf);
 320         } else {
 321                 while ((fs = arg_pop())) {
 322                         printbuf_reset(&buf);
 323                         buf.human_readable_units = human_readable;
 324                         fs_usage_to_text(&buf, fs);
 325                         printf("%s", buf.buf);
 326                 }
 327         }
 328
 329         printbuf_exit(&buf);
 330         return 0;
 331 }