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 #include "libbcachefs/super-io.h"
  13
  14 #include "cmds.h"
  15 #include "libbcachefs.h"
  16
  17 static void __dev_usage_type_to_text(struct printbuf *out,
  18                                      const char *type,
  19                                      unsigned bucket_size,
  20                                      u64 buckets, u64 sectors, u64 frag)
  21 {
  22         prt_printf(out, "%s:", type);
  23         prt_tab(out);
  24
  25         prt_units_u64(out, sectors << 9);
  26         prt_tab_rjust(out);
  27
  28         prt_printf(out, "%llu", buckets);
  29         prt_tab_rjust(out);
  30
  31         if (frag) {
  32                 prt_units_u64(out, frag << 9);
  33                 prt_tab_rjust(out);
  34         }
  35         prt_newline(out);
  36 }
  37
  38 static void dev_usage_type_to_text(struct printbuf *out,
  39                                    struct bch_ioctl_dev_usage_v2 *u,
  40                                    enum bch_data_type type)
  41 {
  42         u64 sectors = 0;
  43         switch (type) {
  44         case BCH_DATA_free:
  45         case BCH_DATA_need_discard:
  46         case BCH_DATA_need_gc_gens:
  47                 /* sectors are 0 for these types so calculate sectors for them */
  48                 sectors = u->d[type].buckets * u->bucket_size;
  49                 break;
  50         default:
  51                 sectors = u->d[type].sectors;
  52         }
  53
  54         __dev_usage_type_to_text(out, bch2_data_types[type],
  55                         u->bucket_size,
  56                         u->d[type].buckets,
  57                         sectors,
  58                         u->d[type].fragmented);
  59 }
  60
  61 static void dev_usage_to_text(struct printbuf *out,
  62                               struct bchfs_handle fs,
  63                               struct dev_name *d)
  64 {
  65         struct bch_ioctl_dev_usage_v2 *u = bchu_dev_usage(fs, d->idx);
  66
  67         prt_newline(out);
  68         prt_printf(out, "%s (device %u):", d->label ?: "(no label)", d->idx);
  69         prt_tab(out);
  70         prt_str(out, d->dev ?: "(device not found)");
  71         prt_tab_rjust(out);
  72
  73         prt_str(out, bch2_member_states[u->state]);
  74         prt_tab_rjust(out);
  75
  76         prt_newline(out);
  77
  78         printbuf_indent_add(out, 2);
  79         prt_tab(out);
  80
  81         prt_str(out, "data");
  82         prt_tab_rjust(out);
  83
  84         prt_str(out, "buckets");
  85         prt_tab_rjust(out);
  86
  87         prt_str(out, "fragmented");
  88         prt_tab_rjust(out);
  89
  90         prt_newline(out);
  91
  92         for (unsigned i = 0; i < u->nr_data_types; i++)
  93                 dev_usage_type_to_text(out, u, i);
  94
  95         prt_str(out, "capacity:");
  96         prt_tab(out);
  97
  98         prt_units_u64(out, (u->nr_buckets * u->bucket_size) << 9);
  99         prt_tab_rjust(out);
 100         prt_printf(out, "%llu", u->nr_buckets);
 101         prt_tab_rjust(out);
 102
 103         printbuf_indent_sub(out, 2);
 104
 105         prt_newline(out);
 106         free(u);
 107 }
 108
 109 static int dev_by_label_cmp(const void *_l, const void *_r)
 110 {
 111         const struct dev_name *l = _l, *r = _r;
 112
 113         return  (l->label && r->label
 114                  ? strcmp(l->label, r->label) : 0) ?:
 115                 (l->dev && r->dev
 116                  ? strcmp(l->dev, r->dev) : 0) ?:
 117                 cmp_int(l->idx, r->idx);
 118 }
 119
 120 static struct dev_name *dev_idx_to_name(dev_names *dev_names, unsigned idx)
 121 {
 122         darray_for_each(*dev_names, dev)
 123                 if (dev->idx == idx)
 124                         return dev;
 125         return NULL;
 126 }
 127
 128 static void replicas_usage_to_text(struct printbuf *out,
 129                                    const struct bch_replicas_usage *r,
 130                                    dev_names *dev_names)
 131 {
 132         if (!r->sectors)
 133                 return;
 134
 135         char devs[4096], *d = devs;
 136         *d++ = '[';
 137
 138         unsigned durability = 0;
 139
 140         for (unsigned i = 0; i < r->r.nr_devs; i++) {
 141                 unsigned dev_idx = r->r.devs[i];
 142                 struct dev_name *dev = dev_idx_to_name(dev_names, dev_idx);
 143
 144                 durability += dev->durability;
 145
 146                 if (i)
 147                         *d++ = ' ';
 148
 149                 d += dev && dev->dev
 150                         ? sprintf(d, "%s", dev->dev)
 151                         : sprintf(d, "%u", dev_idx);
 152         }
 153         *d++ = ']';
 154         *d++ = '\0';
 155
 156         prt_printf(out, "%s: ", bch2_data_types[r->r.data_type]);
 157         prt_tab(out);
 158
 159         prt_printf(out, "%u/%u ", r->r.nr_required, r->r.nr_devs);
 160         prt_tab(out);
 161
 162         prt_printf(out, "%u ", durability);
 163         prt_tab(out);
 164
 165         prt_printf(out, "%s ", devs);
 166         prt_tab(out);
 167
 168         prt_units_u64(out, r->sectors << 9);
 169         prt_tab_rjust(out);
 170         prt_newline(out);
 171 }
 172
 173 #define for_each_usage_replica(_u, _r)                                  \
 174         for (_r = (_u)->replicas;                                       \
 175              _r != (void *) (_u)->replicas + (_u)->replica_entries_bytes;\
 176              _r = replicas_usage_next(_r),                              \
 177              BUG_ON((void *) _r > (void *) (_u)->replicas + (_u)->replica_entries_bytes))
 178
 179 static void fs_usage_to_text(struct printbuf *out, const char *path)
 180 {
 181         unsigned i;
 182
 183         struct bchfs_handle fs = bcache_fs_open(path);
 184
 185         dev_names dev_names = bchu_fs_get_devices(fs);
 186
 187         struct bch_ioctl_fs_usage *u = bchu_fs_usage(fs);
 188
 189         prt_str(out, "Filesystem: ");
 190         pr_uuid(out, fs.uuid.b);
 191         prt_newline(out);
 192
 193         printbuf_tabstops_reset(out);
 194         printbuf_tabstop_push(out, 20);
 195         printbuf_tabstop_push(out, 16);
 196
 197         prt_str(out, "Size:");
 198         prt_tab(out);
 199         prt_units_u64(out, u->capacity << 9);
 200         prt_tab_rjust(out);
 201         prt_newline(out);
 202
 203         prt_str(out, "Used:");
 204         prt_tab(out);
 205         prt_units_u64(out, u->used << 9);
 206         prt_tab_rjust(out);
 207         prt_newline(out);
 208
 209         prt_str(out, "Online reserved:");
 210         prt_tab(out);
 211         prt_units_u64(out, u->online_reserved << 9);
 212         prt_tab_rjust(out);
 213         prt_newline(out);
 214
 215         prt_newline(out);
 216
 217         printbuf_tabstops_reset(out);
 218
 219         printbuf_tabstop_push(out, 16);
 220         prt_str(out, "Data type");
 221         prt_tab(out);
 222
 223         printbuf_tabstop_push(out, 16);
 224         prt_str(out, "Required/total");
 225         prt_tab(out);
 226
 227         printbuf_tabstop_push(out, 14);
 228         prt_str(out, "Durability");
 229         prt_tab(out);
 230
 231         printbuf_tabstop_push(out, 14);
 232         prt_str(out, "Devices");
 233         prt_newline(out);
 234
 235         printbuf_tabstop_push(out, 14);
 236
 237         for (i = 0; i < BCH_REPLICAS_MAX; i++) {
 238                 if (!u->persistent_reserved[i])
 239                         continue;
 240
 241                 prt_str(out, "reserved:");
 242                 prt_tab(out);
 243                 prt_printf(out, "%u/%u ", 1, i);
 244                 prt_tab(out);
 245                 prt_str(out, "[] ");
 246                 prt_units_u64(out, u->persistent_reserved[i] << 9);
 247                 prt_tab_rjust(out);
 248                 prt_newline(out);
 249         }
 250
 251         struct bch_replicas_usage *r;
 252
 253         for_each_usage_replica(u, r)
 254                 if (r->r.data_type < BCH_DATA_user)
 255                         replicas_usage_to_text(out, r, &dev_names);
 256
 257         for_each_usage_replica(u, r)
 258                 if (r->r.data_type == BCH_DATA_user &&
 259                     r->r.nr_required <= 1)
 260                         replicas_usage_to_text(out, r, &dev_names);
 261
 262         for_each_usage_replica(u, r)
 263                 if (r->r.data_type == BCH_DATA_user &&
 264                     r->r.nr_required > 1)
 265                         replicas_usage_to_text(out, r, &dev_names);
 266
 267         for_each_usage_replica(u, r)
 268                 if (r->r.data_type > BCH_DATA_user)
 269                         replicas_usage_to_text(out, r, &dev_names);
 270
 271         free(u);
 272
 273         sort(dev_names.data, dev_names.nr,
 274              sizeof(dev_names.data[0]), dev_by_label_cmp, NULL);
 275
 276         printbuf_tabstops_reset(out);
 277         printbuf_tabstop_push(out, 16);
 278         printbuf_tabstop_push(out, 20);
 279         printbuf_tabstop_push(out, 16);
 280         printbuf_tabstop_push(out, 14);
 281
 282         darray_for_each(dev_names, dev)
 283                 dev_usage_to_text(out, fs, dev);
 284
 285         darray_for_each(dev_names, dev) {
 286                 free(dev->dev);
 287                 free(dev->label);
 288         }
 289         darray_exit(&dev_names);
 290
 291         bcache_fs_close(fs);
 292 }
 293
 294 static void fs_usage_usage(void)
 295 {
 296         puts("bcachefs fs usage - display detailed filesystem usage\n"
 297              "Usage: bcachefs fs usage [OPTION]... <mountpoint>\n"
 298              "\n"
 299              "Options:\n"
 300              "  -h, --human-readable              Human readable units\n"
 301              "  -H, --help                        Display this help and exit\n"
 302              "Report bugs to <linux-bcachefs@vger.kernel.org>");
 303 }
 304
 305 int cmd_fs_usage(int argc, char *argv[])
 306 {
 307         static const struct option longopts[] = {
 308                 { "help",               no_argument,            NULL, 'H' },
 309                 { "human-readable",     no_argument,            NULL, 'h' },
 310                 { NULL }
 311         };
 312         bool human_readable = false;
 313         struct printbuf buf = PRINTBUF;
 314         char *fs;
 315         int opt;
 316
 317         while ((opt = getopt_long(argc, argv, "h",
 318                                   longopts, NULL)) != -1)
 319                 switch (opt) {
 320                 case 'h':
 321                         human_readable = true;
 322                         break;
 323                 case 'H':
 324                         fs_usage_usage();
 325                         exit(EXIT_SUCCESS);
 326                 default:
 327                         fs_usage_usage();
 328                         exit(EXIT_FAILURE);
 329                 }
 330         args_shift(optind);
 331
 332         if (!argc) {
 333                 printbuf_reset(&buf);
 334                 buf.human_readable_units = human_readable;
 335                 fs_usage_to_text(&buf, ".");
 336                 printf("%s", buf.buf);
 337         } else {
 338                 while ((fs = arg_pop())) {
 339                         printbuf_reset(&buf);
 340                         buf.human_readable_units = human_readable;
 341                         fs_usage_to_text(&buf, fs);
 342                         printf("%s", buf.buf);
 343                 }
 344         }
 345
 346         printbuf_exit(&buf);
 347         return 0;
 348 }