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         __dev_usage_type_to_text(out, bch2_data_types[type],
  43                         u->bucket_size,
  44                         u->d[type].buckets,
  45                         u->d[type].sectors,
  46                         u->d[type].fragmented);
  47 }
  48
  49 static void dev_usage_to_text(struct printbuf *out,
  50                               struct bchfs_handle fs,
  51                               struct dev_name *d)
  52 {
  53         struct bch_ioctl_dev_usage_v2 *u = bchu_dev_usage(fs, d->idx);
  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 (unsigned i = 0; i < u->nr_data_types; i++)
  81                 dev_usage_type_to_text(out, u, i);
  82
  83         prt_str(out, "capacity:");
  84         prt_tab(out);
  85
  86         prt_units_u64(out, (u->nr_buckets * u->bucket_size) << 9);
  87         prt_tab_rjust(out);
  88         prt_printf(out, "%llu", u->nr_buckets);
  89         prt_tab_rjust(out);
  90
  91         printbuf_indent_sub(out, 2);
  92
  93         prt_newline(out);
  94         free(u);
  95 }
  96
  97 static int dev_by_label_cmp(const void *_l, const void *_r)
  98 {
  99         const struct dev_name *l = _l, *r = _r;
 100
 101         return  (l->label && r->label
 102                  ? strcmp(l->label, r->label) : 0) ?:
 103                 (l->dev && r->dev
 104                  ? strcmp(l->dev, r->dev) : 0) ?:
 105                 cmp_int(l->idx, r->idx);
 106 }
 107
 108 static struct dev_name *dev_idx_to_name(dev_names *dev_names, unsigned idx)
 109 {
 110         struct dev_name *dev;
 111
 112         darray_for_each(*dev_names, dev)
 113                 if (dev->idx == idx)
 114                         return dev;
 115
 116         return NULL;
 117 }
 118
 119 static void replicas_usage_to_text(struct printbuf *out,
 120                                    const struct bch_replicas_usage *r,
 121                                    dev_names *dev_names)
 122 {
 123         if (!r->sectors)
 124                 return;
 125
 126         char devs[4096], *d = devs;
 127         *d++ = '[';
 128
 129         unsigned durability = 0;
 130
 131         for (unsigned i = 0; i < r->r.nr_devs; i++) {
 132                 unsigned dev_idx = r->r.devs[i];
 133                 struct dev_name *dev = dev_idx_to_name(dev_names, dev_idx);
 134
 135                 durability += dev->durability;
 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, "%u ", durability);
 154         prt_tab(out);
 155
 156         prt_printf(out, "%s ", devs);
 157         prt_tab(out);
 158
 159         prt_units_u64(out, r->sectors << 9);
 160         prt_tab_rjust(out);
 161         prt_newline(out);
 162 }
 163
 164 #define for_each_usage_replica(_u, _r)                                  \
 165         for (_r = (_u)->replicas;                                       \
 166              _r != (void *) (_u)->replicas + (_u)->replica_entries_bytes;\
 167              _r = replicas_usage_next(_r),                              \
 168              BUG_ON((void *) _r > (void *) (_u)->replicas + (_u)->replica_entries_bytes))
 169
 170 static void fs_usage_to_text(struct printbuf *out, const char *path)
 171 {
 172         unsigned i;
 173
 174         struct bchfs_handle fs = bcache_fs_open(path);
 175
 176         struct dev_name *dev;
 177         dev_names dev_names = bchu_fs_get_devices(fs);
 178
 179         struct bch_ioctl_fs_usage *u = bchu_fs_usage(fs);
 180
 181         prt_str(out, "Filesystem: ");
 182         pr_uuid(out, fs.uuid.b);
 183         prt_newline(out);
 184
 185         printbuf_tabstops_reset(out);
 186         printbuf_tabstop_push(out, 20);
 187         printbuf_tabstop_push(out, 16);
 188
 189         prt_str(out, "Size:");
 190         prt_tab(out);
 191         prt_units_u64(out, u->capacity << 9);
 192         prt_tab_rjust(out);
 193         prt_newline(out);
 194
 195         prt_str(out, "Used:");
 196         prt_tab(out);
 197         prt_units_u64(out, u->used << 9);
 198         prt_tab_rjust(out);
 199         prt_newline(out);
 200
 201         prt_str(out, "Online reserved:");
 202         prt_tab(out);
 203         prt_units_u64(out, u->online_reserved << 9);
 204         prt_tab_rjust(out);
 205         prt_newline(out);
 206
 207         prt_newline(out);
 208
 209         printbuf_tabstops_reset(out);
 210
 211         printbuf_tabstop_push(out, 16);
 212         prt_str(out, "Data type");
 213         prt_tab(out);
 214
 215         printbuf_tabstop_push(out, 16);
 216         prt_str(out, "Required/total");
 217         prt_tab(out);
 218
 219         printbuf_tabstop_push(out, 14);
 220         prt_str(out, "Durability");
 221         prt_tab(out);
 222
 223         printbuf_tabstop_push(out, 14);
 224         prt_str(out, "Devices");
 225         prt_newline(out);
 226
 227         printbuf_tabstop_push(out, 14);
 228
 229         for (i = 0; i < BCH_REPLICAS_MAX; i++) {
 230                 if (!u->persistent_reserved[i])
 231                         continue;
 232
 233                 prt_str(out, "reserved:");
 234                 prt_tab(out);
 235                 prt_printf(out, "%u/%u ", 1, i);
 236                 prt_tab(out);
 237                 prt_str(out, "[] ");
 238                 prt_units_u64(out, u->persistent_reserved[i] << 9);
 239                 prt_tab_rjust(out);
 240                 prt_newline(out);
 241         }
 242
 243         struct bch_replicas_usage *r;
 244
 245         for_each_usage_replica(u, r)
 246                 if (r->r.data_type < BCH_DATA_user)
 247                         replicas_usage_to_text(out, r, &dev_names);
 248
 249         for_each_usage_replica(u, r)
 250                 if (r->r.data_type == BCH_DATA_user &&
 251                     r->r.nr_required <= 1)
 252                         replicas_usage_to_text(out, r, &dev_names);
 253
 254         for_each_usage_replica(u, r)
 255                 if (r->r.data_type == BCH_DATA_user &&
 256                     r->r.nr_required > 1)
 257                         replicas_usage_to_text(out, r, &dev_names);
 258
 259         for_each_usage_replica(u, r)
 260                 if (r->r.data_type > BCH_DATA_user)
 261                         replicas_usage_to_text(out, r, &dev_names);
 262
 263         free(u);
 264
 265         sort(dev_names.data, dev_names.nr,
 266              sizeof(dev_names.data[0]), dev_by_label_cmp, NULL);
 267
 268         printbuf_tabstops_reset(out);
 269         printbuf_tabstop_push(out, 16);
 270         printbuf_tabstop_push(out, 20);
 271         printbuf_tabstop_push(out, 16);
 272         printbuf_tabstop_push(out, 14);
 273
 274         darray_for_each(dev_names, dev)
 275                 dev_usage_to_text(out, fs, dev);
 276
 277         darray_for_each(dev_names, dev) {
 278                 free(dev->dev);
 279                 free(dev->label);
 280         }
 281         darray_exit(&dev_names);
 282
 283         bcache_fs_close(fs);
 284 }
 285
 286 static void fs_usage_usage(void)
 287 {
 288         puts("bcachefs fs usage - display detailed filesystem usage\n"
 289              "Usage: bcachefs fs usage [OPTION]... <mountpoint>\n"
 290              "\n"
 291              "Options:\n"
 292              "  -h, --human-readable              Human readable units\n"
 293              "      --help                        Display this help and exit\n"
 294              "Report bugs to <linux-bcachefs@vger.kernel.org>");
 295 }
 296
 297 int cmd_fs_usage(int argc, char *argv[])
 298 {
 299         static const struct option longopts[] = {
 300                 { "help",               no_argument,            NULL, 'H' },
 301                 { NULL }
 302         };
 303         bool human_readable = false;
 304         struct printbuf buf = PRINTBUF;
 305         char *fs;
 306         int opt;
 307
 308         while ((opt = getopt_long(argc, argv, "h",
 309                                   longopts, NULL)) != -1)
 310                 switch (opt) {
 311                 case 'h':
 312                         human_readable = true;
 313                         break;
 314                 case 'H':
 315                         fs_usage_usage();
 316                         exit(EXIT_SUCCESS);
 317                 default:
 318                         fs_usage_usage();
 319                         exit(EXIT_FAILURE);
 320                 }
 321         args_shift(optind);
 322
 323         if (!argc) {
 324                 printbuf_reset(&buf);
 325                 buf.human_readable_units = human_readable;
 326                 fs_usage_to_text(&buf, ".");
 327                 printf("%s", buf.buf);
 328         } else {
 329                 while ((fs = arg_pop())) {
 330                         printbuf_reset(&buf);
 331                         buf.human_readable_units = human_readable;
 332                         fs_usage_to_text(&buf, fs);
 333                         printf("%s", buf.buf);
 334                 }
 335         }
 336
 337         printbuf_exit(&buf);
 338         return 0;
 339 }