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#include <stdio.h>
#include <sys/ioctl.h>
#include <uuid/uuid.h>
#include "ccan/darray/darray.h"
#include "linux/sort.h"
#include "libbcachefs/bcachefs_ioctl.h"
#include "libbcachefs/opts.h"
#include "cmds.h"
#include "libbcachefs.h"
static void print_dev_usage(struct bch_ioctl_dev_usage *d, unsigned idx,
const char *label, enum units units)
{
char *name = NULL;
u64 available = d->nr_buckets;
unsigned i;
printf("\n");
printf_pad(20, "%s (device %u):", label, idx);
name = !d->dev ? strdup("(offline)")
: dev_to_path(d->dev)
?: strdup("(device not found)");
printf("%24s%12s\n", name, bch2_dev_state[d->state]);
free(name);
printf("%-20s%12s%12s%12s\n",
"", "data", "buckets", "fragmented");
for (i = BCH_DATA_SB; i < BCH_DATA_NR; i++) {
u64 frag = max((s64) d->buckets[i] * d->bucket_size -
(s64) d->sectors[i], 0LL);
printf_pad(20, " %s:", bch2_data_types[i]);
printf("%12s%12llu%12s\n",
pr_units(d->sectors[i], units),
d->buckets[i],
pr_units(frag, units));
if (i != BCH_DATA_CACHED)
available -= d->buckets[i];
}
printf_pad(20, " available:");
printf("%12s%12llu\n",
pr_units(available * d->bucket_size, units),
available);
printf_pad(20, " capacity:");
printf("%12s%12llu\n",
pr_units(d->nr_buckets * d->bucket_size, units),
d->nr_buckets);
}
struct dev_by_label {
unsigned idx;
char *label;
};
static int dev_by_label_cmp(const void *_l, const void *_r)
{
const struct dev_by_label *l = _l, *r = _r;
return strcmp(l->label, r->label);
}
static void print_fs_usage(const char *path, enum units units)
{
unsigned i, j;
char uuid[40];
struct bchfs_handle fs = bcache_fs_open(path);
struct bch_ioctl_usage *u = bchu_usage(fs);
uuid_unparse(fs.uuid.b, uuid);
printf("Filesystem %s:\n", uuid);
printf("%-20s%12s\n", "Size:", pr_units(u->fs.capacity, units));
printf("%-20s%12s\n", "Used:", pr_units(u->fs.used, units));
printf("%-20s%12s%12s%12s%12s\n",
"By replicas:", "1x", "2x", "3x", "4x");
for (j = BCH_DATA_SB; j < BCH_DATA_NR; j++) {
printf_pad(20, " %s:", bch2_data_types[j]);
for (i = 0; i < BCH_REPLICAS_MAX; i++)
printf("%12s", pr_units(u->fs.sectors[j][i], units));
printf("\n");
}
printf_pad(20, " %s:", "reserved");
for (i = 0; i < BCH_REPLICAS_MAX; i++)
printf("%12s", pr_units(u->fs.persistent_reserved[i], units));
printf("\n");
printf("%-20s%12s\n", " online reserved:", pr_units(u->fs.online_reserved, units));
darray(struct dev_by_label) devs_by_label;
darray_init(devs_by_label);
for (i = 0; i < u->nr_devices; i++) {
struct bch_ioctl_dev_usage *d = u->devs + i;
if (!d->alive)
continue;
char *label_attr = mprintf("dev-%u/label", i);
char *label = read_file_str(fs.sysfs_fd, label_attr);
free(label_attr);
darray_append(devs_by_label,
(struct dev_by_label) { i, label });
}
sort(&darray_item(devs_by_label, 0), darray_size(devs_by_label),
sizeof(darray_item(devs_by_label, 0)), dev_by_label_cmp, NULL);
struct dev_by_label *d;
darray_foreach(d, devs_by_label)
print_dev_usage(u->devs + d->idx, d->idx, d->label, units);
darray_foreach(d, devs_by_label)
free(d->label);
darray_free(devs_by_label);
free(u);
bcache_fs_close(fs);
}
int cmd_fs_usage(int argc, char *argv[])
{
enum units units = BYTES;
char *fs;
int opt;
while ((opt = getopt(argc, argv, "h")) != -1)
switch (opt) {
case 'h':
units = HUMAN_READABLE;
break;
}
args_shift(optind);
if (!argc) {
print_fs_usage(".", units);
} else {
while ((fs = arg_pop()))
print_fs_usage(fs, units);
}
return 0;
}
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