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bcachefs: bch2_fs_accounting_to_text()

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Helper to show raw accounting in sysfs, mainly for debugging.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-02-24 19:58:07 -05:00
parent 91f44781d5
commit f93bb76ba2
3 changed files with 32 additions and 0 deletions
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26
fs/bcachefs/disk_accounting.c
View File

@ -308,6 +308,32 @@ int bch2_fs_replicas_usage_read(struct bch_fs *c, darray_char *usage)
return ret;
}
void bch2_fs_accounting_to_text(struct printbuf *out, struct bch_fs *c)
{
struct bch_accounting_mem *acc = &c->accounting[0];
percpu_down_read(&c->mark_lock);
out->atomic++;
eytzinger0_for_each(i, acc->k.nr) {
struct disk_accounting_pos acc_k;
bpos_to_disk_accounting_pos(&acc_k, acc->k.data[i].pos);
bch2_accounting_key_to_text(out, &acc_k);
u64 v[BCH_ACCOUNTING_MAX_COUNTERS];
bch2_accounting_mem_read_counters(c, i, v, ARRAY_SIZE(v), false);
prt_str(out, ":");
for (unsigned j = 0; j < acc->k.data[i].nr_counters; j++)
prt_printf(out, " %llu", v[j]);
prt_newline(out);
}
--out->atomic;
percpu_up_read(&c->mark_lock);
}
/* Ensures all counters in @src exist in @dst: */
static int copy_counters(struct bch_accounting_mem *dst,
struct bch_accounting_mem *src)

1
fs/bcachefs/disk_accounting.h
View File

@ -193,6 +193,7 @@ static inline void bch2_accounting_mem_read(struct bch_fs *c, struct bpos p,
}
int bch2_fs_replicas_usage_read(struct bch_fs *, darray_char *);
void bch2_fs_accounting_to_text(struct printbuf *, struct bch_fs *);
int bch2_accounting_gc_done(struct bch_fs *);

5
fs/bcachefs/sysfs.c
View File

@ -203,6 +203,7 @@ read_attribute(disk_groups);
read_attribute(has_data);
read_attribute(alloc_debug);
read_attribute(accounting);
#define x(t, n, ...) read_attribute(t);
BCH_PERSISTENT_COUNTERS()
@ -388,6 +389,9 @@ SHOW(bch2_fs)
if (attr == &sysfs_alloc_debug)
bch2_fs_alloc_debug_to_text(out, c);
if (attr == &sysfs_accounting)
bch2_fs_accounting_to_text(out, c);
return 0;
}
@ -601,6 +605,7 @@ struct attribute *bch2_fs_internal_files[] = {
&sysfs_disk_groups,
&sysfs_alloc_debug,
&sysfs_accounting,
NULL
};