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bcachefs: fs_alloc_debug_to_text()

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
2024-04-16 00:11:33 -04:00
parent feb255537d
commit 427e1bb838
1 changed files with 35 additions and 0 deletions
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35
fs/bcachefs/sysfs.c
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@@ -362,6 +362,37 @@ static void bch2_btree_wakeup_all(struct bch_fs *c)
seqmutex_unlock(&c->btree_trans_lock);
}
static void fs_alloc_debug_to_text(struct printbuf *out, struct bch_fs *c)
{
unsigned nr[BCH_DATA_NR];
memset(nr, 0, sizeof(nr));
for (unsigned i = 0; i < ARRAY_SIZE(c->open_buckets); i++)
nr[c->open_buckets[i].data_type]++;
printbuf_tabstop_push(out, 24);
percpu_down_read(&c->mark_lock);
prt_printf(out, "hidden\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.hidden));
prt_printf(out, "btree\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.btree));
prt_printf(out, "data\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.data));
prt_printf(out, "cached\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.cached));
prt_printf(out, "reserved\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.reserved));
prt_printf(out, "online_reserved\t%llu\n", percpu_u64_get(c->online_reserved));
prt_printf(out, "nr_inodes\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.nr_inodes));
percpu_up_read(&c->mark_lock);
prt_newline(out);
prt_printf(out, "freelist_wait\t%s\n", c->freelist_wait.list.first ? "waiting" : "empty");
prt_printf(out, "open buckets allocated\t%i\n", OPEN_BUCKETS_COUNT - c->open_buckets_nr_free);
prt_printf(out, "open buckets total\t%u\n", OPEN_BUCKETS_COUNT);
prt_printf(out, "open_buckets_wait\t%s\n", c->open_buckets_wait.list.first ? "waiting" : "empty");
prt_printf(out, "open_buckets_btree\t%u\n", nr[BCH_DATA_btree]);
prt_printf(out, "open_buckets_user\t%u\n", nr[BCH_DATA_user]);
prt_printf(out, "btree reserve cache\t%u\n", c->btree_reserve_cache_nr);
}
SHOW(bch2_fs)
{
struct bch_fs *c = container_of(kobj, struct bch_fs, kobj);
@@ -444,6 +475,9 @@ SHOW(bch2_fs)
if (attr == &sysfs_disk_groups)
bch2_disk_groups_to_text(out, c);
if (attr == &sysfs_alloc_debug)
fs_alloc_debug_to_text(out, c);
return 0;
}
@@ -650,6 +684,7 @@ struct attribute *bch2_fs_internal_files[] = {
&sysfs_internal_uuid,
&sysfs_disk_groups,
&sysfs_alloc_debug,
NULL
};