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bcachefs: Add btree cache stats to sysfs

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Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-11-19 20:13:30 -05:00 committed by Kent Overstreet
parent e8c851b351
commit d8ebed7d24
3 changed files with 14 additions and 0 deletions
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6
fs/bcachefs/btree_cache.c
View File

@ -1065,3 +1065,9 @@ void bch2_btree_node_to_text(struct printbuf *out, struct bch_fs *c,
stats.floats,
stats.failed);
}
void bch2_btree_cache_to_text(struct printbuf *out, struct bch_fs *c)
{
pr_buf(out, "nr nodes:\t%u\n", c->btree_cache.used);
pr_buf(out, "nr dirty:\t%u\n", atomic_read(&c->btree_cache.dirty));
}

1
fs/bcachefs/btree_cache.h
View File

@ -100,5 +100,6 @@ static inline unsigned btree_blocks(struct bch_fs *c)
void bch2_btree_node_to_text(struct printbuf *, struct bch_fs *,
struct btree *);
void bch2_btree_cache_to_text(struct printbuf *, struct bch_fs *);
#endif /* _BCACHEFS_BTREE_CACHE_H */

7
fs/bcachefs/sysfs.c
View File

@ -165,6 +165,7 @@ read_attribute(journal_debug);
read_attribute(journal_pins);
read_attribute(btree_updates);
read_attribute(dirty_btree_nodes);
read_attribute(btree_cache);
read_attribute(btree_key_cache);
read_attribute(btree_transactions);
read_attribute(stripes_heap);
@ -374,6 +375,11 @@ SHOW(bch2_fs)
return out.pos - buf;
}
if (attr == &sysfs_btree_cache) {
bch2_btree_cache_to_text(&out, c);
return out.pos - buf;
}
if (attr == &sysfs_btree_key_cache) {
bch2_btree_key_cache_to_text(&out, &c->btree_key_cache);
return out.pos - buf;
@ -550,6 +556,7 @@ struct attribute *bch2_fs_internal_files[] = {
&sysfs_journal_pins,
&sysfs_btree_updates,
&sysfs_dirty_btree_nodes,
&sysfs_btree_cache,
&sysfs_btree_key_cache,
&sysfs_btree_transactions,
&sysfs_stripes_heap,