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bcachefs: Improve btree_reserve_get_fail tracepoint

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Now we include the return code.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-02-01 22:51:51 -05:00
parent db36c1477d
commit adf6360b5d
2 changed files with 10 additions and 5 deletions
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3
fs/bcachefs/btree_update_interior.c
View file

@ -1167,7 +1167,8 @@ bch2_btree_update_start(struct btree_trans *trans, struct btree_path *path,
}
if (ret) {
trace_and_count(c, btree_reserve_get_fail, trans->fn, _RET_IP_, nr_nodes[0] + nr_nodes[1]);
trace_and_count(c, btree_reserve_get_fail, trans->fn,
_RET_IP_, nr_nodes[0] + nr_nodes[1], ret);
goto err;
}

12
fs/bcachefs/trace.h
View file

@ -344,25 +344,29 @@ DEFINE_EVENT(btree_node, btree_node_free,
TRACE_EVENT(btree_reserve_get_fail,
TP_PROTO(const char *trans_fn,
unsigned long caller_ip,
size_t required),
TP_ARGS(trans_fn, caller_ip, required),
size_t required,
int ret),
TP_ARGS(trans_fn, caller_ip, required, ret),
TP_STRUCT__entry(
__array(char, trans_fn, 32 )
__field(unsigned long, caller_ip )
__field(size_t, required )
__array(char, ret, 32 )
),
TP_fast_assign(
strscpy(__entry->trans_fn, trans_fn, sizeof(__entry->trans_fn));
__entry->caller_ip = caller_ip;
__entry->required = required;
strscpy(__entry->ret, bch2_err_str(ret), sizeof(__entry->ret));
),
TP_printk("%s %pS required %zu",
TP_printk("%s %pS required %zu ret %s",
__entry->trans_fn,
(void *) __entry->caller_ip,
__entry->required)
__entry->required,
__entry->ret)
);
DEFINE_EVENT(btree_node, btree_node_compact,