bcachefs: count_event()

Small helper for event counters.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/alloc_background.c

@@ -1674,7 +1674,7 @@ static int bch2_discard_one_bucket(struct btree_trans *trans,
 	if (ret)
 		goto out;
 
-	this_cpu_inc(c->counters[BCH_COUNTER_bucket_discard]);
+	count_event(c, bucket_discard);
 	(*discarded)++;
 out:
 	(*seen)++;

fs/bcachefs/bcachefs.h

@@ -223,9 +223,11 @@
 
 #define race_fault(...)			dynamic_fault("bcachefs:race")
 
+#define count_event(_c, _name)	this_cpu_inc((_c)->counters[BCH_COUNTER_##_name])
+
 #define trace_and_count(_c, _name, ...)					\
 do {									\
-	this_cpu_inc((_c)->counters[BCH_COUNTER_##_name]);		\
+	count_event(_c, _name);						\
 	trace_##_name(__VA_ARGS__);					\
 } while (0)
 

fs/bcachefs/data_update.c

@@ -321,7 +321,7 @@ static int __bch2_data_update_index_update(struct btree_trans *trans,
 				     &m->stats->sectors_raced);
 		}
 
-		this_cpu_inc(c->counters[BCH_COUNTER_move_extent_fail]);
+		count_event(c, move_extent_fail);
 
 		bch2_btree_iter_advance(&iter);
 		goto next;

fs/bcachefs/move.c

@@ -349,7 +349,8 @@ int bch2_move_extent(struct moving_context *ctxt,
 	    bch2_err_matches(ret, BCH_ERR_transaction_restart))
 		return ret;
 
-	this_cpu_inc(c->counters[BCH_COUNTER_move_extent_start_fail]);
+	count_event(c, move_extent_start_fail);
+
 	if (trace_move_extent_start_fail_enabled()) {
 		struct printbuf buf = PRINTBUF;