Update bcachefs sources to 90a9c61e2b bcachefs: Switch bch2_btree_delete_range() to bch2_trans_run()

1 files changed, 20 insertions, 0 deletions

diff --git a/linux/six.c b/linux/six.c
index fca12087..5b2d92c6 100644
--- a/linux/six.c
+++ b/linux/six.c
@@ -757,3 +757,23 @@ void six_lock_pcpu_alloc(struct six_lock *lock)
 #endif
 }
 EXPORT_SYMBOL_GPL(six_lock_pcpu_alloc);
+
+/*
+ * Returns lock held counts, for both read and intent
+ */
+struct six_lock_count six_lock_counts(struct six_lock *lock)
+{
+	struct six_lock_count ret = { 0, lock->state.intent_lock };
+
+	if (!lock->readers)
+		ret.read += lock->state.read_lock;
+	else {
+		int cpu;
+
+		for_each_possible_cpu(cpu)
+			ret.read += *per_cpu_ptr(lock->readers, cpu);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(six_lock_counts);