Update bcachefs sources to 6406e05835 bcachefs: Nocow support

1 files changed, 16 insertions, 0 deletions

diff --git a/libbcachefs/nocow_locking.c b/libbcachefs/nocow_locking.c
new file mode 100644
index 00000000..54e86697
--- /dev/null
+++ b/libbcachefs/nocow_locking.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bcachefs.h"
+#include "nocow_locking.h"
+#include "util.h"
+
+void __bch2_bucket_nocow_lock(struct bucket_nocow_lock_table *t,
+			      struct bpos bucket, int flags)
+{
+	struct bch_fs *c = container_of(t, struct bch_fs, nocow_locks);
+	two_state_lock_t *l = bucket_nocow_lock(t, bucket);
+	u64 start_time = local_clock();
+
+	bch2_two_state_lock(l, flags & BUCKET_NOCOW_LOCK_UPDATE);
+	bch2_time_stats_update(&c->times[BCH_TIME_nocow_lock_contended], start_time);
+}