diff --git a/.bcachefs_revision b/.bcachefs_revision
index 50bf1805..3d6207b6 100644
--- a/.bcachefs_revision
+++ b/.bcachefs_revision
@@ -1 +1 @@
-036791b0eae3ea21b0a9e0400fc4dafb6487ef14
+8c5a4bd906fa733647775a3a008b3928bfa6e038
diff --git a/libbcachefs/data/write.c b/libbcachefs/data/write.c
index 6fd4ed32..3e56047c 100644
--- a/libbcachefs/data/write.c
+++ b/libbcachefs/data/write.c
@@ -1689,6 +1689,12 @@ CLOSURE_CALLBACK(bch2_write)
 	struct bch_fs *c = op->c;
 	unsigned data_len;
 
+	if (trace_io_write_enabled()) {
+		CLASS(printbuf, buf)();
+		bch2_write_op_to_text(&buf, op);
+		trace_io_write(c, buf.buf);
+	}
+
 	EBUG_ON(op->cl.parent);
 	BUG_ON(!op->nr_replicas);
 	BUG_ON(!op->write_point.v);
diff --git a/libbcachefs/debug/trace.h b/libbcachefs/debug/trace.h
index 9ffe59de..a4ab2a3f 100644
--- a/libbcachefs/debug/trace.h
+++ b/libbcachefs/debug/trace.h
@@ -322,6 +322,11 @@ DEFINE_EVENT(bio, io_read_fail_and_poison,
 	TP_ARGS(bio)
 );
 
+DEFINE_EVENT(fs_str, io_write,
+	TP_PROTO(struct bch_fs *c, const char *str),
+	TP_ARGS(c, str)
+);
+
 /* ec.c */
 
 TRACE_EVENT(stripe_create,