1 files changed, 22 insertions, 0 deletions
diff --git a/fs/bcachefs/printbuf.c b/fs/bcachefs/printbuf.c
index 5e653eb81d54..accf246c3233 100644
--- a/fs/bcachefs/printbuf.c
+++ b/fs/bcachefs/printbuf.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: LGPL-2.1+
 /* Copyright (C) 2022 Kent Overstreet */
 
+#include <linux/bitmap.h>
 #include <linux/err.h>
 #include <linux/export.h>
 #include <linux/kernel.h>
@@ -423,3 +424,24 @@ void bch2_prt_bitflags(struct printbuf *out,
 		flags ^= BIT_ULL(bit);
 	}
 }
+
+void bch2_prt_bitflags_vector(struct printbuf *out,
+			      const char * const list[],
+			      unsigned long *v, unsigned nr)
+{
+	bool first = true;
+	unsigned i;
+
+	for (i = 0; i < nr; i++)
+		if (!list[i]) {
+			nr = i - 1;
+			break;
+		}
+
+	for_each_set_bit(i, v, nr) {
+		if (!first)
+			bch2_prt_printf(out, ",");
+		first = false;
+		bch2_prt_printf(out, "%s", list[i]);
+	}
+}