Module Name: src
Committed By: thorpej
Date: Tue Jan 21 04:09:11 UTC 2020
Modified Files:
src/sys/sys: rwlock.h
Log Message:
Update a comment.
To generate a diff of this commit:
cvs rdiff -u -r1.13 -r1.14 src/sys/sys/rwlock.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/sys/rwlock.h
diff -u src/sys/sys/rwlock.h:1.13 src/sys/sys/rwlock.h:1.14
--- src/sys/sys/rwlock.h:1.13 Sun Jan 19 18:34:24 2020
+++ src/sys/sys/rwlock.h Tue Jan 21 04:09:10 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: rwlock.h,v 1.13 2020/01/19 18:34:24 ad Exp $ */
+/* $NetBSD: rwlock.h,v 1.14 2020/01/21 04:09:10 thorpej Exp $ */
/*-
* Copyright (c) 2002, 2006, 2007, 2008, 2019, 2020 The NetBSD Foundation, Inc.
@@ -63,10 +63,10 @@ typedef struct krwlock krwlock_t;
* WRITE_LOCKED bit is clear, then the owner field is actually a count of
* the number of readers. The rw_owner field is laid out like so:
*
- * N 4 3 2 1 0
- * +---------------------------------------------------------+
- * | owner or read count | nodbug | wrlock | wrwant | wait |
- * +---------------------------------------------------------+
+ * N 5 4 3 2 1 0
+ * +------------------------------------------------------------------+
+ * | owner or read count | nodbug | <free> | wrlock | wrwant | wait |
+ * +------------------------------------------------------------------+
*/
#define RW_HAS_WAITERS 0x01UL /* lock has waiters */
#define RW_WRITE_WANTED 0x02UL /* >= 1 waiter is a writer */
