Add a UGAR() macro to simplify the diff's for the Giant pushdown.

svn path=/head/; revision=82609
2001-08-31 00:36:29 +00:00 · 2001-08-31 00:36:29 +00:00 · 55be7f3e8d · 2020-12-20 02:59:44 +00:00
commit 55be7f3e8d
parent 27a6d44d7f
1 changed files with 6 additions and 0 deletions
--- a/sys/sys/mutex.h
+++ b/sys/sys/mutex.h
@ -354,6 +354,12 @@ do {									\
 	if (mtx_owned(&Giant))						\
 		WITNESS_RESTORE(&Giant.mtx_object, Giant)

+#define	UGAR(rval) do {							\
+	int _val = (rval);						\
+	mtx_unlock(&Giant);						\
+	return (_val);							\
+} while (0)
+
 /*
 * The INVARIANTS-enabled mtx_assert() functionality.
 *