Macro to simplify zeroing DPCPU variables.

Sponsored by: FreeBSD Foundation MFC after: 3 days
2010-07-13 08:05:48 +00:00 · 2010-07-13 08:05:48 +00:00 · aac762c267
commit aac762c267
parent 985147dec6
1 changed files with 9 additions and 0 deletions
--- a/sys/sys/pcpu.h
+++ b/sys/sys/pcpu.h
@ -133,6 +133,15 @@ extern uintptr_t dpcpu_off[];
 	sum;								\
 })

+#define	DPCPU_ZERO(n) do {						\
+	u_int _i;							\
+									\
+	CPU_FOREACH(_i) {						\
+		bzero(DPCPU_ID_PTR(_i, n),				\
+		    sizeof(__typeof(DPCPU_PTR(n))));			\
+	}								\
+} while(0)
+
 /* 
 * XXXUPS remove as soon as we have per cpu variable
 * linker sets and can define rm_queue in _rm_lock.h