Module Name: src
Committed By: riastradh
Date: Sun Dec 19 10:57:12 UTC 2021
Modified Files:
src/sys/external/bsd/drm2/include/linux: atomic.h
Log Message:
atomic_long_xchg
To generate a diff of this commit:
cvs rdiff -u -r1.29 -r1.30 src/sys/external/bsd/drm2/include/linux/atomic.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/external/bsd/drm2/include/linux/atomic.h
diff -u src/sys/external/bsd/drm2/include/linux/atomic.h:1.29 src/sys/external/bsd/drm2/include/linux/atomic.h:1.30
--- src/sys/external/bsd/drm2/include/linux/atomic.h:1.29 Sun Dec 19 01:46:01 2021
+++ src/sys/external/bsd/drm2/include/linux/atomic.h Sun Dec 19 10:57:12 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: atomic.h,v 1.29 2021/12/19 01:46:01 riastradh Exp $ */
+/* $NetBSD: atomic.h,v 1.30 2021/12/19 10:57:12 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -421,6 +421,18 @@ atomic_long_inc_not_zero(struct atomic_l
}
static inline long
+atomic_long_xchg(struct atomic_long *a, long new)
+{
+ long old;
+
+ smp_mb__before_atomic();
+ old = (long)atomic_swap_ulong(&a->al_v, (unsigned long)new);
+ smp_mb__after_atomic();
+
+ return old;
+}
+
+static inline long
atomic_long_cmpxchg(struct atomic_long *a, long expect, long new)
{
long old;
