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authored <ed@FreeBSD.org>2013-06-29 20:13:39 +0000
committered <ed@FreeBSD.org>2013-06-29 20:13:39 +0000
commit3764c06cce8e6850a99963792d57f39f931683f0 (patch)
treed4ba282ffdb6e443e36a2de22e0d468a3194aacc /sbin/hastd/refcnt.h
parent79db6ff6073aac327fcdea373c900393db93a5e8 (diff)
downloadFreeBSD-src-3764c06cce8e6850a99963792d57f39f931683f0.zip
FreeBSD-src-3764c06cce8e6850a99963792d57f39f931683f0.tar.gz
Don't let hastd use C11 atomics.
Due to possible concerns about the stability of C11 atomics, use our existing atomics API instead. Requested by: pjd
Diffstat (limited to 'sbin/hastd/refcnt.h')
-rw-r--r--sbin/hastd/refcnt.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/sbin/hastd/refcnt.h b/sbin/hastd/refcnt.h
index 5e3fb34..1246043 100644
--- a/sbin/hastd/refcnt.h
+++ b/sbin/hastd/refcnt.h
@@ -32,24 +32,24 @@
#ifndef __REFCNT_H__
#define __REFCNT_H__
-#include <stdatomic.h>
+#include <machine/atomic.h>
#include "pjdlog.h"
-typedef atomic_uint refcnt_t;
+typedef unsigned int refcnt_t;
static __inline void
refcnt_init(refcnt_t *count, unsigned int v)
{
- atomic_init(count, v);
+ *count = v;
}
static __inline void
refcnt_acquire(refcnt_t *count)
{
- atomic_fetch_add_explicit(count, 1, memory_order_acquire);
+ atomic_add_acq_int(count, 1);
}
static __inline unsigned int
@@ -58,7 +58,7 @@ refcnt_release(refcnt_t *count)
unsigned int old;
/* XXX: Should this have a rel membar? */
- old = atomic_fetch_sub(count, 1);
+ old = atomic_fetchadd_int(count, -1);
PJDLOG_ASSERT(old > 0);
return (old - 1);
}
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