Date: Sat, 29 Jun 2013 20:13:39 +0000 (UTC) From: Ed Schouten <ed@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r252386 - head/sbin/hastd Message-ID: <201306292013.r5TKDddc097378@svn.freebsd.org>
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Author: ed Date: Sat Jun 29 20:13:39 2013 New Revision: 252386 URL: http://svnweb.freebsd.org/changeset/base/252386 Log: 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 Modified: head/sbin/hastd/refcnt.h Modified: head/sbin/hastd/refcnt.h ============================================================================== --- head/sbin/hastd/refcnt.h Sat Jun 29 19:57:57 2013 (r252385) +++ head/sbin/hastd/refcnt.h Sat Jun 29 20:13:39 2013 (r252386) @@ -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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