Date: Sun, 8 Jul 2018 19:35:29 +0000 (UTC) From: Matt Macy <mmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r336095 - head/sys/sys Message-ID: <201807081935.w68JZTU4058928@repo.freebsd.org>
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Author: mmacy Date: Sun Jul 8 19:35:29 2018 New Revision: 336095 URL: https://svnweb.freebsd.org/changeset/base/336095 Log: critical_{enter, exit}: add missing compiler barrier Reported by: markj Modified: head/sys/sys/systm.h Modified: head/sys/sys/systm.h ============================================================================== --- head/sys/sys/systm.h Sun Jul 8 18:44:42 2018 (r336094) +++ head/sys/sys/systm.h Sun Jul 8 19:35:29 2018 (r336095) @@ -238,6 +238,7 @@ critical_enter(void) td = (struct thread_lite *)curthread; td->td_critnest++; + __compiler_membar(); } static __inline void @@ -248,6 +249,7 @@ critical_exit(void) td = (struct thread_lite *)curthread; KASSERT(td->td_critnest != 0, ("critical_exit: td_critnest == 0")); + __compiler_membar(); td->td_critnest--; __compiler_membar(); if (__predict_false(td->td_owepreempt))
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