8204301: Make OrderAccess functions available to hpp rather than inline.hpp files
Summary: move orderAccess.inline.hpp into orderAccess.hpp and remove os.hpp inclusion and conditional os::is_MP() for fence on x86 platforms
Reviewed-by: dholmes, hseigel
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#include "precompiled.hpp"
#include "jfr/recorder/checkpoint/types/traceid/jfrTraceIdEpoch.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/orderAccess.hpp"
// Alternating epochs on each rotation allow for concurrent tagging.
// The regular epoch shift happens only during a safepoint.
// The fence is there only for the emergency dump case which happens outside of safepoint.
bool JfrTraceIdEpoch::_epoch_state = false;
void JfrTraceIdEpoch::shift_epoch() {
_epoch_state = !_epoch_state;
if (!SafepointSynchronize::is_at_safepoint()) {
OrderAccess::fence();
}
}