equal
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inserted
replaced
1143 * Common functionality for both make_not_entrant and make_zombie |
1143 * Common functionality for both make_not_entrant and make_zombie |
1144 */ |
1144 */ |
1145 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
1145 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
1146 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
1146 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
1147 assert(!is_zombie(), "should not already be a zombie"); |
1147 assert(!is_zombie(), "should not already be a zombie"); |
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1148 |
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1149 if (_state == state) { |
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1150 // Avoid taking the lock if already in required state. |
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1151 // This is safe from races because the state is an end-state, |
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1152 // which the nmethod cannot back out of once entered. |
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1153 // No need for fencing either. |
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1154 return false; |
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1155 } |
1148 |
1156 |
1149 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
1157 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
1150 nmethodLocker nml(this); |
1158 nmethodLocker nml(this); |
1151 methodHandle the_method(method()); |
1159 methodHandle the_method(method()); |
1152 NoSafepointVerifier nsv; |
1160 NoSafepointVerifier nsv; |