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Silence compiler warnings
Rearrange a bit of code to ensure that 'mode' in LWLockRelease is obviously always set, which seems a bit cleaner and avoids a compiler warning (thanks to Robert for the suggestion!). Back-patch back to 9.5 where the warning is first seen. Author: Stephen Frost Discussion: https://postgr.es/m/20161129152102.GR13284%40tamriel.snowman.net
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@ -1781,15 +1781,14 @@ LWLockRelease(LWLock *lock)
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* be the latest-acquired lock; so search array backwards.
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*/
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for (i = num_held_lwlocks; --i >= 0;)
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{
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if (lock == held_lwlocks[i].lock)
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{
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mode = held_lwlocks[i].mode;
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break;
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}
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}
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if (i < 0)
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elog(ERROR, "lock %s %d is not held", T_NAME(lock), T_ID(lock));
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mode = held_lwlocks[i].mode;
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num_held_lwlocks--;
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for (; i < num_held_lwlocks; i++)
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held_lwlocks[i] = held_lwlocks[i + 1];
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