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Poul-Henning Kamp authored
The lock order is lru->exp lock, so that the timer_index can be safely examined while holding only the lru lock, eliminating the need for the separate OC_F_ONLRU flag. The critical trick is that in EXP_Touch() the lru_lock is sufficient: We just move the object around on the lru list, we don't add or delete it. This hopefully reduces lock contention on these locks.
195fa50c
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