tree a79ab0cb890351ad8f397e4327b4b59c657ea331
parent 337410c5a4b5ac296cbf44fc579aa666286670b8
author Willy Tarreau <w@1wt.eu> 1641140354 +0100
committer Willy Tarreau <w@1wt.eu> 1641148526 +0100
encoding latin1

MEDIUM: pools: centralize cache eviction in a common function

We currently have two functions to evict cold objects from local caches:
pool_evict_from_local_cache() to evict from a single cache, and
pool_evict_from_local_caches() to evict oldest objects from all caches.

The new function pool_evict_last_items() focuses on scanning oldest
objects from a pool and releasing a predefined number of them, either
to the shared pool or to the system. For now they're evicted one at a
time, but the next step will consist in creating clusters.