tree 5d852421041b3ccc512d80a96825fe07b5978317
parent d843d75e9e3037056c5a39d9f9affe798763aa8d
author Maxim Dounin <mdounin@mdounin.ru> 1643722168 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1643722168 +0300

Cache: fixed race in ngx_http_file_cache_forced_expire().

During configuration reload two cache managers might exist for a short
time.  If both tried to delete the same cache node, the "ignore long locked
inactive cache entry" alert appeared in logs.  Additionally,
ngx_http_file_cache_forced_expire() might be also called by worker
processes, with similar results.

Fix is to ignore cache nodes being deleted, similarly to how it is
done in ngx_http_file_cache_expire() since 3755:76e3a93821b1.  This
was somehow missed in 7002:ab199f0eb8e8, when ignoring long locked
cache entries was introduced in ngx_http_file_cache_forced_expire().