2 Commits

Author	SHA1	Message	Date
Jens Axboe	9731bc9855	io_uring: impose max limit on apoll cache ... Caches like this tend to grow to the peak size, and then never get any smaller. Impose a max limit on the size, to prevent it from growing too big. A somewhat randomly chosen 512 is the max size we'll allow the cache to get. If a batch of frees come in and would bring it over that, we simply start kfree'ing the surplus. Signed-off-by: Jens Axboe <axboe@kernel.dk>	2022-07-24 18:39:17 -06:00
Jens Axboe	9b797a37c4	io_uring: add abstraction around apoll cache ... In preparation for adding limits, and one more user, abstract out the core bits of the allocation+free cache. Signed-off-by: Jens Axboe <axboe@kernel.dk>	2022-07-24 18:39:17 -06:00