io_uring: defer flushing cached reqs
Awhile there are requests in the allocation cache -- use them, only if those ended go for the stashed memory in comp.free_list. As list manipulation are generally heavy and are not good for caches, flush them all or as much as can in one go. Signed-off-by:Pavel Begunkov <asml.silence@gmail.com> [axboe: return success/failure from io_flush_cached_reqs()] Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
c5eef2b9
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