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authorPavel Begunkov <[email protected]>2020-06-15 10:33:13 +0300
committerJens Axboe <[email protected]>2020-06-15 08:51:35 -0600
commit4dd2824d6d5914949b5fe589538bc2622d84c5dd (patch)
tree679decb480c4e352ae5387ce87d0ffdd2395db88 /tools/perf/scripts/python/export-to-sqlite.py
parent67c4d9e693e3bb7fb968af24e3584f821a78ba56 (diff)
io_uring: lazy get task
There will be multiple places where req->task is used, so refcount-pin it lazily with introduced *io_{get,put}_req_task(). We need to always have valid ->task for cancellation reasons, but don't care about pinning it in some cases. That's why it sets req->task in io_req_init() and implements get/put laziness with a flag. This also removes using @current from polling io_arm_poll_handler(), etc., but doesn't change observable behaviour. Signed-off-by: Pavel Begunkov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
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