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3 Commits

Author SHA1 Message Date
Jens Axboe c92fcfc2ba io_uring: avoid indirect function calls for the hottest task_work 
We use task_work for a variety of reasons, but doing completions or
triggering rety after poll are by far the hottest two. Use the indirect
funtion call wrappers to avoid the indirect function call if
CONFIG_RETPOLINE is set.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2023-06-02 08:55:37 -06:00
Pavel Begunkov 47b4c68660 io_uring/rw: don't lose partial IO result on fail 
A partially done read/write may end up in io_req_complete_failed() and
loose the result, make sure we return the number of bytes processed.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/05e0879c226bcd53b441bf92868eadd4bf04e2fc.1663668091.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2022-09-21 13:15:02 -06:00
Jens Axboe f3b44f92e5 io_uring: move read/write related opcodes to its own file 
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2022-07-24 18:39:12 -06:00