io_uring: optimise io_import_iovec fixed path

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Delay loading req->rw.{addr,len} in io_import_iovec until it's really
needed, so removing extra loads for the fixed path, which doesn't use
them.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/3cc48dd0c4f1a37c4ce9aab5784281a2d83ad8be.1634314022.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-10-15 17:09:13 +01:00 • committed by Jens Axboe

parent 9882131cd9

commit d1d681b084

1 changed files with 6 additions and 3 deletions

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fs/io_uring.c

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