io_uring: cleanup io_import_iovec() of pre-mapped request

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io_rw_prep_async() goes through a dance of clearing req->io, calling
the iovec import, then re-setting req->io. Provide an internal helper
that does the right thing without needing state tweaked to get there.

This enables further cleanups in io_read, io_write, and
io_resubmit_prep(), but that's left for another time.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2020-08-18 13:58:33 -07:00

parent 3b2a4439e0

commit 8452fd0ce6

1 changed files with 14 additions and 14 deletions

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fs/io_uring.c

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