io_uring: further simplify do_read error parsing

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First, instead of checking iov_iter_count(iter) for 0 to find out that
all needed bytes were read, just compare returned code against io_size.
It's more reliable and arguably cleaner.

Also, place the half-read case into an else branch and delete an extra
label.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-02-04 13:52:00 +00:00 • committed by Jens Axboe

parent 6713e7a614

commit 1a2cc0ce8d

1 changed files with 8 additions and 9 deletions

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fs/io_uring.c

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