io_uring: fix truncated async read/readv and write/writev retry

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Ensure we keep the truncated value, if we did truncate it. If not, we
might read/write more than the registered buffer size.

Also for retry, ensure that we return the truncated mapped value for
the vectorized versions of the read/write commands.

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

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Jens Axboe 2020-03-11 12:27:04 -06:00

parent bbbdeb4720

commit 3f9d64415f

1 changed files with 5 additions and 2 deletions

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fs/io_uring.c

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