io_uring: retry raw bdev writes if we hit -EOPNOTSUPP

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commit faac996ccd upstream.

For non-blocking issue, we set IOCB_NOWAIT in the kiocb. However, on a
raw block device, this yields an -EOPNOTSUPP return, as non-blocking
writes aren't supported. Turn this -EOPNOTSUPP into -EAGAIN, so we retry
from blocking context with IOCB_NOWAIT cleared.

Cc: stable@vger.kernel.org # 5.5
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jens Axboe 2020-02-07 15:45:22 -07:00 • committed by Greg Kroah-Hartman

parent 15307ec04e

commit 9f1a7b5ddd

1 changed files with 6 additions and 0 deletions

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fs/io_uring.c

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