Re: [PATCH 05/12] mm: support async buffered reads in generic_file_buffered_read()

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On Tue, May 26, 2020 at 01:51:16PM -0600, Jens Axboe wrote:
> Use the async page locking infrastructure, if IOCB_WAITQ is set in the
> passed in iocb. The caller must expect an -EIOCBQUEUED return value,
> which means that IO is started but not done yet. This is similar to how
> O_DIRECT signals the same operation. Once the callback is received by
> the caller for IO completion, the caller must retry the operation.
> 
> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>




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