| Date | Tue, 26 May 2020 18:00:35 -0400 | From | Johannes Weiner <> | Subject | 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@kernel.dk>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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