Re: [PATCH 30/32] aio: add delayed cancel support

[Jeff Moyer]

Jeff Moyer <jmoyer@xxxxxxxxxx> writes:

> Christoph Hellwig <hch@xxxxxx> writes:
>
>> The upcoming aio poll support would like to be able to complete the
>> iocb inline from the cancellation context, but that would cause
>> a lock order reversal.  Add support for optionally moving the cancelation
>> outside the context lock to avoid this reversal.
>>
>> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
>
> Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>

Actually, let's move these two defines:

#define AIO_IOCB_DELAYED_CANCEL (1 << 0)
#define AIO_IOCB_CANCELLED      (1 << 1)

to include/linux/aio.h so that drivers outside of fs/aio.c can make use
of them.

-Jeff