On 06/14/2017 02:26 PM, Christoph Hellwig wrote:
> On Wed, Jun 14, 2017 at 01:05:27PM -0600, Jens Axboe wrote:
>> Add four flags for the pwritev2(2) system call, allowing an application
>> to give the kernel a hint about what on-media life times can be
>> expected from a given write.
>>
>> The intent is for these values to be relative to each other, no
>> absolute meaning should be attached to these flag names.
>>
>> Define IOCB flags to carry this information over, and finally
>> transform them into the block defined stream values.
> 
> Note that we also have the RWF_NOWAIT flag pending, with which this
> would clash.  Maybe move it to the end of the space.

That's a trivial thing to resolve. Whomever goes last can resolve
that. I can put them at the end if you feel strongly about it, I
personally don't really care.

-- 
Jens Axboe

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