kiobuf questions

kiobuf questions

[BenHanokh Gabriel]

hi

i'm trying to understand the role of the kiobuf struct in the io
subsystem.

there are 2 fields i failed to see any reference to :
end_io  and
wait_queue 

now, the documentation says that this is a completion callback , but i
never saw anyone using it.

the same goes for the wait_queue, i didn't see any code utilizing it(
except for the kiobuf_wait_for_io() which noone uses )

THX
/gabi
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Re: kiobuf questions

[Stephen C. Tweedie]

Hi,

On Tue, Oct 03, 2000 at 05:37:24PM +0300, BenHanokh Gabriel wrote:
> 
> i'm trying to understand the role of the kiobuf struct in the io
> subsystem.
> 
> there are 2 fields i failed to see any reference to :
> end_io  and
> wait_queue 
> 
> now, the documentation says that this is a completion callback , but i
> never saw anyone using it.

That's because the only user of kiobuf-based IO is, for now,
synchronous.  You need end_io() callbacks and a wait queue to allow
async completion in the future.

Cheers,
 Stephen
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