Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait

From: Manfred Spraul (
Date: Tue Feb 06 2001 - 16:26:18 EST

Jens Axboe wrote:
> > Several kernel functions need a "dontblock" parameter (or a callback, or
> > a waitqueue address, or a tq_struct pointer).
> We don't even need that, non-blocking is implicitly applied with READA.
READA just returns - I doubt that the aio functions should poll until
there are free entries in the request queue.

The pending aio requests should be "included" into the wait_for_requests
waitqueue (ok, they don't have a process context, thus a wait queue
entry doesn't help, but these requests belong into that wait queue)

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