[Linux-hls-devel] About SCHED_FIFO and SCHED_OTHER...

[Luca A. <luc...@em...>]

Hi guys,

I was thinking about what to do when a user program tries to change an
HLS task to SCHED_FIFO or SCHED_OTHER (see one of my latest mails to the
list, and my last commit, for a more complete description of the
problem).
The current code can act in two ways (configurable through an ifdef):
1) do nothing ---> The task remains an HLS task
2) transform the task in a regular linux task

Both the two previous possibilities have problems... Hence, I had a
third idea:
we can have a "rt scheduler" (similar to the "default scheduler" that we
already have), and move a task to such scheduler when the policy is
changed to SCHED_FIFO or SCHED_RR... In the "default hierarchy" that is
automatically built by the HLS module, rr1 will be the rt scheduler.

What do you think? Can this be a good idea?

If yes, I'll implement this solution in the next days.

			Thanks,
				Luca
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