Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.1

[john cooper]

Ingo Molnar wrote:

>    The new PI code covers all synchronization objects in Linux (on
>    PREEMPT_REALTIME): spinlocks, rwlocks, semaphores and rwsems. 
>    Feedback on the design of this code would be welcome, and patches as
>    well, if you have a better scheme. The code is pretty modular so feel 
>    free to experiment with alternative schemes.

I didn't see closure being performed of a possible blocked-owner
dependency chain, but only promotion of the immediate owner.  It
is possible for a mutex owner to itself be blocked on another mutex
requiring promotion of the latter mutex owner(s).

--
john.cooper@xxxxxxxxxxx
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/