Messages in this thread | | | Date | Mon, 13 Dec 2004 23:31:53 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.32-6 |
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* Steven Rostedt <rostedt@goodmis.org> wrote:
> [RFC] Has there been previously any thought of adding priority > inheriting wait queues. [...]
this will make sense at a certain point.
> [...] it would really help to solve the problem of a high priority > process waiting for an interrupt that can be starved by other high > priority processes.
the primary use i think would be kernel-internal task <-> task waitqueues such as the futex queues, to transport the effects of RT priorities across waitqueues as well. IRQ related waitqueues are a nice 'side-effect'.
another next step would be to transport PI effects to userspace code, for user-controlled synchronization objects such as futexes or e.g. SysV semaphores.
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