Re: PI patch against 2.6.16-rt9

[Ingo Molnar]

* Esben Nielsen <simlo@xxxxxxxxxx> wrote:

> My girl friend will be angry for me not being to bed yet, but I had to 
> steal time to make this patch. I hope I managed to send it without 
> white-space damage or anything like it.

thanks - this looks fine to me, but i'm still worried about the 
nonatomic chain boosting side-effects that i outlined in the previous 
mail.

the tempting property of your patch is the fundamental reschedulability 
of the boosting itself - and the resulting simplicity of locking. On the 
con side, i dont see how we can detect deadlocks reliably, nor how we 
can avoid 'incorrect boosting' (outlined in the previous mail), if the 
chain gets 'broken'.

	Ingo
-
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/