On Thu, Dec 07, 2006 at 11:47:01AM +0530, Srivatsa Vaddagiri wrote: > - Make it rw-sem
I think rw-sems also were shown to hit deadlocks (recursive read-lock attempt deadlocks when a writer comes between the two read attempts by the same thread). So below suggestion only seems to makes sense .. > - Make it per-cpu mutex, which could be either: > > http://lkml.org/lkml/2006/11/30/110 - Ingo's suggestion > http://lkml.org/lkml/2006/10/26/65 - Gautham's work based on RCU > > In Ingo's suggestion, I really dont know if the task_struct > modifications is a good thing (to support recursive requirements). > Gautham's patches avoid modifications to task_struct, is fast but can > starve writers (who want to bring down/up a CPU). -- Regards, vatsa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
