On 11/01/2013 10:24 AM, Peter Zijlstra wrote: > On Fri, Nov 01, 2013 at 01:44:24PM +0000, Mel Gorman wrote: >> Ok, I see your point now but still wonder if this is too specialised >> for what we are trying to do. Could it have been done with a read-write >> semaphore with the global stop_cpus taking it for write and stop_two_cpus >> taking it for read? > > rwsem for read is still global state.. That said it should be fairly > easy to use lglock for this.
I'll rewrite the patch using lglocks, that should make things more readable. -- All rights reversed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/