On Thu, Dec 03, 2015 at 10:44:08AM +0800, Xunlei Pang wrote: > > Nice, will you be looking for similar issues elsewhere in the scheduler > > too? > > Sure :-)
Thanks! > >>> in alloc_rootdomain() ? > >> There is a "memset(rd, 0, sizeof(*rd))" in init_rootdomain(), > >> so I don't think we need to do this in alloc_rootdomain(). > > Ah, right there is. Which also clears the mask for small systems. > > Yeah, maybe we can improve it using alloc_cpumask_var() with > __GFP_ZERO instead of zalloc_cpumask_var() to avoid duplicate > clean for small systems. This isn't a performance critical path, so clarity and correctness are more important than performance. -- 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/
