On Thu, 6 Feb 2014, Joe Perches wrote: > > If they absolutely require local memory to > > currnet's cpu node then that would make sense, > > I presumed THISNODE would be used only with NORETRY >
Unfortunately, that would avoid attempting to defragment or reclaim remotely for the order-3 allocation and only allocate remotely for order-0. So we have to make a decision here what is more important: allocating high-order memory or local memory to current's cpu at this given time? The policy of transparent hugepages, for example, is always to allocate order-9 memory remotely instead of falling back to allocating a smallpage locally. The original code never cared about local vs remote memory, so I don't think there's any restriction to allocating remotely. I also don't know many allocators that do __GFP_THISNODE and care about local memory to current's cpu at this point in time, usually users of that flag are allocating memory that must be local to a specific node (for things like kmem_cache_alloc_node()). -- 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/
