Hi Peter and Tejun, On Fri, Sep 06, 2013 at 08:47:45AM -0700, H. Peter Anvin wrote: >Specifically there are a bunch of things which need to be below a certain address (which one varies.) > off-topic If memblock allocator have less fragmentation than old bootmem allocator? Regards, Wanpeng Li >Tejun Heo <tj@xxxxxxxxxx> wrote: >>Hello, Wanpeng. >> >>On Fri, Sep 06, 2013 at 04:58:11PM +0800, Wanpeng Li wrote: >>> What's the root reason memblock alloc from high to low? To reduce >>> fragmentation or ... >> >>Because low memory tends to be more precious, it's just easier to pack >>everything towards the top so that we don't have to worry about which >>zone to use for allocation and fallback logic. >> >>Thanks. > >-- >Sent from my mobile phone. Please pardon brevity and lack of formatting. > >-- >To unsubscribe, send a message with 'unsubscribe linux-mm' in >the body to majordomo@xxxxxxxxx. For more info on Linux MM, >see: http://www.linux-mm.org/ . >Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>