On Thu, Sep 26, 2013 at 11:43:02PM +0800, Zhang Yanfei wrote: > > As Yinghai pointed out in another thread, do we need to worry about > > falling back to top-down? > > I've explained to him. Nop, we don't need to worry about that. Because even > the min_pfn_mapped becomes ISA_END_ADDRESS in the second call below, we won't > allocate memory below the kernel because we have limited the allocation above > the kernel. Maybe I misunderstood but wasn't he worrying about there not being enough space above kernel? In that case, it'd automatically fall back to top-down allocation anyway, right? Thanks. -- tejun -- 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>