Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> writes: >> >> I wish people whose code had stuff like that would take a deep look at it. >> > > The original decision way back when was that huge pages shouldn't mess > up the core VM too much. One way in which we addressed that was to IMHO this decision should really be revisited now. Originally hugetlb was pretty simple, but these days it has most of the functionality of a full VM now. In fact with THP we have 3 different VM systems now, all subtle different with different issues. And with THP hugetlb will be even more widely used than it is today. On the other hand there are strange gaps now, like shared memory doesn't work with THP, but only with hugetlbfs. It would be far better to think about unifying these three VMs. Then with less ifdefs it would also not need hacks like this anymore. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only
