Chris Wright wrote: > Add a new mm function generic_page_range() which applies a given > function to every pte in a given virtual address range in a given mm > structure. This is a generic alternative to cut-and-pasting the Linux > idiomatic pagetable walking code in every place that a sequence of > PTEs must be accessed. > > Although this interface is intended to be useful in a wide range of > situations, it is currently used specifically by several Xen > subsystems, for example: to ensure that pagetables have been allocated > for a virtual address range, and to construct batched special > pagetable update requests to map I/O memory (in ioremap()). > This interface is great, and highly useful. But it doesn't seem to be able to work on native hardware, as it doesn't support large pages. Zach
