[PATCH 5/13] maps#2: Add callbacks for each level to page walker

Add callbacks for each level to page walker This allows iterating over all levels of the page tables. Recursion continues to the depth of the lowest supplied callback. This makes the page walker nearly completely generic and should allow it to replace some other hand-rolled page table walkers.

[PATCH 5/13] maps#2: Add callbacks for each level to page walker

Add callbacks for each level to page walker This allows iterating over all levels of the page tables. Recursion continues to the depth of the lowest supplied callback. This makes the page walker nearly completely generic and should allow it to replace some other hand-rolled page table walkers.