Allocate and free vmalloc areas
Allocate/release a chunk of vmalloc address space: alloc_vm_area reserves a chunk of address space, and makes sure all the pagetables are constructed for that address range - but no pages. free_vm_area releases the address space range. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Ian Pratt <ian.pratt@xensource.com> Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Cc: "Jan Beulich" <JBeulich@novell.com> Cc: "Andi Kleen" <ak@muc.de>
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