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e9ab1a1caf
This makes vmalloc_to_phys() public as there will be another user (KVM in-kernel VFIO acceleration) for it soon. As this new user can be compiled as a module, this exports the symbol. As a little optimization, this changes the helper to call vmalloc_to_pfn() instead of vmalloc_to_page() as the size of the struct page may not be power-of-two aligned which will make gcc use multiply instructions instead of shifts. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>