[PATCH v2 3/7] swiotlb: Make io_tlb_overflow_buffer a physical address

2012-10-11 Thread Alexander Duyck
This change makes it so that we can avoid virt_to_phys overhead when using the io_tlb_overflow_buffer. My original plan was to completely remove the value and replace it with a constant but I had seen that there were recent patches that stated this couldn't be done until all device drivers that

[PATCH v2 3/7] swiotlb: Make io_tlb_overflow_buffer a physical address

2012-10-11 Thread Alexander Duyck
This change makes it so that we can avoid virt_to_phys overhead when using the io_tlb_overflow_buffer. My original plan was to completely remove the value and replace it with a constant but I had seen that there were recent patches that stated this couldn't be done until all device drivers that