On Tue, Nov 01, 2016 at 11:36:08PM +0100, Jan Kara wrote: > Currently we have two different structures for passing fault information > around - struct vm_fault and struct fault_env. DAX will need more > information in struct vm_fault to handle its faults so the content of > that structure would become event closer to fault_env. Furthermore it > would need to generate struct fault_env to be able to call some of the > generic functions. So at this point I don't think there's much use in > keeping these two structures separate. Just embed into struct vm_fault > all that is needed to use it for both purposes. What about just reference fault_env from vm_fault? We don't always need vm_fault where we nee fault_env. It may save space on stack for some codepaths. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>