Roger Tsang wrote:No, copy_in_user copies from one userspace address to another in the same process. src and dst are guaranteed to be on the same node.
I'd imagine ssi_rcopy_in_user() would...
1. If both dst & src are local just call local copy_in_user() and we are done.
2. If dst is remote do ssi_rcopy_to_user()
3. If src is remote do ssi_rcopy_from_user()