Hi list, I want to "move pages" from one userspace process to another userspace process. The reason to do this is to avoid the overhead of copying. I could ofcourse use shared memory but unfortunately, the data I have is being generated by a third party vendor and I have no control over where it gets generated. All I get is a few pages of data that I now want to "gift" to the other process.
I looked at vmsplice and splice but neither seem to fit the bill. vmsplice can be used only to move into a pipe but not out. splice is apparently currently broken, and even then, the moving is only advisory , it can end up copying if it wants to. I am wondering how I can go about writing something like this? Is this idea just fundamentally impossible in linux or can I somehow implement it? Thanks a lot, MK -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
