o Newly forked child processes return directly to user mode rather than
return up through the fork() syscall tree. This eliminates the kernel
stack copy at fork time and simplifies certain other internal
operations.
It is also needed to support the removal of the UPAGES. (The idea for
this originally came from NetBSD, but we did it for different reasons.)
What's it? Can linux be improved too? Or has it already been improved?
---
Meelis Roos (mroos@tartu.cyber.ee)
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