Clarifications on fork family syscalls - no longer in process.c?

[stl]

Hello all,

I was working on the 2.6 kernel (2.6.37) and I have just downloaded
the 3.13 Linux release and noticed that sys_fork(), sys_vfork(),
sys_clone() are no longer defined in <arch>/kernel/process.c

I have done some searches into the kernel and through the changelogs
of the different versions, but was not able to conclude where the fork
syscalls are.. and if they still exist..

Has the fork procedure changed?

When the changes have been done (since which version)?

Thanks a lot for the clarifications.

Regards