Linux kernel: What process does schedule() run in?

Question

When you call a system call such as fork in process X, the kernel is said to be executing in process context. So, fork can be said to be running in pro

Answer 1

schedule() is always running in process context. The special part about it is that it can change which process context is current - but it does always have a process context. Prior to the call to context_switch() it runs in the context of the process to be swapped out, and after it runs in the process swapped in.

The Linux kernel does not have a dedicated "swapper" task (there is an idle task, which is always runnable in case nothing else is eligible to run).