On Sat, May 21, 2016 at 9:04 AM, Brian Gerst <brge...@gmail.com> wrote: > Move the low-level context switch code to an out-of-line asm stub instead of > using complex inline asm. This allows constructing a new stack frame for the > child process to make it seamlessly flow to ret_from_fork without an extra > test and branch in __switch_to(). It also improves code generation for > __schedule() by using the C calling convention instead of clobbering all > registers.
Just a heads up: I'm writing some code that conflicts with this patch. The conflict will be easy to resolve, and, if this patch beats mine to -tip, I'll rebase. --Andy