On Sat, Jun 18, 2016 at 04:56:16PM -0400, Brian Gerst 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. > > Signed-off-by: Brian Gerst <brge...@gmail.com>
You can also remove the STACK_FRAME_NON_STANDARD annotation for __schedule() in kernel/sched/core.c since it no longer produces an objtool warning. Otherwise it looks great: Reviewed-by: Josh Poimboeuf <jpoim...@redhat.com> -- Josh
