Re: [PATCH 08/15] x86/alternatives: Teach text_poke_bp() to emulate instructions

[Steven Rostedt]

On Tue, 11 Jun 2019 11:22:54 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> What would work would be to:
> 
> 	add breakpoint to first opcode.
> 
> 	call synchronize_tasks();

BTW, that should be "synchronize_rcu_tasks()"

-- Steve

> 
> 	/* All tasks now hitting breakpoint and jumping over affected
> 	code */
> 
> 	update the rest of the instructions.
> 
> 	replace breakpoint with jmp.