Re: [PATCH?] uprobes: change uprobe_write_opcode() to modify the page directly

H. Peter Anvin
2013-12-03T20:22:42Z

On 12/03/2013 12:01 PM, Oleg Nesterov wrote:
>
>> followed by whatever synchronization necessary to make it globally visible.
>
> Could you explain what this synchronization should actually do ?
>

That is architecture-dependent. On x86 it requires each CPU on which
this code is visible to be IPId, on others it involves complex icache
flushing protocols.

-hpa