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

[H. Peter Anvin]

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


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