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

[H. Peter Anvin]

On 12/04/2013 03:11 AM, Oleg Nesterov wrote:
> 
> It is still not clear to me if we can simply change a single byte on
> x86 or not, but at least on powerpc we need to update 4 bytes. Perhaps
> we can conditionalize these pte games later.
> 

But 4 aligned bytes can be written as a single transaction.

	-hpa

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