Messages in this thread |  | | Date | Wed, 04 Dec 2013 08:01:29 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH?] uprobes: change uprobe_write_opcode() to modify the page directly |
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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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