Messages in this thread | | | Date | Tue, 03 Dec 2013 12:21:32 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH?] uprobes: change uprobe_write_opcode() to modify the page directly |
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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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