Messages in this thread | | | Subject | Re: [PATCH?] uprobes: change uprobe_write_opcode() to modify the page directly | From | "H. Peter Anvin" <> | Date | Tue, 03 Dec 2013 12:43:05 -0800 |
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There is no architecture-independent way to make code globally visible.
Oleg Nesterov <oleg@redhat.com> wrote: >On 12/03, H. Peter Anvin wrote: >> >> 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. > >Hmm. And why this would be better than arch-independent code I sent? > >IOW. Could you please comment the patch I sent? > >Oleg.
-- Sent from my mobile phone. Please pardon brevity and lack of formatting.
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