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

[Linus Torvalds]

On Tue, Dec 3, 2013 at 12:54 PM, Oleg Nesterov <oleg@xxxxxxxxxx> wrote:
>
> So do you think the patch I sent is wrong? Why?

I think the TLB shootdown should guarantee that it's ok on other
CPU's, since that's basically what we do on mmap.

But looking closer at this, I think I see why the old code did what it
did. I think it's breaking shared mmap pages on purpose rather than
dirtying them. Which is probably the right thing to do.

              Linus
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