Messages in this thread | | | Subject | Re: [PATCH RFC 3/4] x86/pti: don't mark the user PGD with _PAGE_NX. | From | Dave Hansen <> | Date | Mon, 8 Jan 2018 09:23:49 -0800 |
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On 01/08/2018 09:17 AM, Willy Tarreau wrote: >> I think the prctl() should apply to an entire process, not to a thread. > > As I mentionned in another mail, I didn't know how to do it, even less > how to do it fast enough so that we didn't add more cycles to the syscall > code.
You can _implement_ it with a task thread if you want. Just spray it across all threads at the prctl()-time instead of a single thread. It'll take a wee bit of locking.
I just don't think the API should apply to a single thread.
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