Re: SMP syncronization on AMD processors (broken?)

From: Andi Kleen (ak_at_suse.de)
Date: 10/11/05

  • Next message: Mikulas Patocka: "Re: [PATCH] Use of getblk differs between locations" 
    To: Andrew Morton <akpm@osdl.org>
Date:	Tue, 11 Oct 2005 03:20:27 +0200

    On Tuesday 11 October 2005 02:59, Andrew Morton wrote:

    > > I'm not advocating for changing spinlock implementation, it's just a
    > > thought...
    >
    > It would make sense in these cases if there was some primitive which we
    > could call which says "hey, I expect+want another CPU to grab this lock in
    > preference to this CPU".

    I just don't know how to implement such a primitive given the guarantees
    of the x86 architecture. It might be possible to do something that
    works on specific CPUs, but that will likely break later.

    -Andi
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  • Next message: Mikulas Patocka: "Re: [PATCH] Use of getblk differs between locations"

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