Re: [PATCH] RT: Checks for cmpxchg in get_task_struct_rcu()

On Mon, 2005-09-26 at 08:25 +0200, Ingo Molnar wrote:
> * Daniel Walker <[email protected]> wrote:
> 
> > Checks for cmpxchg in get_task_struct_rcu() . No race version.
> 
> shouldnt we actually define a global, default cmpxchg() function, based 
> on IRQ-disable - instead of open-coding one?

I was thinking it should be restructures so it just needs an atomic_inc
in this case. Considering that without cmpxchg() you must be on a UP
machine .

Daniel

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• References:
  • [PATCH] RT: Checks for cmpxchg in get_task_struct_rcu()
    • From: Daniel Walker <[email protected]>
  • Re: [PATCH] RT: Checks for cmpxchg in get_task_struct_rcu()
    • From: Nick Piggin <[email protected]>
  • Re: [PATCH] RT: Checks for cmpxchg in get_task_struct_rcu()
    • From: Daniel Walker <[email protected]>
  • Re: [PATCH] RT: Checks for cmpxchg in get_task_struct_rcu()
    • From: Daniel Walker <[email protected]>
  • Re: [PATCH] RT: Checks for cmpxchg in get_task_struct_rcu()
    • From: Ingo Molnar <[email protected]>

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