Messages in this thread | | | Date | Tue, 3 Mar 2009 18:04:39 +0900 (JST) | Subject | Re: [RFC][PATCH] remove rq->lock from cpuacct cgroup (Was Re: [PATCH] cpuacct: add a branch prediction | From | "KAMEZAWA Hiroyuki" <> |
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Peter Zijlstra wrote: > On Tue, 2009-03-03 at 08:42 +0900, KAMEZAWA Hiroyuki wrote: > >> > Furthermore, if you want something like schedule_work_on() for each >> cpu, >> > there's schedule_on_each_cpu(). >> > >> It can't pass arguments...Maybe I should use rq->lock here to reset >> other cpu's value. > > Why bother with serializing the reset code at all? > I don't think reset v.s. read is problem but reset v.s. increment (read-modify-write) can't be ?
> But there's always smp_call_function() I suppose. >
Hmm, I'll find some simpler way.
Thanks, -Kame
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