Re: [RFC] vmstat: Avoid waking up idle-cpu to service shepherd work
From: Viresh Kumar
Date: Sat Mar 28 2015 - 00:28:43 EST
On 27 March 2015 at 17:32, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> What's not clear to me is why that thing is allocated at all, AFAICT
> something like:
>
> static DEFINE_PER_CPU(struct tvec_base, tvec_bases);
>
> Should do the right thing and be much simpler.
Does this comment from timers.c answers your query ?
/*
* This is for the boot CPU - we use compile-time
* static initialisation because per-cpu memory isn't
* ready yet and because the memory allocators are not
* initialised either.
*/
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