Re: [PATCH, take2] percpu_counter: FBC_BATCH might be too big

[Andrew Morton]

On Sun, 07 Dec 2008 19:30:10 +0100 Eric Dumazet <dada1@xxxxxxxxxxxxx> wrote:

> > 
> > Do
> > 
> > 	$EDITOR  $(grep -l hotcpu_notifier */*.c)
> > 
> > and you'll see lots of code gets it right, and lots of code gets it wrong.
> 
> I see nothing interesting, I must be blind.
> 
> lib/percpu_counter.c: In function 'percpu_counter_startup':
> lib/percpu_counter.c:158: error: 'percpu_counter_hotcpu_callback' undeclared (first use in this function)
> lib/percpu_counter.c:158: error: (Each undeclared identifier is reported only once
> lib/percpu_counter.c:158: error: for each function it appears in.)
> make[1]: *** [lib/percpu_counter.o] Error 1

Perhaps you still had percpu_counter_hotcpu_callback inside #ifdef.

That a look at kernel/workqueue.c, fs/buffer.c.  No #ifdef CONFIG_HOTPLUG_CPU
needed at all.

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