Re: [PATCH 09/23] clocksource: add block notifier

From: Ingo Molnar
Date: Wed Jan 31 2007 - 12:24:39 EST



* Daniel Walker <dwalker@xxxxxxxxxx> wrote:

> > secondly, CLOCKSOURCE_NOTIFY_REGISTER is only used by the core
> > clocksource code and no register-notifier interface is exposed: this
> > makes the whole thing an expensive NOP.
>
> I don't know what you mean when you say "no register-notifier
> interface is exposed" .. The timekeeping code doesn't use this
> notification , but it really should. [...]

what i say is that there's no public interface exposed of this notifier
(and even if there was, there isnt any user of it) and there's only a
single notifier used internally: this means that this thing is an
expensive function call.

Ingo
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