From: Johannes Berg <johannes@sipsolutions.net>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: pmac_nvram problems
Date: Thu, 18 Aug 2005 15:03:04 +0200 [thread overview]
Message-ID: <1124370184.30888.5.camel@localhost> (raw)
In-Reply-To: <1124341212.8848.78.camel@gaston>
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On Thu, 2005-08-18 at 15:00 +1000, Benjamin Herrenschmidt wrote:
> There used to be cases where we used the nvram stuff before kmalloc()
> was available. I'll check if this is still the case.
Ah, ok. Makes sense. In that case I suppose it must be #ifdef'ed for the
module case.
> Well... the driver doesn't expect you to boot a different OS while
> suspended to disk :)
Yeah :) It'd be nice though since except for that I haven't found any
other adverse effects.
> Regarding caching the data in memory, this is done becaues nvram is
> actually a flash on recent machines, and you really want to limit the
> number of write cycles to it.
Ok, makes sense. When I get some time I'll look into converting and
implementing reloading for that case, but now that I compile as a module
and unload it, it hardly is a priority.
Thanks for your answers,
johannes
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next prev parent reply other threads:[~2005-08-18 13:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-17 11:16 pmac_nvram problems Johannes Berg
2005-08-18 5:00 ` Benjamin Herrenschmidt
2005-08-18 13:03 ` Johannes Berg [this message]
2005-08-18 21:40 ` Benjamin Herrenschmidt
2005-08-19 10:55 ` Johannes Berg
2005-08-20 0:03 ` Benjamin Herrenschmidt
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