Messages in this thread |  | | | Date | Wed, 11 Apr 2007 00:17:17 -0700 | | From | Andrew Morton <> | | Subject | Re: [PATCH 6/13] maps#2: Move the page walker code to lib/ |
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On Wed, 11 Apr 2007 16:35:44 +1000 Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> Matt Mackall wrote: > > Move the page walker code to lib/ > > > > This lets it get shared outside of proc/ and linked in only when > > needed. > > Still should go into mm/
spose so.
> If it had, you might have also noticed your pagetable walking code > is completely different from how everyone else does it, and fixed > that too.
Different in what way?
> BTW. Is it the case that unused and unexported symbols don't get > pruned by the linker except inside lib/?
If they're static and unreferenced then the linker will remove them. Of course, usually humans remove these because they generate warnings, unless special-things happen. We deliberately do special-things with register_cpu_notifier() so the notifier-block and the handler go away if !CONFIG_HOTPLUG_CPU.
If the functions are non-static then yes, I expect we end up with them in vmlinux. There are tricks we can play with -ffunction-sections to fix that, but we don't. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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