zap_low_mappings -- why?

From: Pavel Machek (pavel@ucw.cz)
Date: Sun Nov 17 2002 - 17:28:08 EST

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Hi!

For S3 wakeup I need identity mappning. There's
acpi_create_identity_pmd(), but its broken: it only creates 4MB worth
on mappings, and you get really *nasty to debug* crashes if you enable
enough options in your kernel.

Question is how to fix it nicely.

I thought about killing zap_low_mappings and then reusing
swapper_pg_dir for that purpose. Is there some problem with that?

Pavel

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