[PATCH] i386: initialize end-of-memory variables as early as possible

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Move initialization of all memory end variables to as early as
possible, so that dependent code doesn't need to check whether these
variables have already been set.

Change the range check in kunmap_atomic to actually make use of this
so that the no-mapping-estabished path (under CONFIG_DEBUG_HIGHMEM)
gets used only when the address is inside the lowmem area (and BUG()
otherwise).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>

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Jan Beulich 2006-09-26 10:52:31 +02:00 • committed by Andi Kleen

parent 3b94355c47

commit ba9c231f74

4 changed files with 14 additions and 21 deletions

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8

arch/i386/kernel/setup.c

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5

arch/i386/mm/discontig.c

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2

arch/i386/mm/highmem.c

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20

arch/i386/mm/init.c

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