Commit 574977a2 authored Jul 01, 2008 by Jeremy Fitzhardinge Committed by Ingo Molnar Jul 08, 2008

x86_64/setup: unconditionally populate the pgd



When allocating a new pud, unconditionally populate the pgd (why did
we bother to create a new pud if we weren't going to populate it?).

This will only happen if the pgd slot was empty, since any existing
pud will be reused.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent aea5f9f8

arch/x86/mm/init_64.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -616,7 +616,6 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, unsigned lon

		last_map_addr = phys_pud_init(pud, __pa(start), __pa(next));
		unmap_low_page(pud);
		if (!after_bootmem)
		pgd_populate(&init_mm, pgd_offset_k(start),
		__va(pud_phys));
		}

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