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x86: fix pte allocation in "x86: introduce init_memory_mapping for 32bit"

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The patch "x86: introduce init_memory_mapping for 32bit" does not allocate
enough space for PTEs if the CPU does not implement PSE.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jeremy Fitzhardinge 2008-06-24 17:32:48 -04:00 committed by Ingo Molnar
parent 9f9d489a3e
commit 8207c2570a
1 changed files with 5 additions and 0 deletions
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5
arch/x86/mm/init_32.c
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@ -733,6 +733,11 @@ static void __init find_early_table_space(unsigned long end)
pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT; pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
tables += PAGE_ALIGN(pmds * sizeof(pmd_t)); tables += PAGE_ALIGN(pmds * sizeof(pmd_t));
if (!cpu_has_pse) {
int ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
tables += PAGE_ALIGN(ptes * sizeof(pte_t));
}
/* /*
* RED-PEN putting page tables only on node 0 could * RED-PEN putting page tables only on node 0 could
* cause a hotspot and fill up ZONE_DMA. The page tables * cause a hotspot and fill up ZONE_DMA. The page tables