aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/mm/init_32.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index dda4e83649a..e4e37d4f4c5 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -85,13 +85,20 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd)
static pte_t * __init one_page_table_init(pmd_t *pmd)
{
if (!(pmd_val(*pmd) & _PAGE_PRESENT)) {
- pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ pte_t *page_table = NULL;
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+ page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);
+#endif
+ if (!page_table)
+ page_table =
+ (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
paravirt_alloc_pt(&init_mm, __pa(page_table) >> PAGE_SHIFT);
set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
BUG_ON(page_table != pte_offset_kernel(pmd, 0));
}
-
+
return pte_offset_kernel(pmd, 0);
}