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Subject[PATCH] Remove initialization of page_table in one_page_table_init()
Only judge if (!page_table) when CONFIG_DEBUG_PAGEALLOC or CONFIG_KMEMCHECK
are defined, then we don't need to set init value for page_table.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
---
arch/x86/mm/init_32.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 3cd7711..55da09b 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -108,13 +108,13 @@ 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 = NULL;
+ pte_t *page_table;

if (after_bootmem) {
#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KMEMCHECK)
page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);
-#endif
if (!page_table)
+#endif
page_table =
(pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
} else
--
1.5.5.3



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