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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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