We changed loops with memset in the 5e9ebbd87a99 commit (x86/boot: Micro-optimize reset_early_page_tables()). The base for size of memset was size of pud_p/pmd_p, but the they are actually represented as pointers, although they have the same sizes.
Signed-off-by: Alexander Kuleshov <[email protected]> --- based on x86/tip/boot arch/x86/kernel/head64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 35843ca..7793a17 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -75,7 +75,7 @@ again: } pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++]; - memset(pud_p, 0, sizeof(pud_p) * PTRS_PER_PUD); + memset(pud_p, 0, sizeof(*pud_p) * PTRS_PER_PUD); *pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE; } pud_p += pud_index(address); @@ -90,7 +90,7 @@ again: } pmd_p = (pmdval_t *)early_dynamic_pgts[next_early_pgt++]; - memset(pmd_p, 0, sizeof(pmd_p) * PTRS_PER_PMD); + memset(pmd_p, 0, sizeof(*pmd_p) * PTRS_PER_PMD); *pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE; } pmd = (physaddr & PMD_MASK) + early_pmd_flags; -- 2.7.0.25.gfc10eb5
