[PATCH v5 6/6] mm/pgtable: Don't accumulate addr during pgd prepopulate pmd

[Wanpeng Li]

The old codes accumulate addr to get right pmd, however,
currently pmds are preallocated and transfered as a parameter,
there is unnecessary to accumulate addr variable any more, this
patch remove it.

Reviewed-by: Michal Hocko <mhocko@xxxxxxx>
Reviewed-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
---
 arch/x86/mm/pgtable.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 17fda6a..dfa537a 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -240,7 +240,6 @@ static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
 static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
 {
 	pud_t *pud;
-	unsigned long addr;
 	int i;
 
 	if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
@@ -248,8 +247,7 @@ static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
 
 	pud = pud_offset(pgd, 0);
 
- 	for (addr = i = 0; i < PREALLOCATED_PMDS;
-	     i++, pud++, addr += PUD_SIZE) {
+	for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) {
 		pmd_t *pmd = pmds[i];
 
 		if (i >= KERNEL_PGD_BOUNDARY)
-- 
1.7.5.4

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