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authorWanpeng Li <liwanp@linux.vnet.ibm.com>2013-07-08 16:00:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-09 10:33:23 -0700
commit73b44ff43c4b3cf517826da03c51948593f88753 (patch)
treefc505d9d3ac4ed335548a4db8635e70cfa5460b7 /arch/x86/mm
parentf49cbdde495f62e1c2d906b16e833cec27de5e59 (diff)
mm/pgtable: don't accumulate addr during pgd prepopulate pmd
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. Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/pgtable.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 17fda6a8b3c..dfa537a03be 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)