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Date: Sun, 16 Jun 2013 09:14:50 +0800 From: Wanpeng Li <liwanp@...ux.vnet.ibm.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Michal Hocko <mhocko@...e.cz>, David Rientjes <rientjes@...gle.com>, "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, Fengguang Wu <fengguang.wu@...el.com>, Rik van Riel <riel@...hat.com>, Andrew Shewmaker <agshew@...il.com>, Jiri Kosina <jkosina@...e.cz>, Namjae Jeon <linkinjeon@...il.com>, Jan Kara <jack@...e.cz>, Tejun Heo <tj@...nel.org>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, Wanpeng Li <liwanp@...ux.vnet.ibm.com> Subject: [PATCH v2 7/7] 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@...ux.vnet.ibm.com> --- arch/x86/mm/pgtable.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 17fda6a..cb787da 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) -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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