From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with ESMTP id B4FF66B00E8 for ; Mon, 24 Jan 2011 17:56:21 -0500 (EST) From: Jeremy Fitzhardinge Subject: [PATCH 8/9] xen/mmu: use apply_to_page_range_batch() in xen_remap_domain_mfn_range() Date: Mon, 24 Jan 2011 14:56:06 -0800 Message-Id: In-Reply-To: References: In-Reply-To: References: Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Haavard Skinnemoen , Linux-MM , Linux Kernel Mailing List , Nick Piggin , Xen-devel , Jeremy Fitzhardinge List-ID: From: Jeremy Fitzhardinge Signed-off-by: Jeremy Fitzhardinge --- arch/x86/xen/mmu.c | 19 ++++++++++++------- 1 files changed, 12 insertions(+), 7 deletions(-) diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 38ba804..25da278 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -2292,14 +2292,19 @@ struct remap_data { struct mmu_update *mmu_update; }; -static int remap_area_mfn_pte_fn(pte_t *ptep, unsigned long addr, void *data) +static int remap_area_mfn_pte_fn(pte_t *ptep, unsigned count, + unsigned long addr, void *data) { struct remap_data *rmd = data; - pte_t pte = pte_mkspecial(pfn_pte(rmd->mfn++, rmd->prot)); - rmd->mmu_update->ptr = arbitrary_virt_to_machine(ptep).maddr; - rmd->mmu_update->val = pte_val_ma(pte); - rmd->mmu_update++; + while (count--) { + pte_t pte = pte_mkspecial(pfn_pte(rmd->mfn++, rmd->prot)); + + rmd->mmu_update->ptr = arbitrary_virt_to_machine(ptep).maddr; + rmd->mmu_update->val = pte_val_ma(pte); + rmd->mmu_update++; + ptep++; + } return 0; } @@ -2328,8 +2333,8 @@ int xen_remap_domain_mfn_range(struct vm_area_struct *vma, range = (unsigned long)batch << PAGE_SHIFT; rmd.mmu_update = mmu_update; - err = apply_to_page_range(vma->vm_mm, addr, range, - remap_area_mfn_pte_fn, &rmd); + err = apply_to_page_range_batch(vma->vm_mm, addr, range, + remap_area_mfn_pte_fn, &rmd); if (err) goto out; -- 1.7.3.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org