[PATCH 8/9] xen/mmu: use apply_to_page_range_batch() in xen_remap_domain_mfn_range()
From: Jeremy Fitzhardinge <hidden>
Date: 2011-01-24 22:56:21
Also in:
lkml, xen-devel
Subsystem:
the rest, x86 architecture (32-bit and 64-bit), xen hypervisor x86 · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, Juergen Gross
From: Jeremy Fitzhardinge <redacted> Signed-off-by: Jeremy Fitzhardinge <redacted> --- 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
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