Messages in this thread Patch in this message | | | From | Yinghai Lu <> | Subject | [PATCH 07/10] x86, xen, mm: Do not need to check if page table is ioremap | Date | Mon, 8 Oct 2012 21:39:15 -0700 |
| |
All page table buf are pre-mapped, and could use _va to access them.
Remove the not needed checking.
Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> --- arch/x86/xen/mmu.c | 8 ++------ 1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 7a769b7..9c0956c 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1412,13 +1412,9 @@ static pte_t __init mask_rw_pte(pte_t *ptep, pte_t pte) /* * If the new pfn is within the range of the newly allocated - * kernel pagetable, and it isn't being mapped into an - * early_ioremap fixmap slot as a freshly allocated page, make sure - * it is RO. + * kernel pagetable, make sure it is RO. */ - if (((!is_early_ioremap_ptep(ptep) && - pfn >= pgt_buf_start && pfn < pgt_buf_top)) || - (is_early_ioremap_ptep(ptep) && pfn != (pgt_buf_end - 1))) + if (pfn >= pgt_buf_start && pfn < pgt_buf_top) pte = pte_wrprotect(pte); return pte; -- 1.7.7
| |