[PATCH 7/9] mm: allow preemption in apply_to_pte_range

Jeremy Fitzhardinge
2009-02-18T22:31:32Z

Preemption is now allowed for lazy mmu mode, so don't disable
it for the inner loop of apply_to_pte_range.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
mm/memory.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index b80cc31..baa999e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1718,7 +1718,6 @@ static int apply_to_pte_range(struct mm_struct *mm, pmd_t *pmd,

BUG_ON(pmd_huge(*pmd));

- preempt_disable();
arch_enter_lazy_mmu_mode();

token = pmd_pgtable(*pmd);
@@ -1730,7 +1729,6 @@ static int apply_to_pte_range(struct mm_struct *mm, pmd_t *pmd,
} while (pte++, addr += PAGE_SIZE, addr != end);

arch_leave_lazy_mmu_mode();
- preempt_enable();

if (mm != &init_mm)
pte_unmap_unlock(pte-1, ptl);
--
1.6.0.6