lkml.org 
[lkml]   [2009]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 7/9] mm: allow preemption in apply_to_pte_range
Date
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

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


\
 
 \ /
  Last update: 2009-02-18 23:35    [W:0.181 / U:0.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site