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authorDave Airlie <airlied@redhat.com>2010-10-19 09:48:34 +1000
committerDave Airlie <airlied@redhat.com>2010-10-19 09:48:34 +1000
commitb7ae5056c94a8191c1fd0b5697707377516c0c5d (patch)
tree394f68003ea0bc2a0c24e510a7c5b13f479ce743 /mm/ksm.c
parent2126d0a4a205e2d6b763434f892524cd60f74228 (diff)
parent6a2a11dbea5db417d200d38dda53c30a2e5603e0 (diff)
Merge branch 'drm-fixes' of /home/airlied/kernel/linux-2.6 into drm-core-next
Conflicts: drivers/gpu/drm/i915/intel_fb.c drivers/gpu/drm/radeon/r600_blit_kms.c drivers/gpu/drm/ttm/ttm_bo.c
Diffstat (limited to 'mm/ksm.c')
-rw-r--r--mm/ksm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index b1873cf03ed..65ab5c7067d 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -712,7 +712,7 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page,
if (!ptep)
goto out;
- if (pte_write(*ptep)) {
+ if (pte_write(*ptep) || pte_dirty(*ptep)) {
pte_t entry;
swapped = PageSwapCache(page);
@@ -735,7 +735,9 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page,
set_pte_at(mm, addr, ptep, entry);
goto out_unlock;
}
- entry = pte_wrprotect(entry);
+ if (pte_dirty(entry))
+ set_page_dirty(page);
+ entry = pte_mkclean(pte_wrprotect(entry));
set_pte_at_notify(mm, addr, ptep, entry);
}
*orig_pte = *ptep;