[PATCH] msync: check pte dirty earlier

[mv-sheeva.git] / mm / msync.c

diff --git a/mm/msync.c b/mm/msync.c
index 090f426bca7d538d5f84c9a8c53a677f50a31434..d0f5a1bce7cb14ecd7b74b960e87c8b079024020 100644 (file)
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -34,6 +34,8 @@ static void sync_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
                if (!pte_present(*pte))
                        continue;
+               if (!pte_maybe_dirty(*pte))
+                       continue;
                pfn = pte_pfn(*pte);
                if (!pfn_valid(pfn))
                        continue;