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Merge remote-tracking branch 'torvalds/master' into perf/core
[sfrench/cifs-2.6.git]
/
arch
/
csky
/
abiv2
/
cacheflush.c
diff --git
a/arch/csky/abiv2/cacheflush.c
b/arch/csky/abiv2/cacheflush.c
index 790f1ebfba44ba925ccd94f1927b61e03137dbc6..39c51399dd81da57ef4d9c580bd31bdf5e2b6f0b 100644
(file)
--- a/
arch/csky/abiv2/cacheflush.c
+++ b/
arch/csky/abiv2/cacheflush.c
@@
-12,6
+12,9
@@
void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
unsigned long addr;
struct page *page;
+ if (!pfn_valid(pte_pfn(*pte)))
+ return;
+
page = pfn_to_page(pte_pfn(*pte));
if (page == ZERO_PAGE(0))
return;