ARM: make_coherent(): fix problems with highpte, part 2
update_mmu_cache() is called with the page table for the faulted-in
page still mapped. We need to modify the PTE for this page to ensure
coherency with other shared mappings when multiple shared mappings
exist within a MM.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index c45f9bb..c9b97e9 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -99,7 +99,8 @@
}
static void
-make_coherent(struct address_space *mapping, struct vm_area_struct *vma, unsigned long addr, unsigned long pfn)
+make_coherent(struct address_space *mapping, struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep, unsigned long pfn)
{
struct mm_struct *mm = vma->vm_mm;
struct vm_area_struct *mpnt;
@@ -131,7 +132,7 @@
}
flush_dcache_mmap_unlock(mapping);
if (aliases)
- adjust_pte(vma, addr, pfn);
+ do_adjust_pte(vma, addr, pfn, ptep);
else
flush_cache_page(vma, addr, pfn);
}
@@ -174,7 +175,7 @@
#endif
if (mapping) {
if (cache_is_vivt())
- make_coherent(mapping, vma, addr, pfn);
+ make_coherent(mapping, vma, addr, ptep, pfn);
else if (vma->vm_flags & VM_EXEC)
__flush_icache_all();
}