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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-12-18 16:43:57 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-20 16:42:51 +0000 |
| commit | ae1402022edbeef3991f1e4bae8fa99558be291b (patch) | |
| tree | 92d0c34f87ca4174a17d8fae1ac6bcdcd032fddc /arch | |
| parent | 4b3073e1c53a256275f1079c0fbfbe85883d9275 (diff) | |
| download | linux-ae1402022edbeef3991f1e4bae8fa99558be291b.tar.gz linux-ae1402022edbeef3991f1e4bae8fa99558be291b.tar.bz2 linux-ae1402022edbeef3991f1e4bae8fa99558be291b.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/fault-armv.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c index c45f9bb318ad..c9b97e9836a2 100644 --- a/arch/arm/mm/fault-armv.c +++ b/arch/arm/mm/fault-armv.c @@ -99,7 +99,8 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address, } 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 @@ make_coherent(struct address_space *mapping, struct vm_area_struct *vma, unsigne } 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 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, #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(); } |