It seems calling flush_tlb_all() doesn't reliable flush the tlb on all
CPUs. Disable it when used with huge pages.
Signed-off-by: Helge Deller <deller@xxxxxx>
---
arch/parisc/kernel/cache.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index cda6dbb..aee27e1 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -442,13 +442,15 @@ EXPORT_SYMBOL(copy_user_page);
int __flush_tlb_range(unsigned long sid, unsigned long start,
unsigned long end)
{
- unsigned long flags, size;
+ unsigned long flags;
- size = (end - start);
+#if !defined(CONFIG_HUGETLB_PAGE)
+ unsigned long size = (end - start);
if (size >= parisc_tlb_flush_threshold) {
flush_tlb_all();
return 1;
}
+#endif
/* Purge TLB entries for small ranges using the pdtlb and
pitlb instructions. These instructions execute locally
--
2.1.0
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