[PATCH] ppc64: More hugepage fixes

My previous patch fixing invalidation of huge PTEs wasn't good enough, we
still had an issue if a PTE invalidation batch contained both small and
large pages.  This patch fixes this by making sure the batch is flushed if
the page size fed to it changes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/ppc64/mm/hash_native.c b/arch/ppc64/mm/hash_native.c
index eb1bbb5b6c16..bfd385b7713c 100644
--- a/arch/ppc64/mm/hash_native.c
+++ b/arch/ppc64/mm/hash_native.c
@@ -343,7 +343,7 @@ static void native_flush_hash_range(unsigned long context,
         hpte_t *hptep;
         unsigned long hpte_v;
         struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
-        unsigned long large;
+        unsigned long large = batch->large;
 
         local_irq_save(flags);
 
@@ -356,7 +356,6 @@ static void native_flush_hash_range(unsigned long context,
 
                 va = (vsid << 28) | (batch->addr[i] & 0x0fffffff);
                 batch->vaddr[j] = va;
-                large = pte_huge(batch->pte[i]);
                 if (large)
                         vpn = va >> HPAGE_SHIFT;
                 else
@@ -406,7 +405,7 @@ static void native_flush_hash_range(unsigned long context,
                 asm volatile("ptesync":::"memory");
 
                 for (i = 0; i < j; i++)
-                        __tlbie(batch->vaddr[i], 0);
+                        __tlbie(batch->vaddr[i], large);
 
                 asm volatile("eieio; tlbsync; ptesync":::"memory");