sparc64: Flush TLB before releasing pages.
tlb_flush_mmu() needs to flush pending TLB entries before
processing the mmu_gather ->pages list.
Noticed by Benjamin Herrenschmidt.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index ec81cde..ee38e73 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -57,6 +57,8 @@
static inline void tlb_flush_mmu(struct mmu_gather *mp)
{
+ if (!mp->fullmm)
+ flush_tlb_pending();
if (mp->need_flush) {
free_pages_and_swap_cache(mp->pages, mp->pages_nr);
mp->pages_nr = 0;
@@ -78,8 +80,6 @@
if (mp->fullmm)
mp->fullmm = 0;
- else
- flush_tlb_pending();
/* keep the page table cache within bounds */
check_pgt_cache();