From 5639bc4a64786c94eba3d2ba6a4ff4b290da1fb1 Mon Sep 17 00:00:00 2001
From: Hillf Danton <dhillf@gmail.com>
Date: Tue, 22 Nov 2011 14:38:02 +0000
Subject: MIPS: Hugetlb: Keep TLB cache hot while flushing

If we only flush the TLB of the given huge page, the TLB cache remains hot
for the relevant mm as it is, and less will be refilled after flush, huge
or not.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Cc: linux-mips@linux-mips.org
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/2860/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index c565b7c..58d3688 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -70,7 +70,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
-	flush_tlb_mm(vma->vm_mm);
+	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
 static inline int huge_pte_none(pte_t pte)
-- 
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