[PATCH 1/3] x86/mm: expose track_pfn_insert()

[Haozhong Zhang <haozhong.zhang@xxxxxxxxx>]

KVM MMU will use it to get the cache mode of the host pfn.

Signed-off-by: Haozhong Zhang <haozhong.zhang@xxxxxxxxx>
---
 arch/x86/mm/pat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index fe7d57a8fb60..cab593ea8956 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -998,6 +998,7 @@ void track_pfn_insert(struct vm_area_struct *vma, pgprot_t *prot, pfn_t pfn)
 	*prot = __pgprot((pgprot_val(*prot) & (~_PAGE_CACHE_MASK)) |
 			 cachemode2protval(pcm));
 }
+EXPORT_SYMBOL_GPL(track_pfn_insert);
 
 /*
  * untrack_pfn is called while unmapping a pfnmap for a region.
-- 
2.14.1