arm64: mm: Add THP TLB entries to general mmu_gather

When arm64 moved over to the core mmu_gather, it lost the logic to flush THP TLB entries (tlb_remove_pmd_tlb_entry was removed and the core implementation only signals that the mmu_gather needs a flush). This patch ensures that tlb_add_flush is called for THP TLB entries. Signed-off-by: Steve Capper <[email protected]> Acked-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
zubinmehta · Apr 25, 2014 · 2eb835e · 2eb835e
1 parent c46a98a
commit 2eb835e
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
@@ -19,6 +19,7 @@
 #ifndef __ASM_TLB_H
 #define __ASM_TLB_H
 
+#define  __tlb_remove_pmd_tlb_entry __tlb_remove_pmd_tlb_entry
 
 #include <asm-generic/tlb.h>
 
@@ -99,5 +100,10 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
 }
 #endif
 
+static inline void __tlb_remove_pmd_tlb_entry(struct mmu_gather *tlb, pmd_t *pmdp,
+						unsigned long address)
+{
+	tlb_add_flush(tlb, address);
+}
 
 #endif