Move check_pgt_cache() to tlb_finish_mmu().

It should be _after_ we have flushed the TLB.

include/asm-generic/tlb.h

@@ -86,6 +86,9 @@ static inline void tlb_finish_mmu(mmu_gather_t *tlb, unsigned long start, unsign
 		freed = rss;
 	mm->rss = rss - freed;
 	tlb_flush_mmu(tlb, start, end);
+
+	/* keep the page table cache within bounds */
+	check_pgt_cache();
 }
 
 

mm/memory.c

@@ -127,9 +127,6 @@ void clear_page_tables(mmu_gather_t *tlb, unsigned long first, int nr)
 		free_one_pgd(tlb, page_dir);
 		page_dir++;
 	} while (--nr);
-
-	/* keep the page table cache within bounds */
-	check_pgt_cache();
 }
 
 pte_t * pte_alloc_map(struct mm_struct *mm, pmd_t *pmd, unsigned long address)