--- zzzz-none-000/linux-3.10.107/include/linux/mman.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/linux/mman.h	2021-02-04 17:41:59.000000000 +0000
@@ -9,13 +9,20 @@
 
 extern int sysctl_overcommit_memory;
 extern int sysctl_overcommit_ratio;
+extern unsigned long sysctl_overcommit_kbytes;
 extern struct percpu_counter vm_committed_as;
 
+#ifdef CONFIG_SMP
+extern s32 vm_committed_as_batch;
+#else
+#define vm_committed_as_batch 0
+#endif
+
 unsigned long vm_memory_committed(void);
 
 static inline void vm_acct_memory(long pages)
 {
-	percpu_counter_add(&vm_committed_as, pages);
+	__percpu_counter_add(&vm_committed_as, pages, vm_committed_as_batch);
 }
 
 static inline void vm_unacct_memory(long pages)
@@ -81,4 +88,6 @@
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
 	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
 }
+
+unsigned long vm_commit_limit(void);
 #endif /* _LINUX_MMAN_H */