mm, oom: introduce oom reaper

[karo-tx-linux.git] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5ac140dcb789499e51b951fa45fb34378d636407..289c2314d76668b8357728382bb33d6828617458 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -512,7 +512,6 @@ static inline void napi_enable(struct napi_struct *n)
        clear_bit(NAPI_STATE_NPSVC, &n->state);
 }
 
-#ifdef CONFIG_SMP
 /**
  *     napi_synchronize - wait until NAPI is not running
  *     @n: napi context
@@ -523,12 +522,12 @@ static inline void napi_enable(struct napi_struct *n)
  */
 static inline void napi_synchronize(const struct napi_struct *n)
 {
-       while (test_bit(NAPI_STATE_SCHED, &n->state))
-               msleep(1);
+       if (IS_ENABLED(CONFIG_SMP))
+               while (test_bit(NAPI_STATE_SCHED, &n->state))
+                       msleep(1);
+       else
+               barrier();
 }
-#else
-# define napi_synchronize(n)   barrier()
-#endif
 
 enum netdev_queue_state_t {
        __QUEUE_STATE_DRV_XOFF,