Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

Pull RCU changes from Paul E. McKenney:

- Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar.

- Replace calls of RCU-bh and RCU-sched update-side functions
  to their vanilla RCU counterparts.  This series is a step
  towards complete removal of the RCU-bh and RCU-sched update-side
  functions.

  ( Note that some of these conversions are going upstream via their
    respective maintainers. )

- Documentation updates, including a number of flavor-consolidation
  updates from Joel Fernandes.

- Miscellaneous fixes.

- Automate generation of the initrd filesystem used for
  rcutorture testing.

- Convert spin_is_locked() assertions to instead use lockdep.

  ( Note that some of these conversions are going upstream via their
    respective maintainers. )

- SRCU updates, especially including a fix from Dennis Krein
  for a bag-on-head-class bug.

- RCU torture-test updates.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

9 files changed, 10 insertions, 10 deletions

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 677618e6f1f7..dc8603d34320 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2187,7 +2187,7 @@ static void shutdown_smi(void *send_info)
 	 * handlers might have been running before we freed the
 	 * interrupt.
 	 */
-	synchronize_sched();
+	synchronize_rcu();
 
 	/*
 	 * Timeouts are stopped, now make sure the interrupts are off
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 6d53f7d9fc7a..ffa9adeaba31 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -346,7 +346,7 @@ static inline void gov_clear_update_util(struct cpufreq_policy *policy)
 	for_each_cpu(i, policy->cpus)
 		cpufreq_remove_update_util_hook(i);
 
-	synchronize_sched();
+	synchronize_rcu();
 }
 
 static struct policy_dbs_info *alloc_policy_dbs_info(struct cpufreq_policy *policy,
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 9578312e43f2..ed124d72db76 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1930,7 +1930,7 @@ static void intel_pstate_clear_update_util_hook(unsigned int cpu)
 
 	cpufreq_remove_update_util_hook(cpu);
 	cpu_data->update_util_set = false;
-	synchronize_sched();
+	synchronize_rcu();
 }
 
 static int intel_pstate_get_max_freq(struct cpudata *cpu)
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index ffd68a7bc9e1..69d752f0b621 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -1661,7 +1661,7 @@ static void rtl8139_tx_timeout_task (struct work_struct *work)
 
 	napi_disable(&tp->napi);
 	netif_stop_queue(dev);
-	synchronize_sched();
+	synchronize_rcu();
 
 	netdev_dbg(dev, "Transmit timeout, status %02x %04x %04x media %02x\n",
 		   RTL_R8(ChipCmd), RTL_R16(IntrStatus),
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 1fd01688d37b..4f1d89f0dc24 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5866,7 +5866,7 @@ static void rtl_reset_work(struct rtl8169_private *tp)
 
 	napi_disable(&tp->napi);
 	netif_stop_queue(dev);
-	synchronize_sched();
+	synchronize_rcu();
 
 	rtl8169_hw_reset(tp);
 
@@ -6609,7 +6609,7 @@ static void rtl8169_down(struct net_device *dev)
 	rtl8169_rx_missed(dev);
 
 	/* Give a racing hard_start_xmit a few cycles to complete. */
-	synchronize_sched();
+	synchronize_rcu();
 
 	rtl8169_tx_clear(tp);
 
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 98fe7e762e17..3643015a55cf 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -3167,7 +3167,7 @@ struct hlist_head *efx_rps_hash_bucket(struct efx_nic *efx,
 {
 	u32 hash = efx_filter_spec_hash(spec);
 
-	WARN_ON(!spin_is_locked(&efx->rps_hash_lock));
+	lockdep_assert_held(&efx->rps_hash_lock);
 	if (!efx->rps_hash_table)
 		return NULL;
 	return &efx->rps_hash_table[hash % EFX_ARFS_HASH_TABLE_SIZE];
diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c
index c2c50522b96d..808cf9816673 100644
--- a/drivers/net/ethernet/sis/sis190.c
+++ b/drivers/net/ethernet/sis/sis190.c
@@ -1142,7 +1142,7 @@ static void sis190_down(struct net_device *dev)
 		if (!poll_locked)
 			poll_locked++;
 
-		synchronize_sched();
+		synchronize_rcu();
 
 	} while (SIS_R32(IntrMask));
 
diff --git a/drivers/net/ethernet/smsc/smsc911x.h b/drivers/net/ethernet/smsc/smsc911x.h
index 8d75508acd2b..51b2fc1a395f 100644
--- a/drivers/net/ethernet/smsc/smsc911x.h
+++ b/drivers/net/ethernet/smsc/smsc911x.h
@@ -67,7 +67,7 @@
 
 #ifdef CONFIG_DEBUG_SPINLOCK
 #define SMSC_ASSERT_MAC_LOCK(pdata) \
-		WARN_ON_SMP(!spin_is_locked(&pdata->mac_lock))
+		lockdep_assert_held(&pdata->mac_lock)
 #else
 #define SMSC_ASSERT_MAC_LOCK(pdata) do {} while (0)
 #endif				/* CONFIG_DEBUG_SPINLOCK */
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index ab11b2bee273..564ead864028 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1359,7 +1359,7 @@ static int vhost_net_release(struct inode *inode, struct file *f)
 	if (rx_sock)
 		sockfd_put(rx_sock);
 	/* Make sure no callbacks are outstanding */
-	synchronize_rcu_bh();
+	synchronize_rcu();
 	/* We do an extra flush before freeing memory,
 	 * since jobs can re-queue themselves. */
 	vhost_net_flush(n);