Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

Pull core locking updates from Ingo Molnar:
 "The main changes in this cycle were:

   - reduced/streamlined smp_mb__*() interface that allows more usecases
     and makes the existing ones less buggy, especially in rarer
     architectures

   - add rwsem implementation comments

   - bump up lockdep limits"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  rwsem: Add comments to explain the meaning of the rwsem's count field
  lockdep: Increase static allocations
  arch: Mass conversion of smp_mb__*()
  arch,doc: Convert smp_mb__*()
  arch,xtensa: Convert smp_mb__*()
  arch,x86: Convert smp_mb__*()
  arch,tile: Convert smp_mb__*()
  arch,sparc: Convert smp_mb__*()
  arch,sh: Convert smp_mb__*()
  arch,score: Convert smp_mb__*()
  arch,s390: Convert smp_mb__*()
  arch,powerpc: Convert smp_mb__*()
  arch,parisc: Convert smp_mb__*()
  arch,openrisc: Convert smp_mb__*()
  arch,mn10300: Convert smp_mb__*()
  arch,mips: Convert smp_mb__*()
  arch,metag: Convert smp_mb__*()
  arch,m68k: Convert smp_mb__*()
  arch,m32r: Convert smp_mb__*()
  arch,ia64: Convert smp_mb__*()
  ...

5 files changed, 33 insertions, 33 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 9261d5313b5b..dd57c7c5a3da 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2781,7 +2781,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 
 	case LOAD_OPEN:
 		netif_tx_start_all_queues(bp->dev);
-		smp_mb__after_clear_bit();
+		smp_mb__after_atomic();
 		break;
 
 	case LOAD_DIAG:
@@ -4939,9 +4939,9 @@ void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id,
 void bnx2x_schedule_sp_rtnl(struct bnx2x *bp, enum sp_rtnl_flag flag,
 			    u32 verbose)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	set_bit(flag, &bp->sp_rtnl_state);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 	DP((BNX2X_MSG_SP | verbose), "Scheduling sp_rtnl task [Flag: %d]\n",
 	   flag);
 	schedule_delayed_work(&bp->sp_rtnl_task, 0);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 3b0d43154e67..3a8e51ed5bec 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -1858,10 +1858,10 @@ void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe)
 		return;
 #endif
 
-	smp_mb__before_atomic_inc();
+	smp_mb__before_atomic();
 	atomic_inc(&bp->cq_spq_left);
 	/* push the change in bp->spq_left and towards the memory */
-	smp_mb__after_atomic_inc();
+	smp_mb__after_atomic();
 
 	DP(BNX2X_MSG_SP, "bp->cq_spq_left %x\n", atomic_read(&bp->cq_spq_left));
 
@@ -1876,11 +1876,11 @@ void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe)
 		 * sp_state is cleared, and this order prevents
 		 * races
 		 */
-		smp_mb__before_clear_bit();
+		smp_mb__before_atomic();
 		set_bit(BNX2X_AFEX_PENDING_VIFSET_MCP_ACK, &bp->sp_state);
 		wmb();
 		clear_bit(BNX2X_AFEX_FCOE_Q_UPDATE_PENDING, &bp->sp_state);
-		smp_mb__after_clear_bit();
+		smp_mb__after_atomic();
 
 		/* schedule the sp task as mcp ack is required */
 		bnx2x_schedule_sp_task(bp);
@@ -5272,9 +5272,9 @@ static void bnx2x_after_function_update(struct bnx2x *bp)
 		__clear_bit(RAMROD_COMP_WAIT, &queue_params.ramrod_flags);
 
 		/* mark latest Q bit */
-		smp_mb__before_clear_bit();
+		smp_mb__before_atomic();
 		set_bit(BNX2X_AFEX_FCOE_Q_UPDATE_PENDING, &bp->sp_state);
-		smp_mb__after_clear_bit();
+		smp_mb__after_atomic();
 
 		/* send Q update ramrod for FCoE Q */
 		rc = bnx2x_queue_state_change(bp, &queue_params);
@@ -5500,7 +5500,7 @@ next_spqe:
 		spqe_cnt++;
 	} /* for */
 
-	smp_mb__before_atomic_inc();
+	smp_mb__before_atomic();
 	atomic_add(spqe_cnt, &bp->eq_spq_left);
 
 	bp->eq_cons = sw_cons;
@@ -13875,9 +13875,9 @@ static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
 	case DRV_CTL_RET_L2_SPQ_CREDIT_CMD: {
 		int count = ctl->data.credit.credit_count;
 
-		smp_mb__before_atomic_inc();
+		smp_mb__before_atomic();
 		atomic_add(count, &bp->cq_spq_left);
-		smp_mb__after_atomic_inc();
+		smp_mb__after_atomic();
 		break;
 	}
 	case DRV_CTL_ULP_REGISTER_CMD: {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 31297266b743..d725317c4277 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -258,16 +258,16 @@ static bool bnx2x_raw_check_pending(struct bnx2x_raw_obj *o)
 
 static void bnx2x_raw_clear_pending(struct bnx2x_raw_obj *o)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	clear_bit(o->state, o->pstate);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 }
 
 static void bnx2x_raw_set_pending(struct bnx2x_raw_obj *o)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	set_bit(o->state, o->pstate);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 }
 
 /**
@@ -2131,7 +2131,7 @@ static int bnx2x_set_rx_mode_e1x(struct bnx2x *bp,
 
 	/* The operation is completed */
 	clear_bit(p->state, p->pstate);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 
 	return 0;
 }
@@ -3576,16 +3576,16 @@ error_exit1:
 
 static void bnx2x_mcast_clear_sched(struct bnx2x_mcast_obj *o)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	clear_bit(o->sched_state, o->raw.pstate);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 }
 
 static void bnx2x_mcast_set_sched(struct bnx2x_mcast_obj *o)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	set_bit(o->sched_state, o->raw.pstate);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 }
 
 static bool bnx2x_mcast_check_sched(struct bnx2x_mcast_obj *o)
@@ -4200,7 +4200,7 @@ int bnx2x_queue_state_change(struct bnx2x *bp,
 		if (rc) {
 			o->next_state = BNX2X_Q_STATE_MAX;
 			clear_bit(pending_bit, pending);
-			smp_mb__after_clear_bit();
+			smp_mb__after_atomic();
 			return rc;
 		}
 
@@ -4288,7 +4288,7 @@ static int bnx2x_queue_comp_cmd(struct bnx2x *bp,
 	wmb();
 
 	clear_bit(cmd, &o->pending);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 
 	return 0;
 }
@@ -5279,7 +5279,7 @@ static inline int bnx2x_func_state_change_comp(struct bnx2x *bp,
 	wmb();
 
 	clear_bit(cmd, &o->pending);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 
 	return 0;
 }
@@ -5926,7 +5926,7 @@ int bnx2x_func_state_change(struct bnx2x *bp,
 		if (rc) {
 			o->next_state = BNX2X_F_STATE_MAX;
 			clear_bit(cmd, pending);
-			smp_mb__after_clear_bit();
+			smp_mb__after_atomic();
 			return rc;
 		}
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index b8078d50261b..faf01488d26e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1650,9 +1650,9 @@ static
 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp,
 				 struct bnx2x_virtf *vf)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 }
 
 static void bnx2x_vf_handle_rss_update_eqe(struct bnx2x *bp,
@@ -2990,9 +2990,9 @@ void bnx2x_iov_task(struct work_struct *work)
 
 void bnx2x_schedule_iov_task(struct bnx2x *bp, enum bnx2x_iov_flag flag)
 {
-	smp_mb__before_clear_bit();
+	smp_mb__before_atomic();
 	set_bit(flag, &bp->iov_task_state);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 	DP(BNX2X_MSG_IOV, "Scheduling iov task [Flag: %d]\n", flag);
 	queue_delayed_work(bnx2x_iov_wq, &bp->iov_task, 0);
 }
diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index 09f3fefcbf9c..4dd48d2fa804 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -436,7 +436,7 @@ static int cnic_offld_prep(struct cnic_sock *csk)
 static int cnic_close_prep(struct cnic_sock *csk)
 {
 	clear_bit(SK_F_CONNECT_START, &csk->flags);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 
 	if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 		while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
@@ -450,7 +450,7 @@ static int cnic_close_prep(struct cnic_sock *csk)
 static int cnic_abort_prep(struct cnic_sock *csk)
 {
 	clear_bit(SK_F_CONNECT_START, &csk->flags);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 
 	while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 		msleep(1);
@@ -3646,7 +3646,7 @@ static int cnic_cm_destroy(struct cnic_sock *csk)
 
 	csk_hold(csk);
 	clear_bit(SK_F_INUSE, &csk->flags);
-	smp_mb__after_clear_bit();
+	smp_mb__after_atomic();
 	while (atomic_read(&csk->ref_count) != 1)
 		msleep(1);
 	cnic_cm_cleanup(csk);
@@ -4026,7 +4026,7 @@ static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
 			 L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
 			set_bit(SK_F_HW_ERR, &csk->flags);
 
-		smp_mb__before_clear_bit();
+		smp_mb__before_atomic();
 		clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 		cnic_cm_upcall(cp, csk, opcode);
 		break;