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-rw-r--r--drivers/s390/char/sclp.c10
-rw-r--r--drivers/s390/cio/cio.c2
-rw-r--r--drivers/s390/net/qeth_main.c6
-rw-r--r--drivers/s390/s390mach.c3
-rw-r--r--drivers/s390/scsi/zfcp_erp.c8
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c9
6 files changed, 25 insertions, 13 deletions
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 4138564402b8..985d1613baaa 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -383,6 +383,7 @@ void
sclp_sync_wait(void)
{
unsigned long psw_mask;
+ unsigned long flags;
unsigned long cr0, cr0_sync;
u64 timeout;
@@ -395,9 +396,11 @@ sclp_sync_wait(void)
sclp_tod_from_jiffies(sclp_request_timer.expires -
jiffies);
}
+ local_irq_save(flags);
/* Prevent bottom half from executing once we force interrupts open */
local_bh_disable();
/* Enable service-signal interruption, disable timer interrupts */
+ trace_hardirqs_on();
__ctl_store(cr0, 0, 0);
cr0_sync = cr0;
cr0_sync |= 0x00000200;
@@ -415,11 +418,10 @@ sclp_sync_wait(void)
barrier();
cpu_relax();
}
- /* Restore interrupt settings */
- asm volatile ("SSM 0(%0)"
- : : "a" (&psw_mask) : "memory");
+ local_irq_disable();
__ctl_load(cr0, 0, 0);
- __local_bh_enable();
+ _local_bh_enable();
+ local_irq_restore(flags);
}
EXPORT_SYMBOL(sclp_sync_wait);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index a3423267467f..6fec90eab00e 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -147,7 +147,7 @@ cio_tpi(void)
sch->driver->irq(&sch->dev);
spin_unlock(&sch->lock);
irq_exit ();
- __local_bh_enable();
+ _local_bh_enable();
return 1;
}
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index 36733b9823c6..8e8963f15731 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -84,6 +84,8 @@ static debug_info_t *qeth_dbf_qerr = NULL;
DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
+static struct lock_class_key qdio_out_skb_queue_key;
+
/**
* some more definitions and declarations
*/
@@ -3229,6 +3231,9 @@ qeth_alloc_qdio_buffers(struct qeth_card *card)
&card->qdio.out_qs[i]->qdio_bufs[j];
skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
skb_list);
+ lockdep_set_class(
+ &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
+ &qdio_out_skb_queue_key);
INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
}
}
@@ -5272,6 +5277,7 @@ qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
struct sk_buff_head tmp_list;
skb_queue_head_init(&tmp_list);
+ lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
while ((skb = skb_dequeue(&buf->skb_list))){
if (vlan_tx_tag_present(skb) &&
diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c
index 432136f96e64..ffb3677e354f 100644
--- a/drivers/s390/s390mach.c
+++ b/drivers/s390/s390mach.c
@@ -378,6 +378,8 @@ s390_do_machine_check(struct pt_regs *regs)
struct mcck_struct *mcck;
int umode;
+ lockdep_off();
+
mci = (struct mci *) &S390_lowcore.mcck_interruption_code;
mcck = &__get_cpu_var(cpu_mcck);
umode = user_mode(regs);
@@ -482,6 +484,7 @@ s390_do_machine_check(struct pt_regs *regs)
mcck->warning = 1;
set_thread_flag(TIF_MCCK_PENDING);
}
+ lockdep_on();
}
/*
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 909731b99d26..8ec8da0beaa8 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -2168,9 +2168,9 @@ zfcp_erp_adapter_strategy_open_fsf_xconfig(struct zfcp_erp_action *erp_action)
atomic_clear_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT,
&adapter->status);
ZFCP_LOG_DEBUG("Doing exchange config data\n");
- write_lock(&adapter->erp_lock);
+ write_lock_irq(&adapter->erp_lock);
zfcp_erp_action_to_running(erp_action);
- write_unlock(&adapter->erp_lock);
+ write_unlock_irq(&adapter->erp_lock);
zfcp_erp_timeout_init(erp_action);
if (zfcp_fsf_exchange_config_data(erp_action)) {
retval = ZFCP_ERP_FAILED;
@@ -2236,9 +2236,9 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
adapter = erp_action->adapter;
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
- write_lock(&adapter->erp_lock);
+ write_lock_irq(&adapter->erp_lock);
zfcp_erp_action_to_running(erp_action);
- write_unlock(&adapter->erp_lock);
+ write_unlock_irq(&adapter->erp_lock);
zfcp_erp_timeout_init(erp_action);
ret = zfcp_fsf_exchange_port_data(erp_action, adapter, NULL);
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 345a191926a4..49ea5add4abc 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -427,6 +427,7 @@ int
zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr)
{
struct zfcp_fsf_req *fsf_req;
+ unsigned long flags;
/* invalid (per convention used in this driver) */
if (unlikely(!sbale_addr)) {
@@ -438,15 +439,15 @@ zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr)
fsf_req = (struct zfcp_fsf_req *) sbale_addr;
/* serialize with zfcp_fsf_req_dismiss_all */
- spin_lock(&adapter->fsf_req_list_lock);
+ spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
if (list_empty(&adapter->fsf_req_list_head)) {
- spin_unlock(&adapter->fsf_req_list_lock);
+ spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
return 0;
}
list_del(&fsf_req->list);
atomic_dec(&adapter->fsf_reqs_active);
- spin_unlock(&adapter->fsf_req_list_lock);
-
+ spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
+
if (unlikely(adapter != fsf_req->adapter)) {
ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, "
"fsf_req->adapter=%p, adapter=%p)\n",