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yaml
---
r: 149814
b: refs/heads/master
c: 42e1b4c
h: refs/heads/master
v: v3
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Ursula Braun authored and David S. Miller committed Apr 23, 2009
1 parent 904c21c commit b154a6b
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Showing 2 changed files with 32 additions and 11 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 362b76edb78923face033e18e4ffc85df8db0f28
refs/heads/master: 42e1b4c2c6c823ae26e64c557addf5329a7735b7
41 changes: 31 additions & 10 deletions trunk/net/iucv/iucv.c
Original file line number Diff line number Diff line change
Expand Up @@ -280,6 +280,7 @@ union iucv_param {
* Anchor for per-cpu IUCV command parameter block.
*/
static union iucv_param *iucv_param[NR_CPUS];
static union iucv_param *iucv_param_irq[NR_CPUS];

/**
* iucv_call_b2f0
Expand Down Expand Up @@ -358,7 +359,7 @@ static void iucv_allow_cpu(void *data)
* 0x10 - Flag to allow priority message completion interrupts
* 0x08 - Flag to allow IUCV control interrupts
*/
parm = iucv_param[cpu];
parm = iucv_param_irq[cpu];
memset(parm, 0, sizeof(union iucv_param));
parm->set_mask.ipmask = 0xf8;
iucv_call_b2f0(IUCV_SETMASK, parm);
Expand All @@ -379,7 +380,7 @@ static void iucv_block_cpu(void *data)
union iucv_param *parm;

/* Disable all iucv interrupts. */
parm = iucv_param[cpu];
parm = iucv_param_irq[cpu];
memset(parm, 0, sizeof(union iucv_param));
iucv_call_b2f0(IUCV_SETMASK, parm);

Expand All @@ -403,7 +404,7 @@ static void iucv_declare_cpu(void *data)
return;

/* Declare interrupt buffer. */
parm = iucv_param[cpu];
parm = iucv_param_irq[cpu];
memset(parm, 0, sizeof(union iucv_param));
parm->db.ipbfadr1 = virt_to_phys(iucv_irq_data[cpu]);
rc = iucv_call_b2f0(IUCV_DECLARE_BUFFER, parm);
Expand Down Expand Up @@ -460,7 +461,7 @@ static void iucv_retrieve_cpu(void *data)
iucv_block_cpu(NULL);

/* Retrieve interrupt buffer. */
parm = iucv_param[cpu];
parm = iucv_param_irq[cpu];
iucv_call_b2f0(IUCV_RETRIEVE_BUFFER, parm);

/* Clear indication that an iucv buffer exists for this cpu. */
Expand Down Expand Up @@ -574,11 +575,22 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
iucv_irq_data[cpu] = NULL;
return NOTIFY_BAD;
}
iucv_param_irq[cpu] = kmalloc_node(sizeof(union iucv_param),
GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
if (!iucv_param_irq[cpu]) {
kfree(iucv_param[cpu]);
iucv_param[cpu] = NULL;
kfree(iucv_irq_data[cpu]);
iucv_irq_data[cpu] = NULL;
return NOTIFY_BAD;
}
break;
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
case CPU_DEAD_FROZEN:
kfree(iucv_param_irq[cpu]);
iucv_param_irq[cpu] = NULL;
kfree(iucv_param[cpu]);
iucv_param[cpu] = NULL;
kfree(iucv_irq_data[cpu]);
Expand Down Expand Up @@ -625,7 +637,7 @@ static int iucv_sever_pathid(u16 pathid, u8 userdata[16])
{
union iucv_param *parm;

parm = iucv_param[smp_processor_id()];
parm = iucv_param_irq[smp_processor_id()];
memset(parm, 0, sizeof(union iucv_param));
if (userdata)
memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
Expand Down Expand Up @@ -918,10 +930,8 @@ int iucv_path_sever(struct iucv_path *path, u8 userdata[16])
if (iucv_active_cpu != smp_processor_id())
spin_lock_bh(&iucv_table_lock);
rc = iucv_sever_pathid(path->pathid, userdata);
if (!rc) {
iucv_path_table[path->pathid] = NULL;
list_del_init(&path->list);
}
iucv_path_table[path->pathid] = NULL;
list_del_init(&path->list);
if (iucv_active_cpu != smp_processor_id())
spin_unlock_bh(&iucv_table_lock);
preempt_enable();
Expand Down Expand Up @@ -1413,7 +1423,7 @@ static void iucv_path_severed(struct iucv_irq_data *data)
else {
iucv_sever_pathid(path->pathid, NULL);
iucv_path_table[path->pathid] = NULL;
list_del_init(&path->list);
list_del(&path->list);
iucv_path_free(path);
}
}
Expand Down Expand Up @@ -1717,6 +1727,13 @@ static int __init iucv_init(void)
rc = -ENOMEM;
goto out_free;
}
iucv_param_irq[cpu] = kmalloc_node(sizeof(union iucv_param),
GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
if (!iucv_param_irq[cpu]) {
rc = -ENOMEM;
goto out_free;
}

}
rc = register_hotcpu_notifier(&iucv_cpu_notifier);
if (rc)
Expand All @@ -1734,6 +1751,8 @@ static int __init iucv_init(void)
unregister_hotcpu_notifier(&iucv_cpu_notifier);
out_free:
for_each_possible_cpu(cpu) {
kfree(iucv_param_irq[cpu]);
iucv_param_irq[cpu] = NULL;
kfree(iucv_param[cpu]);
iucv_param[cpu] = NULL;
kfree(iucv_irq_data[cpu]);
Expand Down Expand Up @@ -1764,6 +1783,8 @@ static void __exit iucv_exit(void)
spin_unlock_irq(&iucv_queue_lock);
unregister_hotcpu_notifier(&iucv_cpu_notifier);
for_each_possible_cpu(cpu) {
kfree(iucv_param_irq[cpu]);
iucv_param_irq[cpu] = NULL;
kfree(iucv_param[cpu]);
iucv_param[cpu] = NULL;
kfree(iucv_irq_data[cpu]);
Expand Down

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