diff options
| -rw-r--r-- | net/iucv/iucv.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c index a35240f61ec3..fcf404065f12 100644 --- a/net/iucv/iucv.c +++ b/net/iucv/iucv.c @@ -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 @@ -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); @@ -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); @@ -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); @@ -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. */ @@ -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]); @@ -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)); @@ -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(); @@ -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); } } @@ -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) @@ -1734,6 +1751,8 @@ out_cpu: 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]); @@ -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]); |