diff options
| -rw-r--r-- | drivers/hv/channel.c | 6 | ||||
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 10 | ||||
| -rw-r--r-- | include/linux/hyperv.h | 7 |
3 files changed, 14 insertions, 9 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 18c4f23dacf1..2978f5ee8d2a 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -73,14 +73,14 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, unsigned long flags; int ret, t, err = 0; - spin_lock_irqsave(&newchannel->sc_lock, flags); + spin_lock_irqsave(&newchannel->lock, flags); if (newchannel->state == CHANNEL_OPEN_STATE) { newchannel->state = CHANNEL_OPENING_STATE; } else { - spin_unlock_irqrestore(&newchannel->sc_lock, flags); + spin_unlock_irqrestore(&newchannel->lock, flags); return -EINVAL; } - spin_unlock_irqrestore(&newchannel->sc_lock, flags); + spin_unlock_irqrestore(&newchannel->lock, flags); newchannel->onchannel_callback = onchannelcallback; newchannel->channel_callback_context = context; diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 704c0e00f8d2..1e0b996ed643 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -146,7 +146,7 @@ static struct vmbus_channel *alloc_channel(void) return NULL; spin_lock_init(&channel->inbound_lock); - spin_lock_init(&channel->sc_lock); + spin_lock_init(&channel->lock); INIT_LIST_HEAD(&channel->sc_list); INIT_LIST_HEAD(&channel->percpu_list); @@ -246,9 +246,9 @@ static void vmbus_process_rescind_offer(struct work_struct *work) spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags); } else { primary_channel = channel->primary_channel; - spin_lock_irqsave(&primary_channel->sc_lock, flags); + spin_lock_irqsave(&primary_channel->lock, flags); list_del(&channel->sc_list); - spin_unlock_irqrestore(&primary_channel->sc_lock, flags); + spin_unlock_irqrestore(&primary_channel->lock, flags); } free_channel(channel); } @@ -323,9 +323,9 @@ static void vmbus_process_offer(struct work_struct *work) * Process the sub-channel. */ newchannel->primary_channel = channel; - spin_lock_irqsave(&channel->sc_lock, flags); + spin_lock_irqsave(&channel->lock, flags); list_add_tail(&newchannel->sc_list, &channel->sc_list); - spin_unlock_irqrestore(&channel->sc_lock, flags); + spin_unlock_irqrestore(&channel->lock, flags); if (newchannel->target_cpu != get_cpu()) { put_cpu(); diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 259023a34bec..5a2ba674795e 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -734,7 +734,12 @@ struct vmbus_channel { */ void (*sc_creation_callback)(struct vmbus_channel *new_sc); - spinlock_t sc_lock; + /* + * The spinlock to protect the structure. It is being used to protect + * test-and-set access to various attributes of the structure as well + * as all sc_list operations. + */ + spinlock_t lock; /* * All Sub-channels of a primary channel are linked here. */ |