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authorVitaly Kuznetsov <vkuznets@redhat.com>2015-01-20 16:45:05 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-01-25 09:18:00 -0800
commit67fae053bfc6e84144150e4c6c62670abb215c33 (patch)
treea3636a76dc94882f166e95e5ae49a9eed33c5081 /drivers/hv
parent9c3a6f7e476fc4961297fc66b1177f9f8c8dd238 (diff)
downloadlinux-67fae053bfc6e84144150e4c6c62670abb215c33.tar.bz2
Drivers: hv: rename sc_lock to the more generic lock
sc_lock spinlock in struct vmbus_channel is being used to not only protect the sc_list field, e.g. vmbus_open() function uses it to implement test-and-set access to the state field. Rename it to the more generic 'lock' and add the description. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/channel.c6
-rw-r--r--drivers/hv/channel_mgmt.c10
2 files changed, 8 insertions, 8 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();