Drivers: hv: vmbus: channge vmbus_connection.channel_lock to mutex
spinlock is unnecessary here.
mutex is enough.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 9c9da3a..d013171 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -206,9 +206,9 @@
}
if (channel->primary_channel == NULL) {
- spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+ mutex_lock(&vmbus_connection.channel_mutex);
list_del(&channel->listentry);
- spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+ mutex_unlock(&vmbus_connection.channel_mutex);
primary_channel = channel;
} else {
@@ -253,7 +253,7 @@
unsigned long flags;
/* Make sure this is a new offer */
- spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+ mutex_lock(&vmbus_connection.channel_mutex);
list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {
if (!uuid_le_cmp(channel->offermsg.offer.if_type,
@@ -269,7 +269,7 @@
list_add_tail(&newchannel->listentry,
&vmbus_connection.chn_list);
- spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+ mutex_unlock(&vmbus_connection.channel_mutex);
if (!fnew) {
/*
@@ -341,9 +341,9 @@
err_deq_chan:
vmbus_release_relid(newchannel->offermsg.child_relid);
- spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+ mutex_lock(&vmbus_connection.channel_mutex);
list_del(&newchannel->listentry);
- spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+ mutex_unlock(&vmbus_connection.channel_mutex);
if (newchannel->target_cpu != get_cpu()) {
put_cpu();