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authorDexuan Cui <decui@microsoft.com>2015-12-14 16:01:51 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-12-14 19:15:05 -0800
commitd6f591e339d23f434efda11917da511870891472 (patch)
tree031bf2d9e6c519789fe7413d75587c87a00d334c /drivers/hv/connection.c
parentf52078cf5711ce47c113a58702b35c8ff5f212f5 (diff)
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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>
Diffstat (limited to 'drivers/hv/connection.c')
-rw-r--r--drivers/hv/connection.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 4fc2e8836e60..521f48ed188e 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -146,7 +146,7 @@ int vmbus_connect(void)
spin_lock_init(&vmbus_connection.channelmsg_lock);
INIT_LIST_HEAD(&vmbus_connection.chn_list);
- spin_lock_init(&vmbus_connection.channel_lock);
+ mutex_init(&vmbus_connection.channel_mutex);
/*
* Setup the vmbus event connection for channel interrupt
@@ -282,11 +282,10 @@ struct vmbus_channel *relid2channel(u32 relid)
{
struct vmbus_channel *channel;
struct vmbus_channel *found_channel = NULL;
- unsigned long flags;
struct list_head *cur, *tmp;
struct vmbus_channel *cur_sc;
- 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 (channel->offermsg.child_relid == relid) {
found_channel = channel;
@@ -305,7 +304,7 @@ struct vmbus_channel *relid2channel(u32 relid)
}
}
}
- spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+ mutex_unlock(&vmbus_connection.channel_mutex);
return found_channel;
}