diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2015-05-07 02:47:44 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-24 21:19:00 +0200 |
| commit | 357e836a609812ab28fb56df28555295191bd330 (patch) | |
| tree | 34d4ec7dfefb5e72d7a2d2ff4be391cde0863b34 /drivers/hv | |
| parent | Drivers: hv: vmbus: briefly comment num_sc and next_oc (diff) | |
| download | linux-357e836a609812ab28fb56df28555295191bd330.tar.xz linux-357e836a609812ab28fb56df28555295191bd330.zip | |
Drivers: hv: vmbus: decrease num_sc on subchannel removal
It is unlikely that that host will ask us to close only one subchannel for a
device but let's be consistent. Do both num_sc++ and num_sc-- with
channel->lock to be on the safe side.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index b28cbdfe8b54..c53a171f2dc4 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -205,6 +205,7 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid) primary_channel = channel->primary_channel; spin_lock_irqsave(&primary_channel->lock, flags); list_del(&channel->sc_list); + primary_channel->num_sc--; spin_unlock_irqrestore(&primary_channel->lock, flags); } free_channel(channel); @@ -265,8 +266,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel) newchannel->primary_channel = channel; spin_lock_irqsave(&channel->lock, flags); list_add_tail(&newchannel->sc_list, &channel->sc_list); - spin_unlock_irqrestore(&channel->lock, flags); channel->num_sc++; + spin_unlock_irqrestore(&channel->lock, flags); } else goto err_free_chan; } |