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| author |   Stephen Hemminger <stephen@networkplumber.org> | 2017-09-21 20:58:49 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-04 10:47:18 +0200 |
| commit | c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c (patch) | |
| tree | 0cfd997e11d7123eb1fed1bfc95522976b79d6a3 /drivers/hv/channel_mgmt.c | |
| parent | misc: mic: move to its own menu in Misc devices (diff) | |
| download | linux-dev-c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c.tar.xz linux-dev-c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c.zip | |
vmbus: add per-channel sysfs info
This extends existing vmbus related sysfs structure to provide per-channel
state information. This is useful when diagnosing issues with multiple
queues in networking and storage.
The existing sysfs only displayed information about the primary
channel. The one place it reported multiple channels was the
channel_vp_mapping file which violated the sysfs convention
of one value per file.
Signed-off-by: Stephen Hemminger <sthemmin@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/channel_mgmt.c')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 060df71c2e8b..dd2dffe816be 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -350,7 +350,7 @@ static void free_channel(struct vmbus_channel *channel) { tasklet_kill(&channel->callback_event); - kfree_rcu(channel, rcu); + kobject_put(&channel->kobj); } static void percpu_channel_enq(void *arg) @@ -513,6 +513,14 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel) newchannel->state = CHANNEL_OPEN_STATE; if (!fnew) { + struct hv_device *dev + = newchannel->primary_channel->device_obj; + + if (vmbus_add_channel_kobj(dev, newchannel)) { + atomic_dec(&vmbus_connection.offer_in_progress); + goto err_free_chan; + } + if (channel->sc_creation_callback != NULL) channel->sc_creation_callback(newchannel); return; |