diff options
| -rw-r--r-- | drivers/hv/channel.c | 1 | ||||
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 45 | ||||
| -rw-r--r-- | include/linux/hyperv.h | 17 |
3 files changed, 0 insertions, 63 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index de8193f3b838..f96a77b18bb9 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -703,7 +703,6 @@ int vmbus_disconnect_ring(struct vmbus_channel *channel) /* Snapshot the list of subchannels */ spin_lock_irqsave(&channel->lock, flags); list_splice_init(&channel->sc_list, &list); - channel->num_sc = 0; spin_unlock_irqrestore(&channel->lock, flags); list_for_each_entry_safe(cur_channel, tmp, &list, sc_list) { diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 6277597d3d58..82e673671087 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -405,7 +405,6 @@ void hv_process_channel_removal(struct vmbus_channel *channel) 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); } @@ -483,7 +482,6 @@ 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); - channel->num_sc++; spin_unlock_irqrestore(&channel->lock, flags); } else { goto err_free_chan; @@ -1239,49 +1237,6 @@ cleanup: return ret; } -/* - * Retrieve the (sub) channel on which to send an outgoing request. - * When a primary channel has multiple sub-channels, we try to - * distribute the load equally amongst all available channels. - */ -struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary) -{ - struct list_head *cur, *tmp; - int cur_cpu; - struct vmbus_channel *cur_channel; - struct vmbus_channel *outgoing_channel = primary; - int next_channel; - int i = 1; - - if (list_empty(&primary->sc_list)) - return outgoing_channel; - - next_channel = primary->next_oc++; - - if (next_channel > (primary->num_sc)) { - primary->next_oc = 0; - return outgoing_channel; - } - - cur_cpu = hv_cpu_number_to_vp_number(smp_processor_id()); - list_for_each_safe(cur, tmp, &primary->sc_list) { - cur_channel = list_entry(cur, struct vmbus_channel, sc_list); - if (cur_channel->state != CHANNEL_OPENED_STATE) - continue; - - if (cur_channel->target_vp == cur_cpu) - return cur_channel; - - if (i == next_channel) - return cur_channel; - - i++; - } - - return outgoing_channel; -} -EXPORT_SYMBOL_GPL(vmbus_get_outgoing_channel); - static void invoke_sc_cb(struct vmbus_channel *primary_channel) { struct list_head *cur, *tmp; diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index b3e24368930a..07a367f5e22f 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -831,15 +831,6 @@ struct vmbus_channel { */ struct list_head sc_list; /* - * Current number of sub-channels. - */ - int num_sc; - /* - * Number of a sub-channel (position within sc_list) which is supposed - * to be used as the next outgoing channel. - */ - int next_oc; - /* * The primary channel this sub-channel belongs to. * This will be NULL for the primary channel. */ @@ -966,14 +957,6 @@ void vmbus_set_chn_rescind_callback(struct vmbus_channel *channel, void (*chn_rescind_cb)(struct vmbus_channel *)); /* - * Retrieve the (sub) channel on which to send an outgoing request. - * When a primary channel has multiple sub-channels, we choose a - * channel whose VCPU binding is closest to the VCPU on which - * this call is being made. - */ -struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary); - -/* * Check if sub-channels have already been offerred. This API will be useful * when the driver is unloaded after establishing sub-channels. In this case, * when the driver is re-loaded, the driver would have to check if the |