Re: [RFC PATCH 07/13] xen-netback: add persistent tree counters to debugfs
From: Wei Liu <hidden>
Date: 2015-05-19 15:36:14
On Tue, May 12, 2015 at 07:18:31PM +0200, Joao Martins wrote:
Prints the total/max number of persistent grants and how many of them are in use. Signed-off-by: Joao Martins <redacted>
Reviewed-by: Wei Liu <redacted>
quoted hunk ↗ jump to hunk
--- drivers/net/xen-netback/xenbus.c | 11 +++++++++++ 1 file changed, 11 insertions(+)diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 766f7e5..1e6f27a 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c@@ -121,6 +121,17 @@ static int xenvif_read_io_ring(struct seq_file *m, void *v) skb_queue_len(&queue->rx_queue), netif_tx_queue_stopped(dev_queue) ? "stopped" : "running"); + if (queue->vif->persistent_grants) { + seq_printf(m, "\nRx persistent_gnts: in_use %d max %d gnts %d\n", + atomic_read(&queue->rx_gnts_tree.gnt_in_use), + queue->rx_gnts_tree.gnt_max, + queue->rx_gnts_tree.gnt_c); + seq_printf(m, "\nTx persistent_gnts: in_use %d max %d gnts %d\n", + atomic_read(&queue->tx_gnts_tree.gnt_in_use), + queue->tx_gnts_tree.gnt_max, + queue->tx_gnts_tree.gnt_c); + } + return 0; }-- 2.1.3