[PATCH 4.0 019/105] xen/netback: Properly initialize credit_bytes

From: Greg Kroah-Hartman
Date: Fri Jun 19 2015 - 16:40:10 EST

4.0-stable review patch. If anyone has any objections, please let me know.


From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>

[ Upstream commit ce0e5c522d3924090c20e774359809a7aa08c44c ]

Commit e9ce7cb6b107 ("xen-netback: Factor queue-specific data into queue
struct") introduced a regression when moving queue-specific data into
the queue struct by failing to set the credit_bytes field. This
prevented bandwidth limiting from working. Initialize the field as it
was done before multiqueue support was added.

Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
drivers/net/xen-netback/xenbus.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -736,6 +736,7 @@ static void connect(struct backend_info
goto err;

+ queue->credit_bytes = credit_bytes;
queue->remaining_credit = credit_bytes;
queue->credit_usec = credit_usec;

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