net_sched: gred: use correct backlog value in WRED mode
authorDavid Ward <david.ward@ll.mit.edu>
Sun, 10 May 2015 02:01:47 +0000 (22:01 -0400)
committerDavid S. Miller <davem@davemloft.net>
Mon, 11 May 2015 17:26:26 +0000 (13:26 -0400)
commit145a42b3a964c6647464f05bd58aa33787de7f75
treec93e40ebcbd51735960eb43eae359df280a0bb54
parent665a6cd809f43eec2b51413816a4178a3390a870
net_sched: gred: use correct backlog value in WRED mode

In WRED mode, the backlog for a single virtual queue (VQ) should not be
used to determine queue behavior; instead the backlog is summed across
all VQs. This sum is currently used when calculating the average queue
lengths. It also needs to be used when determining if the queue's hard
limit has been reached, or when reporting each VQ's backlog via netlink.
q->backlog will only be used if the queue switches out of WRED mode.

Signed-off-by: David Ward <david.ward@ll.mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/sch_gred.c