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| author |   Paolo Abeni <pabeni@redhat.com> | 2019-04-10 14:32:41 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-04-10 12:20:46 -0700 |
| commit | 73eb628ddfd3884d1e58a8022de2e78de7807fc6 (patch) | |
| tree | f9963afb03df6761396729cfad94621e7d3d5ab0 /net/core/net_namespace.c | |
| parent | net: sched: when clearing NOLOCK, clear TCQ_F_CPUSTATS, too (diff) | |
| download | wireguard-linux-73eb628ddfd3884d1e58a8022de2e78de7807fc6.tar.xz wireguard-linux-73eb628ddfd3884d1e58a8022de2e78de7807fc6.zip | |
Revert: "net: sched: put back q.qlen into a single location"
This revert commit 46b1c18f9deb ("net: sched: put back q.qlen into
a single location").
After the previous patch, when a NOLOCK qdisc is enslaved to a
locking qdisc it switches to global stats accounting. As a consequence,
when a classful qdisc accesses directly a child qdisc's qlen, such
qdisc is not doing per CPU accounting and qlen value is consistent.
In the control path nobody uses directly qlen since commit
e5f0e8f8e45 ("net: sched: introduce and use qdisc tree flush/purge
helpers"), so we can remove the contented atomic ops from the
datapath.
v1 -> v2:
- complete the qdisc_qstats_atomic_qlen_dec() ->
qdisc_qstats_cpu_qlen_dec() replacement, fix build issue
- more descriptive commit message
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/net_namespace.c')
0 files changed, 0 insertions, 0 deletions