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| author | Jakub Kicinski <kuba@kernel.org> | 2021-05-27 19:22:11 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-05-27 19:55:10 +0300 |
| commit | 5ada57a9a6b0be0e6dfcbd4afa519b0347fd5649 (patch) | |
| tree | f82f466df9272bb0c385320b25adc51c45309f84 /net/openvswitch | |
| parent | 59c56342459a483d5e563ed8b5fdb77ab7622a73 (diff) | |
| parent | d7c5303fbc8ac874ae3e597a5a0d3707dc0230b4 (diff) | |
| download | linux-5ada57a9a6b0be0e6dfcbd4afa519b0347fd5649.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
cdc-wdm: s/kill_urbs/poison_urbs/ to fix build
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/openvswitch')
| -rw-r--r-- | net/openvswitch/meter.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c index 96b524ceabca..896b8f5bc885 100644 --- a/net/openvswitch/meter.c +++ b/net/openvswitch/meter.c @@ -611,6 +611,14 @@ bool ovs_meter_execute(struct datapath *dp, struct sk_buff *skb, spin_lock(&meter->lock); long_delta_ms = (now_ms - meter->used); /* ms */ + if (long_delta_ms < 0) { + /* This condition means that we have several threads fighting + * for a meter lock, and the one who received the packets a + * bit later wins. Assuming that all racing threads received + * packets at the same time to avoid overflow. + */ + long_delta_ms = 0; + } /* Make sure delta_ms will not be too large, so that bucket will not * wrap around below. |