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| author | Jani Nikula <jani.nikula@intel.com> | 2021-07-01 17:46:34 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2021-07-01 17:46:34 +0200 |
| commit | e42c6c1bc8d5e70d7b2c8af534b0d33a2be48f0c (patch) | |
| tree | 4b1109adc051c943ef3edd990f5a907a0836bdf8 /net/openvswitch/meter.c | |
| parent | drm/i915/display: Fix state mismatch in drm infoframe (diff) | |
| parent | Merge tag 'drm-intel-next-fixes-2021-06-29' of git://anongit.freedesktop.org/... (diff) | |
| download | linux-e42c6c1bc8d5e70d7b2c8af534b0d33a2be48f0c.tar.xz linux-e42c6c1bc8d5e70d7b2c8af534b0d33a2be48f0c.zip | |
Merge drm/drm-next into drm-intel-next
Bring drm-intel-next closer to drm-next and drm-intel-gt-next for a more
feasible baseline for topic branches.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'net/openvswitch/meter.c')
| -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. |