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net: openvswitch: use u64 for meter bucket

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When setting the meter rate to 4+Gbps, there is an
overflow, the meters don't work as expected.

Cc: Pravin B Shelar <[email protected]>
Cc: Andy Zhou <[email protected]>
Signed-off-by: Tonghao Zhang <[email protected]>
Acked-by: Pravin B Shelar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Tonghao Zhang authored and David S. Miller committed 2020-04-23 18:26:11 -07:00
1 parent c773500890
commit e57358873b
2 files changed
+2 -2
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net/openvswitch/meter.c
+1 -1
View File
@@ -392,7 +392,7 @@ static struct dp_meter *dp_meter_create(struct nlattr **a)
*
* Start with a full bucket.
*/
band->bucket = (band->burst_size + band->rate) * 1000;
band->bucket = (band->burst_size + band->rate) * 1000ULL;
band_max_delta_t = band->bucket / band->rate;
if (band_max_delta_t > meter->max_delta_t)
meter->max_delta_t = band_max_delta_t;
net/openvswitch/meter.h
+1 -1
View File
@@ -26,7 +26,7 @@ struct dp_meter_band {
u32 type;
u32 rate;
u32 burst_size;
u32 bucket; /* 1/1000 packets, or in bits */
u64 bucket; /* 1/1000 packets, or in bits */
struct ovs_flow_stats stats;
};