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RDMA/counter: Query a counter before release

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[ Upstream commit c1d869d64a ]

Query a dynamically-allocated counter before release it, to update it's
hwcounters and log all of them into history data. Otherwise all values of
these hwcounters will be lost.

Fixes: f34a55e497 ("RDMA/core: Get sum value of all counters when perform a sysfs stat read")
Link: https://lore.kernel.org/r/20200621110000.56059-1-leon@kernel.org
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mark Zhang
2020-06-21 14:00:00 +03:00
committed by Greg Kroah-Hartman
parent 53e9b62672
commit 8a1b8e6420
1 changed files with 3 additions and 1 deletions
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4
drivers/infiniband/core/counters.c
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@@ -195,7 +195,7 @@ static int __rdma_counter_unbind_qp(struct ib_qp *qp)
return ret;
}
static void counter_history_stat_update(const struct rdma_counter *counter)
static void counter_history_stat_update(struct rdma_counter *counter)
{
struct ib_device *dev = counter->device;
struct rdma_port_counter *port_counter;
@@ -205,6 +205,8 @@ static void counter_history_stat_update(const struct rdma_counter *counter)
if (!port_counter->hstats)
return;
rdma_counter_query_stats(counter);
for (i = 0; i < counter->stats->num_counters; i++)
port_counter->hstats->value[i] += counter->stats->value[i];
}