| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 082/100] net/mlx4_core: Fix wrong calculation of free counters | Date | Thu, 29 Nov 2018 15:12:52 +0100 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Eran Ben Elisha <eranbe@mellanox.com>
commit 0bb9fc4f5429ac970181c073aa32e521e20f7b73 upstream.
The field res_free indicates the total number of counters which are available for allocation (reserved and unreserved). Fixed a bug where the reserved counters were subtracted from res_free before any allocation was performed.
Before this fix, free counters which were not reserved could not be allocated.
Fixes: 9de92c60beaa ("net/mlx4_core: Adjust counter grant policy in the resource tracker") Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -611,7 +611,6 @@ int mlx4_init_resource_tracker(struct ml MLX4_MAX_PORTS; else res_alloc->guaranteed[t] = 0; - res_alloc->res_free -= res_alloc->guaranteed[t]; break; default: break;
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