net/mlx5e: CT: Use rhashtable's ct entries instead of a separate list

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Fixes CT entries list corruption.

After allowing parallel insertion/removals in upper nf flow table
layer, unprotected ct entries list can be corrupted by parallel add/del
on the same flow table.

CT entries list is only used while freeing a ct zone flow table to
go over all the ct entries offloaded on that zone/table, and flush
the table.

As rhashtable already provides an api to go over all the inserted entries,
fix the race by using the rhashtable iteration instead, and remove the list.

Fixes: 7da182a998 ("netfilter: flowtable: Use work entry per offload command")
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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Paul Blakey 2020-03-27 12:12:31 +03:00 • committed by Saeed Mahameed

parent 230a1bc247

commit 9808dd0a2a

1 changed files with 7 additions and 12 deletions

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drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c

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