net: sched: protect chain->explicitly_created with block->lock

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In order to remove dependency on rtnl lock, protect
tcf_chain->explicitly_created flag with block->lock. Consolidate code that
checks and resets 'explicitly_created' flag into __tcf_chain_put() to
execute it atomically with rest of code that puts chain reference.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Vlad Buslov 2019-02-11 10:55:33 +02:00 • committed by David S. Miller

parent c266f64dbf

commit 91052fa1c6

1 changed files with 13 additions and 6 deletions

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19

net/sched/cls_api.c

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