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authorVlad Buslov <vladbu@mellanox.com>2018-09-24 19:22:52 +0300
committerDavid S. Miller <davem@davemloft.net>2018-09-25 20:17:35 -0700
commit9d7e82cec35c027756ec97e274f878251f271181 (patch)
treefb145dfeb6ebfe3f7053d25dfa5134eb915298a7 /block/blk-mq.c
parent3a7d0d07a386716b459b00783b11a8211cefcc0f (diff)
net: sched: add helper function to take reference to Qdisc
Implement function to take reference to Qdisc that relies on rcu read lock instead of rtnl mutex. Function only takes reference to Qdisc if reference counter isn't zero. Intended to be used by unlocked cls API. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'block/blk-mq.c')
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