| commit | 0cc09020aefe832db23d63cd3a6c889ab7645eec | |
| author | Florian Westphal <fw@strlen.de> | |
| Wed, 9 Aug 2017 18:41:50 +0000 (9 20:41 +0200) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Wed, 9 Aug 2017 23:57:38 +0000 (9 16:57 -0700) | ||
| tree | 5458da1272db981d04048d558e64baa5bdcdabbf | treesnapshot (tar.gz zip) |
| parent | 019a316992ee0d9832b1c480c899d6bdf2a0a77e | commitdiff |
rtnetlink: small rtnl lock pushdown
instead of rtnl lock/unload at the top level, push it down
to the called function.
This is just an intermediate step, next commit switches protection
of the rtnl_link ops table to rcu, in which case (for dumps) the
rtnl lock is acquired only by the netlink dumper infrastructure
(current lock/unlock/dump/lock/unlock rtnl sequence becomes
rcu lock/rcu unlock/dump).
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
instead of rtnl lock/unload at the top level, push it down
to the called function.
This is just an intermediate step, next commit switches protection
of the rtnl_link ops table to rcu, in which case (for dumps) the
rtnl lock is acquired only by the netlink dumper infrastructure
(current lock/unlock/dump/lock/unlock rtnl sequence becomes
rcu lock/rcu unlock/dump).
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/core/rtnetlink.c | diffblobblamehistory |