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| author |   David S. Miller <davem@davemloft.net> | 2018-03-31 22:24:58 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-31 22:24:58 -0400 |
| commit | b3834acdd78e2b626d576e90c502727da5a46e3c (patch) | |
| tree | bc6dd02f1ba8878c6fd3ecb8ce86e1f0d6fdb4c9 /drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | |
| parent | net: hns3: remove unnecessary pci_set_drvdata() and devm_kfree() (diff) | |
| parent | net: Do not take net_rwsem in __rtnl_link_unregister() (diff) | |
| download | linux-dev-b3834acdd78e2b626d576e90c502727da5a46e3c.tar.xz linux-dev-b3834acdd78e2b626d576e90c502727da5a46e3c.zip | |
Merge branch 'net_rwsem-fixes'
Kirill Tkhai says:
====================
net_rwsem fixes
there is wext_netdev_notifier_call()->wireless_nlevent_flush()
netdevice notifier, which takes net_rwsem, so we can't take
net_rwsem in {,un}register_netdevice_notifier().
Since {,un}register_netdevice_notifier() is executed under
pernet_ops_rwsem, net_namespace_list can't change, while we
holding it, so there is no need net_rwsem in these functions [1/2].
The same is in [2/2]. We make callers of __rtnl_link_unregister()
take pernet_ops_rwsem, and close the race with setup_net()
and cleanup_net(), so __rtnl_link_unregister() does not need it.
This also fixes the problem of that __rtnl_link_unregister() does
not see initializing and exiting nets.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions