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| author | David S. Miller <davem@davemloft.net> | 2015-04-02 16:16:53 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-04-02 16:16:53 -0400 |
| commit | 9f0d34bc344889c2e6c593bd949d7ab821f0f4a5 (patch) | |
| tree | e5bfc776a09315afa4dbcae97ac04f2cca239c96 /net/core/net_namespace.c | |
| parent | e4a924f5768c55002c02ceba9b9f86824c35f956 (diff) | |
| parent | 0a4812798fae4f6bfcaab51e31b3898ff5ea3108 (diff) | |
| download | linux-9f0d34bc344889c2e6c593bd949d7ab821f0f4a5.tar.gz linux-9f0d34bc344889c2e6c593bd949d7ab821f0f4a5.tar.bz2 linux-9f0d34bc344889c2e6c593bd949d7ab821f0f4a5.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/usb/asix_common.c
drivers/net/usb/sr9800.c
drivers/net/usb/usbnet.c
include/linux/usb/usbnet.h
net/ipv4/tcp_ipv4.c
net/ipv6/tcp_ipv6.c
The TCP conflicts were overlapping changes. In 'net' we added a
READ_ONCE() to the socket cached RX route read, whilst in 'net-next'
Eric Dumazet touched the surrounding code dealing with how mini
sockets are handled.
With USB, it's a case of the same bug fix first going into net-next
and then I cherry picked it back into net.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/net_namespace.c')
| -rw-r--r-- | net/core/net_namespace.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index e5e96b0f6717..ce6396a75b8b 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -338,7 +338,7 @@ static LIST_HEAD(cleanup_list); /* Must hold cleanup_list_lock to touch */ static void cleanup_net(struct work_struct *work) { const struct pernet_operations *ops; - struct net *net, *tmp; + struct net *net, *tmp, *peer; struct list_head net_kill_list; LIST_HEAD(net_exit_list); @@ -354,14 +354,6 @@ static void cleanup_net(struct work_struct *work) list_for_each_entry(net, &net_kill_list, cleanup_list) { list_del_rcu(&net->list); list_add_tail(&net->exit_list, &net_exit_list); - for_each_net(tmp) { - int id = __peernet2id(tmp, net, false); - - if (id >= 0) - idr_remove(&tmp->netns_ids, id); - } - idr_destroy(&net->netns_ids); - } rtnl_unlock(); @@ -387,12 +379,26 @@ static void cleanup_net(struct work_struct *work) */ rcu_barrier(); + rtnl_lock(); /* Finally it is safe to free my network namespace structure */ list_for_each_entry_safe(net, tmp, &net_exit_list, exit_list) { + /* Unreference net from all peers (no need to loop over + * net_exit_list because idr_destroy() will be called for each + * element of this list. + */ + for_each_net(peer) { + int id = __peernet2id(peer, net, false); + + if (id >= 0) + idr_remove(&peer->netns_ids, id); + } + idr_destroy(&net->netns_ids); + list_del_init(&net->exit_list); put_user_ns(net->user_ns); net_drop_ns(net); } + rtnl_unlock(); } static DECLARE_WORK(net_cleanup_work, cleanup_net); |