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Lockd: pass network namespace to creation and destruction routines

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v2: dereference of most probably already released nlm_host removed in
nlmclnt_done() and reclaimer().

These routines are called from locks reclaimer() kernel thread. This thread
works in "init_net" network context and currently relays on persence on lockd
thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
on current network context. So let's pass corrent one into them.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky
2012-03-29 18:54:33 +04:00
committed by J. Bruce Fields
parent f890edbbef
commit e3f70eadb7
4 changed files with 16 additions and 14 deletions
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7
fs/lockd/svc.c
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@@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
/*
* Bring up the lockd process if it's not already up.
*/
int lockd_up(void)
int lockd_up(struct net *net)
{
struct svc_serv *serv;
int error = 0;
struct net *net = current->nsproxy->net_ns;
mutex_lock(&nlmsvc_mutex);
/*
@@ -378,12 +377,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
* Decrement the user count and bring down lockd if we're the last.
*/
void
lockd_down(void)
lockd_down(struct net *net)
{
mutex_lock(&nlmsvc_mutex);
if (nlmsvc_users) {
if (--nlmsvc_users) {
lockd_down_net(current->nsproxy->net_ns);
lockd_down_net(net);
goto out;
}
} else {