nfsd: pass proper net to nfsd_destroy() from NFSd kthreads

Since NFSd service is per-net now, we have to pass proper network
context in nfsd_shutdown() from NFSd kthreads.

The simplest way I found is to get proper net from one of transports
with permanent sockets.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 2cfd9c69503e..cee62ab9d4a3 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -541,6 +541,8 @@ static int
 nfsd(void *vrqstp)
 {
         struct svc_rqst *rqstp = (struct svc_rqst *) vrqstp;
+        struct svc_xprt *perm_sock = list_entry(rqstp->rq_server->sv_permsocks.next, typeof(struct svc_xprt), xpt_list);
+        struct net *net = perm_sock->xpt_net;
         int err;
 
         /* Lock module and set up kernel thread */
@@ -605,7 +607,7 @@ out:
         /* Release the thread */
         svc_exit_thread(rqstp);
 
-        nfsd_destroy(&init_net);
+        nfsd_destroy(net);
 
         /* Release module */
         mutex_unlock(&nfsd_mutex);