[PATCH 3.4 60/88] nfsd: pass proper net to nfsd_destroy() from NFSd kthreads

[Greg Kroah-Hartman]

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx>

commit 88c47666171989ed4c5b1a5687df09511e8c5e35 upstream.

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@xxxxxxxxxxxxx>
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
[wengmeiling: backport to 3.4: adjust context]
Signed-off-by: Weng Meiling <wengmeiling.weng@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/nfsd/nfssvc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -483,6 +483,8 @@ 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, preverr = 0;
 
 	/* Lock module and set up kernel thread */
@@ -557,7 +559,7 @@ out:
 	/* Release the thread */
 	svc_exit_thread(rqstp);
 
-	nfsd_destroy(&init_net);
+	nfsd_destroy(net);
 
 	/* Release module */
 	mutex_unlock(&nfsd_mutex);


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