netdev - [PATCH net-next nfs 1/6] net: Convert rpcsec_gss_net

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Message-ID: <152093815494.8636.6607369744413088370.stgit@localhost.localdomain>
Date:   Tue, 13 Mar 2018 13:49:15 +0300
From:   Kirill Tkhai <ktkhai@...tuozzo.com>
To:     davem@...emloft.net, trond.myklebust@...marydata.com,
        anna.schumaker@...app.com, bfields@...ldses.org,
        jlayton@...nel.org, dhowells@...hat.com, ktkhai@...tuozzo.com,
        keescook@...omium.org, dwindsor@...il.com, ishkamiel@...il.com,
        elena.reshetova@...el.com, linux-nfs@...r.kernel.org,
        linux-afs@...ts.infradead.org, netdev@...r.kernel.org
Subject: [PATCH net-next nfs 1/6] net: Convert rpcsec_gss_net_ops

These pernet_operations initialize and destroy sunrpc_net_id
refered per-net items. Only used global list is cache_list,
and accesses already serialized.

sunrpc_destroy_cache_detail() check for list_empty() without
cache_list_lock, but when it's called from unregister_pernet_subsys(),
there can't be callers in parallel, so we won't miss list_empty()
in this case.

Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
---
 net/sunrpc/auth_gss/auth_gss.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 9463af4b32e8..44f939cb6bc8 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -2063,6 +2063,7 @@ static __net_exit void rpcsec_gss_exit_net(struct net *net)
 static struct pernet_operations rpcsec_gss_net_ops = {
 	.init = rpcsec_gss_init_net,
 	.exit = rpcsec_gss_exit_net,
+	.async = true,
 };
 
 /*