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authorStanislav Kinsbursky <skinsbursky@parallels.com>2012-04-20 18:19:18 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-04-27 14:09:59 -0400
commit7aab449e5a2ebfa9c5116e87e16536bc4195e4de (patch)
treec948a96ddd87c2ed708875c961c9e3577737ae08 /net/sunrpc/clnt.c
parenta4dff1bc492ee4a2184d384ae8b5bcab5859e150 (diff)
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SUNRPC: skip clients with program without PipeFS entries
1) This is sane. 2) Otherwise there will be soft lockup: do { rpc_get_client_for_event (clnt->cl_dentry == NULL ==> choose) __rpc_pipefs_event (clnt->cl_program->pipe_dir_name == NULL ==> return) } while (1) Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/clnt.c')
-rw-r--r--net/sunrpc/clnt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index d10ebc4310f..8a19849ff34 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -184,8 +184,6 @@ static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event,
switch (event) {
case RPC_PIPEFS_MOUNT:
- if (clnt->cl_program->pipe_dir_name == NULL)
- break;
dentry = rpc_setup_pipedir_sb(sb, clnt,
clnt->cl_program->pipe_dir_name);
BUG_ON(dentry == NULL);
@@ -215,6 +213,8 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event)
spin_lock(&sn->rpc_client_lock);
list_for_each_entry(clnt, &sn->all_clients, cl_clients) {
+ if (clnt->cl_program->pipe_dir_name == NULL)
+ break;
if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) ||
((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry))
continue;