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>
This commit is contained in:
parent
a4dff1bc49
commit
7aab449e5a
|
@ -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;
|
||||
|
|
Loading…
Reference in a new issue