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SUNRPC: another pmap wakeup fix 

Don't wake up bind waiters if a task finds that another task is already
trying to bind.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2006-11-16 15:03:38 -05:00 committed by Trond Myklebust
parent a18030445f
commit 2b577f1f14
1 changed files with 6 additions and 5 deletions
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11
net/sunrpc/pmap_clnt.c
View File

@ -101,14 +101,14 @@ void rpc_getport(struct rpc_task *task)
/* Autobind on cloned rpc clients is discouraged */
BUG_ON(clnt->cl_parent != clnt);
status = -EACCES; /* tell caller to check again */
if (xprt_test_and_set_binding(xprt))
goto bailout_nowake;
/* Put self on queue before sending rpcbind request, in case
* pmap_getport_done completes before we return from rpc_run_task */
rpc_sleep_on(&xprt->binding, task, NULL, NULL);
status = -EACCES; /* tell caller to check again */
if (xprt_test_and_set_binding(xprt))
goto bailout_nofree;
/* Someone else may have bound if we slept */
status = 0;
if (xprt_bound(xprt))
@ -143,8 +143,9 @@ bailout:
pmap_map_free(map);
xprt_put(xprt);
bailout_nofree:
task->tk_status = status;
pmap_wake_portmap_waiters(xprt, status);
bailout_nowake:
task->tk_status = status;
}
#ifdef CONFIG_ROOT_NFS