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SUNRPC: new interface to force an RPC rebind

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We'd like to hide fields in rpc_xprt and rpc_clnt from upper layer protocols.
 Start by creating an API to force RPC rebind, replacing logic that simply
 sets cl_port to zero.

 Test-plan:
 Destructive testing (unplugging the network temporarily).  Connectathon
 with UDP and TCP.  NFSv2/3 and NFSv4 mounting should be carefully checked.
 Probably need to rig a server where certain services aren't running, or
 that returns an error for some typical operation.

 Signed-off-by: Chuck Lever <[email protected]>
 Signed-off-by: Trond Myklebust <[email protected]>
This commit is contained in:
Chuck Lever 2006-01-03 09:55:50 +01:00 • committed by Trond Myklebust
commit 35f5a422ce
3 changed files with 18 additions and 8 deletions
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4
fs/lockd/host.c
View file

@ -177,7 +177,7 @@ nlm_bind_host(struct nlm_host *host)
if ((clnt = host->h_rpcclnt) != NULL) {
xprt = clnt->cl_xprt;
if (time_after_eq(jiffies, host->h_nextrebind)) {
clnt->cl_port = 0;
rpc_force_rebind(clnt);
host->h_nextrebind = jiffies + NLM_HOST_REBIND;
dprintk("lockd: next rebind in %ld jiffies\n",
host->h_nextrebind - jiffies);
@ -217,7 +217,7 @@ nlm_rebind_host(struct nlm_host *host)
{
dprintk("lockd: rebind host %s\n", host->h_name);
if (host->h_rpcclnt && time_after_eq(jiffies, host->h_nextrebind)) {
host->h_rpcclnt->cl_port = 0;
rpc_force_rebind(host->h_rpcclnt);
host->h_nextrebind = jiffies + NLM_HOST_REBIND;
}
}