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NLM/lockd: Ensure that nlmclnt_cancel() returns results of the CANCEL call

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Currently, it returns success as long as the RPC call was sent. We'd like
to know if the CANCEL operation succeeded on the server.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2008-04-02 14:40:53 -04:00
parent 8ec7ff7444
commit 6b4b3a752b
1 changed files with 10 additions and 1 deletions
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11
fs/lockd/clntproc.c
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@ -699,6 +699,10 @@ static const struct rpc_call_ops nlmclnt_unlock_ops = {
static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl)
{
struct nlm_rqst *req;
int status;
dprintk("lockd: blocking lock attempt was interrupted by a signal.\n"
" Attempting to cancel lock.\n");
req = nlm_alloc_call(nlm_get_host(host));
if (!req)
@ -708,7 +712,12 @@ static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl
nlmclnt_setlockargs(req, fl);
req->a_args.block = block;
return nlmclnt_async_call(req, NLMPROC_CANCEL, &nlmclnt_cancel_ops);
atomic_inc(&req->a_count);
status = nlmclnt_async_call(req, NLMPROC_CANCEL, &nlmclnt_cancel_ops);
if (status == 0 && req->a_res.status == nlm_lck_denied)
status = -ENOLCK;
nlm_release_call(req);
return status;
}
static void nlmclnt_cancel_callback(struct rpc_task *task, void *data)