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 <[email protected]>
---
fs/lockd/clntproc.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 5f13e03..ea1a694 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -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)