nfsd: fix nfsd4_cb_recall_done error handling

For any error that is not EBADHANDLE or NFS4ERR_BAD_STATEID,
nfsd4_cb_recall_done first marks the connection down, then
retries until dl_retries hits zero, then marks the connection down
again and sets cb_done.  This changes the code to only retry
for EBADHANDLE or NFS4ERR_BAD_STATEID, and factors setting
cb_done into a single point in the function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index e0be57b..795e218 100644 (file)
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -874,24 +874,21 @@ static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
                return;
        switch (task->tk_status) {
        case 0:
-               cb->cb_done = true;
-               return;
+               break;
        case -EBADHANDLE:
        case -NFS4ERR_BAD_STATEID:
                /* Race: client probably got cb_recall
                 * before open reply granting delegation */
-               break;
+               if (dp->dl_retries--) {
+                       rpc_delay(task, 2*HZ);
+                       task->tk_status = 0;
+                       rpc_restart_call_prepare(task);
+                       return;
+               }
        default:
                /* Network partition? */
                nfsd4_mark_cb_down(clp, task->tk_status);
        }
-       if (dp->dl_retries--) {
-               rpc_delay(task, 2*HZ);
-               task->tk_status = 0;
-               rpc_restart_call_prepare(task);
-               return;
-       }
-       nfsd4_mark_cb_down(clp, task->tk_status);
        cb->cb_done = true;
 }