nfsd4: move callback setup into session init code

The backchannel should  be associated with a session, it isn't really
global to the client.

We do, however, want a pointer global to the client which tracks which
session we're currently using for client-based callbacks.

This is a first step in that direction; for now, just reshuffling of
code with no significant change in behavior.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 8d5e2370cce0..6e63c1d272bf 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -234,6 +234,7 @@ struct nfs4_client {
         u32                     cl_cb_ident;
         atomic_t                cl_cb_set;
         struct nfsd4_callback   cl_cb_null;
+        struct nfsd4_session    *cl_cb_session;
 
         /* for all client information that callback code might need: */
         spinlock_t              cl_lock;