diff options
| -rw-r--r-- | fs/nfsd/nfs4callback.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index c94768b096a3..24534db87e86 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -1243,6 +1243,12 @@ static struct nfsd4_conn * __nfsd4_find_backchannel(struct nfs4_client *clp) return NULL; } +/* + * Note there isn't a lot of locking in this code; instead we depend on + * the fact that it is run from the callback_wq, which won't run two + * work items at once. So, for example, callback_wq handles all access + * of cl_cb_client and all calls to rpc_create or rpc_shutdown_client. + */ static void nfsd4_process_cb_update(struct nfsd4_callback *cb) { struct nfs4_cb_conn conn; |