diff options
Diffstat (limited to 'include/linux/lockd/bind.h')
| -rw-r--r-- | include/linux/lockd/bind.h | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h index 4d24d64578c4..c53c81242e72 100644 --- a/include/linux/lockd/bind.h +++ b/include/linux/lockd/bind.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/include/linux/lockd/bind.h * @@ -18,6 +19,8 @@ /* Dummy declarations */ struct svc_rqst; +struct rpc_task; +struct rpc_clnt; /* * This is the set of functions for lockd->nfsd communication @@ -25,11 +28,12 @@ struct svc_rqst; struct nlmsvc_binding { __be32 (*fopen)(struct svc_rqst *, struct nfs_fh *, - struct file **); + struct file **, + int mode); void (*fclose)(struct file *); }; -extern struct nlmsvc_binding * nlmsvc_ops; +extern const struct nlmsvc_binding *nlmsvc_ops; /* * Similar to nfs_client_initdata, but without the NFS-specific @@ -43,6 +47,8 @@ struct nlmclnt_initdata { u32 nfs_version; int noresvport; struct net *net; + const struct nlmclnt_operations *nlmclnt_ops; + const struct cred *cred; }; /* @@ -51,10 +57,29 @@ struct nlmclnt_initdata { extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init); extern void nlmclnt_done(struct nlm_host *host); +extern struct rpc_clnt *nlmclnt_rpc_clnt(struct nlm_host *host); -extern int nlmclnt_proc(struct nlm_host *host, int cmd, - struct file_lock *fl); -extern int lockd_up(struct net *net); +/* + * NLM client operations provide a means to modify RPC processing of NLM + * requests. Callbacks receive a pointer to data passed into the call to + * nlmclnt_proc(). + */ +struct nlmclnt_operations { + /* Called on successful allocation of nlm_rqst, use for allocation or + * reference counting. */ + void (*nlmclnt_alloc_call)(void *); + + /* Called in rpc_task_prepare for unlock. A return value of true + * indicates the callback has put the task to sleep on a waitqueue + * and NLM should not call rpc_call_start(). */ + bool (*nlmclnt_unlock_prepare)(struct rpc_task*, void *); + + /* Called when the nlm_rqst is freed, callbacks should clean up here */ + void (*nlmclnt_release_call)(void *); +}; + +extern int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, void *data); +extern int lockd_up(struct net *net, const struct cred *cred); extern void lockd_down(struct net *net); #endif /* LINUX_LOCKD_BIND_H */ |