diff options
author | Jonathan Corbet <corbet@lwn.net> | 2017-05-18 10:19:33 -0600 |
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committer | Jonathan Corbet <corbet@lwn.net> | 2017-05-18 10:19:33 -0600 |
commit | a1a9af4e9d9ec65c22d3cfe449e0420d17dbedba (patch) | |
tree | 05bd08bb1987aa92b84b49b9ee4eee0ba3b2917f /include/linux/lockd/bind.h | |
parent | 25a0da73f24c95d57381bedd9cd89e4929b1bfde (diff) | |
parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) |
Merge tag 'v4.12-rc1' into docs-next
Linux 4.12-rc1
Diffstat (limited to 'include/linux/lockd/bind.h')
-rw-r--r-- | include/linux/lockd/bind.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h index 140edab64446..05728396a1a1 100644 --- a/include/linux/lockd/bind.h +++ b/include/linux/lockd/bind.h @@ -18,6 +18,7 @@ /* Dummy declarations */ struct svc_rqst; +struct rpc_task; /* * This is the set of functions for lockd->nfsd communication @@ -43,6 +44,7 @@ struct nlmclnt_initdata { u32 nfs_version; int noresvport; struct net *net; + const struct nlmclnt_operations *nlmclnt_ops; }; /* @@ -52,8 +54,26 @@ struct nlmclnt_initdata { extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init); extern void nlmclnt_done(struct nlm_host *host); -extern int nlmclnt_proc(struct nlm_host *host, int cmd, - struct file_lock *fl); +/* + * 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); extern void lockd_down(struct net *net); |