#ifndef _NFSD4_STATE_H
#define _NFSD4_STATE_H
+#include <linux/sunrpc/svc_xprt.h>
#include <linux/nfsd/nfsfh.h>
#include "nfsfh.h"
(s)->si_fileid, \
(s)->si_generation
-struct nfsd4_cb_sequence {
- /* args/res */
- u32 cbs_minorversion;
- struct nfs4_client *cbs_clp;
-};
-
-struct nfs4_rpc_args {
- void *args_op;
- struct nfsd4_cb_sequence args_seq;
-};
-
struct nfsd4_callback {
- struct nfs4_rpc_args cb_args;
+ void *cb_op;
+ struct nfs4_client *cb_clp;
+ struct list_head cb_per_client;
+ u32 cb_minorversion;
+ struct rpc_message cb_msg;
+ const struct rpc_call_ops *cb_ops;
struct work_struct cb_work;
+ bool cb_done;
};
struct nfs4_delegation {
atomic_t dl_count; /* ref count */
struct nfs4_client *dl_client;
struct nfs4_file *dl_file;
- struct file_lock *dl_flock;
u32 dl_type;
time_t dl_time;
/* For recall: */
- u32 dl_ident;
stateid_t dl_stateid;
struct knfsd_fh dl_fh;
int dl_retries;
struct nfs4_cb_conn {
/* SETCLIENTID info */
struct sockaddr_storage cb_addr;
+ struct sockaddr_storage cb_saddr;
size_t cb_addrlen;
- u32 cb_prog;
- u32 cb_minorversion;
+ u32 cb_prog; /* used only in 4.0 case;
+ per-session otherwise */
u32 cb_ident; /* minorversion 0 only */
struct svc_xprt *cb_xprt; /* minorversion 1 only */
};
u32 gid;
};
+struct nfsd4_bind_conn_to_session {
+ struct nfs4_sessionid sessionid;
+ u32 dir;
+};
+
/* The single slot clientid cache structure */
struct nfsd4_clid_slot {
u32 sl_seqid;
struct nfsd4_create_session sl_cr_ses;
};
+struct nfsd4_conn {
+ struct list_head cn_persession;
+ struct svc_xprt *cn_xprt;
+ struct svc_xpt_user cn_xpt_user;
+ struct nfsd4_session *cn_session;
+/* CDFC4_FORE, CDFC4_BACK: */
+ unsigned char cn_flags;
+};
+
struct nfsd4_session {
struct kref se_ref;
struct list_head se_hash; /* hash by sessionid */
struct nfs4_sessionid se_sessionid;
struct nfsd4_channel_attrs se_fchannel;
struct nfsd4_channel_attrs se_bchannel;
+ struct list_head se_conns;
+ u32 se_cb_prog;
+ u32 se_cb_seq_nr;
struct nfsd4_slot *se_slots[]; /* forward channel slots */
};
clientid_t cl_clientid; /* generated by server */
nfs4_verifier cl_confirm; /* generated by server */
u32 cl_firststate; /* recovery dir creation */
+ u32 cl_minorversion;
/* for v4.0 and v4.1 callbacks: */
struct nfs4_cb_conn cl_cb_conn;
+#define NFSD4_CLIENT_CB_UPDATE 1
+#define NFSD4_CLIENT_KILL 2
+ unsigned long cl_cb_flags;
struct rpc_clnt *cl_cb_client;
- atomic_t cl_cb_set;
+ u32 cl_cb_ident;
+#define NFSD4_CB_UP 0
+#define NFSD4_CB_UNKNOWN 1
+#define NFSD4_CB_DOWN 2
+ int cl_cb_state;
+ struct nfsd4_callback cl_cb_null;
+ struct nfsd4_session *cl_cb_session;
+ struct list_head cl_callbacks; /* list of in-progress callbacks */
+
+ /* for all client information that callback code might need: */
+ spinlock_t cl_lock;
/* for nfs41 */
struct list_head cl_sessions;
struct nfsd4_clid_slot cl_cs_slot; /* create_session slot */
u32 cl_exchange_flags;
- struct nfs4_sessionid cl_sessionid;
/* number of rpc's in progress over an associated session: */
atomic_t cl_refcount;
/* for nfs41 callbacks */
/* We currently support a single back channel with a single slot */
unsigned long cl_cb_slot_busy;
- u32 cl_cb_seq_nr;
struct rpc_wait_queue cl_cb_waitq; /* backchannel callers may */
/* wait here for slots */
};
struct list_head fi_delegations;
/* One each for O_RDONLY, O_WRONLY, O_RDWR: */
struct file * fi_fds[3];
- /* One each for O_RDONLY, O_WRONLY: */
- atomic_t fi_access[2];
/*
- * Each open stateid contributes 1 to either fi_readers or
- * fi_writers, or both, depending on the open mode. A
- * delegation also takes an fi_readers reference. Lock
- * stateid's take none.
+ * Each open or lock stateid contributes 1 to either
+ * fi_access[O_RDONLY], fi_access[O_WRONLY], or both, depending
+ * on open or lock mode:
*/
- atomic_t fi_readers;
- atomic_t fi_writers;
+ atomic_t fi_access[2];
+ struct file *fi_deleg_file;
+ struct file_lock *fi_lease;
+ atomic_t fi_delegees;
struct inode *fi_inode;
u32 fi_id; /* used with stateowner->so_id
* for stateid_hashtbl hash */
#define WR_STATE 0x00000020
#define CLOSE_STATE 0x00000040
-#define seqid_mutating_err(err) \
- (((err) != nfserr_stale_clientid) && \
- ((err) != nfserr_bad_seqid) && \
- ((err) != nfserr_stale_stateid) && \
- ((err) != nfserr_bad_stateid))
-
struct nfsd4_compound_state;
extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
extern __be32 nfs4_check_open_reclaim(clientid_t *clid);
extern void nfs4_free_stateowner(struct kref *kref);
extern int set_callback_cred(void);
-extern void nfsd4_probe_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
+extern void nfsd4_probe_callback(struct nfs4_client *clp);
+extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
+extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
extern void nfsd4_do_callback_rpc(struct work_struct *);
extern void nfsd4_cb_recall(struct nfs4_delegation *dp);
extern int nfsd4_create_callback_queue(void);
extern void nfsd4_destroy_callback_queue(void);
-extern void nfsd4_set_callback_client(struct nfs4_client *, struct rpc_clnt *);
+extern void nfsd4_shutdown_callback(struct nfs4_client *);
extern void nfs4_put_delegation(struct nfs4_delegation *dp);
extern __be32 nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname);
extern void nfsd4_init_recdir(char *recdir_name);
projects / firefly-linux-kernel-4.4.55.git / blobdiff