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Diffstat (limited to 'include/linux/nfsd/state.h')
-rw-r--r--include/linux/nfsd/state.h84
1 files changed, 73 insertions, 11 deletions
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 128298c0362d..4d61c873feed 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -66,8 +66,7 @@ struct nfs4_cb_recall {
u32 cbr_ident;
int cbr_trunc;
stateid_t cbr_stateid;
- u32 cbr_fhlen;
- char cbr_fhval[NFS4_FHSIZE];
+ struct knfsd_fh cbr_fh;
struct nfs4_delegation *cbr_dp;
};
@@ -86,8 +85,7 @@ struct nfs4_delegation {
};
#define dl_stateid dl_recall.cbr_stateid
-#define dl_fhlen dl_recall.cbr_fhlen
-#define dl_fhval dl_recall.cbr_fhval
+#define dl_fh dl_recall.cbr_fh
/* client delegation callback info */
struct nfs4_callback {
@@ -101,6 +99,64 @@ struct nfs4_callback {
struct rpc_clnt * cb_client;
};
+/* Maximum number of slots per session. 128 is useful for long haul TCP */
+#define NFSD_MAX_SLOTS_PER_SESSION 128
+/* Maximum number of pages per slot cache entry */
+#define NFSD_PAGES_PER_SLOT 1
+/* Maximum number of operations per session compound */
+#define NFSD_MAX_OPS_PER_COMPOUND 16
+
+struct nfsd4_cache_entry {
+ __be32 ce_status;
+ struct kvec ce_datav; /* encoded NFSv4.1 data in rq_res.head[0] */
+ struct page *ce_respages[NFSD_PAGES_PER_SLOT + 1];
+ int ce_cachethis;
+ short ce_resused;
+ int ce_opcnt;
+ int ce_rpchdrlen;
+};
+
+struct nfsd4_slot {
+ bool sl_inuse;
+ u32 sl_seqid;
+ struct nfsd4_cache_entry sl_cache_entry;
+};
+
+struct nfsd4_session {
+ struct kref se_ref;
+ struct list_head se_hash; /* hash by sessionid */
+ struct list_head se_perclnt;
+ u32 se_flags;
+ struct nfs4_client *se_client; /* for expire_client */
+ struct nfs4_sessionid se_sessionid;
+ u32 se_fmaxreq_sz;
+ u32 se_fmaxresp_sz;
+ u32 se_fmaxresp_cached;
+ u32 se_fmaxops;
+ u32 se_fnumslots;
+ struct nfsd4_slot se_slots[]; /* forward channel slots */
+};
+
+static inline void
+nfsd4_put_session(struct nfsd4_session *ses)
+{
+ extern void free_session(struct kref *kref);
+ kref_put(&ses->se_ref, free_session);
+}
+
+static inline void
+nfsd4_get_session(struct nfsd4_session *ses)
+{
+ kref_get(&ses->se_ref);
+}
+
+/* formatted contents of nfs4_sessionid */
+struct nfsd4_sessionid {
+ clientid_t clientid;
+ u32 sequence;
+ u32 reserved;
+};
+
#define HEXDIR_LEN 33 /* hex version of 16 byte md5 of cl_name plus '\0' */
/*
@@ -132,6 +188,12 @@ struct nfs4_client {
struct nfs4_callback cl_callback; /* callback info */
atomic_t cl_count; /* ref count */
u32 cl_firststate; /* recovery dir creation */
+
+ /* for nfs41 */
+ struct list_head cl_sessions;
+ struct nfsd4_slot cl_slot; /* create_session slot */
+ u32 cl_exchange_flags;
+ struct nfs4_sessionid cl_sessionid;
};
/* struct nfs4_client_reset
@@ -168,8 +230,7 @@ struct nfs4_replay {
unsigned int rp_buflen;
char *rp_buf;
unsigned intrp_allocated;
- int rp_openfh_len;
- char rp_openfh[NFS4_FHSIZE];
+ struct knfsd_fh rp_openfh;
char rp_ibuf[NFSD4_REPLAY_ISIZE];
};
@@ -217,7 +278,7 @@ struct nfs4_stateowner {
* share_acces, share_deny on the file.
*/
struct nfs4_file {
- struct kref fi_ref;
+ atomic_t fi_ref;
struct list_head fi_hash; /* hash by "struct inode *" */
struct list_head fi_stateids;
struct list_head fi_delegations;
@@ -259,14 +320,13 @@ struct nfs4_stateid {
};
/* flags for preprocess_seqid_op() */
-#define CHECK_FH 0x00000001
+#define HAS_SESSION 0x00000001
#define CONFIRM 0x00000002
#define OPEN_STATE 0x00000004
#define LOCK_STATE 0x00000008
#define RD_STATE 0x00000010
#define WR_STATE 0x00000020
#define CLOSE_STATE 0x00000040
-#define DELEG_RET 0x00000080
#define seqid_mutating_err(err) \
(((err) != nfserr_stale_clientid) && \
@@ -274,7 +334,9 @@ struct nfs4_stateid {
((err) != nfserr_stale_stateid) && \
((err) != nfserr_bad_stateid))
-extern __be32 nfs4_preprocess_stateid_op(struct svc_fh *current_fh,
+struct nfsd4_compound_state;
+
+extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
stateid_t *stateid, int flags, struct file **filp);
extern void nfs4_lock_state(void);
extern void nfs4_unlock_state(void);
@@ -290,7 +352,7 @@ extern void nfsd4_init_recdir(char *recdir_name);
extern int nfsd4_recdir_load(void);
extern void nfsd4_shutdown_recdir(void);
extern int nfs4_client_to_reclaim(const char *name);
-extern int nfs4_has_reclaimed_state(const char *name);
+extern int nfs4_has_reclaimed_state(const char *name, bool use_exchange_id);
extern void nfsd4_recdir_purge_old(void);
extern int nfsd4_create_clid_dir(struct nfs4_client *clp);
extern void nfsd4_remove_clid_dir(struct nfs4_client *clp);