summaryrefslogtreecommitdiffstats
path: root/include/linux/nfsd
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/nfsd')
-rw-r--r--include/linux/nfsd/nfsd.h9
-rw-r--r--include/linux/nfsd/state.h77
-rw-r--r--include/linux/nfsd/xdr4.h19
3 files changed, 63 insertions, 42 deletions
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 2b49d676d0c..510ffdd5020 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -56,8 +56,11 @@ extern struct svc_version nfsd_version2, nfsd_version3,
extern u32 nfsd_supported_minorversion;
extern struct mutex nfsd_mutex;
extern struct svc_serv *nfsd_serv;
+extern spinlock_t nfsd_drc_lock;
+extern unsigned int nfsd_drc_max_mem;
+extern unsigned int nfsd_drc_mem_used;
-extern struct seq_operations nfs_exports_op;
+extern const struct seq_operations nfs_exports_op;
/*
* Function prototypes.
@@ -163,7 +166,7 @@ extern int nfsd_max_blksize;
extern unsigned int max_delegations;
int nfs4_state_init(void);
void nfsd4_free_slabs(void);
-void nfs4_state_start(void);
+int nfs4_state_start(void);
void nfs4_state_shutdown(void);
time_t nfs4_lease_time(void);
void nfs4_reset_lease(time_t leasetime);
@@ -171,7 +174,7 @@ int nfs4_reset_recoverydir(char *recdir);
#else
static inline int nfs4_state_init(void) { return 0; }
static inline void nfsd4_free_slabs(void) { }
-static inline void nfs4_state_start(void) { }
+static inline int nfs4_state_start(void) { return 0; }
static inline void nfs4_state_shutdown(void) { }
static inline time_t nfs4_lease_time(void) { return 0; }
static inline void nfs4_reset_lease(time_t leasetime) { }
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 57ab2ed0845..b38d1132418 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -60,6 +60,12 @@ typedef struct {
#define si_stateownerid si_opaque.so_stateownerid
#define si_fileid si_opaque.so_fileid
+struct nfsd4_cb_sequence {
+ /* args/res */
+ u32 cbs_minorversion;
+ struct nfs4_client *cbs_clp;
+};
+
struct nfs4_delegation {
struct list_head dl_perfile;
struct list_head dl_perclnt;
@@ -81,38 +87,35 @@ struct nfs4_delegation {
/* client delegation callback info */
struct nfs4_cb_conn {
/* SETCLIENTID info */
- u32 cb_addr;
- unsigned short cb_port;
+ struct sockaddr_storage cb_addr;
+ size_t cb_addrlen;
u32 cb_prog;
u32 cb_minorversion;
u32 cb_ident; /* minorversion 0 only */
/* RPC client info */
atomic_t cb_set; /* successful CB_NULL call */
struct rpc_clnt * cb_client;
- struct rpc_cred * cb_cred;
};
-/* 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 slots per session. 160 is useful for long haul TCP */
+#define NFSD_MAX_SLOTS_PER_SESSION 160
/* 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;
-};
+/* Maximum session per slot cache size */
+#define NFSD_SLOT_CACHE_SIZE 1024
+/* Maximum number of NFSD_SLOT_CACHE_SIZE slots per session */
+#define NFSD_CACHE_SIZE_SLOTS_PER_SESSION 32
+#define NFSD_MAX_MEM_PER_SESSION \
+ (NFSD_CACHE_SIZE_SLOTS_PER_SESSION * NFSD_SLOT_CACHE_SIZE)
struct nfsd4_slot {
- bool sl_inuse;
- u32 sl_seqid;
- struct nfsd4_cache_entry sl_cache_entry;
+ bool sl_inuse;
+ bool sl_cachethis;
+ u16 sl_opcnt;
+ u32 sl_seqid;
+ __be32 sl_status;
+ u32 sl_datalen;
+ char sl_data[];
};
struct nfsd4_channel_attrs {
@@ -126,6 +129,25 @@ struct nfsd4_channel_attrs {
u32 rdma_attrs;
};
+struct nfsd4_create_session {
+ clientid_t clientid;
+ struct nfs4_sessionid sessionid;
+ u32 seqid;
+ u32 flags;
+ struct nfsd4_channel_attrs fore_channel;
+ struct nfsd4_channel_attrs back_channel;
+ u32 callback_prog;
+ u32 uid;
+ u32 gid;
+};
+
+/* The single slot clientid cache structure */
+struct nfsd4_clid_slot {
+ u32 sl_seqid;
+ __be32 sl_status;
+ struct nfsd4_create_session sl_cr_ses;
+};
+
struct nfsd4_session {
struct kref se_ref;
struct list_head se_hash; /* hash by sessionid */
@@ -135,7 +157,7 @@ struct nfsd4_session {
struct nfs4_sessionid se_sessionid;
struct nfsd4_channel_attrs se_fchannel;
struct nfsd4_channel_attrs se_bchannel;
- struct nfsd4_slot se_slots[]; /* forward channel slots */
+ struct nfsd4_slot *se_slots[]; /* forward channel slots */
};
static inline void
@@ -180,7 +202,7 @@ struct nfs4_client {
char cl_recdir[HEXDIR_LEN]; /* recovery dir */
nfs4_verifier cl_verifier; /* generated by client */
time_t cl_time; /* time of last lease renewal */
- __be32 cl_addr; /* client ipaddress */
+ struct sockaddr_storage cl_addr; /* client ipaddress */
u32 cl_flavor; /* setclientid pseudoflavor */
char *cl_principal; /* setclientid principal name */
struct svc_cred cl_cred; /* setclientid principal */
@@ -192,9 +214,17 @@ struct nfs4_client {
/* for nfs41 */
struct list_head cl_sessions;
- struct nfsd4_slot cl_slot; /* create_session slot */
+ struct nfsd4_clid_slot cl_cs_slot; /* create_session slot */
u32 cl_exchange_flags;
struct nfs4_sessionid cl_sessionid;
+
+ /* 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 svc_xprt *cl_cb_xprt; /* 4.1 callback transport */
+ struct rpc_wait_queue cl_cb_waitq; /* backchannel callers may */
+ /* wait here for slots */
};
/* struct nfs4_client_reset
@@ -345,6 +375,7 @@ extern int nfs4_in_grace(void);
extern __be32 nfs4_check_open_reclaim(clientid_t *clid);
extern void put_nfs4_client(struct nfs4_client *clp);
extern void nfs4_free_stateowner(struct kref *kref);
+extern int set_callback_cred(void);
extern void nfsd4_probe_callback(struct nfs4_client *clp);
extern void nfsd4_cb_recall(struct nfs4_delegation *dp);
extern void nfs4_put_delegation(struct nfs4_delegation *dp);
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 2bacf753506..73164c2b3d2 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -51,7 +51,7 @@ struct nfsd4_compound_state {
/* For sessions DRC */
struct nfsd4_session *session;
struct nfsd4_slot *slot;
- __be32 *statp;
+ __be32 *datap;
size_t iovlen;
u32 minorversion;
u32 status;
@@ -366,18 +366,6 @@ struct nfsd4_exchange_id {
int spa_how;
};
-struct nfsd4_create_session {
- clientid_t clientid;
- struct nfs4_sessionid sessionid;
- u32 seqid;
- u32 flags;
- struct nfsd4_channel_attrs fore_channel;
- struct nfsd4_channel_attrs back_channel;
- u32 callback_prog;
- u32 uid;
- u32 gid;
-};
-
struct nfsd4_sequence {
struct nfs4_sessionid sessionid; /* request/response */
u32 seqid; /* request/response */
@@ -479,13 +467,12 @@ struct nfsd4_compoundres {
static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
{
struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
- return args->opcnt == 1;
+ return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
}
static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
{
- return !resp->cstate.slot->sl_cache_entry.ce_cachethis ||
- nfsd4_is_solo_sequence(resp);
+ return !resp->cstate.slot->sl_cachethis || nfsd4_is_solo_sequence(resp);
}
#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-21 13:35:14 +0000