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Merge branch 'for-2.6.32' of git://linux-nfs.org/~bfields/linux

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* 'for-2.6.32' of git://linux-nfs.org/~bfields/linux: (68 commits)
  nfsd4: nfsv4 clients should cross mountpoints
  nfsd: revise 4.1 status documentation
  sunrpc/cache: avoid variable over-loading in cache_defer_req
  sunrpc/cache: use list_del_init for the list_head entries in cache_deferred_req
  nfsd: return success for non-NFS4 nfs4_state_start
  nfsd41: Refactor create_client()
  nfsd41: modify nfsd4.1 backchannel to use new xprt class
  nfsd41: Backchannel: Implement cb_recall over NFSv4.1
  nfsd41: Backchannel: cb_sequence callback
  nfsd41: Backchannel: Setup sequence information
  nfsd41: Backchannel: Server backchannel RPC wait queue
  nfsd41: Backchannel: Add sequence arguments to callback RPC arguments
  nfsd41: Backchannel: callback infrastructure
  nfsd4: use common rpc_cred for all callbacks
  nfsd4: allow nfs4 state startup to fail
  SUNRPC: Defer the auth_gss upcall when the RPC call is asynchronous
  nfsd4: fix null dereference creating nfsv4 callback client
  nfsd4: fix whitespace in NFSPROC4_CLNT_CB_NULL definition
  nfsd41: sunrpc: add new xprt class for nfsv4.1 backchannel
  sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked.
  ...
This commit is contained in:
Linus Torvalds
2009-09-22 07:54:33 -07:00
parent 342ff1a1b5 3c394ddaa7
commit a87e84b5cd
42 changed files with 1640 additions and 897 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
include/linux/lockd/lockd.h
View File

@@ -338,49 +338,6 @@ static inline int nlm_privileged_requester(const struct svc_rqst *rqstp)
}
}
static inline int __nlm_cmp_addr4(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
const struct sockaddr_in *sin1 = (const struct sockaddr_in *)sap1;
const struct sockaddr_in *sin2 = (const struct sockaddr_in *)sap2;
return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sap1;
const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
}
#else /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
return 0;
}
#endif /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
/*
* Compare two host addresses
*
* Return TRUE if the addresses are the same; otherwise FALSE.
*/
static inline int nlm_cmp_addr(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
if (sap1->sa_family == sap2->sa_family) {
switch (sap1->sa_family) {
case AF_INET:
return __nlm_cmp_addr4(sap1, sap2);
case AF_INET6:
return __nlm_cmp_addr6(sap1, sap2);
}
}
return 0;
}
/*
* Compare two NLM locks.
* When the second lock is of type F_UNLCK, this acts like a wildcard.

2
include/linux/nfs4.h
View File

@@ -234,7 +234,7 @@ enum nfs_opnum4 {
Needs to be updated if more operations are defined in future.*/
#define FIRST_NFS4_OP OP_ACCESS
#define LAST_NFS4_OP OP_RELEASE_LOCKOWNER
#define LAST_NFS4_OP OP_RECLAIM_COMPLETE
enum nfsstat4 {
NFS4_OK = 0,

7
include/linux/nfsd/nfsd.h
View File

@@ -56,6 +56,9 @@ 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;
@@ -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) { }

77
include/linux/nfsd/state.h
View File

@@ -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);

19
include/linux/nfsd/xdr4.h
View File

@@ -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)

4
include/linux/sunrpc/auth.h
View File

@@ -111,7 +111,7 @@ struct rpc_credops {
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
void (*crbind)(struct rpc_task *, struct rpc_cred *);
void (*crbind)(struct rpc_task *, struct rpc_cred *, int);
__be32 * (*crmarshal)(struct rpc_task *, __be32 *);
int (*crrefresh)(struct rpc_task *);
__be32 * (*crvalidate)(struct rpc_task *, __be32 *);
@@ -140,7 +140,7 @@ struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
void rpcauth_bindcred(struct rpc_task *, struct rpc_cred *, int);
void rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *);
void rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
void put_rpccred(struct rpc_cred *);
void rpcauth_unbindcred(struct rpc_task *);
__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);

114
include/linux/sunrpc/clnt.h
View File

@@ -22,6 +22,7 @@
#include <linux/sunrpc/timer.h>
#include <asm/signal.h>
#include <linux/path.h>
#include <net/ipv6.h>
struct rpc_inode;
@@ -113,6 +114,7 @@ struct rpc_create_args {
rpc_authflavor_t authflavor;
unsigned long flags;
char *client_name;
struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
};
/* Values for "flags" field */
@@ -188,5 +190,117 @@ static inline void rpc_set_port(struct sockaddr *sap,
#define IPV6_SCOPE_DELIMITER '%'
#define IPV6_SCOPE_ID_LEN sizeof("%nnnnnnnnnn")
static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
const struct sockaddr_in *sin1 = (const struct sockaddr_in *)sap1;
const struct sockaddr_in *sin2 = (const struct sockaddr_in *)sap2;
return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
}
static inline bool __rpc_copy_addr4(struct sockaddr *dst,
const struct sockaddr *src)
{
const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
dsin->sin_family = ssin->sin_family;
dsin->sin_addr.s_addr = ssin->sin_addr.s_addr;
return true;
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static inline bool __rpc_cmp_addr6(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sap1;
const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
}
static inline bool __rpc_copy_addr6(struct sockaddr *dst,
const struct sockaddr *src)
{
const struct sockaddr_in6 *ssin6 = (const struct sockaddr_in6 *) src;
struct sockaddr_in6 *dsin6 = (struct sockaddr_in6 *) dst;
dsin6->sin6_family = ssin6->sin6_family;
ipv6_addr_copy(&dsin6->sin6_addr, &ssin6->sin6_addr);
return true;
}
#else /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
static inline bool __rpc_cmp_addr6(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
return false;
}
static inline bool __rpc_copy_addr6(struct sockaddr *dst,
const struct sockaddr *src)
{
return false;
}
#endif /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
/**
* rpc_cmp_addr - compare the address portion of two sockaddrs.
* @sap1: first sockaddr
* @sap2: second sockaddr
*
* Just compares the family and address portion. Ignores port, scope, etc.
* Returns true if the addrs are equal, false if they aren't.
*/
static inline bool rpc_cmp_addr(const struct sockaddr *sap1,
const struct sockaddr *sap2)
{
if (sap1->sa_family == sap2->sa_family) {
switch (sap1->sa_family) {
case AF_INET:
return __rpc_cmp_addr4(sap1, sap2);
case AF_INET6:
return __rpc_cmp_addr6(sap1, sap2);
}
}
return false;
}
/**
* rpc_copy_addr - copy the address portion of one sockaddr to another
* @dst: destination sockaddr
* @src: source sockaddr
*
* Just copies the address portion and family. Ignores port, scope, etc.
* Caller is responsible for making certain that dst is large enough to hold
* the address in src. Returns true if address family is supported. Returns
* false otherwise.
*/
static inline bool rpc_copy_addr(struct sockaddr *dst,
const struct sockaddr *src)
{
switch (src->sa_family) {
case AF_INET:
return __rpc_copy_addr4(dst, src);
case AF_INET6:
return __rpc_copy_addr6(dst, src);
}
return false;
}
/**
* rpc_get_scope_id - return scopeid for a given sockaddr
* @sa: sockaddr to get scopeid from
*
* Returns the value of the sin6_scope_id for AF_INET6 addrs, or 0 if
* not an AF_INET6 address.
*/
static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
{
if (sa->sa_family != AF_INET6)
return 0;
return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
}
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */

2
include/linux/sunrpc/svc.h
View File

@@ -94,8 +94,6 @@ struct svc_serv {
struct module * sv_module; /* optional module to count when
* adding threads */
svc_thread_fn sv_function; /* main function for threads */
unsigned int sv_drc_max_pages; /* Total pages for DRC */
unsigned int sv_drc_pages_used;/* DRC pages used */
#if defined(CONFIG_NFS_V4_1)
struct list_head sv_cb_list; /* queue for callback requests
* that arrive over the same

1
include/linux/sunrpc/svc_xprt.h
View File

@@ -65,6 +65,7 @@ struct svc_xprt {
size_t xpt_locallen; /* length of address */
struct sockaddr_storage xpt_remote; /* remote peer's address */
size_t xpt_remotelen; /* length of address */
struct rpc_wait_queue xpt_bc_pending; /* backchannel wait queue */
};
int svc_reg_xprt_class(struct svc_xprt_class *);

1
include/linux/sunrpc/svcsock.h
View File

@@ -28,6 +28,7 @@ struct svc_sock {
/* private TCP part */
u32 sk_reclen; /* length of record */
u32 sk_tcplen; /* current read length */
struct rpc_xprt *sk_bc_xprt; /* NFSv4.1 backchannel xprt */
};
/*

19
include/linux/sunrpc/xprt.h
View File

@@ -124,6 +124,23 @@ struct rpc_xprt_ops {
void (*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq);
};
/*
* RPC transport identifiers
*
* To preserve compatibility with the historical use of raw IP protocol
* id's for transport selection, UDP and TCP identifiers are specified
* with the previous values. No such restriction exists for new transports,
* except that they may not collide with these values (17 and 6,
* respectively).
*/
#define XPRT_TRANSPORT_BC (1 << 31)
enum xprt_transports {
XPRT_TRANSPORT_UDP = IPPROTO_UDP,
XPRT_TRANSPORT_TCP = IPPROTO_TCP,
XPRT_TRANSPORT_BC_TCP = IPPROTO_TCP | XPRT_TRANSPORT_BC,
XPRT_TRANSPORT_RDMA = 256
};
struct rpc_xprt {
struct kref kref; /* Reference count */
struct rpc_xprt_ops * ops; /* transport methods */
@@ -179,6 +196,7 @@ struct rpc_xprt {
spinlock_t reserve_lock; /* lock slot table */
u32 xid; /* Next XID value to use */
struct rpc_task * snd_task; /* Task blocked in send */
struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
#if defined(CONFIG_NFS_V4_1)
struct svc_serv *bc_serv; /* The RPC service which will */
/* process the callback */
@@ -231,6 +249,7 @@ struct xprt_create {
struct sockaddr * srcaddr; /* optional local address */
struct sockaddr * dstaddr; /* remote peer address */
size_t addrlen;
struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
};
struct xprt_class {

5
include/linux/sunrpc/xprtrdma.h
View File

@@ -40,11 +40,6 @@
#ifndef _LINUX_SUNRPC_XPRTRDMA_H
#define _LINUX_SUNRPC_XPRTRDMA_H
/*
* RPC transport identifier for RDMA
*/
#define XPRT_TRANSPORT_RDMA 256
/*
* rpcbind (v3+) RDMA netid.
*/

11
include/linux/sunrpc/xprtsock.h
View File

@@ -12,17 +12,6 @@
int init_socket_xprt(void);
void cleanup_socket_xprt(void);
/*
* RPC transport identifiers for UDP, TCP
*
* To preserve compatibility with the historical use of raw IP protocol
* id's for transport selection, these are specified with the previous
* values. No such restriction exists for new transports, except that
* they may not collide with these values (17 and 6, respectively).
*/
#define XPRT_TRANSPORT_UDP IPPROTO_UDP
#define XPRT_TRANSPORT_TCP IPPROTO_TCP
/*
* RPC slot table sizes for UDP, TCP transports
*/