diff options
author | Paul Mundt <lethal@linux-sh.org> | 2011-01-13 15:06:28 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2011-01-13 15:06:28 +0900 |
commit | f43dc23d5ea91fca257be02138a255f02d98e806 (patch) | |
tree | b29722f6e965316e90ac97abf79923ced250dc21 /include/linux/nfsd/state.h | |
parent | f8e53553f452dcbf67cb89c8cba63a1cd6eb4cc0 (diff) | |
parent | 4162cf64973df51fc885825bc9ca4d055891c49f (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework
Conflicts:
arch/sh/kernel/cpu/sh2/setup-sh7619.c
arch/sh/kernel/cpu/sh2a/setup-mxg.c
arch/sh/kernel/cpu/sh2a/setup-sh7201.c
arch/sh/kernel/cpu/sh2a/setup-sh7203.c
arch/sh/kernel/cpu/sh2a/setup-sh7206.c
arch/sh/kernel/cpu/sh3/setup-sh7705.c
arch/sh/kernel/cpu/sh3/setup-sh770x.c
arch/sh/kernel/cpu/sh3/setup-sh7710.c
arch/sh/kernel/cpu/sh3/setup-sh7720.c
arch/sh/kernel/cpu/sh4/setup-sh4-202.c
arch/sh/kernel/cpu/sh4/setup-sh7750.c
arch/sh/kernel/cpu/sh4/setup-sh7760.c
arch/sh/kernel/cpu/sh4a/setup-sh7343.c
arch/sh/kernel/cpu/sh4a/setup-sh7366.c
arch/sh/kernel/cpu/sh4a/setup-sh7722.c
arch/sh/kernel/cpu/sh4a/setup-sh7723.c
arch/sh/kernel/cpu/sh4a/setup-sh7724.c
arch/sh/kernel/cpu/sh4a/setup-sh7763.c
arch/sh/kernel/cpu/sh4a/setup-sh7770.c
arch/sh/kernel/cpu/sh4a/setup-sh7780.c
arch/sh/kernel/cpu/sh4a/setup-sh7785.c
arch/sh/kernel/cpu/sh4a/setup-sh7786.c
arch/sh/kernel/cpu/sh4a/setup-shx3.c
arch/sh/kernel/cpu/sh5/setup-sh5.c
drivers/serial/sh-sci.c
drivers/serial/sh-sci.h
include/linux/serial_sci.h
Diffstat (limited to 'include/linux/nfsd/state.h')
-rw-r--r-- | include/linux/nfsd/state.h | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h deleted file mode 100644 index 57ab2ed08459..000000000000 --- a/include/linux/nfsd/state.h +++ /dev/null @@ -1,373 +0,0 @@ -/* - * linux/include/nfsd/state.h - * - * Copyright (c) 2001 The Regents of the University of Michigan. - * All rights reserved. - * - * Kendrick Smith <kmsmith@umich.edu> - * Andy Adamson <andros@umich.edu> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef _NFSD4_STATE_H -#define _NFSD4_STATE_H - -#include <linux/list.h> -#include <linux/kref.h> -#include <linux/sunrpc/clnt.h> - -typedef struct { - u32 cl_boot; - u32 cl_id; -} clientid_t; - -typedef struct { - u32 so_boot; - u32 so_stateownerid; - u32 so_fileid; -} stateid_opaque_t; - -typedef struct { - u32 si_generation; - stateid_opaque_t si_opaque; -} stateid_t; -#define si_boot si_opaque.so_boot -#define si_stateownerid si_opaque.so_stateownerid -#define si_fileid si_opaque.so_fileid - -struct nfs4_delegation { - struct list_head dl_perfile; - struct list_head dl_perclnt; - struct list_head dl_recall_lru; /* delegation recalled */ - atomic_t dl_count; /* ref count */ - struct nfs4_client *dl_client; - struct nfs4_file *dl_file; - struct file_lock *dl_flock; - struct file *dl_vfs_file; - u32 dl_type; - time_t dl_time; -/* For recall: */ - u32 dl_ident; - stateid_t dl_stateid; - struct knfsd_fh dl_fh; - int dl_retries; -}; - -/* client delegation callback info */ -struct nfs4_cb_conn { - /* SETCLIENTID info */ - u32 cb_addr; - unsigned short cb_port; - 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 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_channel_attrs { - u32 headerpadsz; - u32 maxreq_sz; - u32 maxresp_sz; - u32 maxresp_cached; - u32 maxops; - u32 maxreqs; - u32 nr_rdma_attrs; - u32 rdma_attrs; -}; - -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; - struct nfsd4_channel_attrs se_fchannel; - struct nfsd4_channel_attrs se_bchannel; - 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' */ - -/* - * struct nfs4_client - one per client. Clientids live here. - * o Each nfs4_client is hashed by clientid. - * - * o Each nfs4_clients is also hashed by name - * (the opaque quantity initially sent by the client to identify itself). - * - * o cl_perclient list is used to ensure no dangling stateowner references - * when we expire the nfs4_client - */ -struct nfs4_client { - struct list_head cl_idhash; /* hash by cl_clientid.id */ - struct list_head cl_strhash; /* hash by cl_name */ - struct list_head cl_openowners; - struct list_head cl_delegations; - struct list_head cl_lru; /* tail queue */ - struct xdr_netobj cl_name; /* id generated by 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 */ - u32 cl_flavor; /* setclientid pseudoflavor */ - char *cl_principal; /* setclientid principal name */ - struct svc_cred cl_cred; /* setclientid principal */ - clientid_t cl_clientid; /* generated by server */ - nfs4_verifier cl_confirm; /* generated by server */ - struct nfs4_cb_conn cl_cb_conn; /* 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 - * one per old client. Populates reset_str_hashtbl. Filled from conf_id_hashtbl - * upon lease reset, or from upcall to state_daemon (to read in state - * from non-volitile storage) upon reboot. - */ -struct nfs4_client_reclaim { - struct list_head cr_strhash; /* hash by cr_name */ - char cr_recdir[HEXDIR_LEN]; /* recover dir */ -}; - -static inline void -update_stateid(stateid_t *stateid) -{ - stateid->si_generation++; -} - -/* A reasonable value for REPLAY_ISIZE was estimated as follows: - * The OPEN response, typically the largest, requires - * 4(status) + 8(stateid) + 20(changeinfo) + 4(rflags) + 8(verifier) + - * 4(deleg. type) + 8(deleg. stateid) + 4(deleg. recall flag) + - * 20(deleg. space limit) + ~32(deleg. ace) = 112 bytes - */ - -#define NFSD4_REPLAY_ISIZE 112 - -/* - * Replay buffer, where the result of the last seqid-mutating operation - * is cached. - */ -struct nfs4_replay { - __be32 rp_status; - unsigned int rp_buflen; - char *rp_buf; - unsigned intrp_allocated; - struct knfsd_fh rp_openfh; - char rp_ibuf[NFSD4_REPLAY_ISIZE]; -}; - -/* -* nfs4_stateowner can either be an open_owner, or a lock_owner -* -* so_idhash: stateid_hashtbl[] for open owner, lockstateid_hashtbl[] -* for lock_owner -* so_strhash: ownerstr_hashtbl[] for open_owner, lock_ownerstr_hashtbl[] -* for lock_owner -* so_perclient: nfs4_client->cl_perclient entry - used when nfs4_client -* struct is reaped. -* so_perfilestate: heads the list of nfs4_stateid (either open or lock) -* and is used to ensure no dangling nfs4_stateid references when we -* release a stateowner. -* so_perlockowner: (open) nfs4_stateid->st_perlockowner entry - used when -* close is called to reap associated byte-range locks -* so_close_lru: (open) stateowner is placed on this list instead of being -* reaped (when so_perfilestate is empty) to hold the last close replay. -* reaped by laundramat thread after lease period. -*/ -struct nfs4_stateowner { - struct kref so_ref; - struct list_head so_idhash; /* hash by so_id */ - struct list_head so_strhash; /* hash by op_name */ - struct list_head so_perclient; - struct list_head so_stateids; - struct list_head so_perstateid; /* for lockowners only */ - struct list_head so_close_lru; /* tail queue */ - time_t so_time; /* time of placement on so_close_lru */ - int so_is_open_owner; /* 1=openowner,0=lockowner */ - u32 so_id; - struct nfs4_client * so_client; - /* after increment in ENCODE_SEQID_OP_TAIL, represents the next - * sequence id expected from the client: */ - u32 so_seqid; - struct xdr_netobj so_owner; /* open owner name */ - int so_confirmed; /* successful OPEN_CONFIRM? */ - struct nfs4_replay so_replay; -}; - -/* -* nfs4_file: a file opened by some number of (open) nfs4_stateowners. -* o fi_perfile list is used to search for conflicting -* share_acces, share_deny on the file. -*/ -struct nfs4_file { - atomic_t fi_ref; - struct list_head fi_hash; /* hash by "struct inode *" */ - struct list_head fi_stateids; - struct list_head fi_delegations; - struct inode *fi_inode; - u32 fi_id; /* used with stateowner->so_id - * for stateid_hashtbl hash */ - bool fi_had_conflict; -}; - -/* -* nfs4_stateid can either be an open stateid or (eventually) a lock stateid -* -* (open)nfs4_stateid: one per (open)nfs4_stateowner, nfs4_file -* -* st_hash: stateid_hashtbl[] entry or lockstateid_hashtbl entry -* st_perfile: file_hashtbl[] entry. -* st_perfile_state: nfs4_stateowner->so_perfilestate -* st_perlockowner: (open stateid) list of lock nfs4_stateowners -* st_access_bmap: used only for open stateid -* st_deny_bmap: used only for open stateid -* st_openstp: open stateid lock stateid was derived from -* -* XXX: open stateids and lock stateids have diverged sufficiently that -* we should consider defining separate structs for the two cases. -*/ - -struct nfs4_stateid { - struct list_head st_hash; - struct list_head st_perfile; - struct list_head st_perstateowner; - struct list_head st_lockowners; - struct nfs4_stateowner * st_stateowner; - struct nfs4_file * st_file; - stateid_t st_stateid; - struct file * st_vfs_file; - unsigned long st_access_bmap; - unsigned long st_deny_bmap; - struct nfs4_stateid * st_openstp; -}; - -/* flags for preprocess_seqid_op() */ -#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 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, - stateid_t *stateid, int flags, struct file **filp); -extern void nfs4_lock_state(void); -extern void nfs4_unlock_state(void); -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 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); -extern __be32 nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname); -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, 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); - -static inline void -nfs4_put_stateowner(struct nfs4_stateowner *so) -{ - kref_put(&so->so_ref, nfs4_free_stateowner); -} - -static inline void -nfs4_get_stateowner(struct nfs4_stateowner *so) -{ - kref_get(&so->so_ref); -} - -#endif /* NFSD4_STATE_H */ |