X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fnfs%2Fnfs4_fs.h;h=61bc3a32e1e25780c4b9aa896814e22945fc2842;hb=b64aec8d1e1d8482a7b6cca60c8105c756bf1fe4;hp=4a1c4d80a577fc41fd5d3d68cf66673f6d27c0e3;hpb=003707c7225dbd4bf879b6c204743554de0a08d6;p=safe%2Fjmp%2Flinux-2.6 diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 4a1c4d8..61bc3a3 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -38,8 +38,13 @@ struct idmap; ((err) != NFSERR_NOFILEHANDLE)) enum nfs4_client_state { - NFS4CLNT_STATE_RECOVER = 0, + NFS4CLNT_MANAGER_RUNNING = 0, + NFS4CLNT_CHECK_LEASE, NFS4CLNT_LEASE_EXPIRED, + NFS4CLNT_RECLAIM_REBOOT, + NFS4CLNT_RECLAIM_NOGRACE, + NFS4CLNT_DELEGRETURN, + NFS4CLNT_SESSION_SETUP, }; /* @@ -83,18 +88,25 @@ struct nfs_unique_id { struct nfs4_state_owner { struct nfs_unique_id so_owner_id; struct nfs_client *so_client; + struct nfs_server *so_server; struct rb_node so_client_node; struct rpc_cred *so_cred; /* Associated cred */ spinlock_t so_lock; atomic_t so_count; + unsigned long so_flags; struct list_head so_states; struct list_head so_delegations; struct nfs_seqid_counter so_seqid; struct rpc_sequence so_sequence; }; +enum { + NFS_OWNER_RECLAIM_REBOOT, + NFS_OWNER_RECLAIM_NOGRACE +}; + /* * struct nfs4_state maintains the client-side state for a given * (state_owner,inode) tuple (OPEN) or state_owner (LOCK). @@ -114,6 +126,7 @@ struct nfs4_lock_state { #define NFS_LOCK_INITIALIZED 1 int ls_flags; struct nfs_seqid_counter ls_seqid; + struct rpc_sequence ls_sequence; struct nfs_unique_id ls_id; nfs4_stateid ls_stateid; atomic_t ls_count; @@ -126,6 +139,8 @@ enum { NFS_O_RDONLY_STATE, /* OPEN stateid has read-only state */ NFS_O_WRONLY_STATE, /* OPEN stateid has write-only state */ NFS_O_RDWR_STATE, /* OPEN stateid has read/write state */ + NFS_STATE_RECLAIM_REBOOT, /* OPEN stateid server rebooted */ + NFS_STATE_RECLAIM_NOGRACE, /* OPEN stateid needs to recover state */ }; struct nfs4_state { @@ -139,13 +154,15 @@ struct nfs4_state { unsigned long flags; /* Do we hold any locks? */ spinlock_t state_lock; /* Protects the lock_states list */ + seqlock_t seqlock; /* Protects the stateid/open_stateid */ nfs4_stateid stateid; /* Current stateid: may be delegation */ nfs4_stateid open_stateid; /* OPEN stateid */ + /* The following 3 fields are protected by owner->so_lock */ unsigned int n_rdonly; /* Number of read-only references */ unsigned int n_wronly; /* Number of write-only references */ unsigned int n_rdwr; /* Number of read/write references */ - int state; /* State on the server (R,W, or RW) */ + fmode_t state; /* State on the server (R,W, or RW) */ atomic_t count; }; @@ -153,14 +170,25 @@ struct nfs4_state { struct nfs4_exception { long timeout; int retry; + struct nfs4_state *state; }; struct nfs4_state_recovery_ops { + int owner_flag_bit; + int state_flag_bit; int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *); int (*recover_lock)(struct nfs4_state *, struct file_lock *); + int (*establish_clid)(struct nfs_client *, struct rpc_cred *); + struct rpc_cred * (*get_clid_cred)(struct nfs_client *); +}; + +struct nfs4_state_maintenance_ops { + int (*sched_state_renewal)(struct nfs_client *, struct rpc_cred *); + struct rpc_cred * (*get_state_renewal_cred_locked)(struct nfs_client *); + int (*renew_lease)(struct nfs_client *, struct rpc_cred *); }; -extern struct dentry_operations nfs4_dentry_operations; +extern const struct dentry_operations nfs4_dentry_operations; extern const struct inode_operations nfs4_dir_inode_operations; /* inode.c */ @@ -170,20 +198,38 @@ extern ssize_t nfs4_listxattr(struct dentry *, char *, size_t); /* nfs4proc.c */ -extern int nfs4_map_errors(int err); extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *); extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct rpc_cred *); extern int nfs4_proc_async_renew(struct nfs_client *, struct rpc_cred *); extern int nfs4_proc_renew(struct nfs_client *, struct rpc_cred *); -extern int nfs4_do_close(struct path *path, struct nfs4_state *state); +extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *); +extern int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait); extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *); extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *); extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle); -extern int nfs4_proc_fs_locations(struct inode *dir, struct qstr *name, +extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, struct nfs4_fs_locations *fs_locations, struct page *page); -extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops; -extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops; +extern struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[]; +extern struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[]; +#if defined(CONFIG_NFS_V4_1) +extern int nfs4_setup_sequence(struct nfs_client *clp, + struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, + int cache_reply, struct rpc_task *task); +extern void nfs4_destroy_session(struct nfs4_session *session); +extern struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp); +extern int nfs4_proc_create_session(struct nfs_client *, int reset); +extern int nfs4_proc_destroy_session(struct nfs4_session *); +#else /* CONFIG_NFS_v4_1 */ +static inline int nfs4_setup_sequence(struct nfs_client *clp, + struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, + int cache_reply, struct rpc_task *task) +{ + return 0; +} +#endif /* CONFIG_NFS_V4_1 */ + +extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[]; extern const u32 nfs4_fattr_bitmap[2]; extern const u32 nfs4_statfs_bitmap[2]; @@ -198,16 +244,23 @@ extern void nfs4_kill_renewd(struct nfs_client *); extern void nfs4_renew_state(struct work_struct *); /* nfs4state.c */ -struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp); +struct rpc_cred *nfs4_get_setclientid_cred(struct nfs_client *clp); +struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp); +#if defined(CONFIG_NFS_V4_1) +struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp); +struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp); +#endif /* CONFIG_NFS_V4_1 */ extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *); extern void nfs4_put_state_owner(struct nfs4_state_owner *); -extern void nfs4_drop_state_owner(struct nfs4_state_owner *); extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *); extern void nfs4_put_open_state(struct nfs4_state *); -extern void nfs4_close_state(struct path *, struct nfs4_state *, mode_t); -extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t); +extern void nfs4_close_state(struct path *, struct nfs4_state *, fmode_t); +extern void nfs4_close_sync(struct path *, struct nfs4_state *, fmode_t); +extern void nfs4_state_set_mode_locked(struct nfs4_state *, fmode_t); extern void nfs4_schedule_state_recovery(struct nfs_client *); +extern void nfs4_schedule_state_manager(struct nfs_client *); +extern int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state); extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp); extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl); extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t); @@ -232,6 +285,7 @@ extern struct svc_version nfs4_callback_version1; #else #define nfs4_close_state(a, b, c) do { } while (0) +#define nfs4_close_sync(a, b, c) do { } while (0) #endif /* CONFIG_NFS_V4 */ #endif /* __LINUX_FS_NFS_NFS4_FS.H */