[PATCH] NFS: Header file cleanup...

 - Move NFSv4 state definitions into a private header file.
 - Clean up gunk in nfs_fs.h

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 0 insertions, 241 deletions

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index dbac7f363e5d..fb33e7655cfa 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -15,7 +15,6 @@
 #include <linux/pagemap.h>
 #include <linux/rwsem.h>
 #include <linux/wait.h>
-#include <linux/uio.h>
 
 #include <linux/nfs_fs_sb.h>
 
@@ -29,7 +28,6 @@
 #include <linux/nfs4.h>
 #include <linux/nfs_xdr.h>
 #include <linux/rwsem.h>
-#include <linux/workqueue.h>
 #include <linux/mempool.h>
 
 /*
@@ -44,13 +42,6 @@
 #define NFS_DEF_FILE_IO_BUFFER_SIZE     4096
 
 /*
- * The upper limit on timeouts for the exponential backoff algorithm.
- */
-#define NFS_WRITEBACK_DELAY             (5*HZ)
-#define NFS_WRITEBACK_LOCKDELAY         (60*HZ)
-#define NFS_COMMIT_DELAY                (5*HZ)
-
-/*
  * superblock magic number for NFS
  */
 #define NFS_SUPER_MAGIC                 0x6969
@@ -60,9 +51,6 @@
  */
 #define NFS_RPC_SWAPFLAGS               (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS)
 
-#define NFS_RW_SYNC             0x0001  /* O_SYNC handling */
-#define NFS_RW_SWAP             0x0002  /* This is a swap request */
-
 /*
  * When flushing a cluster of dirty pages, there can be different
  * strategies:
@@ -434,11 +422,6 @@ static inline void nfs_writedata_free(struct nfs_write_data *p)
         mempool_free(p, nfs_wdata_mempool);
 }
 
-/* Hack for future NFS swap support */
-#ifndef IS_SWAPFILE
-# define IS_SWAPFILE(inode)     (0)
-#endif
-
 /*
  * linux/fs/nfs/read.c
  */
@@ -515,230 +498,6 @@ extern void * nfs_root_data(void);
 
 #define NFS_JUKEBOX_RETRY_TIME (5 * HZ)
 
-#ifdef CONFIG_NFS_V4
-
-struct idmap;
-
-/*
- * In a seqid-mutating op, this macro controls which error return
- * values trigger incrementation of the seqid.
- *
- * from rfc 3010:
- * The client MUST monotonically increment the sequence number for the
- * CLOSE, LOCK, LOCKU, OPEN, OPEN_CONFIRM, and OPEN_DOWNGRADE
- * operations.  This is true even in the event that the previous
- * operation that used the sequence number received an error.  The only
- * exception to this rule is if the previous operation received one of
- * the following errors: NFSERR_STALE_CLIENTID, NFSERR_STALE_STATEID,
- * NFSERR_BAD_STATEID, NFSERR_BAD_SEQID, NFSERR_BADXDR,
- * NFSERR_RESOURCE, NFSERR_NOFILEHANDLE.
- *
- */
-#define seqid_mutating_err(err)       \
-(((err) != NFSERR_STALE_CLIENTID) &&  \
- ((err) != NFSERR_STALE_STATEID)  &&  \
- ((err) != NFSERR_BAD_STATEID)    &&  \
- ((err) != NFSERR_BAD_SEQID)      &&  \
- ((err) != NFSERR_BAD_XDR)        &&  \
- ((err) != NFSERR_RESOURCE)       &&  \
- ((err) != NFSERR_NOFILEHANDLE))
-
-enum nfs4_client_state {
-        NFS4CLNT_OK  = 0,
-};
-
-/*
- * The nfs4_client identifies our client state to the server.
- */
-struct nfs4_client {
-        struct list_head        cl_servers;     /* Global list of servers */
-        struct in_addr          cl_addr;        /* Server identifier */
-        u64                     cl_clientid;    /* constant */
-        nfs4_verifier           cl_confirm;
-        unsigned long           cl_state;
-
-        u32                     cl_lockowner_id;
-
-        /*
-         * The following rwsem ensures exclusive access to the server
-         * while we recover the state following a lease expiration.
-         */
-        struct rw_semaphore     cl_sem;
-
-        struct list_head        cl_delegations;
-        struct list_head        cl_state_owners;
-        struct list_head        cl_unused;
-        int                     cl_nunused;
-        spinlock_t              cl_lock;
-        atomic_t                cl_count;
-
-        struct rpc_clnt *       cl_rpcclient;
-        struct rpc_cred *       cl_cred;
-
-        struct list_head        cl_superblocks; /* List of nfs_server structs */
-
-        unsigned long           cl_lease_time;
-        unsigned long           cl_last_renewal;
-        struct work_struct      cl_renewd;
-        struct work_struct      cl_recoverd;
-
-        wait_queue_head_t       cl_waitq;
-        struct rpc_wait_queue   cl_rpcwaitq;
-
-        /* used for the setclientid verifier */
-        struct timespec         cl_boot_time;
-
-        /* idmapper */
-        struct idmap *          cl_idmap;
-
-        /* Our own IP address, as a null-terminated string.
-         * This is used to generate the clientid, and the callback address.
-         */
-        char                    cl_ipaddr[16];
-        unsigned char           cl_id_uniquifier;
-};
-
-/*
- * NFS4 state_owners and lock_owners are simply labels for ordered
- * sequences of RPC calls. Their sole purpose is to provide once-only
- * semantics by allowing the server to identify replayed requests.
- *
- * The ->so_sema is held during all state_owner seqid-mutating operations:
- * OPEN, OPEN_DOWNGRADE, and CLOSE. Its purpose is to properly serialize
- * so_seqid.
- */
-struct nfs4_state_owner {
-        struct list_head     so_list;    /* per-clientid list of state_owners */
-        struct nfs4_client   *so_client;
-        u32                  so_id;      /* 32-bit identifier, unique */
-        struct semaphore     so_sema;
-        u32                  so_seqid;   /* protected by so_sema */
-        atomic_t             so_count;
-
-        struct rpc_cred      *so_cred;   /* Associated cred */
-        struct list_head     so_states;
-        struct list_head     so_delegations;
-};
-
-/*
- * struct nfs4_state maintains the client-side state for a given
- * (state_owner,inode) tuple (OPEN) or state_owner (LOCK).
- *
- * OPEN:
- * In order to know when to OPEN_DOWNGRADE or CLOSE the state on the server,
- * we need to know how many files are open for reading or writing on a
- * given inode. This information too is stored here.
- *
- * LOCK: one nfs4_state (LOCK) to hold the lock stateid nfs4_state(OPEN)
- */
-
-struct nfs4_lock_state {
-        struct list_head        ls_locks;       /* Other lock stateids */
-        fl_owner_t              ls_owner;       /* POSIX lock owner */
-#define NFS_LOCK_INITIALIZED 1
-        int                     ls_flags;
-        u32                     ls_seqid;
-        u32                     ls_id;
-        nfs4_stateid            ls_stateid;
-        atomic_t                ls_count;
-};
-
-/* bits for nfs4_state->flags */
-enum {
-        LK_STATE_IN_USE,
-        NFS_DELEGATED_STATE,
-};
-
-struct nfs4_state {
-        struct list_head open_states;   /* List of states for the same state_owner */
-        struct list_head inode_states;  /* List of states for the same inode */
-        struct list_head lock_states;   /* List of subservient lock stateids */
-
-        struct nfs4_state_owner *owner; /* Pointer to the open owner */
-        struct inode *inode;            /* Pointer to the inode */
-
-        unsigned long flags;            /* Do we hold any locks? */
-        struct semaphore lock_sema;     /* Serializes file locking operations */
-        rwlock_t state_lock;            /* Protects the lock_states list */
-
-        nfs4_stateid stateid;
-
-        unsigned int nreaders;
-        unsigned int nwriters;
-        int state;                      /* State on the server (R,W, or RW) */
-        atomic_t count;
-};
-
-
-struct nfs4_exception {
-        long timeout;
-        int retry;
-};
-
-struct nfs4_state_recovery_ops {
-        int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *);
-        int (*recover_lock)(struct nfs4_state *, struct file_lock *);
-};
-
-extern struct dentry_operations nfs4_dentry_operations;
-extern struct inode_operations nfs4_dir_inode_operations;
-
-/* nfs4proc.c */
-extern int nfs4_map_errors(int err);
-extern int nfs4_proc_setclientid(struct nfs4_client *, u32, unsigned short);
-extern int nfs4_proc_setclientid_confirm(struct nfs4_client *);
-extern int nfs4_proc_async_renew(struct nfs4_client *);
-extern int nfs4_proc_renew(struct nfs4_client *);
-extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode);
-extern struct inode *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
-extern int nfs4_open_revalidate(struct inode *, struct dentry *, int);
-
-extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
-extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops;
-
-/* nfs4renewd.c */
-extern void nfs4_schedule_state_renewal(struct nfs4_client *);
-extern void nfs4_renewd_prepare_shutdown(struct nfs_server *);
-extern void nfs4_kill_renewd(struct nfs4_client *);
-
-/* nfs4state.c */
-extern void init_nfsv4_state(struct nfs_server *);
-extern void destroy_nfsv4_state(struct nfs_server *);
-extern struct nfs4_client *nfs4_get_client(struct in_addr *);
-extern void nfs4_put_client(struct nfs4_client *clp);
-extern int nfs4_init_client(struct nfs4_client *clp);
-extern struct nfs4_client *nfs4_find_client(struct in_addr *);
-extern u32 nfs4_alloc_lockowner_id(struct nfs4_client *);
-
-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 nfs4_state *, mode_t);
-extern struct nfs4_state *nfs4_find_state(struct inode *, struct rpc_cred *, mode_t mode);
-extern void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp);
-extern void nfs4_schedule_state_recovery(struct nfs4_client *);
-extern struct nfs4_lock_state *nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t);
-extern struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t);
-extern void nfs4_put_lock_state(struct nfs4_lock_state *state);
-extern void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *ls);
-extern void nfs4_notify_setlk(struct nfs4_state *, struct file_lock *, struct nfs4_lock_state *);
-extern void nfs4_notify_unlck(struct nfs4_state *, struct file_lock *, struct nfs4_lock_state *);
-extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
-
-
-
-struct nfs4_mount_data;
-#else
-#define init_nfsv4_state(server)  do { } while (0)
-#define destroy_nfsv4_state(server)       do { } while (0)
-#define nfs4_put_state_owner(inode, owner) do { } while (0)
-#define nfs4_put_open_state(state) do { } while (0)
-#define nfs4_close_state(a, b) do { } while (0)
-#define nfs4_renewd_prepare_shutdown(server) do { } while (0)
-#endif
-
 #endif /* __KERNEL__ */
 
 /*