nfsd4: allow nfs4 state startup to fail
[safe/jmp/linux-2.6] / include / linux / nfsd / nfsd.h
index d0d4aae..24fdf89 100644 (file)
@@ -12,7 +12,6 @@
 
 #include <linux/types.h>
 #include <linux/unistd.h>
-#include <linux/dirent.h>
 #include <linux/fs.h>
 #include <linux/posix_acl.h>
 #include <linux/mount.h>
 #include <linux/nfsd/debug.h>
 #include <linux/nfsd/nfsfh.h>
 #include <linux/nfsd/export.h>
-#include <linux/nfsd/auth.h>
 #include <linux/nfsd/stats.h>
-#include <linux/nfsd/interface.h>
 /*
  * nfsd version
  */
-#define NFSD_VERSION           "0.5"
-#define NFSD_SUPPORTED_MINOR_VERSION   0
+#define NFSD_SUPPORTED_MINOR_VERSION   1
 
-#ifdef __KERNEL__
 /*
- * Special flags for nfsd_permission. These must be different from MAY_READ,
- * MAY_WRITE, and MAY_EXEC.
+ * Flags for nfsd_permission
  */
-#define MAY_NOP                        0
-#define MAY_SATTR              8
-#define MAY_TRUNC              16
-#define MAY_LOCK               32
-#define MAY_OWNER_OVERRIDE     64
-#define        MAY_LOCAL_ACCESS        128 /* IRIX doing local access check on device special file*/
-#if (MAY_SATTR | MAY_TRUNC | MAY_LOCK | MAY_OWNER_OVERRIDE | MAY_LOCAL_ACCESS) & (MAY_READ | MAY_WRITE | MAY_EXEC)
-# error "please use a different value for MAY_SATTR or MAY_TRUNC or MAY_LOCK or MAY_LOCAL_ACCESS or MAY_OWNER_OVERRIDE."
-#endif
-#define MAY_CREATE             (MAY_EXEC|MAY_WRITE)
-#define MAY_REMOVE             (MAY_EXEC|MAY_WRITE|MAY_TRUNC)
+#define NFSD_MAY_NOP           0
+#define NFSD_MAY_EXEC          1 /* == MAY_EXEC */
+#define NFSD_MAY_WRITE         2 /* == MAY_WRITE */
+#define NFSD_MAY_READ          4 /* == MAY_READ */
+#define NFSD_MAY_SATTR         8
+#define NFSD_MAY_TRUNC         16
+#define NFSD_MAY_LOCK          32
+#define NFSD_MAY_OWNER_OVERRIDE        64
+#define NFSD_MAY_LOCAL_ACCESS  128 /* IRIX doing local access check on device special file*/
+#define NFSD_MAY_BYPASS_GSS_ON_ROOT 256
+
+#define NFSD_MAY_CREATE                (NFSD_MAY_EXEC|NFSD_MAY_WRITE)
+#define NFSD_MAY_REMOVE                (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
 
 /*
  * Callback function for readdir
  */
 struct readdir_cd {
-       int                     err;    /* 0, nfserr, or nfserr_eof */
+       __be32                  err;    /* 0, nfserr, or nfserr_eof */
 };
-typedef int            (*encode_dent_fn)(struct readdir_cd *, const char *,
-                                               int, loff_t, ino_t, unsigned int);
 typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
 
 extern struct svc_program      nfsd_program;
 extern struct svc_version      nfsd_version2, nfsd_version3,
                                nfsd_version4;
+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;
+
 /*
  * Function prototypes.
  */
 int            nfsd_svc(unsigned short port, int nrservs);
-int            nfsd_dispatch(struct svc_rqst *rqstp, u32 *statp);
+int            nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp);
+
+int            nfsd_nrthreads(void);
+int            nfsd_nrpools(void);
+int            nfsd_get_nrthreads(int n, int *);
+int            nfsd_set_nrthreads(int n, int *);
 
 /* nfsd/vfs.c */
 int            fh_lock_parent(struct svc_fh *, struct dentry *);
@@ -72,57 +79,61 @@ int         nfsd_racache_init(int);
 void           nfsd_racache_shutdown(void);
 int            nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
                                struct svc_export **expp);
-int            nfsd_lookup(struct svc_rqst *, struct svc_fh *,
-                               const char *, int, struct svc_fh *);
-int            nfsd_setattr(struct svc_rqst *, struct svc_fh *,
+__be32         nfsd_lookup(struct svc_rqst *, struct svc_fh *,
+                               const char *, unsigned int, struct svc_fh *);
+__be32          nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *,
+                               const char *, unsigned int,
+                               struct svc_export **, struct dentry **);
+__be32         nfsd_setattr(struct svc_rqst *, struct svc_fh *,
                                struct iattr *, int, time_t);
 #ifdef CONFIG_NFSD_V4
-int             nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
+__be32          nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
                     struct nfs4_acl *);
 int             nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **);
 #endif /* CONFIG_NFSD_V4 */
-int            nfsd_create(struct svc_rqst *, struct svc_fh *,
+__be32         nfsd_create(struct svc_rqst *, struct svc_fh *,
                                char *name, int len, struct iattr *attrs,
                                int type, dev_t rdev, struct svc_fh *res);
 #ifdef CONFIG_NFSD_V3
-int            nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
-int            nfsd_create_v3(struct svc_rqst *, struct svc_fh *,
+__be32         nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
+__be32         nfsd_create_v3(struct svc_rqst *, struct svc_fh *,
                                char *name, int len, struct iattr *attrs,
                                struct svc_fh *res, int createmode,
-                               u32 *verifier, int *truncp);
-int            nfsd_commit(struct svc_rqst *, struct svc_fh *,
+                               u32 *verifier, int *truncp, int *created);
+__be32         nfsd_commit(struct svc_rqst *, struct svc_fh *,
                                loff_t, unsigned long);
 #endif /* CONFIG_NFSD_V3 */
-int            nfsd_open(struct svc_rqst *, struct svc_fh *, int,
+__be32         nfsd_open(struct svc_rqst *, struct svc_fh *, int,
                                int, struct file **);
 void           nfsd_close(struct file *);
-int            nfsd_read(struct svc_rqst *, struct svc_fh *, struct file *,
+__be32                 nfsd_read(struct svc_rqst *, struct svc_fh *, struct file *,
                                loff_t, struct kvec *, int, unsigned long *);
-int            nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
-                               loff_t, struct kvec *,int, unsigned long, int *);
-int            nfsd_readlink(struct svc_rqst *, struct svc_fh *,
+__be32                 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
+                               loff_t, struct kvec *,int, unsigned long *, int *);
+__be32         nfsd_readlink(struct svc_rqst *, struct svc_fh *,
                                char *, int *);
-int            nfsd_symlink(struct svc_rqst *, struct svc_fh *,
+__be32         nfsd_symlink(struct svc_rqst *, struct svc_fh *,
                                char *name, int len, char *path, int plen,
                                struct svc_fh *res, struct iattr *);
-int            nfsd_link(struct svc_rqst *, struct svc_fh *,
+__be32         nfsd_link(struct svc_rqst *, struct svc_fh *,
                                char *, int, struct svc_fh *);
-int            nfsd_rename(struct svc_rqst *,
+__be32         nfsd_rename(struct svc_rqst *,
                                struct svc_fh *, char *, int,
                                struct svc_fh *, char *, int);
-int            nfsd_remove(struct svc_rqst *,
+__be32         nfsd_remove(struct svc_rqst *,
                                struct svc_fh *, char *, int);
-int            nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
+__be32         nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
                                char *name, int len);
 int            nfsd_truncate(struct svc_rqst *, struct svc_fh *,
                                unsigned long size);
-int            nfsd_readdir(struct svc_rqst *, struct svc_fh *,
-                            loff_t *, struct readdir_cd *, encode_dent_fn);
-int            nfsd_statfs(struct svc_rqst *, struct svc_fh *,
-                               struct kstatfs *);
+__be32         nfsd_readdir(struct svc_rqst *, struct svc_fh *,
+                            loff_t *, struct readdir_cd *, filldir_t);
+__be32         nfsd_statfs(struct svc_rqst *, struct svc_fh *,
+                               struct kstatfs *, int access);
 
 int            nfsd_notify_change(struct inode *, struct iattr *);
-int            nfsd_permission(struct svc_export *, struct dentry *, int);
+__be32         nfsd_permission(struct svc_rqst *, struct svc_export *,
+                               struct dentry *, int);
 int            nfsd_sync_dir(struct dentry *dp);
 
 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
@@ -142,6 +153,7 @@ int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
 
 enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
 int nfsd_vers(int vers, enum vers_op change);
+int nfsd_minorversion(u32 minorversion, enum vers_op change);
 void nfsd_reset_versions(void);
 int nfsd_create_serv(void);
 
@@ -151,19 +163,22 @@ extern int nfsd_max_blksize;
  * NFSv4 State
  */
 #ifdef CONFIG_NFSD_V4
-void nfs4_state_init(void);
+extern unsigned int max_delegations;
+int nfs4_state_init(void);
+void nfsd4_free_slabs(void);
 int nfs4_state_start(void);
 void nfs4_state_shutdown(void);
 time_t nfs4_lease_time(void);
 void nfs4_reset_lease(time_t leasetime);
 int nfs4_reset_recoverydir(char *recdir);
 #else
-static inline void nfs4_state_init(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){}
-static inline int nfs4_reset_recoverydir(char *recdir) {return 0;}
+static inline int nfs4_state_init(void) { return 0; }
+static inline void nfsd4_free_slabs(void) { }
+static inline int nfs4_state_start(void) { }
+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) { }
+static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
 #endif
 
 /*
@@ -176,76 +191,119 @@ void             nfsd_lockd_shutdown(void);
 /*
  * These macros provide pre-xdr'ed values for faster operation.
  */
-#define        nfs_ok                  __constant_htonl(NFS_OK)
-#define        nfserr_perm             __constant_htonl(NFSERR_PERM)
-#define        nfserr_noent            __constant_htonl(NFSERR_NOENT)
-#define        nfserr_io               __constant_htonl(NFSERR_IO)
-#define        nfserr_nxio             __constant_htonl(NFSERR_NXIO)
-#define        nfserr_eagain           __constant_htonl(NFSERR_EAGAIN)
-#define        nfserr_acces            __constant_htonl(NFSERR_ACCES)
-#define        nfserr_exist            __constant_htonl(NFSERR_EXIST)
-#define        nfserr_xdev             __constant_htonl(NFSERR_XDEV)
-#define        nfserr_nodev            __constant_htonl(NFSERR_NODEV)
-#define        nfserr_notdir           __constant_htonl(NFSERR_NOTDIR)
-#define        nfserr_isdir            __constant_htonl(NFSERR_ISDIR)
-#define        nfserr_inval            __constant_htonl(NFSERR_INVAL)
-#define        nfserr_fbig             __constant_htonl(NFSERR_FBIG)
-#define        nfserr_nospc            __constant_htonl(NFSERR_NOSPC)
-#define        nfserr_rofs             __constant_htonl(NFSERR_ROFS)
-#define        nfserr_mlink            __constant_htonl(NFSERR_MLINK)
-#define        nfserr_opnotsupp        __constant_htonl(NFSERR_OPNOTSUPP)
-#define        nfserr_nametoolong      __constant_htonl(NFSERR_NAMETOOLONG)
-#define        nfserr_notempty         __constant_htonl(NFSERR_NOTEMPTY)
-#define        nfserr_dquot            __constant_htonl(NFSERR_DQUOT)
-#define        nfserr_stale            __constant_htonl(NFSERR_STALE)
-#define        nfserr_remote           __constant_htonl(NFSERR_REMOTE)
-#define        nfserr_wflush           __constant_htonl(NFSERR_WFLUSH)
-#define        nfserr_badhandle        __constant_htonl(NFSERR_BADHANDLE)
-#define        nfserr_notsync          __constant_htonl(NFSERR_NOT_SYNC)
-#define        nfserr_badcookie        __constant_htonl(NFSERR_BAD_COOKIE)
-#define        nfserr_notsupp          __constant_htonl(NFSERR_NOTSUPP)
-#define        nfserr_toosmall         __constant_htonl(NFSERR_TOOSMALL)
-#define        nfserr_serverfault      __constant_htonl(NFSERR_SERVERFAULT)
-#define        nfserr_badtype          __constant_htonl(NFSERR_BADTYPE)
-#define        nfserr_jukebox          __constant_htonl(NFSERR_JUKEBOX)
-#define        nfserr_denied           __constant_htonl(NFSERR_DENIED)
-#define        nfserr_deadlock         __constant_htonl(NFSERR_DEADLOCK)
-#define nfserr_expired          __constant_htonl(NFSERR_EXPIRED)
-#define        nfserr_bad_cookie       __constant_htonl(NFSERR_BAD_COOKIE)
-#define        nfserr_same             __constant_htonl(NFSERR_SAME)
-#define        nfserr_clid_inuse       __constant_htonl(NFSERR_CLID_INUSE)
-#define        nfserr_stale_clientid   __constant_htonl(NFSERR_STALE_CLIENTID)
-#define        nfserr_resource         __constant_htonl(NFSERR_RESOURCE)
-#define        nfserr_moved            __constant_htonl(NFSERR_MOVED)
-#define        nfserr_nofilehandle     __constant_htonl(NFSERR_NOFILEHANDLE)
-#define        nfserr_minor_vers_mismatch      __constant_htonl(NFSERR_MINOR_VERS_MISMATCH)
-#define nfserr_share_denied    __constant_htonl(NFSERR_SHARE_DENIED)
-#define nfserr_stale_stateid   __constant_htonl(NFSERR_STALE_STATEID)
-#define nfserr_old_stateid     __constant_htonl(NFSERR_OLD_STATEID)
-#define nfserr_bad_stateid     __constant_htonl(NFSERR_BAD_STATEID)
-#define nfserr_bad_seqid       __constant_htonl(NFSERR_BAD_SEQID)
-#define        nfserr_symlink          __constant_htonl(NFSERR_SYMLINK)
-#define        nfserr_not_same         __constant_htonl(NFSERR_NOT_SAME)
-#define        nfserr_restorefh        __constant_htonl(NFSERR_RESTOREFH)
-#define        nfserr_attrnotsupp      __constant_htonl(NFSERR_ATTRNOTSUPP)
-#define        nfserr_bad_xdr          __constant_htonl(NFSERR_BAD_XDR)
-#define        nfserr_openmode         __constant_htonl(NFSERR_OPENMODE)
-#define        nfserr_locks_held       __constant_htonl(NFSERR_LOCKS_HELD)
-#define        nfserr_op_illegal       __constant_htonl(NFSERR_OP_ILLEGAL)
-#define        nfserr_grace            __constant_htonl(NFSERR_GRACE)
-#define        nfserr_no_grace         __constant_htonl(NFSERR_NO_GRACE)
-#define        nfserr_reclaim_bad      __constant_htonl(NFSERR_RECLAIM_BAD)
-#define        nfserr_badname          __constant_htonl(NFSERR_BADNAME)
-#define        nfserr_cb_path_down     __constant_htonl(NFSERR_CB_PATH_DOWN)
-#define        nfserr_locked           __constant_htonl(NFSERR_LOCKED)
+#define        nfs_ok                  cpu_to_be32(NFS_OK)
+#define        nfserr_perm             cpu_to_be32(NFSERR_PERM)
+#define        nfserr_noent            cpu_to_be32(NFSERR_NOENT)
+#define        nfserr_io               cpu_to_be32(NFSERR_IO)
+#define        nfserr_nxio             cpu_to_be32(NFSERR_NXIO)
+#define        nfserr_eagain           cpu_to_be32(NFSERR_EAGAIN)
+#define        nfserr_acces            cpu_to_be32(NFSERR_ACCES)
+#define        nfserr_exist            cpu_to_be32(NFSERR_EXIST)
+#define        nfserr_xdev             cpu_to_be32(NFSERR_XDEV)
+#define        nfserr_nodev            cpu_to_be32(NFSERR_NODEV)
+#define        nfserr_notdir           cpu_to_be32(NFSERR_NOTDIR)
+#define        nfserr_isdir            cpu_to_be32(NFSERR_ISDIR)
+#define        nfserr_inval            cpu_to_be32(NFSERR_INVAL)
+#define        nfserr_fbig             cpu_to_be32(NFSERR_FBIG)
+#define        nfserr_nospc            cpu_to_be32(NFSERR_NOSPC)
+#define        nfserr_rofs             cpu_to_be32(NFSERR_ROFS)
+#define        nfserr_mlink            cpu_to_be32(NFSERR_MLINK)
+#define        nfserr_opnotsupp        cpu_to_be32(NFSERR_OPNOTSUPP)
+#define        nfserr_nametoolong      cpu_to_be32(NFSERR_NAMETOOLONG)
+#define        nfserr_notempty         cpu_to_be32(NFSERR_NOTEMPTY)
+#define        nfserr_dquot            cpu_to_be32(NFSERR_DQUOT)
+#define        nfserr_stale            cpu_to_be32(NFSERR_STALE)
+#define        nfserr_remote           cpu_to_be32(NFSERR_REMOTE)
+#define        nfserr_wflush           cpu_to_be32(NFSERR_WFLUSH)
+#define        nfserr_badhandle        cpu_to_be32(NFSERR_BADHANDLE)
+#define        nfserr_notsync          cpu_to_be32(NFSERR_NOT_SYNC)
+#define        nfserr_badcookie        cpu_to_be32(NFSERR_BAD_COOKIE)
+#define        nfserr_notsupp          cpu_to_be32(NFSERR_NOTSUPP)
+#define        nfserr_toosmall         cpu_to_be32(NFSERR_TOOSMALL)
+#define        nfserr_serverfault      cpu_to_be32(NFSERR_SERVERFAULT)
+#define        nfserr_badtype          cpu_to_be32(NFSERR_BADTYPE)
+#define        nfserr_jukebox          cpu_to_be32(NFSERR_JUKEBOX)
+#define        nfserr_denied           cpu_to_be32(NFSERR_DENIED)
+#define        nfserr_deadlock         cpu_to_be32(NFSERR_DEADLOCK)
+#define nfserr_expired          cpu_to_be32(NFSERR_EXPIRED)
+#define        nfserr_bad_cookie       cpu_to_be32(NFSERR_BAD_COOKIE)
+#define        nfserr_same             cpu_to_be32(NFSERR_SAME)
+#define        nfserr_clid_inuse       cpu_to_be32(NFSERR_CLID_INUSE)
+#define        nfserr_stale_clientid   cpu_to_be32(NFSERR_STALE_CLIENTID)
+#define        nfserr_resource         cpu_to_be32(NFSERR_RESOURCE)
+#define        nfserr_moved            cpu_to_be32(NFSERR_MOVED)
+#define        nfserr_nofilehandle     cpu_to_be32(NFSERR_NOFILEHANDLE)
+#define        nfserr_minor_vers_mismatch      cpu_to_be32(NFSERR_MINOR_VERS_MISMATCH)
+#define nfserr_share_denied    cpu_to_be32(NFSERR_SHARE_DENIED)
+#define nfserr_stale_stateid   cpu_to_be32(NFSERR_STALE_STATEID)
+#define nfserr_old_stateid     cpu_to_be32(NFSERR_OLD_STATEID)
+#define nfserr_bad_stateid     cpu_to_be32(NFSERR_BAD_STATEID)
+#define nfserr_bad_seqid       cpu_to_be32(NFSERR_BAD_SEQID)
+#define        nfserr_symlink          cpu_to_be32(NFSERR_SYMLINK)
+#define        nfserr_not_same         cpu_to_be32(NFSERR_NOT_SAME)
+#define        nfserr_restorefh        cpu_to_be32(NFSERR_RESTOREFH)
+#define        nfserr_attrnotsupp      cpu_to_be32(NFSERR_ATTRNOTSUPP)
+#define        nfserr_bad_xdr          cpu_to_be32(NFSERR_BAD_XDR)
+#define        nfserr_openmode         cpu_to_be32(NFSERR_OPENMODE)
+#define        nfserr_locks_held       cpu_to_be32(NFSERR_LOCKS_HELD)
+#define        nfserr_op_illegal       cpu_to_be32(NFSERR_OP_ILLEGAL)
+#define        nfserr_grace            cpu_to_be32(NFSERR_GRACE)
+#define        nfserr_no_grace         cpu_to_be32(NFSERR_NO_GRACE)
+#define        nfserr_reclaim_bad      cpu_to_be32(NFSERR_RECLAIM_BAD)
+#define        nfserr_badname          cpu_to_be32(NFSERR_BADNAME)
+#define        nfserr_cb_path_down     cpu_to_be32(NFSERR_CB_PATH_DOWN)
+#define        nfserr_locked           cpu_to_be32(NFSERR_LOCKED)
+#define        nfserr_wrongsec         cpu_to_be32(NFSERR_WRONGSEC)
+#define nfserr_badiomode               cpu_to_be32(NFS4ERR_BADIOMODE)
+#define nfserr_badlayout               cpu_to_be32(NFS4ERR_BADLAYOUT)
+#define nfserr_bad_session_digest      cpu_to_be32(NFS4ERR_BAD_SESSION_DIGEST)
+#define nfserr_badsession              cpu_to_be32(NFS4ERR_BADSESSION)
+#define nfserr_badslot                 cpu_to_be32(NFS4ERR_BADSLOT)
+#define nfserr_complete_already                cpu_to_be32(NFS4ERR_COMPLETE_ALREADY)
+#define nfserr_conn_not_bound_to_session cpu_to_be32(NFS4ERR_CONN_NOT_BOUND_TO_SESSION)
+#define nfserr_deleg_already_wanted    cpu_to_be32(NFS4ERR_DELEG_ALREADY_WANTED)
+#define nfserr_back_chan_busy          cpu_to_be32(NFS4ERR_BACK_CHAN_BUSY)
+#define nfserr_layouttrylater          cpu_to_be32(NFS4ERR_LAYOUTTRYLATER)
+#define nfserr_layoutunavailable       cpu_to_be32(NFS4ERR_LAYOUTUNAVAILABLE)
+#define nfserr_nomatching_layout       cpu_to_be32(NFS4ERR_NOMATCHING_LAYOUT)
+#define nfserr_recallconflict          cpu_to_be32(NFS4ERR_RECALLCONFLICT)
+#define nfserr_unknown_layouttype      cpu_to_be32(NFS4ERR_UNKNOWN_LAYOUTTYPE)
+#define nfserr_seq_misordered          cpu_to_be32(NFS4ERR_SEQ_MISORDERED)
+#define nfserr_sequence_pos            cpu_to_be32(NFS4ERR_SEQUENCE_POS)
+#define nfserr_req_too_big             cpu_to_be32(NFS4ERR_REQ_TOO_BIG)
+#define nfserr_rep_too_big             cpu_to_be32(NFS4ERR_REP_TOO_BIG)
+#define nfserr_rep_too_big_to_cache    cpu_to_be32(NFS4ERR_REP_TOO_BIG_TO_CACHE)
+#define nfserr_retry_uncached_rep      cpu_to_be32(NFS4ERR_RETRY_UNCACHED_REP)
+#define nfserr_unsafe_compound         cpu_to_be32(NFS4ERR_UNSAFE_COMPOUND)
+#define nfserr_too_many_ops            cpu_to_be32(NFS4ERR_TOO_MANY_OPS)
+#define nfserr_op_not_in_session       cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION)
+#define nfserr_hash_alg_unsupp         cpu_to_be32(NFS4ERR_HASH_ALG_UNSUPP)
+#define nfserr_clientid_busy           cpu_to_be32(NFS4ERR_CLIENTID_BUSY)
+#define nfserr_pnfs_io_hole            cpu_to_be32(NFS4ERR_PNFS_IO_HOLE)
+#define nfserr_seq_false_retry         cpu_to_be32(NFS4ERR_SEQ_FALSE_RETRY)
+#define nfserr_bad_high_slot           cpu_to_be32(NFS4ERR_BAD_HIGH_SLOT)
+#define nfserr_deadsession             cpu_to_be32(NFS4ERR_DEADSESSION)
+#define nfserr_encr_alg_unsupp         cpu_to_be32(NFS4ERR_ENCR_ALG_UNSUPP)
+#define nfserr_pnfs_no_layout          cpu_to_be32(NFS4ERR_PNFS_NO_LAYOUT)
+#define nfserr_not_only_op             cpu_to_be32(NFS4ERR_NOT_ONLY_OP)
+#define nfserr_wrong_cred              cpu_to_be32(NFS4ERR_WRONG_CRED)
+#define nfserr_wrong_type              cpu_to_be32(NFS4ERR_WRONG_TYPE)
+#define nfserr_dirdeleg_unavail                cpu_to_be32(NFS4ERR_DIRDELEG_UNAVAIL)
+#define nfserr_reject_deleg            cpu_to_be32(NFS4ERR_REJECT_DELEG)
+#define nfserr_returnconflict          cpu_to_be32(NFS4ERR_RETURNCONFLICT)
+#define nfserr_deleg_revoked           cpu_to_be32(NFS4ERR_DELEG_REVOKED)
 
 /* error codes for internal use */
 /* if a request fails due to kmalloc failure, it gets dropped.
  *  Client should resend eventually
  */
-#define        nfserr_dropit           __constant_htonl(30000)
+#define        nfserr_dropit           cpu_to_be32(30000)
 /* end-of-file indicator in readdir */
-#define        nfserr_eof              __constant_htonl(30001)
+#define        nfserr_eof              cpu_to_be32(30001)
+/* replay detected */
+#define        nfserr_replay_me        cpu_to_be32(11001)
+/* nfs41 replay detected */
+#define        nfserr_replay_cache     cpu_to_be32(11002)
 
 /* Check for dir entries '.' and '..' */
 #define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
@@ -255,18 +313,6 @@ void               nfsd_lockd_shutdown(void);
  */
 extern struct timeval  nfssvc_boot;
 
-static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
-{
-       if (fh->fh_export->ex_flags & NFSEXP_FSID) {
-               struct vfsmount *mnt = fh->fh_export->ex_mnt;
-               if (!old_valid_dev(mnt->mnt_sb->s_dev) ||
-                   (reffh->fh_version == 1 && reffh->fh_fsid_type == 1))
-                       return 1;
-       }
-       return 0;
-}
-
-
 #ifdef CONFIG_NFSD_V4
 
 /* before processing a COMPOUND operation, we have to check that there
@@ -274,12 +320,12 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
  * we might process an operation with side effects, and be unable to
  * tell the client that the operation succeeded.
  *
- * COMPOUND_SLACK_SPACE - this is the minimum amount of buffer space
+ * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space
  * needed to encode an "ordinary" _successful_ operation.  (GETATTR,
  * READ, READDIR, and READLINK have their own buffer checks.)  if we
  * fall below this level, we fail the next operation with NFS4ERR_RESOURCE.
  *
- * COMPOUND_ERR_SLACK_SPACE - this is the minimum amount of buffer space
+ * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space
  * needed to encode an operation which has failed with NFS4ERR_RESOURCE.
  * care is taken to ensure that we never fall below this level for any
  * reason.
@@ -300,7 +346,7 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
  *    TIME_BACKUP   (unlikely to be supported any time soon)
  *    TIME_CREATE   (unlikely to be supported any time soon)
  */
-#define NFSD_SUPPORTED_ATTRS_WORD0                                                          \
+#define NFSD4_SUPPORTED_ATTRS_WORD0                                                         \
 (FATTR4_WORD0_SUPPORTED_ATTRS   | FATTR4_WORD0_TYPE         | FATTR4_WORD0_FH_EXPIRE_TYPE   \
  | FATTR4_WORD0_CHANGE          | FATTR4_WORD0_SIZE         | FATTR4_WORD0_LINK_SUPPORT     \
  | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR   | FATTR4_WORD0_FSID             \
@@ -312,7 +358,7 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
  | FATTR4_WORD0_MAXFILESIZE     | FATTR4_WORD0_MAXLINK      | FATTR4_WORD0_MAXNAME          \
  | FATTR4_WORD0_MAXREAD         | FATTR4_WORD0_MAXWRITE     | FATTR4_WORD0_ACL)
 
-#define NFSD_SUPPORTED_ATTRS_WORD1                                                          \
+#define NFSD4_SUPPORTED_ATTRS_WORD1                                                         \
 (FATTR4_WORD1_MODE              | FATTR4_WORD1_NO_TRUNC     | FATTR4_WORD1_NUMLINKS         \
  | FATTR4_WORD1_OWNER          | FATTR4_WORD1_OWNER_GROUP  | FATTR4_WORD1_RAWDEV           \
  | FATTR4_WORD1_SPACE_AVAIL     | FATTR4_WORD1_SPACE_FREE   | FATTR4_WORD1_SPACE_TOTAL      \
@@ -320,6 +366,35 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
  | FATTR4_WORD1_TIME_DELTA   | FATTR4_WORD1_TIME_METADATA    \
  | FATTR4_WORD1_TIME_MODIFY     | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID)
 
+#define NFSD4_SUPPORTED_ATTRS_WORD2 0
+
+#define NFSD4_1_SUPPORTED_ATTRS_WORD0 \
+       NFSD4_SUPPORTED_ATTRS_WORD0
+
+#define NFSD4_1_SUPPORTED_ATTRS_WORD1 \
+       NFSD4_SUPPORTED_ATTRS_WORD1
+
+#define NFSD4_1_SUPPORTED_ATTRS_WORD2 \
+       (NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT)
+
+static inline u32 nfsd_suppattrs0(u32 minorversion)
+{
+       return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD0
+                           : NFSD4_SUPPORTED_ATTRS_WORD0;
+}
+
+static inline u32 nfsd_suppattrs1(u32 minorversion)
+{
+       return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD1
+                           : NFSD4_SUPPORTED_ATTRS_WORD1;
+}
+
+static inline u32 nfsd_suppattrs2(u32 minorversion)
+{
+       return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD2
+                           : NFSD4_SUPPORTED_ATTRS_WORD2;
+}
+
 /* These will return ERR_INVAL if specified in GETATTR or READDIR. */
 #define NFSD_WRITEONLY_ATTRS_WORD1                                                         \
 (FATTR4_WORD1_TIME_ACCESS_SET   | FATTR4_WORD1_TIME_MODIFY_SET)
@@ -329,10 +404,21 @@ static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
 (FATTR4_WORD0_SIZE              | FATTR4_WORD0_ACL                                         )
 #define NFSD_WRITEABLE_ATTRS_WORD1                                                          \
 (FATTR4_WORD1_MODE              | FATTR4_WORD1_OWNER         | FATTR4_WORD1_OWNER_GROUP     \
- | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY_SET)
+ | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
+#define NFSD_WRITEABLE_ATTRS_WORD2 0
 
-#endif /* CONFIG_NFSD_V4 */
+#define NFSD_SUPPATTR_EXCLCREAT_WORD0 \
+       NFSD_WRITEABLE_ATTRS_WORD0
+/*
+ * we currently store the exclusive create verifier in the v_{a,m}time
+ * attributes so the client can't set these at create time using EXCLUSIVE4_1
+ */
+#define NFSD_SUPPATTR_EXCLCREAT_WORD1 \
+       (NFSD_WRITEABLE_ATTRS_WORD1 & \
+        ~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET))
+#define NFSD_SUPPATTR_EXCLCREAT_WORD2 \
+       NFSD_WRITEABLE_ATTRS_WORD2
 
-#endif /* __KERNEL__ */
+#endif /* CONFIG_NFSD_V4 */
 
 #endif /* LINUX_NFSD_NFSD_H */