152 static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp)  in nfsd_set_fh_dentry()  argument
154 	struct knfsd_fh	*fh = &fhp->fh_handle;  in nfsd_set_fh_dentry()
285 	fhp->fh_dentry = dentry;  in nfsd_set_fh_dentry()
286 	fhp->fh_export = exp;  in nfsd_set_fh_dentry()
321 fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access)  in fh_verify()  argument
327 	dprintk("nfsd: fh_verify(%s)\n", SVCFH_fmt(fhp));  in fh_verify()
329 	if (!fhp->fh_dentry) {  in fh_verify()
330 		error = nfsd_set_fh_dentry(rqstp, fhp);  in fh_verify()
334 	dentry = fhp->fh_dentry;  in fh_verify()
335 	exp = fhp->fh_export;  in fh_verify()
408 static void _fh_update(struct svc_fh *fhp, struct svc_export *exp,  in _fh_update()  argument
413 			(fhp->fh_handle.fh_fsid + fhp->fh_handle.fh_size/4 - 1);  in _fh_update()
414 		int maxsize = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;  in _fh_update()
417 		fhp->fh_handle.fh_fileid_type =  in _fh_update()
419 		fhp->fh_handle.fh_size += maxsize * 4;  in _fh_update()
421 		fhp->fh_handle.fh_fileid_type = FILEID_ROOT;  in _fh_update()
474 static void set_version_and_fsid_type(struct svc_fh *fhp, struct svc_export *exp, struct svc_fh *re…  in set_version_and_fsid_type()  argument
507 		if (fhp->fh_maxsize >= 64) {  in set_version_and_fsid_type()
523 	fhp->fh_handle.fh_version = version;  in set_version_and_fsid_type()
525 		fhp->fh_handle.fh_fsid_type = fsid_type;  in set_version_and_fsid_type()
529 fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,  in fh_compose()  argument
553 	set_version_and_fsid_type(fhp, exp, ref_fh);  in fh_compose()
555 	if (ref_fh == fhp)  in fh_compose()
558 	if (fhp->fh_locked || fhp->fh_dentry) {  in fh_compose()
562 	if (fhp->fh_maxsize < NFS_FHSIZE)  in fh_compose()
564 		       fhp->fh_maxsize,  in fh_compose()
567 	fhp->fh_dentry = dget(dentry); /* our internal copy */  in fh_compose()
568 	fhp->fh_export = exp_get(exp);  in fh_compose()
570 	if (fhp->fh_handle.fh_version == 0xca) {  in fh_compose()
572 		memset(&fhp->fh_handle.fh_base, 0, NFS_FHSIZE);  in fh_compose()
573 		fhp->fh_handle.fh_size = NFS_FHSIZE;  in fh_compose()
574 		fhp->fh_handle.ofh_dcookie = 0xfeebbaca;  in fh_compose()
575 		fhp->fh_handle.ofh_dev =  old_encode_dev(ex_dev);  in fh_compose()
576 		fhp->fh_handle.ofh_xdev = fhp->fh_handle.ofh_dev;  in fh_compose()
577 		fhp->fh_handle.ofh_xino =  in fh_compose()
579 		fhp->fh_handle.ofh_dirino = ino_t_to_u32(parent_ino(dentry));  in fh_compose()
581 			_fh_update_old(dentry, exp, &fhp->fh_handle);  in fh_compose()
583 		fhp->fh_handle.fh_size =  in fh_compose()
584 			key_len(fhp->fh_handle.fh_fsid_type) + 4;  in fh_compose()
585 		fhp->fh_handle.fh_auth_type = 0;  in fh_compose()
587 		mk_fsid(fhp->fh_handle.fh_fsid_type,  in fh_compose()
588 			fhp->fh_handle.fh_fsid,  in fh_compose()
594 			_fh_update(fhp, exp, dentry);  in fh_compose()
595 		if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID) {  in fh_compose()
596 			fh_put(fhp);  in fh_compose()
609 fh_update(struct svc_fh *fhp)  in fh_update()  argument
613 	if (!fhp->fh_dentry)  in fh_update()
616 	dentry = fhp->fh_dentry;  in fh_update()
619 	if (fhp->fh_handle.fh_version != 1) {  in fh_update()
620 		_fh_update_old(dentry, fhp->fh_export, &fhp->fh_handle);  in fh_update()
622 		if (fhp->fh_handle.fh_fileid_type != FILEID_ROOT)  in fh_update()
625 		_fh_update(fhp, fhp->fh_export, dentry);  in fh_update()
626 		if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID)  in fh_update()
643 fh_put(struct svc_fh *fhp)  in fh_put()  argument
645 	struct dentry * dentry = fhp->fh_dentry;  in fh_put()
646 	struct svc_export * exp = fhp->fh_export;  in fh_put()
648 		fh_unlock(fhp);  in fh_put()
649 		fhp->fh_dentry = NULL;  in fh_put()
651 		fh_clear_wcc(fhp);  in fh_put()
653 	fh_drop_write(fhp);  in fh_put()
656 		fhp->fh_export = NULL;  in fh_put()
664 char * SVCFH_fmt(struct svc_fh *fhp)  in SVCFH_fmt()  argument
666 	struct knfsd_fh *fh = &fhp->fh_handle;  in SVCFH_fmt()
680 enum fsid_source fsid_source(struct svc_fh *fhp)  in fsid_source()  argument
682 	if (fhp->fh_handle.fh_version != 1)  in fsid_source()
684 	switch(fhp->fh_handle.fh_fsid_type) {  in fsid_source()
688 		if (exp_sb(fhp->fh_export)->s_type->fs_flags & FS_REQUIRES_DEV)  in fsid_source()
692 		if (fhp->fh_export->ex_flags & NFSEXP_FSID)  in fsid_source()
701 	if (fhp->fh_export->ex_flags & NFSEXP_FSID)  in fsid_source()
703 	if (fhp->fh_export->ex_uuid)  in fsid_source()