/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
 *
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_FS_UFS_FILIO_H
#define _SYS_FS_UFS_FILIO_H

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * _FIOIO
 *
 * struct for _FIOIO ioctl():
 *      Input:
 *              fio_ino - inode number
 *              fio_gen - generation number
 *      Output:
 *              fio_fd  - readonly file descriptor
 *
 */

struct fioio {
        ino_t   fio_ino;        /* input : inode number */
        int     fio_gen;        /* input : generation number */
        int     fio_fd;         /* output: readonly file descriptor */
};

#if defined(_SYSCALL32)

struct fioio32 {
        ino32_t fio_ino;        /* input : inode number */
        int32_t fio_gen;        /* input : generation number */
        int32_t fio_fd;         /* output: readonly file descriptor */
};

#endif  /* _SYSCALL32 */

/*
 * _FIOTUNE
 */
struct fiotune {
        int     maxcontig;      /* cluster and directio size */
        int     rotdelay;       /* skip blocks between contig allocations */
        int     maxbpg;         /* currently defaults to 2048 */
        int     minfree;        /* %age to reserve for root */
        int     optim;          /* space or time */
};

/*
 * UFS Logging
 */
typedef struct fiolog {
        uint_t  nbytes_requested;
        uint_t  nbytes_actual;
        int     error;
} fiolog_t;

#define FIOLOG_ENONE    0
#define FIOLOG_ETRANS   1
#define FIOLOG_EROFS    2
#define FIOLOG_EULOCK   3
#define FIOLOG_EWLOCK   4
#define FIOLOG_ECLEAN   5
#define FIOLOG_ENOULOCK 6

#if defined(_KERNEL)

extern  int     ufs_fiosatime(struct vnode *, struct timeval *, int,
                struct cred *);
extern  int     ufs_fiosdio(struct vnode *, uint_t *, int flag, struct cred *);
extern  int     ufs_fiogdio(struct vnode *, uint_t *, int flag, struct cred *);
extern  int     ufs_fioio(struct vnode *, struct fioio *, int, struct cred *);
extern  int     ufs_fioisbusy(struct vnode *, int *, struct cred *);
extern  int     ufs_fiodirectio(struct vnode *, int, struct cred *);
extern  int     ufs_fiotune(struct vnode *, struct fiotune *, struct cred *);
extern  int     ufs_fiologenable(vnode_t *, fiolog_t *, cred_t *, int);
extern  int     ufs_fiologdisable(vnode_t *, fiolog_t *, cred_t *, int);
extern  int     ufs_fioislog(vnode_t *, uint32_t *, cred_t *, int);
extern  int     ufs_fio_holey(vnode_t *, int, offset_t *);
extern  int     ufs_mark_compressed(struct vnode *vp);

#endif  /* defined(_KERNEL) */

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_FS_UFS_FILIO_H */