LCOM1920-T02G10

/*        $NetBSD: ffs_extern.h,v 1.82 2015/03/27 17:27:56 riastradh Exp $        */

/*-

 * Copyright (c) 1991, 1993, 1994

 *        The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *        @(#)ffs_extern.h        8.6 (Berkeley) 3/30/95

 */

#ifndef _UFS_FFS_FFS_EXTERN_H_

#define _UFS_FFS_FFS_EXTERN_H_

/*

 * Sysctl values for the fast filesystem.

 */

#define FFS_CLUSTERREAD                1        /* cluster reading enabled */

#define FFS_CLUSTERWRITE        2        /* cluster writing enabled */

#define FFS_REALLOCBLKS                3        /* block reallocation enabled */

#define FFS_ASYNCFREE                4        /* asynchronous block freeing enabled */

#define FFS_LOG_CHANGEOPT        5        /* log optimalization strategy change */

#define FFS_EXTATTR_AUTOCREATE        6        /* size for backing file autocreation */

#define FFS_MAXID                7        /* number of valid ffs ids */

struct buf;

struct fid;

struct fs;

struct inode;

struct ufs1_dinode;

struct ufs2_dinode;

struct mount;

struct nameidata;

struct lwp;

struct statvfs;

struct timeval;

struct timespec;

struct ufsmount;

struct uio;

struct vnode;

struct mbuf;

struct cg;

#if defined(_KERNEL)

#include <sys/pool.h>

#define FFS_NOBLK                ((daddr_t)-1)

#define        FFS_ITIMES(ip, acc, mod, cre) \

        while ((ip)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY)) \

                ffs_itimes(ip, acc, mod, cre)

extern pool_cache_t ffs_inode_cache;        /* memory pool for inodes */

extern pool_cache_t ffs_dinode1_cache;        /* memory pool for UFS1 dinodes */

extern pool_cache_t ffs_dinode2_cache;        /* memory pool for UFS2 dinodes */

#endif /* defined(_KERNEL) */

__BEGIN_DECLS

#if defined(_KERNEL)

#include <sys/param.h>

#include <sys/mount.h>

#include <sys/wapbl.h>

/* ffs_alloc.c */

int        ffs_alloc(struct inode *, daddr_t, daddr_t , int, int, kauth_cred_t,

                  daddr_t *);

int        ffs_realloccg(struct inode *, daddr_t, daddr_t, int, int ,

                      kauth_cred_t, struct buf **, daddr_t *);

int        ffs_valloc(struct vnode *, int, kauth_cred_t, ino_t *);

daddr_t        ffs_blkpref_ufs1(struct inode *, daddr_t, int, int, int32_t *);

daddr_t        ffs_blkpref_ufs2(struct inode *, daddr_t, int, int, int64_t *);

int        ffs_blkalloc(struct inode *, daddr_t, long);

int        ffs_blkalloc_ump(struct ufsmount *, daddr_t, long);

void        ffs_blkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);

void        *ffs_discard_init(struct vnode *, struct fs *);

void        ffs_discard_finish(void *, int);

void        ffs_blkfree_snap(struct fs *, struct vnode *, daddr_t, long, ino_t);

int        ffs_vfree(struct vnode *, ino_t, int);

int        ffs_checkfreefile(struct fs *, struct vnode *, ino_t);

int        ffs_freefile(struct mount *, ino_t, int);

int        ffs_freefile_snap(struct fs *, struct vnode *, ino_t, int);

/* ffs_balloc.c */

int        ffs_balloc(struct vnode *, off_t, int, kauth_cred_t, int,

    struct buf **);

/* ffs_inode.c */

int        ffs_update(struct vnode *, const struct timespec *,

    const struct timespec *, int);

int        ffs_truncate(struct vnode *, off_t, int, kauth_cred_t);

/* ffs_vfsops.c */

VFS_PROTOS(ffs);

int     ffs_reload(struct mount *, kauth_cred_t, struct lwp *);

int     ffs_mountfs(struct vnode *, struct mount *, struct lwp *);

int        ffs_flushfiles(struct mount *, int, struct lwp *);

int        ffs_sbupdate(struct ufsmount *, int);

int        ffs_cgupdate(struct ufsmount *, int);

/* ffs_vnops.c */

int        ffs_read(void *);

int        ffs_write(void *);

int        ffs_bufio(enum uio_rw, struct vnode *, void *, size_t, off_t, int,

            kauth_cred_t, size_t *, struct lwp *);

int        ffs_bufrd(struct vnode *, struct uio *, int, kauth_cred_t);

int        ffs_bufwr(struct vnode *, struct uio *, int, kauth_cred_t);

int        ffs_fsync(void *);

int        ffs_spec_fsync(void *);

int        ffs_reclaim(void *);

int        ffs_getpages(void *);

void        ffs_gop_size(struct vnode *, off_t, off_t *, int);

int        ffs_openextattr(void *);

int        ffs_closeextattr(void *);

int        ffs_getextattr(void *);

int        ffs_setextattr(void *);

int        ffs_listextattr(void *);

int        ffs_deleteextattr(void *);

int        ffs_lock(void *);

int        ffs_unlock(void *);

int        ffs_islocked(void *);

int        ffs_full_fsync(struct vnode *, int);

/*

 * Snapshot function prototypes.

 */

int        ffs_snapshot_init(struct ufsmount *);

void        ffs_snapshot_fini(struct ufsmount *);

int        ffs_snapblkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);

void        ffs_snapremove(struct vnode *);

int        ffs_snapshot(struct mount *, struct vnode *, struct timespec *);

void        ffs_snapshot_mount(struct mount *);

void        ffs_snapshot_unmount(struct mount *);

void        ffs_snapgone(struct vnode *);

int        ffs_snapshot_read(struct vnode *, struct uio *, int);

/* Write Ahead Physical Block Logging */

void        ffs_wapbl_verify_inodes(struct mount *, const char *);

void        ffs_wapbl_replay_finish(struct mount *);

int        ffs_wapbl_start(struct mount *);

int        ffs_wapbl_stop(struct mount *, int);

int        ffs_wapbl_replay_start(struct mount *, struct fs *, struct vnode *);

void        ffs_wapbl_blkalloc(struct fs *, struct vnode *, daddr_t, int);

void        ffs_wapbl_sync_metadata(struct mount *, daddr_t *, int *, int);

void        ffs_wapbl_abort_sync_metadata(struct mount *, daddr_t *, int *, int);

extern int (**ffs_vnodeop_p)(void *);

extern int (**ffs_specop_p)(void *);

extern int (**ffs_fifoop_p)(void *);

#endif /* defined(_KERNEL) */

/* ffs_appleufs.c */

struct appleufslabel;

u_int16_t ffs_appleufs_cksum(const struct appleufslabel *);

int        ffs_appleufs_validate(const char*, const struct appleufslabel *,

                              struct appleufslabel *);

void        ffs_appleufs_set(struct appleufslabel *, const char *, time_t,

                         uint64_t);

/* ffs_bswap.c */

void        ffs_sb_swap(struct fs*, struct fs *);

void        ffs_dinode1_swap(struct ufs1_dinode *, struct ufs1_dinode *);

void        ffs_dinode2_swap(struct ufs2_dinode *, struct ufs2_dinode *);

struct csum;

void        ffs_csum_swap(struct csum *, struct csum *, int);

struct csum_total;

void        ffs_csumtotal_swap(struct csum_total *, struct csum_total *);

void        ffs_cg_swap(struct cg *, struct cg *, struct fs *);

/* ffs_subr.c */

#if defined(_KERNEL)

void        ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);

int        ffs_getblk(struct vnode *, daddr_t, daddr_t, int, bool, buf_t **);

#endif /* defined(_KERNEL) */

void        ffs_fragacct(struct fs *, int, int32_t[], int, int);

int        ffs_isblock(struct fs *, u_char *, int32_t);

int        ffs_isfreeblock(struct fs *, u_char *, int32_t);

void        ffs_clrblock(struct fs *, u_char *, int32_t);

void        ffs_setblock(struct fs *, u_char *, int32_t);

void        ffs_itimes(struct inode *, const struct timespec *,

    const struct timespec *, const struct timespec *);

void        ffs_clusteracct(struct fs *, struct cg *, int32_t, int);

/* ffs_quota2.c */

int        ffs_quota2_mount(struct mount *);

__END_DECLS

#endif /* !_UFS_FFS_FFS_EXTERN_H_ */