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minix/sys/ufs/chfs/chfs_vnops.c
Ben Gras d65f6f7009 imported code harmonisation 
. common/include/arch/i386 is not actually an imported
	  sys/arch/i386/include but leftover Minix files;
	  remove and move to include/
	. move include/ufs to sys/ufs, where it came from, now that
	  we have a sys/ hierarchy
	. move mdocml/ to external/bsd/, now we have that
	. single sys/arch/i386/stand/ import for boot stuff
2012-03-14 16:02:59 +01:00

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/* $NetBSD: chfs_vnops.c,v 1.2 2011/11/24 21:09:37 agc Exp $ */
/*-
* Copyright (c) 2010 Department of Software Engineering,
* University of Szeged, Hungary
* Copyright (C) 2010 Tamas Toth <ttoth@inf.u-szeged.hu>
* Copyright (C) 2010 Adam Hoka <ahoka@NetBSD.org>
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by the Department of Software Engineering, University of Szeged, Hungary
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/param.h>
#include <miscfs/specfs/specdev.h>
#include <miscfs/fifofs/fifo.h>
#include <miscfs/genfs/genfs.h>
#include <ufs/ufs/dir.h>
#include <ufs/ufs/ufs_extern.h>
#include <uvm/uvm.h>
#include <sys/namei.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <sys/buf.h>
#include <sys/fstrans.h>
#include <sys/vnode.h>
#include "chfs.h"
#define READ_S "chfs_read"
int
chfs_lookup(void *v)
{
struct vnode *dvp = ((struct vop_lookup_args *) v)->a_dvp;
struct vnode **vpp = ((struct vop_lookup_args *) v)->a_vpp;
struct componentname *cnp = ((struct vop_lookup_args *) v)->a_cnp;
int error;
struct chfs_inode* ip;
struct ufsmount* ump;
struct chfs_mount* chmp;
struct chfs_vnode_cache* chvc;
struct chfs_dirent* fd;
dbg("lookup(): %s\n", cnp->cn_nameptr);
KASSERT(VOP_ISLOCKED(dvp));
*vpp = NULL;
// Check accessibility of requested node as a first step.
error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred);
if (error != 0) {
goto out;
}
// If requesting the last path component on a read-only file system
// with a write operation, deny it.
if ((cnp->cn_flags & ISLASTCN) && (dvp->v_mount->mnt_flag & MNT_RDONLY)
&& (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME)) {
error = EROFS;
goto out;
}
// Avoid doing a linear scan of the directory if the requested
// directory/name couple is already in the cache.
error = cache_lookup(dvp, vpp, cnp);
if (error >= 0) {
goto out;
}
ip = VTOI(dvp);
ump = VFSTOUFS(dvp->v_mount);
chmp = ump->um_chfs;
if (ip->ino == 0) {
ip->ino = ++chmp->chm_max_vno;
}
mutex_enter(&chmp->chm_lock_vnocache);
chvc = chfs_vnode_cache_get(chmp, ip->ino);
mutex_exit(&chmp->chm_lock_vnocache);
// We cannot be requesting the parent directory of the root node.
KASSERT(IMPLIES(dvp->v_type == VDIR && chvc->pvno == chvc->vno,
!(cnp->cn_flags & ISDOTDOT)));
if (cnp->cn_flags & ISDOTDOT) {
VOP_UNLOCK(dvp);
error = VFS_VGET(dvp->v_mount, ip->chvc->pvno, vpp);
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
} else if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
vref(dvp);
*vpp = dvp;
error = 0;
} else {
fd = chfs_dir_lookup(ip, cnp);
if (fd == NULL) {
dbg("fd null\n");
// The entry was not found in the directory.
// This is OK if we are creating or renaming an
// entry and are working on the last component of
// the path name.
if ((cnp->cn_flags & ISLASTCN) && (cnp->cn_nameiop == CREATE
|| cnp->cn_nameiop == RENAME)) {
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred);
if (error) {
dbg("after the entry was not found in dir\n");
goto out;
}
dbg("return EJUSTRETURN\n");
error = EJUSTRETURN;
} else {
error = ENOENT;
}
} else {
// If we are not at the last path component and
// found a non-directory or non-link entry (which
// may itself be pointing to a directory), raise
// an error.
if ((fd->type != VDIR && fd->type != VLNK) && !(cnp->cn_flags
& ISLASTCN)) {
error = ENOTDIR;
goto out;
}
dbg("vno@allocating new vnode: %llu\n",
(unsigned long long)fd->vno);
error = VFS_VGET(dvp->v_mount, fd->vno, vpp);
}
}
// Store the result of this lookup in the cache. Avoid this if the
// request was for creation, as it does not improve timings on
// emprical tests.
if ((cnp->cn_flags & MAKEENTRY) && cnp->cn_nameiop != CREATE
&& (cnp->cn_flags & ISDOTDOT) == 0)
cache_enter(dvp, *vpp, cnp);
out:
// If there were no errors, *vpp cannot be null and it must be
// locked.
KASSERT(IFF(error == 0, *vpp != NULL && VOP_ISLOCKED(*vpp)));
// dvp must always be locked.
KASSERT(VOP_ISLOCKED(dvp));
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_create(void *v)
{
struct vop_create_args /* {
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
struct vattr *a_vap;
} */*ap = v;
int error, mode;
dbg("create()\n");
mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
if ((mode & IFMT) == 0) {
if (ap->a_vap->va_type == VREG)
mode |= IFREG;
if (ap->a_vap->va_type == VSOCK)
mode |= IFSOCK;
}
error = chfs_makeinode(mode, ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap->va_type);
if (error) {
dbg("error: %d\n", error);
return error;
}
VN_KNOTE(ap->a_dvp, NOTE_WRITE);
return 0;
}
/* --------------------------------------------------------------------- */
int
chfs_mknod(void *v)
{
struct vnode *dvp = ((struct vop_mknod_args *) v)->a_dvp;
struct vnode **vpp = ((struct vop_mknod_args *) v)->a_vpp;
struct componentname *cnp = ((struct vop_mknod_args *) v)->a_cnp;
struct vattr *vap = ((struct vop_mknod_args *) v)->a_vap;
int mode, err = 0;
struct chfs_inode *ip;
struct vnode *vp;
struct ufsmount *ump;
struct chfs_mount *chmp;
ino_t ino;
struct chfs_full_dnode *fd;
struct buf *bp;
int len;
dbg("mknod()\n");
ump = VFSTOUFS(dvp->v_mount);
chmp = ump->um_chfs;
if (vap->va_type != VBLK && vap->va_type != VCHR && vap->va_type != VFIFO)
return EINVAL;
vp = *vpp;
mode = MAKEIMODE(vap->va_type, vap->va_mode);
if ((mode & IFMT) == 0) {
switch (vap->va_type) {
case VBLK:
mode |= IFBLK;
break;
case VCHR:
mode |= IFCHR;
break;
case VFIFO:
mode |= IFIFO;
break;
default:
break;
}
}
err = chfs_makeinode(mode, dvp, &vp, cnp, vap->va_type);
ip = VTOI(vp);
ino = ip->ino;
if (vap->va_rdev != VNOVAL)
ip->rdev = vap->va_rdev;
if (vap->va_type == VFIFO)
vp->v_op = chfs_fifoop_p;
else {
vp->v_op = chfs_specop_p;
spec_node_init(vp, ip->rdev);
}
if (err)
return err;
len = sizeof(dev_t);
chfs_set_vnode_size(vp, len);
bp = getiobuf(vp, true);
bp->b_bufsize = bp->b_resid = len;
bp->b_data = kmem_alloc(len, KM_SLEEP);
memcpy(bp->b_data, &ip->rdev, len);
bp->b_blkno = 0;
fd = chfs_alloc_full_dnode();
mutex_enter(&chmp->chm_lock_mountfields);
err = chfs_write_flash_dnode(chmp, vp, bp, fd);
if (err) {
mutex_exit(&chmp->chm_lock_mountfields);
kmem_free(bp->b_data, len);
return err;
}
err = chfs_add_full_dnode_to_inode(chmp, ip, fd);
if (err) {
mutex_exit(&chmp->chm_lock_mountfields);
kmem_free(bp->b_data, len);
return err;
}
mutex_exit(&chmp->chm_lock_mountfields);
*vpp = vp;
kmem_free(bp->b_data, len);
putiobuf(bp);
return 0;
}
/* --------------------------------------------------------------------- */
int
chfs_open(void *v)
{
struct vnode *vp = ((struct vop_open_args *) v)->a_vp;
int mode = ((struct vop_open_args *) v)->a_mode;
dbg("open()\n");
int error;
struct chfs_inode *ip;
KASSERT(VOP_ISLOCKED(vp));
ip = VTOI(vp);
KASSERT(vp->v_size == ip->size);
if (ip->chvc->nlink < 1) {
error = ENOENT;
goto out;
}
// If the file is marked append-only, deny write requests.
if (ip->flags & APPEND && (mode & (FWRITE | O_APPEND)) == FWRITE)
error = EPERM;
else
error = 0;
out:
KASSERT(VOP_ISLOCKED(vp));
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_close(void *v)
{
struct vnode *vp = ((struct vop_close_args *) v)->a_vp;
dbg("close()\n");
struct chfs_inode *ip;
KASSERT(VOP_ISLOCKED(vp));
ip = VTOI(vp);
if (ip->chvc->nlink > 0) {
//ip->chvc->nlink = 0;
chfs_update(vp, NULL, NULL, UPDATE_CLOSE);
}
return 0;
}
/* --------------------------------------------------------------------- */
int
chfs_access(void *v)
{
struct vnode *vp = ((struct vop_access_args *) v)->a_vp;
int mode = ((struct vop_access_args *) v)->a_mode;
kauth_cred_t cred = ((struct vop_access_args *) v)->a_cred;
dbg("access()\n");
struct chfs_inode *ip = VTOI(vp);
if (mode & VWRITE) {
switch (vp->v_type) {
case VLNK:
case VDIR:
case VREG:
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return (EROFS);
break;
case VBLK:
case VCHR:
case VSOCK:
case VFIFO:
break;
default:
break;
}
}
if (mode & VWRITE && ip->flags & IMMUTABLE)
return (EPERM);
return genfs_can_access(vp->v_type, ip->mode & ALLPERMS,
ip->uid, ip->gid, mode, cred);
}
/* --------------------------------------------------------------------- */
int
chfs_getattr(void *v)
{
struct vnode *vp = ((struct vop_getattr_args *) v)->a_vp;
struct vattr *vap = ((struct vop_getattr_args *) v)->a_vap;
struct chfs_inode *ip = VTOI(vp);
dbg("getattr()\n");
KASSERT(vp->v_size == ip->size);
vattr_null(vap);
CHFS_ITIMES(ip, NULL, NULL, NULL);
vap->va_type = vp->v_type;
vap->va_mode = ip->mode & ALLPERMS;
vap->va_nlink = ip->chvc->nlink;
vap->va_uid = ip->uid;
vap->va_gid = ip->gid;
vap->va_fsid = ip->dev;
vap->va_fileid = ip->ino;
vap->va_size = ip->size;
vap->va_blocksize = PAGE_SIZE;
vap->va_atime.tv_sec = ip->atime;
vap->va_atime.tv_nsec = 0;
vap->va_mtime.tv_sec = ip->mtime;
vap->va_mtime.tv_nsec = 0;
vap->va_ctime.tv_sec = ip->ctime;
vap->va_ctime.tv_nsec = 0;
vap->va_gen = ip->version;
vap->va_flags = ip->flags;
vap->va_rdev = ip->rdev;
vap->va_bytes = round_page(ip->size);
vap->va_filerev = VNOVAL;
vap->va_vaflags = 0;
vap->va_spare = VNOVAL;
return 0;
}
/* --------------------------------------------------------------------- */
/* Note: modelled after tmpfs's same function */
int
chfs_setattr(void *v)
{
struct vnode *vp = ((struct vop_setattr_args *) v)->a_vp;
struct vattr *vap = ((struct vop_setattr_args *) v)->a_vap;
kauth_cred_t cred = ((struct vop_setattr_args *) v)->a_cred;
struct chfs_inode *ip;
struct ufsmount *ump = VFSTOUFS(vp->v_mount);
struct chfs_mount *chmp = ump->um_chfs;
int error = 0;
dbg("setattr()\n");
KASSERT(VOP_ISLOCKED(vp));
ip = VTOI(vp);
/* Abort if any unsettable attribute is given. */
if (vap->va_type != VNON || vap->va_nlink != VNOVAL ||
vap->va_fsid != VNOVAL || vap->va_fileid != VNOVAL ||
vap->va_blocksize != VNOVAL /*|| GOODTIME(&vap->va_ctime)*/ ||
vap->va_gen != VNOVAL || vap->va_rdev != VNOVAL ||
vap->va_bytes != VNOVAL) {
return EINVAL;
}
if (error == 0 && (vap->va_flags != VNOVAL))
error = chfs_chflags(vp, vap->va_flags, cred);
if (error == 0 && (vap->va_size != VNOVAL))
error = chfs_chsize(vp, vap->va_size, cred);
if (error == 0 && (vap->va_uid != VNOVAL || vap->va_gid != VNOVAL))
error = chfs_chown(vp, vap->va_uid, vap->va_gid, cred);
if (error == 0 && (vap->va_mode != VNOVAL))
error = chfs_chmod(vp, vap->va_mode, cred);
#if 0
/* why do we need that? */
if (ip->flags & (IMMUTABLE | APPEND))
return EPERM;
#endif
if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
error = genfs_can_chtimes(vp, vap->va_vaflags, ip->uid, cred);
if (error)
return error;
if (vap->va_atime.tv_sec != VNOVAL)
ip->iflag |= IN_ACCESS;
if (vap->va_mtime.tv_sec != VNOVAL)
ip->iflag |= IN_CHANGE | IN_UPDATE;
error = chfs_update(vp,
&vap->va_atime, &vap->va_mtime, UPDATE_WAIT);
if (error)
return error;
}
mutex_enter(&chmp->chm_lock_mountfields);
error = chfs_write_flash_vnode(chmp, ip, ALLOC_NORMAL);
mutex_exit(&chmp->chm_lock_mountfields);
return error;
}
int
chfs_chmod(struct vnode *vp, int mode, kauth_cred_t cred)
{
struct chfs_inode *ip = VTOI(vp);
int error;
dbg("chmod\n");
error = genfs_can_chmod(vp, cred, ip->uid, ip->gid, mode);
if (error)
return error;
ip->mode &= ~ALLPERMS;
ip->mode |= (mode & ALLPERMS);
ip->iflag |= IN_CHANGE;
error = chfs_update(vp, NULL, NULL, UPDATE_WAIT);
if (error)
return error;
return 0;
}
int
chfs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred)
{
struct chfs_inode *ip = VTOI(vp);
int error;
dbg("chown\n");
if (uid == (uid_t)VNOVAL)
uid = ip->uid;
if (gid == (gid_t)VNOVAL)
gid = ip->gid;
error = genfs_can_chown(vp, cred, ip->uid, ip->gid, uid, gid);
if (error)
return error;
ip->gid = gid;
ip->uid = uid;
ip->iflag |= IN_CHANGE;
error = chfs_update(vp, NULL, NULL, UPDATE_WAIT);
if (error)
return error;
return 0;
}
/* --------------------------------------------------------------------- */
/* calculates ((off_t)blk * chmp->chm_chm_fs_bsize) */
#define lblktosize(chmp, blk) \
(((off_t)(blk)) << (chmp)->chm_fs_bshift)
/* calculates (loc % chmp->chm_chm_fs_bsize) */
#define blkoff(chmp, loc) \
((loc) & (chmp)->chm_fs_qbmask)
/* calculates (loc / chmp->chm_chm_fs_bsize) */
#define lblkno(chmp, loc) \
((loc) >> (chmp)->chm_fs_bshift)
/* calculates roundup(size, chmp->chm_chm_fs_fsize) */
#define fragroundup(chmp, size) \
(((size) + (chmp)->chm_fs_qfmask) & (chmp)->chm_fs_fmask)
#define blksize(chmp, ip, lbn) \
(((lbn) >= NDADDR || (ip)->size >= lblktosize(chmp, (lbn) + 1)) \
? (chmp)->chm_fs_bsize \
: (fragroundup(chmp, blkoff(chmp, (ip)->size))))
/* calculates roundup(size, chmp->chm_chm_fs_bsize) */
#define blkroundup(chmp, size) \
(((size) + (chmp)->chm_fs_qbmask) & (chmp)->chm_fs_bmask)
int
chfs_read(void *v)
{
struct vop_read_args /* {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp;
struct chfs_inode *ip;
struct uio *uio;
struct ufsmount *ump;
struct buf *bp;
struct chfs_mount *chmp;
daddr_t lbn, nextlbn;
off_t bytesinfile;
long size, xfersize, blkoffset;
int error, ioflag;
vsize_t bytelen;
bool usepc = false;
dbg("chfs_read\n");
vp = ap->a_vp;
ip = VTOI(vp);
ump = ip->ump;
uio = ap->a_uio;
ioflag = ap->a_ioflag;
error = 0;
dbg("ip->size:%llu\n", (unsigned long long)ip->size);
#ifdef DIAGNOSTIC
if (uio->uio_rw != UIO_READ)
panic("%s: mode", READ_S);
if (vp->v_type == VLNK) {
if (ip->size < ump->um_maxsymlinklen)
panic("%s: short symlink", READ_S);
} else if (vp->v_type != VREG && vp->v_type != VDIR)
panic("%s: type %d", READ_S, vp->v_type);
#endif
chmp = ip->chmp;
if ((u_int64_t)uio->uio_offset > ump->um_maxfilesize)
return (EFBIG);
if (uio->uio_resid == 0)
return (0);
fstrans_start(vp->v_mount, FSTRANS_SHARED);
if (uio->uio_offset >= ip->size)
goto out;
usepc = vp->v_type == VREG;
bytelen = 0;
if (usepc) {
const int advice = IO_ADV_DECODE(ap->a_ioflag);
while (uio->uio_resid > 0) {
if (ioflag & IO_DIRECT) {
genfs_directio(vp, uio, ioflag);
}
bytelen = MIN(ip->size - uio->uio_offset,
uio->uio_resid);
if (bytelen == 0)
break;
error = ubc_uiomove(&vp->v_uobj, uio, bytelen, advice,
UBC_READ | UBC_PARTIALOK |
(UBC_WANT_UNMAP(vp) ? UBC_UNMAP : 0));
if (error)
break;
}
goto out;
}
dbg("start reading\n");
for (error = 0, bp = NULL; uio->uio_resid > 0; bp = NULL) {
bytesinfile = ip->size - uio->uio_offset;
if (bytesinfile <= 0)
break;
lbn = lblkno(chmp, uio->uio_offset);
nextlbn = lbn + 1;
size = blksize(chmp, ip, lbn);
blkoffset = blkoff(chmp, uio->uio_offset);
xfersize = MIN(MIN(chmp->chm_fs_bsize - blkoffset, uio->uio_resid),
bytesinfile);
if (lblktosize(chmp, nextlbn) >= ip->size) {
error = bread(vp, lbn, size, NOCRED, 0, &bp);
dbg("after bread\n");
} else {
int nextsize = blksize(chmp, ip, nextlbn);
dbg("size: %ld\n", size);
error = breadn(vp, lbn,
size, &nextlbn, &nextsize, 1, NOCRED, 0, &bp);
dbg("after breadN\n");
}
if (error)
break;
/*
* We should only get non-zero b_resid when an I/O error
* has occurred, which should cause us to break above.
* However, if the short read did not cause an error,
* then we want to ensure that we do not uiomove bad
* or uninitialized data.
*/
size -= bp->b_resid;
if (size < xfersize) {
if (size == 0)
break;
xfersize = size;
}
dbg("uiomove\n");
error = uiomove((char *)bp->b_data + blkoffset, xfersize, uio);
if (error)
break;
brelse(bp, 0);
}
if (bp != NULL)
brelse(bp, 0);
out:
if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) {
ip->iflag |= IN_ACCESS;
if ((ap->a_ioflag & IO_SYNC) == IO_SYNC) {
//error = UFS_WAPBL_BEGIN(vp->v_mount);
if (error) {
fstrans_done(vp->v_mount);
return error;
}
error = chfs_update(vp, NULL, NULL, UPDATE_WAIT);
//UFS_WAPBL_END(vp->v_mount);
}
}
dbg("[END]\n");
fstrans_done(vp->v_mount);
return (error);
}
/* --------------------------------------------------------------------- */
/*from ffs write*/
int
chfs_write(void *v)
{
struct vop_write_args /* {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp ;
struct uio *uio;
struct chfs_inode *ip;
struct chfs_mount *chmp;
struct lwp *l;
kauth_cred_t cred;
off_t osize, origoff, oldoff, preallocoff, endallocoff, nsize;
int blkoffset, error, flags, ioflag, resid;
int aflag;
int extended=0;
vsize_t bytelen;
bool async;
struct ufsmount *ump;
cred = ap->a_cred;
ioflag = ap->a_ioflag;
uio = ap->a_uio;
vp = ap->a_vp;
ip = VTOI(vp);
//dbg("file size (vp): %llu\n", (unsigned long long)vp->v_size);
//dbg("file size (ip): %llu\n", (unsigned long long)ip->i_size);
ump = ip->ump;
//dbg("uio->resid: %d\n", uio->uio_resid);
dbg("write\n");
KASSERT(vp->v_size == ip->size);
switch (vp->v_type) {
case VREG:
if (ioflag & IO_APPEND)
uio->uio_offset = ip->size;
if ((ip->flags & APPEND) && uio->uio_offset != ip->size)
return (EPERM);
/* FALLTHROUGH */
case VLNK:
break;
case VDIR:
if ((ioflag & IO_SYNC) == 0)
panic("chfs_write: nonsync dir write");
break;
default:
panic("chfs_write: type");
}
chmp = ip->chmp;
if (uio->uio_offset < 0 ||
(u_int64_t)uio->uio_offset +
uio->uio_resid > ump->um_maxfilesize) {
dbg("uio->uio_offset = %lld | uio->uio_offset + "
"uio->uio_resid (%llu) > ump->um_maxfilesize (%lld)\n",
(long long)uio->uio_offset,
(uint64_t)uio->uio_offset + uio->uio_resid,
(long long)ump->um_maxfilesize);
return (EFBIG);
}
/*
* Maybe this should be above the vnode op call, but so long as
* file servers have no limits, I don't think it matters.
*/
l = curlwp;
if (vp->v_type == VREG && l &&
uio->uio_offset + uio->uio_resid >
l->l_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
mutex_enter(proc_lock);
psignal(l->l_proc, SIGXFSZ);
mutex_exit(proc_lock);
return (EFBIG);
}
if (uio->uio_resid == 0)
return (0);
//mutex_enter(&ip->inode_lock);
fstrans_start(vp->v_mount, FSTRANS_SHARED);
flags = ioflag & IO_SYNC ? B_SYNC : 0;
async = vp->v_mount->mnt_flag & MNT_ASYNC;
origoff = uio->uio_offset;
resid = uio->uio_resid;
osize = ip->size;
error = 0;
/*if ((ioflag & IO_JOURNALLOCKED) == 0) {
error = UFS_WAPBL_BEGIN(vp->v_mount);
if (error) {
fstrans_done(vp->v_mount);
return error;
}
}*/
preallocoff = round_page(blkroundup(chmp,
MAX(osize, uio->uio_offset)));
aflag = ioflag & IO_SYNC ? B_SYNC : 0;
nsize = MAX(osize, uio->uio_offset + uio->uio_resid);
endallocoff = nsize - blkoff(chmp, nsize);
/*
* if we're increasing the file size, deal with expanding
* the fragment if there is one.
*/
if (nsize > osize && lblkno(chmp, osize) < NDADDR &&
lblkno(chmp, osize) != lblkno(chmp, nsize) &&
blkroundup(chmp, osize) != osize) {
off_t eob;
eob = blkroundup(chmp, osize);
uvm_vnp_setwritesize(vp, eob);
error = ufs_balloc_range(vp, osize, eob - osize, cred, aflag);
if (error)
goto out;
if (flags & B_SYNC) {
mutex_enter(vp->v_interlock);
VOP_PUTPAGES(vp,
trunc_page(osize & chmp->chm_fs_bmask),
round_page(eob),
PGO_CLEANIT | PGO_SYNCIO | PGO_JOURNALLOCKED);
}
}
while (uio->uio_resid > 0) {
int ubc_flags = UBC_WRITE;
bool overwrite; /* if we're overwrite a whole block */
off_t newoff;
if (ioflag & IO_DIRECT) {
genfs_directio(vp, uio, ioflag | IO_JOURNALLOCKED);
}
oldoff = uio->uio_offset;
blkoffset = blkoff(chmp, uio->uio_offset);
bytelen = MIN(chmp->chm_fs_bsize - blkoffset, uio->uio_resid);
if (bytelen == 0) {
break;
}
/*
* if we're filling in a hole, allocate the blocks now and
* initialize the pages first. if we're extending the file,
* we can safely allocate blocks without initializing pages
* since the new blocks will be inaccessible until the write
* is complete.
*/
overwrite = uio->uio_offset >= preallocoff &&
uio->uio_offset < endallocoff;
if (!overwrite && (vp->v_vflag & VV_MAPPED) == 0 &&
blkoff(chmp, uio->uio_offset) == 0 &&
(uio->uio_offset & PAGE_MASK) == 0) {
vsize_t len;
len = trunc_page(bytelen);
len -= blkoff(chmp, len);
if (len > 0) {
overwrite = true;
bytelen = len;
}
}
newoff = oldoff + bytelen;
if (vp->v_size < newoff) {
uvm_vnp_setwritesize(vp, newoff);
}
if (!overwrite) {
error = ufs_balloc_range(vp, uio->uio_offset, bytelen,
cred, aflag);
if (error)
break;
} else {
genfs_node_wrlock(vp);
error = GOP_ALLOC(vp, uio->uio_offset, bytelen,
aflag, cred);
genfs_node_unlock(vp);
if (error)
break;
ubc_flags |= UBC_FAULTBUSY;
}
/*
* copy the data.
*/
ubc_flags |= UBC_WANT_UNMAP(vp) ? UBC_UNMAP : 0;
error = ubc_uiomove(&vp->v_uobj, uio, bytelen,
IO_ADV_DECODE(ioflag), ubc_flags);
/*
* update UVM's notion of the size now that we've
* copied the data into the vnode's pages.
*
* we should update the size even when uiomove failed.
*/
if (vp->v_size < newoff) {
uvm_vnp_setsize(vp, newoff);
extended = 1;
}
if (error)
break;
/*
* flush what we just wrote if necessary.
* XXXUBC simplistic async flushing.
*/
if (!async && oldoff >> 16 != uio->uio_offset >> 16) {
mutex_enter(vp->v_interlock);
error = VOP_PUTPAGES(vp, (oldoff >> 16) << 16,
(uio->uio_offset >> 16) << 16,
PGO_CLEANIT | PGO_JOURNALLOCKED);
if (error)
break;
}
}
out:
if (error == 0 && ioflag & IO_SYNC) {
mutex_enter(vp->v_interlock);
error = VOP_PUTPAGES(vp,
trunc_page(origoff & chmp->chm_fs_bmask),
round_page(blkroundup(chmp, uio->uio_offset)),
PGO_CLEANIT | PGO_SYNCIO | PGO_JOURNALLOCKED);
}
ip->iflag |= IN_CHANGE | IN_UPDATE;
if (resid > uio->uio_resid && ap->a_cred &&
kauth_authorize_generic(ap->a_cred, KAUTH_GENERIC_ISSUSER, NULL)) {
ip->mode &= ~(ISUID | ISGID);
}
if (resid > uio->uio_resid)
VN_KNOTE(vp, NOTE_WRITE | (extended ? NOTE_EXTEND : 0));
if (error) {
(void) UFS_TRUNCATE(vp, osize, ioflag & IO_SYNC, ap->a_cred);
uio->uio_offset -= resid - uio->uio_resid;
uio->uio_resid = resid;
} else if (resid > uio->uio_resid && (ioflag & IO_SYNC) == IO_SYNC)
error = UFS_UPDATE(vp, NULL, NULL, UPDATE_WAIT);
//XXX hack, i write the next line after i know ip->i_size and vp->v_size don't equal
chfs_set_vnode_size(vp, vp->v_size);
//dbg("end file size (vp): %llu\n", (unsigned long long)vp->v_size);
//dbg("end file size (ip): %llu\n", (unsigned long long)ip->i_size);
KASSERT(vp->v_size == ip->size);
fstrans_done(vp->v_mount);
mutex_enter(&chmp->chm_lock_mountfields);
error = chfs_write_flash_vnode(chmp, ip, ALLOC_NORMAL);
mutex_exit(&chmp->chm_lock_mountfields);
//mutex_exit(&ip->inode_lock);
//dbg("end\n");
return (error);
}
/* --------------------------------------------------------------------- */
int
chfs_fsync(void *v)
{
//dbg("fsync\n");
struct vop_fsync_args /* {
struct vnode *a_vp;
kauth_cred_t a_cred;
int a_flags;
off_t offlo;
off_t offhi;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
int wait;
if (ap->a_flags & FSYNC_CACHE) {
return ENODEV;
}
wait = (ap->a_flags & FSYNC_WAIT) != 0;
vflushbuf(vp, wait);
//struct chfs_inode *ip = VTOI(vp);
//chfs_set_vnode_size(vp, ip->write_size);
return 0;
}
/* --------------------------------------------------------------------- */
int
chfs_remove(void *v)
{
struct vnode *dvp = ((struct vop_remove_args *) v)->a_dvp;
struct vnode *vp = ((struct vop_remove_args *) v)->a_vp;
struct componentname *cnp = (((struct vop_remove_args *) v)->a_cnp);
dbg("remove\n");
KASSERT(VOP_ISLOCKED(dvp));
KASSERT(VOP_ISLOCKED(vp));
struct chfs_inode *ip = VTOI(vp);
struct chfs_inode *parent = VTOI(dvp);
int error = 0;
KASSERT(ip->chvc->vno != ip->chvc->pvno);
error = chfs_do_unlink(ip,
parent, cnp->cn_nameptr, cnp->cn_namelen);
vput(dvp);
vput(vp);
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_link(void *v)
{
struct vnode *dvp = ((struct vop_link_args *) v)->a_dvp;
struct vnode *vp = ((struct vop_link_args *) v)->a_vp;
struct componentname *cnp = ((struct vop_link_args *) v)->a_cnp;
struct chfs_inode *ip, *parent;
int error = 0;
if (vp->v_type == VDIR) {
VOP_ABORTOP(dvp, cnp);
error = EISDIR;
goto out;
}
if (dvp->v_mount != vp->v_mount) {
VOP_ABORTOP(dvp, cnp);
error = EXDEV;
goto out;
}
if (dvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE))) {
VOP_ABORTOP(dvp, cnp);
goto out;
}
parent = VTOI(dvp);
ip = VTOI(vp);
error = chfs_do_link(ip,
parent, cnp->cn_nameptr, cnp->cn_namelen, vp->v_type);
if (dvp != vp)
VOP_UNLOCK(vp);
out:
vput(dvp);
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_rename(void *v)
{
struct vnode *fdvp = ((struct vop_rename_args *) v)->a_fdvp;
struct vnode *fvp = ((struct vop_rename_args *) v)->a_fvp;
struct componentname *fcnp = ((struct vop_rename_args *) v)->a_fcnp;
struct vnode *tdvp = ((struct vop_rename_args *) v)->a_tdvp;
struct vnode *tvp = ((struct vop_rename_args *) v)->a_tvp;
struct componentname *tcnp = ((struct vop_rename_args *) v)->a_tcnp;
struct chfs_inode *oldparent, *old;
struct chfs_inode *newparent;
struct chfs_dirent *fd;//, *oldfd;
struct chfs_inode *ip;
int error = 0;
dbg("rename\n");
KASSERT(VOP_ISLOCKED(tdvp));
KASSERT(IMPLIES(tvp != NULL, VOP_ISLOCKED(tvp) == LK_EXCLUSIVE));
oldparent = VTOI(fdvp);
old = VTOI(fvp);
newparent = VTOI(tdvp);
if (tvp) {
dbg("tvp not null\n");
ip = VTOI(tvp);
if (tvp->v_type == VDIR) {
//TODO: lock
// fd = ip->dents;
// while (fd) {
TAILQ_FOREACH(fd, &ip->dents, fds) {
if (fd->vno) {
//TODO: unlock
error = ENOTEMPTY;
goto out_unlocked;
}
// fd = fd->next;
}
//TODO: unlock
}
error = chfs_do_unlink(ip,
newparent, tcnp->cn_nameptr, tcnp->cn_namelen);
vput(tvp);
}
VFS_VGET(tdvp->v_mount, old->ino, &tvp);
ip = VTOI(tvp);
// for (oldfd = oldparent->dents;
// oldfd->vno != old->ino;
// oldfd = oldfd->next);
error = chfs_do_link(ip,
newparent, tcnp->cn_nameptr, tcnp->cn_namelen, tvp->v_type);
error = chfs_do_unlink(old,
oldparent, fcnp->cn_nameptr, fcnp->cn_namelen);
//out:
// if (fchnode != tchnode)
// VOP_UNLOCK(fdvp, 0);
out_unlocked:
// Release target nodes.
if (tdvp == tvp)
vrele(tdvp);
else
vput(tdvp);
if (tvp != NULL)
vput(tvp);
// Release source nodes.
vrele(fdvp);
vrele(fvp);
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_mkdir(void *v)
{
struct vnode *dvp = ((struct vop_mkdir_args *) v)->a_dvp;
struct vnode **vpp = ((struct vop_mkdir_args *)v)->a_vpp;
struct componentname *cnp = ((struct vop_mkdir_args *) v)->a_cnp;
struct vattr *vap = ((struct vop_mkdir_args *) v)->a_vap;
dbg("mkdir()\n");
int mode;
mode = vap->va_mode & ACCESSPERMS;
if ((mode & IFMT) == 0) {
mode |= IFDIR;
}
KASSERT(vap->va_type == VDIR);
return chfs_makeinode(mode, dvp, vpp, cnp, VDIR);
}
/* --------------------------------------------------------------------- */
int
chfs_rmdir(void *v)
{
struct vnode *dvp = ((struct vop_rmdir_args *) v)->a_dvp;
struct vnode *vp = ((struct vop_rmdir_args *) v)->a_vp;
struct componentname *cnp = ((struct vop_rmdir_args *) v)->a_cnp;
dbg("rmdir()\n");
KASSERT(VOP_ISLOCKED(dvp));
KASSERT(VOP_ISLOCKED(vp));
struct chfs_inode *ip = VTOI(vp);
struct chfs_inode *parent = VTOI(dvp);
struct chfs_dirent *fd;
int error = 0;
if (vp->v_type != VDIR) {
error = ENOTDIR;
goto out;
}
KASSERT(ip->chvc->vno != ip->chvc->pvno);
// for (fd = ip->dents; fd; fd = fd->next) {
TAILQ_FOREACH(fd, &ip->dents, fds) {
if (fd->vno) {
error = ENOTEMPTY;
goto out;
}
}
error = chfs_do_unlink(ip,
parent, cnp->cn_nameptr, cnp->cn_namelen);
out:
vput(dvp);
vput(vp);
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_symlink(void *v)
{
struct vnode *dvp = ((struct vop_symlink_args *) v)->a_dvp;
struct vnode **vpp = ((struct vop_symlink_args *) v)->a_vpp;
struct componentname *cnp = ((struct vop_symlink_args *) v)->a_cnp;
struct vattr *vap = ((struct vop_symlink_args *) v)->a_vap;
char *target = ((struct vop_symlink_args *) v)->a_target;
struct ufsmount *ump;
struct chfs_mount *chmp;
struct vnode *vp;
struct chfs_inode *ip;
int len, err;
struct chfs_full_dnode *fd;
struct buf *bp;
dbg("symlink()\n");
ump = VFSTOUFS(dvp->v_mount);
chmp = ump->um_chfs;
err = chfs_makeinode(IFLNK | vap->va_mode, dvp, vpp, cnp, VLNK);
if (err)
return (err);
VN_KNOTE(dvp, NOTE_WRITE);
vp = *vpp;
len = strlen(target);
ip = VTOI(vp);
/* TODO max symlink len instead of "100" */
if (len < 100) {
ip->target = kmem_alloc(len, KM_SLEEP);
memcpy(ip->target, target, len);
chfs_set_vnode_size(vp, len);
ip->iflag |= IN_CHANGE | IN_UPDATE;
bp = getiobuf(vp, true);
bp->b_bufsize = bp->b_resid = len;
bp->b_data = kmem_alloc(len, KM_SLEEP);
memcpy(bp->b_data, target, len);
bp->b_blkno = 0;
fd = chfs_alloc_full_dnode();
mutex_enter(&chmp->chm_lock_mountfields);
err = chfs_write_flash_dnode(chmp, vp, bp, fd);
if (err) {
mutex_exit(&chmp->chm_lock_mountfields);
goto out;
}
err = chfs_add_full_dnode_to_inode(chmp, ip, fd);
if (err) {
mutex_exit(&chmp->chm_lock_mountfields);
goto out;
}
mutex_exit(&chmp->chm_lock_mountfields);
kmem_free(bp->b_data, len);
putiobuf(bp);
uvm_vnp_setsize(vp, len);
} else {
err = vn_rdwr(UIO_WRITE, vp, target, len, (off_t)0,
UIO_SYSSPACE, IO_NODELOCKED, cnp->cn_cred,
(size_t *)0, NULL);
}
out:
if (err)
vput(vp);
return (err);
}
/* --------------------------------------------------------------------- */
int
chfs_readdir(void *v)
{
struct vnode *vp = ((struct vop_readdir_args *) v)->a_vp;
struct uio *uio = ((struct vop_readdir_args *) v)->a_uio;
int *eofflag = ((struct vop_readdir_args *) v)->a_eofflag;
int error = 0;
off_t skip, offset;
struct chfs_inode *ip;
struct chfs_dirent *fd;
struct ufsmount *ump;
struct chfs_mount *chmp;
struct chfs_vnode_cache *chvc;
KASSERT(VOP_ISLOCKED(vp));
/* This operation only makes sense on directory nodes. */
if (vp->v_type != VDIR) {
error = ENOTDIR;
goto out;
}
ip = VTOI(vp);
/* uiomove in chfs_filldir automatically increments the
* uio_offset by an arbitrary size, so we discard any change
* to uio_offset and set it to our own value on return
*/
offset = uio->uio_offset;
if (offset == CHFS_OFFSET_DOT) {
error = chfs_filldir(uio, ip->ino, ".", 1, VDIR);
if (error == -1) {
error = 0;
goto outok;
} else if (error != 0)
goto outok;
offset = CHFS_OFFSET_DOTDOT;
}
if (offset == CHFS_OFFSET_DOTDOT) {
ump = VFSTOUFS(vp->v_mount);
chmp = ump->um_chfs;
mutex_enter(&chmp->chm_lock_vnocache);
chvc = chfs_vnode_cache_get(chmp, ip->ino);
mutex_exit(&chmp->chm_lock_vnocache);
error = chfs_filldir(uio, chvc->pvno, "..", 2, VDIR);
if (error == -1) {
error = 0;
goto outok;
} else if (error != 0) {
goto outok;
}
if (TAILQ_EMPTY(&ip->dents)) {
offset = CHFS_OFFSET_EOF;
} else {
offset = CHFS_OFFSET_FIRST;
}
}
if (offset != CHFS_OFFSET_EOF) {
skip = offset - CHFS_OFFSET_FIRST;
TAILQ_FOREACH(fd, &ip->dents, fds) {
/* seek to offset by skipping items */
/* XXX race conditions by changed dirent? */
if (skip > 0) {
skip--;
continue;
}
if (fd->vno != 0) {
error = chfs_filldir(uio, fd->vno,
fd->name, fd->nsize, fd->type);
if (error == -1) {
error = 0;
goto outok;
} else if (error != 0) {
dbg("err %d\n", error);
goto outok;
}
}
offset++;
}
}
offset = CHFS_OFFSET_EOF;
outok:
uio->uio_offset = offset;
if (eofflag != NULL) {
*eofflag = (error == 0 &&
uio->uio_offset == CHFS_OFFSET_EOF);
}
out:
KASSERT(VOP_ISLOCKED(vp));
return error;
}
/* --------------------------------------------------------------------- */
int
chfs_readlink(void *v)
{
struct vnode *vp = ((struct vop_readlink_args *) v)->a_vp;
struct uio *uio = ((struct vop_readlink_args *) v)->a_uio;
kauth_cred_t cred = ((struct vop_readlink_args *) v)->a_cred;
struct chfs_inode *ip = VTOI(vp);
dbg("readlink()\n");
/* TODO max symlink len instead of "100" */
if (ip->size < 100) {
uiomove(ip->target, ip->size, uio);
return (0);
}
return (VOP_READ(vp, uio, 0, cred));
}
/* --------------------------------------------------------------------- */
int
chfs_inactive(void *v)
{
struct vnode *vp = ((struct vop_inactive_args *) v)->a_vp;
struct chfs_inode *ip = VTOI(vp);
struct chfs_vnode_cache *chvc;
dbg("inactive | vno: %llu\n", (unsigned long long)ip->ino);
KASSERT(VOP_ISLOCKED(vp));
if (ip->ino) {
chvc = ip->chvc;
if (chvc->nlink)
*((struct vop_inactive_args *) v)->a_recycle = 0;
} else {
*((struct vop_inactive_args *) v)->a_recycle = 1;
}
VOP_UNLOCK(vp);
return 0;
}
/* --------------------------------------------------------------------- */
int
chfs_reclaim(void *v)
{
struct vop_reclaim_args *ap = v;
struct vnode *vp = ap->a_vp;
struct chfs_inode *ip = VTOI(vp);
struct chfs_mount *chmp = ip->chmp;
struct chfs_dirent *fd;
//dbg("reclaim() | ino: %llu\n", (unsigned long long)ip->ino);
//mutex_enter(&ip->inode_lock);
mutex_enter(&chmp->chm_lock_vnocache);
chfs_vnode_cache_set_state(chmp,
ip->chvc, VNO_STATE_CHECKEDABSENT);
mutex_exit(&chmp->chm_lock_vnocache);
chfs_update(vp, NULL, NULL, UPDATE_CLOSE);
if (vp->v_type == VREG || vp->v_type == VLNK || vp->v_type == VCHR ||
vp->v_type == VBLK || vp->v_type == VFIFO || vp->v_type == VSOCK)
chfs_kill_fragtree(&ip->fragtree);
fd = TAILQ_FIRST(&ip->dents);
while(fd) {
TAILQ_REMOVE(&ip->dents, fd, fds);
chfs_free_dirent(fd);
fd = TAILQ_FIRST(&ip->dents);
}
//mutex_exit(&ip->inode_lock);
//mutex_destroy(&ip->inode_lock);
cache_purge(vp);
if (ip->devvp) {
vrele(ip->devvp);
ip->devvp = 0;
}
chfs_ihashrem(ip);
genfs_node_destroy(vp);
pool_put(&chfs_inode_pool, vp->v_data);
vp->v_data = NULL;
return (0);
}
/* --------------------------------------------------------------------- */
int
chfs_advlock(void *v)
{
//struct vnode *vp = ((struct vop_advlock_args *) v)->a_vp;
dbg("advlock()\n");
/*
struct chfs_node *node;
node = VP_TO_CHFS_NODE(vp);
return lf_advlock(v, &node->chn_lockf, node->chn_size);
*/
return 0;
}
/* --------------------------------------------------------------------- */
int
chfs_strategy(void *v)
{
struct vop_strategy_args /* {
const struct vnodeop_desc *a_desc;
struct vnode *a_vp;
struct buf *a_bp;
} */ *ap = v;
struct chfs_full_dnode *fd;
struct buf *bp = ap->a_bp;
struct vnode *vp = ap->a_vp;
struct chfs_inode *ip = VTOI(vp);
struct chfs_mount *chmp = ip->chmp;
int read = (bp->b_flags & B_READ) ? 1 : 0;
int err = 0;
/* dbg("bp dump:\n");
dbg(" ->b_bcount: %d\n", bp->b_bcount);
dbg(" ->b_resid: %d\n", bp->b_resid);
dbg(" ->b_blkno: %llu\n", (unsigned long long)bp->b_blkno);
dbg(" ->b_error: %d\n", bp->b_error);*/
if (read) {
err = chfs_read_data(chmp, vp, bp);
} else {
fd = chfs_alloc_full_dnode();
mutex_enter(&chmp->chm_lock_mountfields);
err = chfs_write_flash_dnode(chmp, vp, bp, fd);
if (err) {
mutex_exit(&chmp->chm_lock_mountfields);
goto out;
}
err = chfs_add_full_dnode_to_inode(chmp, ip, fd);
/*if (err) {
mutex_exit(&chmp->chm_lock_mountfields);
goto out;
}*/
mutex_exit(&chmp->chm_lock_mountfields);
}
out:
biodone(bp);
//dbg("end\n");
return err;
}
int
chfs_bmap(void *v)
{
struct vop_bmap_args /* {
struct vnode *a_vp;
daddr_t a_bn;
struct vnode **a_vpp;
daddr_t *a_bnp;
int *a_runp;
int *a_runb;
} */ *ap = v;
if (ap->a_vpp != NULL)
*ap->a_vpp = ap->a_vp;
if (ap->a_bnp != NULL)
*ap->a_bnp = ap->a_bn;
if (ap->a_runp != NULL)
*ap->a_runp = 0;
return (0);
}
/*
* vnode operations vector used for files stored in a chfs file system.
*/
int
(**chfs_vnodeop_p)(void *);
const struct vnodeopv_entry_desc chfs_vnodeop_entries[] =
{
{ &vop_default_desc, vn_default_error },
{ &vop_lookup_desc, chfs_lookup },
{ &vop_create_desc, chfs_create },
{ &vop_mknod_desc, chfs_mknod },
{ &vop_open_desc, chfs_open },
{ &vop_close_desc, chfs_close },
{ &vop_access_desc, chfs_access },
{ &vop_getattr_desc, chfs_getattr },
{ &vop_setattr_desc, chfs_setattr },
{ &vop_read_desc, chfs_read },
{ &vop_write_desc, chfs_write },
{ &vop_ioctl_desc, genfs_enoioctl },
{ &vop_fcntl_desc, genfs_fcntl },
{ &vop_poll_desc, genfs_poll },
{ &vop_kqfilter_desc, genfs_kqfilter },
{ &vop_revoke_desc, genfs_revoke },
{ &vop_mmap_desc, genfs_mmap },
{ &vop_fsync_desc, chfs_fsync },
{ &vop_seek_desc, genfs_seek },
{ &vop_remove_desc, chfs_remove },
{ &vop_link_desc, chfs_link },
{ &vop_rename_desc, chfs_rename },
{ &vop_mkdir_desc, chfs_mkdir },
{ &vop_rmdir_desc, chfs_rmdir },
{ &vop_symlink_desc, chfs_symlink },
{ &vop_readdir_desc, chfs_readdir },
{ &vop_readlink_desc, chfs_readlink },
{ &vop_abortop_desc, genfs_abortop },
{ &vop_inactive_desc, chfs_inactive },
{ &vop_reclaim_desc, chfs_reclaim },
{ &vop_lock_desc, genfs_lock },
{ &vop_unlock_desc, genfs_unlock },
{ &vop_bmap_desc, chfs_bmap },
{ &vop_strategy_desc, chfs_strategy },
{ &vop_print_desc, ufs_print },
{ &vop_pathconf_desc, ufs_pathconf },
{ &vop_islocked_desc, genfs_islocked },
{ &vop_advlock_desc, chfs_advlock },
{ &vop_bwrite_desc, vn_bwrite },
{ &vop_getpages_desc, genfs_getpages },
{ &vop_putpages_desc, genfs_putpages },
{ NULL, NULL } };
const struct vnodeopv_desc chfs_vnodeop_opv_desc =
{ &chfs_vnodeop_p, chfs_vnodeop_entries };
/* --------------------------------------------------------------------- */
/*
* vnode operations vector used for special devices stored in a chfs
* file system.
*/
int
(**chfs_specop_p)(void *);
const struct vnodeopv_entry_desc chfs_specop_entries[] =
{
{ &vop_default_desc, vn_default_error },
{ &vop_lookup_desc, spec_lookup },
{ &vop_create_desc, spec_create },
{ &vop_mknod_desc, spec_mknod },
{ &vop_open_desc, spec_open },
{ &vop_close_desc, ufsspec_close },
{ &vop_access_desc, chfs_access },
{ &vop_getattr_desc, chfs_getattr },
{ &vop_setattr_desc, chfs_setattr },
{ &vop_read_desc, chfs_read },
{ &vop_write_desc, chfs_write },
{ &vop_ioctl_desc, spec_ioctl },
{ &vop_fcntl_desc, genfs_fcntl },
{ &vop_poll_desc, spec_poll },
{ &vop_kqfilter_desc, spec_kqfilter },
{ &vop_revoke_desc, spec_revoke },
{ &vop_mmap_desc, spec_mmap },
{ &vop_fsync_desc, spec_fsync },
{ &vop_seek_desc, spec_seek },
{ &vop_remove_desc, spec_remove },
{ &vop_link_desc, spec_link },
{ &vop_rename_desc, spec_rename },
{ &vop_mkdir_desc, spec_mkdir },
{ &vop_rmdir_desc, spec_rmdir },
{ &vop_symlink_desc, spec_symlink },
{ &vop_readdir_desc, spec_readdir },
{ &vop_readlink_desc, spec_readlink },
{ &vop_abortop_desc, spec_abortop },
{ &vop_inactive_desc, chfs_inactive },
{ &vop_reclaim_desc, chfs_reclaim },
{ &vop_lock_desc, genfs_lock },
{ &vop_unlock_desc, genfs_unlock },
{ &vop_bmap_desc, spec_bmap },
{ &vop_strategy_desc, spec_strategy },
{ &vop_print_desc, ufs_print },
{ &vop_pathconf_desc, spec_pathconf },
{ &vop_islocked_desc, genfs_islocked },
{ &vop_advlock_desc, spec_advlock },
{ &vop_bwrite_desc, vn_bwrite },
{ &vop_getpages_desc, spec_getpages },
{ &vop_putpages_desc, spec_putpages },
{ NULL, NULL } };
const struct vnodeopv_desc chfs_specop_opv_desc =
{ &chfs_specop_p, chfs_specop_entries };
/* --------------------------------------------------------------------- */
/*
* vnode operations vector used for fifos stored in a chfs file system.
*/
int
(**chfs_fifoop_p)(void *);
const struct vnodeopv_entry_desc chfs_fifoop_entries[] =
{
{ &vop_default_desc, vn_default_error },
{ &vop_lookup_desc, vn_fifo_bypass },
{ &vop_create_desc, vn_fifo_bypass },
{ &vop_mknod_desc, vn_fifo_bypass },
{ &vop_open_desc, vn_fifo_bypass },
{ &vop_close_desc, ufsfifo_close },
{ &vop_access_desc, chfs_access },
{ &vop_getattr_desc, chfs_getattr },
{ &vop_setattr_desc, chfs_setattr },
{ &vop_read_desc, ufsfifo_read },
{ &vop_write_desc, ufsfifo_write },
{ &vop_ioctl_desc, vn_fifo_bypass },
{ &vop_fcntl_desc, genfs_fcntl },
{ &vop_poll_desc, vn_fifo_bypass },
{ &vop_kqfilter_desc, vn_fifo_bypass },
{ &vop_revoke_desc, vn_fifo_bypass },
{ &vop_mmap_desc, vn_fifo_bypass },
{ &vop_fsync_desc, vn_fifo_bypass },
{ &vop_seek_desc, vn_fifo_bypass },
{ &vop_remove_desc, vn_fifo_bypass },
{ &vop_link_desc, vn_fifo_bypass },
{ &vop_rename_desc, vn_fifo_bypass },
{ &vop_mkdir_desc, vn_fifo_bypass },
{ &vop_rmdir_desc, vn_fifo_bypass },
{ &vop_symlink_desc, vn_fifo_bypass },
{ &vop_readdir_desc, vn_fifo_bypass },
{ &vop_readlink_desc, vn_fifo_bypass },
{ &vop_abortop_desc, vn_fifo_bypass },
{ &vop_inactive_desc, chfs_inactive },
{ &vop_reclaim_desc, chfs_reclaim },
{ &vop_lock_desc, genfs_lock },
{ &vop_unlock_desc, genfs_unlock },
{ &vop_bmap_desc, vn_fifo_bypass },
{ &vop_strategy_desc, vn_fifo_bypass },
{ &vop_print_desc, ufs_print },
{ &vop_pathconf_desc, vn_fifo_bypass },
{ &vop_islocked_desc, genfs_islocked },
{ &vop_advlock_desc, vn_fifo_bypass },
{ &vop_bwrite_desc, genfs_nullop },
{ &vop_getpages_desc, genfs_badop },
{ &vop_putpages_desc, vn_fifo_bypass },
{ NULL, NULL } };
const struct vnodeopv_desc chfs_fifoop_opv_desc =
{ &chfs_fifoop_p, chfs_fifoop_entries };
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