[unix-history] / usr / src / sys / ufs / lfs / lfs_vnops.c

/*
 * Copyright (c) 1986, 1989, 1991 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)lfs_vnops.c	7.97 (Berkeley) %G%
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/resourcevar.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/malloc.h>

#include <vm/vm.h>

#include <miscfs/specfs/specdev.h>
#include <miscfs/fifofs/fifo.h>

#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/ufs_extern.h>

#include <ufs/lfs/lfs.h>
#include <ufs/lfs/lfs_extern.h>

/* Global vfs data structures for lfs. */
int (**lfs_vnodeop_p)();
struct vnodeopv_entry_desc lfs_vnodeop_entries[] = {
	{ &vop_default_desc, vn_default_error },
	{ &vop_lookup_desc, ufs_lookup },		/* lookup */
	{ &vop_create_desc, ufs_create },		/* create */
	{ &vop_mknod_desc, ufs_mknod },			/* mknod */
	{ &vop_open_desc, ufs_open },			/* open */
	{ &vop_close_desc, lfs_close },			/* close */
	{ &vop_access_desc, ufs_access },		/* access */
	{ &vop_getattr_desc, lfs_getattr },		/* getattr */
	{ &vop_setattr_desc, ufs_setattr },		/* setattr */
	{ &vop_read_desc, lfs_read },			/* read */
	{ &vop_write_desc, lfs_write },			/* write */
	{ &vop_ioctl_desc, ufs_ioctl },			/* ioctl */
	{ &vop_select_desc, ufs_select },		/* select */
	{ &vop_mmap_desc, ufs_mmap },			/* mmap */
	{ &vop_fsync_desc, lfs_fsync },			/* fsync */
	{ &vop_seek_desc, ufs_seek },			/* seek */
	{ &vop_remove_desc, ufs_remove },		/* remove */
	{ &vop_link_desc, ufs_link },			/* link */
	{ &vop_rename_desc, ufs_rename },		/* rename */
	{ &vop_mkdir_desc, ufs_mkdir },			/* mkdir */
	{ &vop_rmdir_desc, ufs_rmdir },			/* rmdir */
	{ &vop_symlink_desc, ufs_symlink },		/* symlink */
	{ &vop_readdir_desc, ufs_readdir },		/* readdir */
	{ &vop_readlink_desc, ufs_readlink },		/* readlink */
	{ &vop_abortop_desc, ufs_abortop },		/* abortop */
	{ &vop_inactive_desc, ufs_inactive },		/* inactive */
	{ &vop_reclaim_desc, ufs_reclaim },		/* reclaim */
	{ &vop_lock_desc, ufs_lock },			/* lock */
	{ &vop_unlock_desc, ufs_unlock },		/* unlock */
	{ &vop_bmap_desc, ufs_bmap },			/* bmap */
	{ &vop_strategy_desc, ufs_strategy },		/* strategy */
	{ &vop_print_desc, ufs_print },			/* print */
	{ &vop_islocked_desc, ufs_islocked },		/* islocked */
	{ &vop_advlock_desc, ufs_advlock },		/* advlock */
	{ &vop_blkatoff_desc, lfs_blkatoff },		/* blkatoff */
	{ &vop_valloc_desc, lfs_valloc },		/* valloc */
	{ &vop_vfree_desc, lfs_vfree },			/* vfree */
	{ &vop_truncate_desc, lfs_truncate },		/* truncate */
	{ &vop_update_desc, lfs_update },		/* update */
	{ &vop_bwrite_desc, lfs_bwrite },		/* bwrite */
	{ (struct vnodeop_desc*)NULL, (int(*)())NULL }
};
struct vnodeopv_desc lfs_vnodeop_opv_desc =
	{ &lfs_vnodeop_p, lfs_vnodeop_entries };

int (**lfs_specop_p)();
struct vnodeopv_entry_desc lfs_specop_entries[] = {
	{ &vop_default_desc, vn_default_error },
	{ &vop_lookup_desc, spec_lookup },		/* lookup */
	{ &vop_create_desc, spec_create },		/* create */
	{ &vop_mknod_desc, spec_mknod },		/* mknod */
	{ &vop_open_desc, spec_open },			/* open */
	{ &vop_close_desc, ufsspec_close },		/* close */
	{ &vop_access_desc, ufs_access },		/* access */
	{ &vop_getattr_desc, lfs_getattr },		/* getattr */
	{ &vop_setattr_desc, ufs_setattr },		/* setattr */
	{ &vop_read_desc, ufsspec_read },		/* read */
	{ &vop_write_desc, ufsspec_write },		/* write */
	{ &vop_ioctl_desc, spec_ioctl },		/* ioctl */
	{ &vop_select_desc, spec_select },		/* select */
	{ &vop_mmap_desc, spec_mmap },			/* mmap */
	{ &vop_fsync_desc, spec_fsync },		/* fsync */
	{ &vop_seek_desc, spec_seek },			/* seek */
	{ &vop_remove_desc, spec_remove },		/* remove */
	{ &vop_link_desc, spec_link },			/* link */
	{ &vop_rename_desc, spec_rename },		/* rename */
	{ &vop_mkdir_desc, spec_mkdir },		/* mkdir */
	{ &vop_rmdir_desc, spec_rmdir },		/* rmdir */
	{ &vop_symlink_desc, spec_symlink },		/* symlink */
	{ &vop_readdir_desc, spec_readdir },		/* readdir */
	{ &vop_readlink_desc, spec_readlink },		/* readlink */
	{ &vop_abortop_desc, spec_abortop },		/* abortop */
	{ &vop_inactive_desc, ufs_inactive },		/* inactive */
	{ &vop_reclaim_desc, ufs_reclaim },		/* reclaim */
	{ &vop_lock_desc, ufs_lock },			/* lock */
	{ &vop_unlock_desc, ufs_unlock },		/* unlock */
	{ &vop_bmap_desc, spec_bmap },			/* bmap */
	{ &vop_strategy_desc, spec_strategy },		/* strategy */
	{ &vop_print_desc, ufs_print },			/* print */
	{ &vop_islocked_desc, ufs_islocked },		/* islocked */
	{ &vop_advlock_desc, spec_advlock },		/* advlock */
	{ &vop_blkatoff_desc, spec_blkatoff },		/* blkatoff */
	{ &vop_valloc_desc, spec_valloc },		/* valloc */
	{ &vop_vfree_desc, lfs_vfree },			/* vfree */
	{ &vop_truncate_desc, spec_truncate },		/* truncate */
	{ &vop_update_desc, lfs_update },		/* update */
	{ &vop_bwrite_desc, lfs_bwrite },		/* bwrite */
	{ (struct vnodeop_desc*)NULL, (int(*)())NULL }
};
struct vnodeopv_desc lfs_specop_opv_desc =
	{ &lfs_specop_p, lfs_specop_entries };

#ifdef FIFO
int (**lfs_fifoop_p)();
struct vnodeopv_entry_desc lfs_fifoop_entries[] = {
	{ &vop_default_desc, vn_default_error },
	{ &vop_lookup_desc, fifo_lookup },		/* lookup */
	{ &vop_create_desc, fifo_create },		/* create */
	{ &vop_mknod_desc, fifo_mknod },		/* mknod */
	{ &vop_open_desc, fifo_open },			/* open */
	{ &vop_close_desc, ufsfifo_close },		/* close */
	{ &vop_access_desc, ufs_access },		/* access */
	{ &vop_getattr_desc, lfs_getattr },		/* getattr */
	{ &vop_setattr_desc, ufs_setattr },		/* setattr */
	{ &vop_read_desc, ufsfifo_read },		/* read */
	{ &vop_write_desc, ufsfifo_write },		/* write */
	{ &vop_ioctl_desc, fifo_ioctl },		/* ioctl */
	{ &vop_select_desc, fifo_select },		/* select */
	{ &vop_mmap_desc, fifo_mmap },			/* mmap */
	{ &vop_fsync_desc, fifo_fsync },		/* fsync */
	{ &vop_seek_desc, fifo_seek },			/* seek */
	{ &vop_remove_desc, fifo_remove },		/* remove */
	{ &vop_link_desc, fifo_link },			/* link */
	{ &vop_rename_desc, fifo_rename },		/* rename */
	{ &vop_mkdir_desc, fifo_mkdir },		/* mkdir */
	{ &vop_rmdir_desc, fifo_rmdir },		/* rmdir */
	{ &vop_symlink_desc, fifo_symlink },		/* symlink */
	{ &vop_readdir_desc, fifo_readdir },		/* readdir */
	{ &vop_readlink_desc, fifo_readlink },		/* readlink */
	{ &vop_abortop_desc, fifo_abortop },		/* abortop */
	{ &vop_inactive_desc, ufs_inactive },		/* inactive */
	{ &vop_reclaim_desc, ufs_reclaim },		/* reclaim */
	{ &vop_lock_desc, ufs_lock },			/* lock */
	{ &vop_unlock_desc, ufs_unlock },		/* unlock */
	{ &vop_bmap_desc, fifo_bmap },			/* bmap */
	{ &vop_strategy_desc, fifo_strategy },		/* strategy */
	{ &vop_print_desc, ufs_print },			/* print */
	{ &vop_islocked_desc, ufs_islocked },		/* islocked */
	{ &vop_advlock_desc, fifo_advlock },		/* advlock */
	{ &vop_blkatoff_desc, fifo_blkatoff },		/* blkatoff */
	{ &vop_valloc_desc, fifo_valloc },		/* valloc */
	{ &vop_vfree_desc, lfs_vfree },			/* vfree */
	{ &vop_truncate_desc, fifo_truncate },		/* truncate */
	{ &vop_update_desc, lfs_update },		/* update */
	{ &vop_bwrite_desc, lfs_bwrite },		/* bwrite */
	{ (struct vnodeop_desc*)NULL, (int(*)())NULL }
};
struct vnodeopv_desc lfs_fifoop_opv_desc =
	{ &lfs_fifoop_p, lfs_fifoop_entries };
#endif /* FIFO */

/*
 * Vnode op for reading.
 */
/* ARGSUSED */
lfs_read(ap)
	struct vop_read_args /* {
		struct vnode *a_vp;
		struct uio *a_uio;
		int a_ioflag;
		struct ucred *a_cred;
	} */ *ap;
{
	register struct vnode *vp = ap->a_vp;
	register struct inode *ip = VTOI(vp);
	register struct uio *uio = ap->a_uio;
	register struct lfs *fs;
	struct buf *bp;
	daddr_t lbn, bn, rablock;
	off_t diff;
	int type, error = 0, size;
	long n, on;

	type = ip->i_mode & IFMT;
#ifdef DIAGNOSTIC
	if (uio->uio_rw != UIO_READ)
		panic("lfs_read mode");
	if (type != IFDIR && type != IFREG && type != IFLNK)
		panic("lfs_read type");
	if (type == IFLNK && (int)ip->i_size < vp->v_mount->mnt_maxsymlinklen)
		panic("read short symlink");
#endif
	if (uio->uio_resid == 0)
		return (0);
	fs = ip->i_lfs;
	if (uio->uio_offset < 0 ||
	    (u_quad_t)uio->uio_offset + uio->uio_resid > fs->lfs_maxfilesize)
		return (EFBIG);
	ip->i_flag |= IACC;
	do {
		lbn = lblkno(fs, uio->uio_offset);
		on = blkoff(fs, uio->uio_offset);
		n = min((unsigned)(fs->lfs_bsize - on), uio->uio_resid);
		diff = ip->i_size - uio->uio_offset;
		if (diff <= 0)
			break;
		if (diff < n)
			n = diff;
		size = blksize(fs);
		lfs_check(vp, lbn);
		error = cluster_read(vp, ip->i_size, lbn, size, NOCRED, &bp);
		vp->v_lastr = lbn;
		n = min(n, size - bp->b_resid);
		if (error)
			break;
		error = uiomove(bp->b_un.b_addr + on, (int)n, uio);
		if (type == IFREG &&
		    n + on == fs->lfs_bsize || uio->uio_offset == ip->i_size)
			bp->b_flags |= B_AGE;
		brelse(bp);
	} while (error == 0 && uio->uio_resid > 0 && n != 0);
	return (error);
}

/*
 * Vnode op for writing.
 */
lfs_write(ap)
	struct vop_write_args /* {
		struct vnode *a_vp;
		struct uio *a_uio;
		int a_ioflag;
		struct ucred *a_cred;
	} */ *ap;
{
	register struct vnode *vp = ap->a_vp;
	register struct uio *uio = ap->a_uio;
	struct proc *p = uio->uio_procp;
	register struct inode *ip = VTOI(vp);
	register struct lfs *fs;
	register ioflag = ap->a_ioflag;
	struct timeval tv;
	struct buf *bp;
	daddr_t lbn;
	off_t osize;
	int n, on, flags, newblock;
	int size, resid, error = 0;

#ifdef DIAGNOSTIC
	if (uio->uio_rw != UIO_WRITE)
		panic("lfs_write mode");
#endif
	switch (vp->v_type) {
	case VREG:
		if (ioflag & IO_APPEND)
			uio->uio_offset = ip->i_size;
		/* fall through */
	case VLNK:
		break;

	case VDIR:
		/* XXX This may not be correct for LFS. */
		if ((ioflag & IO_SYNC) == 0)
			panic("lfs_write nonsync dir write");
		break;

	default:
		panic("lfs_write type");
	}
	if (uio->uio_offset < 0)
		return (EINVAL);
	if (uio->uio_resid == 0)
		return (0);
	/*
	 * Maybe this should be above the vnode op call, but so long as
	 * file servers have no limits, i don't think it matters
	 */
	if (vp->v_type == VREG && p &&
	    uio->uio_offset + uio->uio_resid >
	      p->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
		psignal(p, SIGXFSZ);
		return (EFBIG);
	}
	resid = uio->uio_resid;
	osize = ip->i_size;
	fs = ip->i_lfs;						/* LFS */
	if (uio->uio_offset < 0 ||
	    (u_quad_t)uio->uio_offset + uio->uio_resid > fs->lfs_maxfilesize)
		return (EFBIG);

	do {
		lbn = lblkno(fs, uio->uio_offset);
		on = blkoff(fs, uio->uio_offset);
		n = min((unsigned)(fs->lfs_bsize - on), uio->uio_resid);
		lfs_check(vp, lbn);
		if (error = lfs_balloc(vp, n, lbn, &bp))
			break;
		if (uio->uio_offset + n > ip->i_size) {
			ip->i_size = uio->uio_offset + n;
			vnode_pager_setsize(vp, (u_long)ip->i_size);
		}
		size = blksize(fs);
		(void) vnode_pager_uncache(vp);
		n = min(n, size - bp->b_resid);
		error = uiomove(bp->b_un.b_addr + on, n, uio);
		error = VOP_BWRITE(bp);
		/* XXX Why is this in the loop? */
		if (ap->a_cred && ap->a_cred->cr_uid != 0)
			ip->i_mode &= ~(ISUID|ISGID);
	} while (error == 0 && uio->uio_resid > 0 && n != 0);

	if (error) {
		if (ioflag & IO_UNIT) {
			(void)VOP_TRUNCATE(vp, osize, ioflag & IO_SYNC,
			    ap->a_cred, uio->uio_procp);
			uio->uio_offset -= resid - uio->uio_resid;
			uio->uio_resid = resid;
		}
	} 

	/* TURN OFF SYNC FOR NOW
	if (!error && (ioflag & IO_SYNC)) {
		tv = time;
		if (!(error = VOP_UPDATE(vp, &tv, &tv, 1)))
			error = VOP_FSYNC(vp, ap->a_cred, MNT_WAIT,
			    uio->uio_procp);
	}
	*/
	return (error);
}

/*
 * Synch an open file.
 */
/* ARGSUSED */
lfs_fsync(ap)
	struct vop_fsync_args /* {
		struct vnode *a_vp;
		struct ucred *a_cred;
		int a_waitfor;
		struct proc *a_p;
	} */ *ap;
{
	struct timeval tv;

	tv = time;
	return (VOP_UPDATE(ap->a_vp, &tv, &tv,
	    ap->a_waitfor == MNT_WAIT ? LFS_SYNC : 0));
}

/*
 * These macros are used to bracket UFS directory ops, so that we can
 * identify all the pages touched during directory ops which need to
 * be ordered and flushed atomically, so that they may be recovered.
 */
#define	SET_DIROP(fs) {							\
	if ((fs)->lfs_writer)						\
		tsleep(&(fs)->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0);	\
	++(fs)->lfs_dirops;						\
	(fs)->lfs_doifile = 1;						\
}

#define	SET_ENDOP(fs) {							\
	--(fs)->lfs_dirops;						\
	if (!(fs)->lfs_dirops)						\
		wakeup(&(fs)->lfs_writer);				\
}

#define	MARK_VNODE(dvp)	(dvp)->v_flag |= VDIROP

int
lfs_symlink(ap)
	struct vop_symlink_args /* {
		struct vnode *a_dvp;
		struct vnode **a_vpp;
		struct componentname *a_cnp;
		struct vattr *a_vap;
		char *a_target;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	MARK_VNODE(ap->a_dvp);
	ret = ufs_symlink(ap);
	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	return (ret);
}

int
lfs_mknod(ap)
	struct vop_mknod_args /* {
		struct vnode *a_dvp;
		struct vnode **a_vpp;
		struct componentname *a_cnp;
		struct vattr *a_vap;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	MARK_VNODE(ap->a_dvp);
	ret = ufs_mknod(ap);
	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	return (ret);
}

int
lfs_create(ap)
	struct vop_create_args /* {
		struct vnode *a_dvp;
		struct vnode **a_vpp;
		struct componentname *a_cnp;
		struct vattr *a_vap;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	MARK_VNODE(ap->a_dvp);
	ret = ufs_create(ap);
	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	return (ret);
}

int
lfs_mkdir(ap)
	struct vop_mkdir_args /* {
		struct vnode *a_dvp;
		struct vnode **a_vpp;
		struct componentname *a_cnp;
		struct vattr *a_vap;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	MARK_VNODE(ap->a_dvp);
	ret = ufs_mkdir(ap);
	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	return (ret);
}

int
lfs_remove(ap)
	struct vop_remove_args /* {
		struct vnode *a_dvp;
		struct vnode *a_vp;
		struct componentname *a_cnp;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	MARK_VNODE(ap->a_dvp);
	MARK_VNODE(ap->a_vp);
	ret = ufs_remove(ap);
	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	return (ret);
}

int
lfs_rmdir(ap)
	struct vop_rmdir_args /* {
		struct vnodeop_desc *a_desc;
		struct vnode *a_dvp;
		struct vnode *a_vp;
		struct componentname *a_cnp;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	MARK_VNODE(ap->a_dvp);
	MARK_VNODE(ap->a_vp);
	ret = ufs_rmdir(ap);
	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	return (ret);
}

int
lfs_link(ap)
	struct vop_link_args /* {
		struct vnode *a_vp;
		struct vnode *a_tdvp;
		struct componentname *a_cnp;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_vp)->i_lfs);
	MARK_VNODE(ap->a_vp);
	ret = ufs_link(ap);
	SET_ENDOP(VTOI(ap->a_vp)->i_lfs);
	return (ret);
}

int
lfs_rename(ap)
	struct vop_rename_args  /* {
		struct vnode *a_fdvp;
		struct vnode *a_fvp;
		struct componentname *a_fcnp;
		struct vnode *a_tdvp;
		struct vnode *a_tvp;
		struct componentname *a_tcnp;
	} */ *ap;
{
	int ret;

	SET_DIROP(VTOI(ap->a_fdvp)->i_lfs);
	MARK_VNODE(ap->a_fdvp);
	MARK_VNODE(ap->a_tdvp);
	ret = ufs_rename(ap);
	SET_ENDOP(VTOI(ap->a_fdvp)->i_lfs);
	return (ret);
}
/* XXX hack to avoid calling ITIMES in getattr */
int
lfs_getattr(ap)
	struct vop_getattr_args /* {
		struct vnode *a_vp;
		struct vattr *a_vap;
		struct ucred *a_cred;
		struct proc *a_p;
	} */ *ap;
{
	register struct vnode *vp = ap->a_vp;
	register struct inode *ip = VTOI(vp);
	register struct vattr *vap = ap->a_vap;
	/*
	 * Copy from inode table
	 */
	vap->va_fsid = ip->i_dev;
	vap->va_fileid = ip->i_number;
	vap->va_mode = ip->i_mode & ~IFMT;
	vap->va_nlink = ip->i_nlink;
	vap->va_uid = ip->i_uid;
	vap->va_gid = ip->i_gid;
	vap->va_rdev = (dev_t)ip->i_rdev;
	vap->va_size = ip->i_din.di_size;
	vap->va_atime = ip->i_atime;
	vap->va_mtime = ip->i_mtime;
	vap->va_ctime = ip->i_ctime;
	vap->va_flags = ip->i_flags;
	vap->va_gen = ip->i_gen;
	/* this doesn't belong here */
	if (vp->v_type == VBLK)
		vap->va_blocksize = BLKDEV_IOSIZE;
	else if (vp->v_type == VCHR)
		vap->va_blocksize = MAXBSIZE;
	else
		vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
	vap->va_bytes = dbtob(ip->i_blocks);
	vap->va_type = vp->v_type;
	vap->va_filerev = ip->i_modrev;
	return (0);
}
/*
 * Close called
 *
 * XXX -- we were using ufs_close, but since it updates the
 * times on the inode, we might need to bump the uinodes
 * count.
 */
/* ARGSUSED */
int
lfs_close(ap)
	struct vop_close_args /* {
		struct vnode *a_vp;
		int  a_fflag;
		struct ucred *a_cred;
		struct proc *a_p;
	} */ *ap;
{
	register struct vnode *vp = ap->a_vp;
	register struct inode *ip = VTOI(vp);
	int mod;

	if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED)) {
		mod = ip->i_flag & IMOD;
		ITIMES(ip, &time, &time);
		if (!mod && ip->i_flag & IMOD)
			ip->i_lfs->lfs_uinodes++;
	}
	return (0);
}
Commit	Line	Data
da7c5cc6	1	/*
d9f5f868	2	* Copyright (c) 1986, 1989, 1991 Regents of the University of California.
7188ac27	3	* All rights reserved.
da7c5cc6	4	*
b702c21d	5	* %sccs.include.redist.c%
7188ac27	6	*
28f690a6	7	* @(#)lfs_vnops.c 7.97 (Berkeley) %G%
da7c5cc6	8	*/
6459ebe0	9
c7e94c3a KB	10	#include <sys/param.h>
	11	#include <sys/systm.h>
	12	#include <sys/namei.h>
	13	#include <sys/resourcevar.h>
	14	#include <sys/kernel.h>
	15	#include <sys/file.h>
	16	#include <sys/stat.h>
	17	#include <sys/buf.h>
	18	#include <sys/proc.h>
	19	#include <sys/conf.h>
	20	#include <sys/mount.h>
	21	#include <sys/vnode.h>
c7e94c3a KB	22	#include <sys/malloc.h>
c7e94c3a KB	23
80e9de4e KM	24	#include <vm/vm.h>
80e9de4e KM	25
cb38190d KB	26	#include <miscfs/specfs/specdev.h>
	27	#include <miscfs/fifofs/fifo.h>
	28
d9f5f868 KB	29	#include <ufs/ufs/quota.h>
	30	#include <ufs/ufs/inode.h>
	31	#include <ufs/ufs/dir.h>
17135473	32	#include <ufs/ufs/ufsmount.h>
d9f5f868	33	#include <ufs/ufs/ufs_extern.h>
c7e94c3a	34
d9f5f868 KB	35	#include <ufs/lfs/lfs.h>
d9f5f868 KB	36	#include <ufs/lfs/lfs_extern.h>
c7e94c3a KB	37
c7e94c3a KB	38	/* Global vfs data structures for lfs. */
9342689a JH	39	int (**lfs_vnodeop_p)();
	40	struct vnodeopv_entry_desc lfs_vnodeop_entries[] = {
	41	{ &vop_default_desc, vn_default_error },
	42	{ &vop_lookup_desc, ufs_lookup }, /* lookup */
28f690a6 MS	43	{ &vop_create_desc, ufs_create }, /* create */
28f690a6 MS	44	{ &vop_mknod_desc, ufs_mknod }, /* mknod */
56253a3b	45	{ &vop_open_desc, ufs_open }, /* open */
e5b88c97	46	{ &vop_close_desc, lfs_close }, /* close */
9342689a	47	{ &vop_access_desc, ufs_access }, /* access */
17135473	48	{ &vop_getattr_desc, lfs_getattr }, /* getattr */
9342689a	49	{ &vop_setattr_desc, ufs_setattr }, /* setattr */
56253a3b KM	50	{ &vop_read_desc, lfs_read }, /* read */
	51	{ &vop_write_desc, lfs_write }, /* write */
	52	{ &vop_ioctl_desc, ufs_ioctl }, /* ioctl */
9342689a	53	{ &vop_select_desc, ufs_select }, /* select */
56253a3b KM	54	{ &vop_mmap_desc, ufs_mmap }, /* mmap */
	55	{ &vop_fsync_desc, lfs_fsync }, /* fsync */
	56	{ &vop_seek_desc, ufs_seek }, /* seek */
28f690a6 MS	57	{ &vop_remove_desc, ufs_remove }, /* remove */
	58	{ &vop_link_desc, ufs_link }, /* link */
	59	{ &vop_rename_desc, ufs_rename }, /* rename */
	60	{ &vop_mkdir_desc, ufs_mkdir }, /* mkdir */
	61	{ &vop_rmdir_desc, ufs_rmdir }, /* rmdir */
	62	{ &vop_symlink_desc, ufs_symlink }, /* symlink */
9342689a JH	63	{ &vop_readdir_desc, ufs_readdir }, /* readdir */
	64	{ &vop_readlink_desc, ufs_readlink }, /* readlink */
	65	{ &vop_abortop_desc, ufs_abortop }, /* abortop */
28f690a6	66	{ &vop_inactive_desc, ufs_inactive }, /* inactive */
9342689a	67	{ &vop_reclaim_desc, ufs_reclaim }, /* reclaim */
56253a3b	68	{ &vop_lock_desc, ufs_lock }, /* lock */
9342689a	69	{ &vop_unlock_desc, ufs_unlock }, /* unlock */
2a431922	70	{ &vop_bmap_desc, ufs_bmap }, /* bmap */
9342689a	71	{ &vop_strategy_desc, ufs_strategy }, /* strategy */
56253a3b	72	{ &vop_print_desc, ufs_print }, /* print */
9342689a JH	73	{ &vop_islocked_desc, ufs_islocked }, /* islocked */
	74	{ &vop_advlock_desc, ufs_advlock }, /* advlock */
	75	{ &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */
9342689a	76	{ &vop_valloc_desc, lfs_valloc }, /* valloc */
56253a3b	77	{ &vop_vfree_desc, lfs_vfree }, /* vfree */
9342689a JH	78	{ &vop_truncate_desc, lfs_truncate }, /* truncate */
	79	{ &vop_update_desc, lfs_update }, /* update */
	80	{ &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
	81	{ (struct vnodeop_desc)NULL, (int()())NULL }
c7e94c3a	82	};
9342689a JH	83	struct vnodeopv_desc lfs_vnodeop_opv_desc =
9342689a JH	84	{ &lfs_vnodeop_p, lfs_vnodeop_entries };
528f664c	85
9342689a JH	86	int (**lfs_specop_p)();
	87	struct vnodeopv_entry_desc lfs_specop_entries[] = {
	88	{ &vop_default_desc, vn_default_error },
	89	{ &vop_lookup_desc, spec_lookup }, /* lookup */
	90	{ &vop_create_desc, spec_create }, /* create */
	91	{ &vop_mknod_desc, spec_mknod }, /* mknod */
56253a3b	92	{ &vop_open_desc, spec_open }, /* open */
9342689a JH	93	{ &vop_close_desc, ufsspec_close }, /* close */
9342689a JH	94	{ &vop_access_desc, ufs_access }, /* access */
17135473	95	{ &vop_getattr_desc, lfs_getattr }, /* getattr */
9342689a JH	96	{ &vop_setattr_desc, ufs_setattr }, /* setattr */
	97	{ &vop_read_desc, ufsspec_read }, /* read */
	98	{ &vop_write_desc, ufsspec_write }, /* write */
	99	{ &vop_ioctl_desc, spec_ioctl }, /* ioctl */
	100	{ &vop_select_desc, spec_select }, /* select */
56253a3b	101	{ &vop_mmap_desc, spec_mmap }, /* mmap */
9342689a	102	{ &vop_fsync_desc, spec_fsync }, /* fsync */
56253a3b	103	{ &vop_seek_desc, spec_seek }, /* seek */
9342689a	104	{ &vop_remove_desc, spec_remove }, /* remove */
56253a3b	105	{ &vop_link_desc, spec_link }, /* link */
9342689a JH	106	{ &vop_rename_desc, spec_rename }, /* rename */
	107	{ &vop_mkdir_desc, spec_mkdir }, /* mkdir */
	108	{ &vop_rmdir_desc, spec_rmdir }, /* rmdir */
	109	{ &vop_symlink_desc, spec_symlink }, /* symlink */
	110	{ &vop_readdir_desc, spec_readdir }, /* readdir */
	111	{ &vop_readlink_desc, spec_readlink }, /* readlink */
	112	{ &vop_abortop_desc, spec_abortop }, /* abortop */
28f690a6	113	{ &vop_inactive_desc, ufs_inactive }, /* inactive */
9342689a	114	{ &vop_reclaim_desc, ufs_reclaim }, /* reclaim */
56253a3b	115	{ &vop_lock_desc, ufs_lock }, /* lock */
9342689a	116	{ &vop_unlock_desc, ufs_unlock }, /* unlock */
56253a3b	117	{ &vop_bmap_desc, spec_bmap }, /* bmap */
9342689a	118	{ &vop_strategy_desc, spec_strategy }, /* strategy */
56253a3b	119	{ &vop_print_desc, ufs_print }, /* print */
9342689a JH	120	{ &vop_islocked_desc, ufs_islocked }, /* islocked */
	121	{ &vop_advlock_desc, spec_advlock }, /* advlock */
	122	{ &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */
9342689a	123	{ &vop_valloc_desc, spec_valloc }, /* valloc */
56253a3b	124	{ &vop_vfree_desc, lfs_vfree }, /* vfree */
9342689a JH	125	{ &vop_truncate_desc, spec_truncate }, /* truncate */
	126	{ &vop_update_desc, lfs_update }, /* update */
	127	{ &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
	128	{ (struct vnodeop_desc)NULL, (int()())NULL }
a2d9885d	129	};
9342689a JH	130	struct vnodeopv_desc lfs_specop_opv_desc =
9342689a JH	131	{ &lfs_specop_p, lfs_specop_entries };
a2d9885d KM	132
a2d9885d KM	133	#ifdef FIFO
9342689a JH	134	int (**lfs_fifoop_p)();
	135	struct vnodeopv_entry_desc lfs_fifoop_entries[] = {
	136	{ &vop_default_desc, vn_default_error },
	137	{ &vop_lookup_desc, fifo_lookup }, /* lookup */
	138	{ &vop_create_desc, fifo_create }, /* create */
	139	{ &vop_mknod_desc, fifo_mknod }, /* mknod */
56253a3b	140	{ &vop_open_desc, fifo_open }, /* open */
9342689a JH	141	{ &vop_close_desc, ufsfifo_close }, /* close */
9342689a JH	142	{ &vop_access_desc, ufs_access }, /* access */
17135473	143	{ &vop_getattr_desc, lfs_getattr }, /* getattr */
9342689a JH	144	{ &vop_setattr_desc, ufs_setattr }, /* setattr */
	145	{ &vop_read_desc, ufsfifo_read }, /* read */
	146	{ &vop_write_desc, ufsfifo_write }, /* write */
	147	{ &vop_ioctl_desc, fifo_ioctl }, /* ioctl */
	148	{ &vop_select_desc, fifo_select }, /* select */
56253a3b	149	{ &vop_mmap_desc, fifo_mmap }, /* mmap */
9342689a	150	{ &vop_fsync_desc, fifo_fsync }, /* fsync */
56253a3b	151	{ &vop_seek_desc, fifo_seek }, /* seek */
9342689a	152	{ &vop_remove_desc, fifo_remove }, /* remove */
56253a3b	153	{ &vop_link_desc, fifo_link }, /* link */
9342689a JH	154	{ &vop_rename_desc, fifo_rename }, /* rename */
	155	{ &vop_mkdir_desc, fifo_mkdir }, /* mkdir */
	156	{ &vop_rmdir_desc, fifo_rmdir }, /* rmdir */
	157	{ &vop_symlink_desc, fifo_symlink }, /* symlink */
	158	{ &vop_readdir_desc, fifo_readdir }, /* readdir */
	159	{ &vop_readlink_desc, fifo_readlink }, /* readlink */
	160	{ &vop_abortop_desc, fifo_abortop }, /* abortop */
28f690a6	161	{ &vop_inactive_desc, ufs_inactive }, /* inactive */
9342689a	162	{ &vop_reclaim_desc, ufs_reclaim }, /* reclaim */
56253a3b	163	{ &vop_lock_desc, ufs_lock }, /* lock */
9342689a	164	{ &vop_unlock_desc, ufs_unlock }, /* unlock */
56253a3b	165	{ &vop_bmap_desc, fifo_bmap }, /* bmap */
9342689a	166	{ &vop_strategy_desc, fifo_strategy }, /* strategy */
56253a3b	167	{ &vop_print_desc, ufs_print }, /* print */
9342689a JH	168	{ &vop_islocked_desc, ufs_islocked }, /* islocked */
	169	{ &vop_advlock_desc, fifo_advlock }, /* advlock */
	170	{ &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */
9342689a	171	{ &vop_valloc_desc, fifo_valloc }, /* valloc */
56253a3b	172	{ &vop_vfree_desc, lfs_vfree }, /* vfree */
9342689a JH	173	{ &vop_truncate_desc, fifo_truncate }, /* truncate */
	174	{ &vop_update_desc, lfs_update }, /* update */
	175	{ &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
	176	{ (struct vnodeop_desc)NULL, (int()())NULL }
a2d9885d	177	};
9342689a JH	178	struct vnodeopv_desc lfs_fifoop_opv_desc =
9342689a JH	179	{ &lfs_fifoop_p, lfs_fifoop_entries };
a2d9885d KM	180	#endif /* FIFO */
a2d9885d KM	181
b373e060 KM	182	/*
	183	* Vnode op for reading.
	184	*/
	185	/* ARGSUSED */
56253a3b	186	lfs_read(ap)
8d50beca KB	187	struct vop_read_args /* {
	188	struct vnode *a_vp;
	189	struct uio *a_uio;
	190	int a_ioflag;
	191	struct ucred *a_cred;
	192	} / ap;
b373e060	193	{
cb38190d KB	194	register struct vnode *vp = ap->a_vp;
cb38190d KB	195	register struct inode *ip = VTOI(vp);
406c9a0d	196	register struct uio *uio = ap->a_uio;
cb38190d	197	register struct lfs *fs;
28f690a6	198	struct buf *bp;
b373e060	199	daddr_t lbn, bn, rablock;
0308fc84	200	off_t diff;
28f690a6	201	int type, error = 0, size;
cb38190d	202	long n, on;
b373e060	203
b95c79ea	204	type = ip->i_mode & IFMT;
5b169cb7	205	#ifdef DIAGNOSTIC
406c9a0d	206	if (uio->uio_rw != UIO_READ)
cb38190d	207	panic("lfs_read mode");
b373e060	208	if (type != IFDIR && type != IFREG && type != IFLNK)
cb38190d KB	209	panic("lfs_read type");
	210	if (type == IFLNK && (int)ip->i_size < vp->v_mount->mnt_maxsymlinklen)
	211	panic("read short symlink");
5b169cb7	212	#endif
406c9a0d	213	if (uio->uio_resid == 0)
b373e060	214	return (0);
cb38190d KB	215	fs = ip->i_lfs;
	216	if (uio->uio_offset < 0 \|\|
	217	(u_quad_t)uio->uio_offset + uio->uio_resid > fs->lfs_maxfilesize)
	218	return (EFBIG);
b373e060	219	ip->i_flag \|= IACC;
b373e060	220	do {
406c9a0d JH	221	lbn = lblkno(fs, uio->uio_offset);
406c9a0d JH	222	on = blkoff(fs, uio->uio_offset);
cb38190d	223	n = min((unsigned)(fs->lfs_bsize - on), uio->uio_resid);
406c9a0d	224	diff = ip->i_size - uio->uio_offset;
b373e060	225	if (diff <= 0)
6873eea8	226	break;
b373e060 KM	227	if (diff < n)
b373e060 KM	228	n = diff;
cb38190d	229	size = blksize(fs);
17135473	230	lfs_check(vp, lbn);
28f690a6	231	error = cluster_read(vp, ip->i_size, lbn, size, NOCRED, &bp);
cb38190d	232	vp->v_lastr = lbn;
28f690a6	233	n = min(n, size - bp->b_resid);
6873eea8 KB	234	if (error)
6873eea8 KB	235	break;
28f690a6	236	error = uiomove(bp->b_un.b_addr + on, (int)n, uio);
b95c79ea KB	237	if (type == IFREG &&
b95c79ea KB	238	n + on == fs->lfs_bsize \|\| uio->uio_offset == ip->i_size)
28f690a6 MS	239	bp->b_flags \|= B_AGE;
28f690a6 MS	240	brelse(bp);
406c9a0d	241	} while (error == 0 && uio->uio_resid > 0 && n != 0);
b373e060 KM	242	return (error);
	243	}
	244
	245	/*
	246	* Vnode op for writing.
	247	*/
56253a3b	248	lfs_write(ap)
8d50beca KB	249	struct vop_write_args /* {
	250	struct vnode *a_vp;
	251	struct uio *a_uio;
	252	int a_ioflag;
	253	struct ucred *a_cred;
	254	} / ap;
b373e060	255	{
406c9a0d	256	register struct vnode *vp = ap->a_vp;
56253a3b KM	257	register struct uio *uio = ap->a_uio;
56253a3b KM	258	struct proc *p = uio->uio_procp;
406c9a0d	259	register struct inode *ip = VTOI(vp);
a418dc41	260	register struct lfs *fs;
56253a3b	261	register ioflag = ap->a_ioflag;
d942bf69	262	struct timeval tv;
28f690a6	263	struct buf *bp;
a418dc41	264	daddr_t lbn;
0308fc84	265	off_t osize;
a418dc41	266	int n, on, flags, newblock;
8986c97c	267	int size, resid, error = 0;
b373e060	268
5b169cb7	269	#ifdef DIAGNOSTIC
56253a3b	270	if (uio->uio_rw != UIO_WRITE)
a418dc41	271	panic("lfs_write mode");
5b169cb7	272	#endif
406c9a0d	273	switch (vp->v_type) {
b373e060	274	case VREG:
56253a3b KM	275	if (ioflag & IO_APPEND)
56253a3b KM	276	uio->uio_offset = ip->i_size;
b373e060 KM	277	/* fall through */
	278	case VLNK:
	279	break;
	280
	281	case VDIR:
a418dc41	282	/* XXX This may not be correct for LFS. */
56253a3b	283	if ((ioflag & IO_SYNC) == 0)
a418dc41	284	panic("lfs_write nonsync dir write");
b373e060 KM	285	break;
	286
	287	default:
a418dc41	288	panic("lfs_write type");
b373e060	289	}
56253a3b	290	if (uio->uio_offset < 0)
b373e060	291	return (EINVAL);
56253a3b	292	if (uio->uio_resid == 0)
b373e060 KM	293	return (0);
	294	/*
	295	* Maybe this should be above the vnode op call, but so long as
	296	* file servers have no limits, i don't think it matters
	297	*/
406c9a0d	298	if (vp->v_type == VREG && p &&
56253a3b	299	uio->uio_offset + uio->uio_resid >
c6f5111d MK	300	p->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
c6f5111d MK	301	psignal(p, SIGXFSZ);
b373e060 KM	302	return (EFBIG);
b373e060 KM	303	}
56253a3b	304	resid = uio->uio_resid;
b373e060	305	osize = ip->i_size;
d5075120	306	fs = ip->i_lfs; /* LFS */
cb38190d KB	307	if (uio->uio_offset < 0 \|\|
	308	(u_quad_t)uio->uio_offset + uio->uio_resid > fs->lfs_maxfilesize)
	309	return (EFBIG);
6873eea8	310
b373e060	311	do {
56253a3b KM	312	lbn = lblkno(fs, uio->uio_offset);
56253a3b KM	313	on = blkoff(fs, uio->uio_offset);
cb38190d	314	n = min((unsigned)(fs->lfs_bsize - on), uio->uio_resid);
17135473	315	lfs_check(vp, lbn);
28f690a6	316	if (error = lfs_balloc(vp, n, lbn, &bp))
b373e060	317	break;
56253a3b KM	318	if (uio->uio_offset + n > ip->i_size) {
56253a3b KM	319	ip->i_size = uio->uio_offset + n;
406c9a0d	320	vnode_pager_setsize(vp, (u_long)ip->i_size);
8986c97c	321	}
d5075120	322	size = blksize(fs);
406c9a0d	323	(void) vnode_pager_uncache(vp);
28f690a6 MS	324	n = min(n, size - bp->b_resid);
	325	error = uiomove(bp->b_un.b_addr + on, n, uio);
	326	error = VOP_BWRITE(bp);
6873eea8	327	/* XXX Why is this in the loop? */
28f690a6	328	if (ap->a_cred && ap->a_cred->cr_uid != 0)
b373e060	329	ip->i_mode &= ~(ISUID\|ISGID);
56253a3b	330	} while (error == 0 && uio->uio_resid > 0 && n != 0);
6873eea8	331
17135473 KB	332	if (error) {
	333	if (ioflag & IO_UNIT) {
	334	(void)VOP_TRUNCATE(vp, osize, ioflag & IO_SYNC,
	335	ap->a_cred, uio->uio_procp);
	336	uio->uio_offset -= resid - uio->uio_resid;
	337	uio->uio_resid = resid;
	338	}
6873eea8 KB	339	}
6873eea8 KB	340
28f690a6	341	/* TURN OFF SYNC FOR NOW
d942bf69 KM	342	if (!error && (ioflag & IO_SYNC)) {
d942bf69 KM	343	tv = time;
17135473 KB	344	if (!(error = VOP_UPDATE(vp, &tv, &tv, 1)))
	345	error = VOP_FSYNC(vp, ap->a_cred, MNT_WAIT,
	346	uio->uio_procp);
d942bf69	347	}
28f690a6	348	*/
b373e060 KM	349	return (error);
	350	}
	351
4f083fd7	352	/*
7188ac27	353	* Synch an open file.
4f083fd7	354	*/
7188ac27	355	/* ARGSUSED */
56253a3b	356	lfs_fsync(ap)
8d50beca KB	357	struct vop_fsync_args /* {
	358	struct vnode *a_vp;
	359	struct ucred *a_cred;
	360	int a_waitfor;
	361	struct proc *a_p;
	362	} / ap;
528f664c	363	{
d942bf69	364	struct timeval tv;
7188ac27	365
d942bf69	366	tv = time;
774279ac KB	367	return (VOP_UPDATE(ap->a_vp, &tv, &tv,
774279ac KB	368	ap->a_waitfor == MNT_WAIT ? LFS_SYNC : 0));
88a7a62a	369	}
a2d9885d	370
3ce71481 KB	371	/*
	372	* These macros are used to bracket UFS directory ops, so that we can
	373	* identify all the pages touched during directory ops which need to
	374	* be ordered and flushed atomically, so that they may be recovered.
	375	*/
	376	#define SET_DIROP(fs) { \
3ce71481	377	if ((fs)->lfs_writer) \
774279ac	378	tsleep(&(fs)->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); \
3ce71481 KB	379	++(fs)->lfs_dirops; \
3ce71481 KB	380	(fs)->lfs_doifile = 1; \
3ce71481 KB	381	}
	382
	383	#define SET_ENDOP(fs) { \
3ce71481 KB	384	--(fs)->lfs_dirops; \
	385	if (!(fs)->lfs_dirops) \
	386	wakeup(&(fs)->lfs_writer); \
3ce71481 KB	387	}
	388
	389	#define MARK_VNODE(dvp) (dvp)->v_flag \|= VDIROP
	390
	391	int
	392	lfs_symlink(ap)
8d50beca KB	393	struct vop_symlink_args /* {
	394	struct vnode *a_dvp;
	395	struct vnode **a_vpp;
	396	struct componentname *a_cnp;
	397	struct vattr *a_vap;
	398	char *a_target;
	399	} / ap;
3ce71481 KB	400	{
	401	int ret;
	402
	403	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	404	MARK_VNODE(ap->a_dvp);
	405	ret = ufs_symlink(ap);
	406	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	407	return (ret);
	408	}
	409
	410	int
	411	lfs_mknod(ap)
8d50beca KB	412	struct vop_mknod_args /* {
	413	struct vnode *a_dvp;
	414	struct vnode **a_vpp;
	415	struct componentname *a_cnp;
	416	struct vattr *a_vap;
	417	} / ap;
3ce71481 KB	418	{
	419	int ret;
	420
	421	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	422	MARK_VNODE(ap->a_dvp);
	423	ret = ufs_mknod(ap);
	424	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	425	return (ret);
	426	}
	427
	428	int
	429	lfs_create(ap)
8d50beca KB	430	struct vop_create_args /* {
	431	struct vnode *a_dvp;
	432	struct vnode **a_vpp;
	433	struct componentname *a_cnp;
	434	struct vattr *a_vap;
	435	} / ap;
3ce71481 KB	436	{
	437	int ret;
	438
	439	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	440	MARK_VNODE(ap->a_dvp);
	441	ret = ufs_create(ap);
	442	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	443	return (ret);
	444	}
	445
	446	int
	447	lfs_mkdir(ap)
8d50beca KB	448	struct vop_mkdir_args /* {
	449	struct vnode *a_dvp;
	450	struct vnode **a_vpp;
	451	struct componentname *a_cnp;
	452	struct vattr *a_vap;
	453	} / ap;
3ce71481 KB	454	{
	455	int ret;
	456
	457	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	458	MARK_VNODE(ap->a_dvp);
	459	ret = ufs_mkdir(ap);
	460	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	461	return (ret);
	462	}
	463
	464	int
	465	lfs_remove(ap)
8d50beca KB	466	struct vop_remove_args /* {
	467	struct vnode *a_dvp;
	468	struct vnode *a_vp;
	469	struct componentname *a_cnp;
	470	} / ap;
3ce71481 KB	471	{
	472	int ret;
	473
	474	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	475	MARK_VNODE(ap->a_dvp);
	476	MARK_VNODE(ap->a_vp);
	477	ret = ufs_remove(ap);
	478	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	479	return (ret);
	480	}
	481
	482	int
	483	lfs_rmdir(ap)
8d50beca KB	484	struct vop_rmdir_args /* {
	485	struct vnodeop_desc *a_desc;
	486	struct vnode *a_dvp;
	487	struct vnode *a_vp;
	488	struct componentname *a_cnp;
	489	} / ap;
3ce71481 KB	490	{
	491	int ret;
	492
	493	SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
	494	MARK_VNODE(ap->a_dvp);
	495	MARK_VNODE(ap->a_vp);
	496	ret = ufs_rmdir(ap);
	497	SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
	498	return (ret);
	499	}
	500
	501	int
	502	lfs_link(ap)
8d50beca KB	503	struct vop_link_args /* {
	504	struct vnode *a_vp;
	505	struct vnode *a_tdvp;
	506	struct componentname *a_cnp;
	507	} / ap;
3ce71481 KB	508	{
	509	int ret;
	510
	511	SET_DIROP(VTOI(ap->a_vp)->i_lfs);
	512	MARK_VNODE(ap->a_vp);
	513	ret = ufs_link(ap);
	514	SET_ENDOP(VTOI(ap->a_vp)->i_lfs);
	515	return (ret);
	516	}
	517
	518	int
	519	lfs_rename(ap)
8d50beca KB	520	struct vop_rename_args /* {
	521	struct vnode *a_fdvp;
	522	struct vnode *a_fvp;
	523	struct componentname *a_fcnp;
	524	struct vnode *a_tdvp;
	525	struct vnode *a_tvp;
	526	struct componentname *a_tcnp;
	527	} / ap;
3ce71481 KB	528	{
	529	int ret;
	530
	531	SET_DIROP(VTOI(ap->a_fdvp)->i_lfs);
	532	MARK_VNODE(ap->a_fdvp);
	533	MARK_VNODE(ap->a_tdvp);
	534	ret = ufs_rename(ap);
	535	SET_ENDOP(VTOI(ap->a_fdvp)->i_lfs);
	536	return (ret);
	537	}
17135473 KB	538	/* XXX hack to avoid calling ITIMES in getattr */
	539	int
	540	lfs_getattr(ap)
	541	struct vop_getattr_args /* {
	542	struct vnode *a_vp;
	543	struct vattr *a_vap;
	544	struct ucred *a_cred;
	545	struct proc *a_p;
	546	} / ap;
	547	{
	548	register struct vnode *vp = ap->a_vp;
	549	register struct inode *ip = VTOI(vp);
	550	register struct vattr *vap = ap->a_vap;
	551	/*
	552	* Copy from inode table
	553	*/
	554	vap->va_fsid = ip->i_dev;
	555	vap->va_fileid = ip->i_number;
	556	vap->va_mode = ip->i_mode & ~IFMT;
	557	vap->va_nlink = ip->i_nlink;
	558	vap->va_uid = ip->i_uid;
	559	vap->va_gid = ip->i_gid;
	560	vap->va_rdev = (dev_t)ip->i_rdev;
	561	vap->va_size = ip->i_din.di_size;
	562	vap->va_atime = ip->i_atime;
	563	vap->va_mtime = ip->i_mtime;
	564	vap->va_ctime = ip->i_ctime;
	565	vap->va_flags = ip->i_flags;
	566	vap->va_gen = ip->i_gen;
	567	/* this doesn't belong here */
	568	if (vp->v_type == VBLK)
	569	vap->va_blocksize = BLKDEV_IOSIZE;
	570	else if (vp->v_type == VCHR)
	571	vap->va_blocksize = MAXBSIZE;
	572	else
	573	vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
	574	vap->va_bytes = dbtob(ip->i_blocks);
	575	vap->va_type = vp->v_type;
	576	vap->va_filerev = ip->i_modrev;
	577	return (0);
	578	}
e5b88c97 KB	579	/*
	580	* Close called
	581	*
	582	* XXX -- we were using ufs_close, but since it updates the
	583	* times on the inode, we might need to bump the uinodes
	584	* count.
	585	*/
	586	/* ARGSUSED */
	587	int
	588	lfs_close(ap)
	589	struct vop_close_args /* {
	590	struct vnode *a_vp;
	591	int a_fflag;
	592	struct ucred *a_cred;
	593	struct proc *a_p;
	594	} / ap;
	595	{
	596	register struct vnode *vp = ap->a_vp;
	597	register struct inode *ip = VTOI(vp);
	598	int mod;
	599
	600	if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED)) {
	601	mod = ip->i_flag & IMOD;
	602	ITIMES(ip, &time, &time);
	603	if (!mod && ip->i_flag & IMOD)
	604	ip->i_lfs->lfs_uinodes++;
	605	}
	606	return (0);
	607	}
	608