Remove MFS from the kernel.

1 files changed, 0 insertions, 413 deletions

diff --git a/sys/ufs/mfs/mfs_vfsops.c b/sys/ufs/mfs/mfs_vfsops.c
deleted file mode 100644
index 7891cc5..0000000
--- a/sys/ufs/mfs/mfs_vfsops.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * Copyright (c) 1989, 1990, 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. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. 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.
- *
- *	@(#)mfs_vfsops.c	8.11 (Berkeley) 6/19/95
- * $FreeBSD$
- */
-
-
-#include "opt_mfs.h"
-#include "opt_ufs.h"
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/conf.h>
-#include <sys/kernel.h>
-#include <sys/proc.h>
-#include <sys/bio.h>
-#include <sys/buf.h>
-#include <sys/mount.h>
-#include <sys/signalvar.h>
-#include <sys/vnode.h>
-#include <sys/malloc.h>
-#include <sys/linker.h>
-
-#include <ufs/ufs/extattr.h>
-#include <ufs/ufs/quota.h>
-#include <ufs/ufs/inode.h>
-#include <ufs/ufs/ufsmount.h>
-#include <ufs/ufs/ufs_extern.h>
-
-#include <ufs/ffs/fs.h>
-#include <ufs/ffs/ffs_extern.h>
-
-#include <ufs/mfs/mfsnode.h>
-#include <ufs/mfs/mfs_extern.h>
-
-MALLOC_DEFINE(M_MFSNODE, "MFS node", "MFS vnode private part");
-
-
-static int mfs_minor;		/* used for building internal dev_t */
-
-extern vop_t **mfs_vnodeop_p;
-
-static int	mfs_mount __P((struct mount *mp,
-			char *path, caddr_t data, struct nameidata *ndp, 
-			struct proc *p));
-static int	mfs_start __P((struct mount *mp, int flags, struct proc *p));
-static int	mfs_statfs __P((struct mount *mp, struct statfs *sbp, 
-			struct proc *p));
-static int	mfs_init __P((struct vfsconf *));
-
-static struct cdevsw mfs_cdevsw = {
-	/* open */      noopen,
-	/* close */     noclose,
-	/* read */      physread,
-	/* write */     physwrite,
-	/* ioctl */     noioctl,
-	/* poll */      nopoll,
-	/* mmap */      nommap,
-	/* strategy */  nostrategy,
-	/* name */      "MFS",
-	/* maj */       253,
-	/* dump */      nodump,
-	/* psize */     nopsize,
-	/* flags */     D_DISK,
-};
-
-/*
- * mfs vfs operations.
- */
-static struct vfsops mfs_vfsops = {
-	mfs_mount,
-	mfs_start,
-	ffs_unmount,
-	ufs_root,
-	ufs_quotactl,
-	mfs_statfs,
-	ffs_sync,
-	ffs_vget,
-	ffs_fhtovp,
-	vfs_stdcheckexp,
-	ffs_vptofh,
-	mfs_init,
-	vfs_stduninit,
-#ifdef UFS_EXTATTR
-	ufs_extattrctl,
-#else
-	vfs_stdextattrctl,
-#endif
-};
-
-VFS_SET(mfs_vfsops, mfs, 0);
-
-
-/*
- * mfs_mount
- *
- * Called when mounting local physical media
- *
- * PARAMETERS:
- *		mountroot
- *			mp	mount point structure
- *			path	NULL (flag for root mount!!!)
- *			data	<unused>
- *			ndp	<unused>
- *			p	process (user credentials check [statfs])
- *
- *		mount
- *			mp	mount point structure
- *			path	path to mount point
- *			data	pointer to argument struct in user space
- *			ndp	mount point namei() return (used for
- *				credentials on reload), reused to look
- *				up block device.
- *			p	process (user credentials check)
- *
- * RETURNS:	0	Success
- *		!0	error number (errno.h)
- *
- * LOCK STATE:
- *
- *		ENTRY
- *			mount point is locked
- *		EXIT
- *			mount point is locked
- *
- * NOTES:
- *		A NULL path can be used for a flag since the mount
- *		system call will fail with EFAULT in copyinstr in
- *		namei() if it is a genuine NULL from the user.
- */
-/* ARGSUSED */
-static int
-mfs_mount(mp, path, data, ndp, p)
-	register struct mount *mp;
-	char *path;
-	caddr_t data;
-	struct nameidata *ndp;
-	struct proc *p;
-{
-	struct vnode *devvp;
-	struct mfs_args args;
-	struct ufsmount *ump;
-	struct fs *fs;
-	struct mfsnode *mfsp;
-	size_t size;
-	int flags, err;
-	dev_t dev;
-
-	/*
-	 * Use NULL path to flag a root mount
-	 */
-	if( path == NULL) {
-		/*
-		 ***
-		 * Mounting root file system
-		 ***
-		 */
-
-		/* you loose */
-		panic("mfs_mount: mount MFS as root: not configured!");
-	}
-
-	/*
-	 ***
-	 * Mounting non-root file system or updating a file system
-	 ***
-	 */
-
-	/* copy in user arguments*/
-	if ((err = copyin(data, (caddr_t)&args, sizeof (struct mfs_args))) != 0)
-		goto error_1;
-
-	/*
-	 * If updating, check whether changing from read-only to
-	 * read/write; if there is no device name, that's all we do.
-	 */
-	if (mp->mnt_flag & MNT_UPDATE) {
-		/*
-		 ********************
-		 * UPDATE
-		 ********************
-		 */
-		ump = VFSTOUFS(mp);
-		fs = ump->um_fs;
-		if (fs->fs_ronly == 0 && (mp->mnt_flag & MNT_RDONLY)) {
-			flags = WRITECLOSE;
-			if (mp->mnt_flag & MNT_FORCE)
-				flags |= FORCECLOSE;
-			err = ffs_flushfiles(mp, flags, p);
-			if (err)
-				goto error_1;
-		}
-		if (fs->fs_ronly && (mp->mnt_kern_flag & MNTK_WANTRDWR))
-			fs->fs_ronly = 0;
-		/* if not updating name...*/
-		if (args.fspec == 0) {
-			/*
-			 * Process export requests.  Jumping to "success"
-			 * will return the vfs_export() error code. 
-			 */
-			err = vfs_export(mp, &args.export);
-			goto success;
-		}
-
-		/* XXX MFS does not support name updating*/
-		goto success;
-	}
-	/*
-	 * Do the MALLOC before the getnewvnode since doing so afterward
-	 * might cause a bogus v_data pointer to get dereferenced
-	 * elsewhere if MALLOC should block.
-	 */
-	MALLOC(mfsp, struct mfsnode *, sizeof *mfsp, M_MFSNODE, M_WAITOK);
-
-	err = getnewvnode(VT_MFS, (struct mount *)0, mfs_vnodeop_p, &devvp);
-	if (err) {
-		FREE(mfsp, M_MFSNODE);
-		goto error_1;
-	}
-	devvp->v_type = VCHR;
-	dev = makedev(mfs_cdevsw.d_maj, mfs_minor);
-	dev->si_devsw = &mfs_cdevsw;
-	/* It is not clear that these will get initialized otherwise */
-	dev->si_bsize_phys = DEV_BSIZE;
-	dev->si_iosize_max = DFLTPHYS;
-	devvp = addaliasu(devvp, makeudev(253, mfs_minor++));
-	devvp->v_data = mfsp;
-	mfsp->mfs_baseoff = args.base;
-	mfsp->mfs_size = args.size;
-	mfsp->mfs_vnode = devvp;
-	mfsp->mfs_pid = p->p_pid;
-	mfsp->mfs_active = 1;
-	bufq_init(&mfsp->buf_queue);
-
-	/*
-	 * Since this is a new mount, we want the names for
-	 * the device and the mount point copied in.  If an
-	 * error occurs,  the mountpoint is discarded by the
-	 * upper level code.
-	 */
-	/* Save "last mounted on" info for mount point (NULL pad)*/
-	copyinstr(	path,				/* mount point*/
-			mp->mnt_stat.f_mntonname,	/* save area*/
-			MNAMELEN - 1,			/* max size*/
-			&size);				/* real size*/
-	bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
-
-	/* Save "mounted from" info for mount point (NULL pad)*/
-	copyinstr(	args.fspec,			/* device name*/
-			mp->mnt_stat.f_mntfromname,	/* save area*/
-			MNAMELEN - 1,			/* max size*/
-			&size);				/* real size*/
-	bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
-
-	if ((err = ffs_mountfs(devvp, mp, p, M_MFSNODE)) != 0) { 
-		mfsp->mfs_active = 0;
-		goto error_2;
-	}
-
-	/*
-	 * Initialize FS stat information in mount struct; uses both
-	 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname
-	 *
-	 * This code is common to root and non-root mounts
-	 */
-	(void) VFS_STATFS(mp, &mp->mnt_stat, p);
-
-	goto success;
-
-error_2:	/* error with devvp held*/
-
-	/* release devvp before failing*/
-	vrele(devvp);
-
-error_1:	/* no state to back out*/
-
-success:
-	return( err);
-}
-
-
-static int	mfs_pri = PWAIT | PCATCH;		/* XXX prob. temp */
-
-/*
- * Used to grab the process and keep it in the kernel to service
- * memory filesystem I/O requests.
- *
- * Loop servicing I/O requests.
- * Copy the requested data into or out of the memory filesystem
- * address space.
- */
-/* ARGSUSED */
-static int
-mfs_start(mp, flags, p)
-	struct mount *mp;
-	int flags;
-	struct proc *p;
-{
-	register struct vnode *vp = VFSTOUFS(mp)->um_devvp;
-	register struct mfsnode *mfsp = VTOMFS(vp);
-	register struct buf *bp;
-	register int gotsig = 0, sig;
-
-	/*
-	 * We must prevent the system from trying to swap
-	 * out or kill ( when swap space is low, see vm/pageout.c ) the
-	 * process.  A deadlock can occur if the process is swapped out,
-	 * and the system can loop trying to kill the unkillable ( while
-	 * references exist ) MFS process when swap space is low.
-	 */
-	PHOLD(curproc);
-
-	while (mfsp->mfs_active) {
-		int s;
-
-		s = splbio();
-
-		while ((bp = bufq_first(&mfsp->buf_queue)) != NULL) {
-			bufq_remove(&mfsp->buf_queue, bp);
-			splx(s);
-			mfs_doio(bp, mfsp);
-			wakeup((caddr_t)bp);
-			s = splbio();
-		}
-
-		splx(s);
-
-		/*
-		 * If a non-ignored signal is received, try to unmount.
-		 * If that fails, clear the signal (it has been "processed"),
-		 * otherwise we will loop here, as tsleep will always return
-		 * EINTR/ERESTART.
-		 */
-		/*
-		 * Note that dounmount() may fail if work was queued after
-		 * we slept. We have to jump hoops here to make sure that we
-		 * process any buffers after the sleep, before we dounmount()
-		 */
-		if (gotsig) {
-			gotsig = 0;
-			if (dounmount(mp, 0, p) != 0) {
-				sig = CURSIG(p);
-				if (sig) {
-					PROC_LOCK(p);
-					SIGDELSET(p->p_siglist, sig);
-					PROC_UNLOCK(p);
-				}
-			}
-		}
-		else if (tsleep((caddr_t)vp, mfs_pri, "mfsidl", 0))
-			gotsig++;	/* try to unmount in next pass */
-	}
-	return (0);
-}
-
-/*
- * Get file system statistics.
- */
-static int
-mfs_statfs(mp, sbp, p)
-	struct mount *mp;
-	struct statfs *sbp;
-	struct proc *p;
-{
-	int error;
-
-	error = ffs_statfs(mp, sbp, p);
-	sbp->f_type = mp->mnt_vfc->vfc_typenum;
-	return (error);
-}
-
-/*
- * Memory based filesystem initialization.
- */
-static int
-mfs_init(vfsp)
-	struct vfsconf *vfsp;
-{
-
-	cdevsw_add(&mfs_cdevsw);
-	return (0);
-}
-