/*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
*
- * @(#)ffs_vfsops.c 7.2 (Berkeley) %G%
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley. The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * @(#)ffs_vfsops.c 7.13 (Berkeley) %G%
*/
+
#include "param.h"
#include "systm.h"
-#include "dir.h"
-#include "user.h"
-#include "inode.h"
-#include "proc.h"
-#include "fs.h"
-#include "buf.h"
+#include "time.h"
+#include "kernel.h"
+#include "namei.h"
+#include "vnode.h"
#include "mount.h"
+#include "buf.h"
#include "file.h"
-#include "conf.h"
+#include "disklabel.h"
+#include "ioctl.h"
+#include "errno.h"
+#include "malloc.h"
+#include "../ufs/fs.h"
+#include "../ufs/ufsmount.h"
+#include "../ufs/inode.h"
+#include "ioctl.h"
+#include "disklabel.h"
+#include "stat.h"
+
+/*
+ * ufs vfs operations.
+ */
+int ufs_mount();
+int ufs_unmount();
+int ufs_root();
+int ufs_statfs();
+int ufs_sync();
+int ufs_fhtovp();
+int ufs_vptofh();
+
+struct vfsops ufs_vfsops = {
+ ufs_mount,
+ ufs_unmount,
+ ufs_root,
+ ufs_statfs,
+ ufs_sync,
+ ufs_fhtovp,
+ ufs_vptofh
+};
+
+/*
+ * ufs mount table.
+ */
+struct ufsmount mounttab[NMOUNT];
-smount()
+/*
+ * Called by vfs_mountroot when ufs is going to be mounted as root
+ *
+ * XXX - Need to have a way of figuring the name of the root device
+ */
+#define ROOTNAME "root device"
+
+ufs_mountroot()
{
- register struct a {
- char *fspec;
- char *freg;
- int ronly;
- } *uap = (struct a *)u.u_ap;
- dev_t dev;
- register struct inode *ip;
+ register struct mount *mp;
+ extern struct vnode *rootvp;
+ struct ufsmount *ump;
register struct fs *fs;
- register struct nameidata *ndp = &u.u_nd;
- u_int len;
+ u_int size;
+ int error;
- u.u_error = getmdev(&dev, uap->fspec);
- if (u.u_error)
- return;
- ndp->ni_nameiop = LOOKUP | FOLLOW;
- ndp->ni_segflg = UIO_USERSPACE;
- ndp->ni_dirp = (caddr_t)uap->freg;
- ip = namei(ndp);
- if (ip == NULL)
- return;
- if (ip->i_count != 1) {
- iput(ip);
- u.u_error = EBUSY;
- return;
+ mp = (struct mount *)malloc((u_long)sizeof(struct mount),
+ M_MOUNT, M_WAITOK);
+ mp->m_op = &ufs_vfsops;
+ mp->m_flag = 0;
+ mp->m_exroot = 0;
+ error = mountfs(rootvp, mp);
+ if (error) {
+ free((caddr_t)mp, M_MOUNT);
+ return (error);
}
- if ((ip->i_mode&IFMT) != IFDIR) {
- iput(ip);
- u.u_error = ENOTDIR;
- return;
+ error = vfs_add((struct vnode *)0, mp, 0);
+ if (error) {
+ (void)ufs_unmount(mp, 0);
+ free((caddr_t)mp, M_MOUNT);
+ return (error);
}
- fs = mountfs(dev, uap->ronly, ip);
- if (fs == 0)
- return;
- (void) copyinstr(uap->freg, fs->fs_fsmnt, sizeof(fs->fs_fsmnt)-1, &len);
- bzero(fs->fs_fsmnt + len, sizeof (fs->fs_fsmnt) - len);
+ ump = VFSTOUFS(mp);
+ fs = ump->um_fs;
+ fs->fs_fsmnt[0] = '/';
+ bzero(fs->fs_fsmnt + 1, sizeof(fs->fs_fsmnt) - 1);
+ (void) copystr(ROOTNAME, ump->um_mntname, MNAMELEN - 1, &size);
+ bzero(ump->um_mntname + size, MNAMELEN - size);
+ vfs_unlock(mp);
+ inittodr(fs->fs_time);
+ return (0);
}
-/* this routine has races if running twice */
-struct fs *
-mountfs(dev, ronly, ip)
- dev_t dev;
- int ronly;
- struct inode *ip;
+/*
+ * VFS Operations.
+ *
+ * mount system call
+ */
+ufs_mount(mp, path, data, ndp)
+ struct mount *mp;
+ char *path;
+ caddr_t data;
+ struct nameidata *ndp;
{
- register struct mount *mp = 0;
- struct buf *tp = 0;
- register struct buf *bp = 0;
+ struct vnode *devvp;
+ struct ufs_args args;
+ struct ufsmount *ump;
register struct fs *fs;
- int blks;
- caddr_t space;
- int i, size;
- register error;
+ u_int size;
+ int error;
+
+ if (error = copyin(data, (caddr_t)&args, sizeof (struct ufs_args)))
+ return (error);
+ if ((error = getmdev(&devvp, args.fspec, ndp)) != 0)
+ return (error);
+ error = mountfs(devvp, mp);
+ if (error) {
+ vrele(devvp);
+ return (error);
+ }
+ ump = VFSTOUFS(mp);
+ fs = ump->um_fs;
+ (void) copyinstr(path, fs->fs_fsmnt, sizeof(fs->fs_fsmnt) - 1, &size);
+ bzero(fs->fs_fsmnt + size, sizeof(fs->fs_fsmnt) - size);
+ (void) copyinstr(args.fspec, ump->um_mntname, MNAMELEN - 1, &size);
+ bzero(ump->um_mntname + size, MNAMELEN - size);
+ return (0);
+}
+
+/*
+ * Common code for mount and mountroot
+ */
+mountfs(devvp, mp)
+ struct vnode *devvp;
+ struct mount *mp;
+{
+ register struct ufsmount *ump;
+ struct ufsmount *fmp = NULL;
+ struct buf *bp = NULL;
+ register struct fs *fs;
+ dev_t dev = devvp->v_rdev;
+ struct partinfo dpart;
+ int havepart = 0, blks;
+ caddr_t base, space;
+ int havepart = 0, blks;
+ int error, i, size;
int needclose = 0;
+ int ronly = (mp->m_flag & M_RDONLY) != 0;
- error =
- (*bdevsw[major(dev)].d_open)(dev, ronly ? FREAD : FREAD|FWRITE);
- if (error)
- goto out;
+ for (ump = &mounttab[0]; ump < &mounttab[NMOUNT]; ump++) {
+ if (ump->um_fs == NULL) {
+ if (fmp == NULL)
+ fmp = ump;
+ } else if (dev == ump->um_dev) {
+ return (EBUSY); /* needs translation */
+ }
+ }
+ (*bdevsw[major(dev)].d_open)(dev, ronly ? FREAD : FREAD|FWRITE,
+ S_IFBLK);
+ if (error) {
+ ump->um_fs = NULL;
+ return (error);
+ }
needclose = 1;
- tp = bread(dev, SBLOCK, SBSIZE);
- if (tp->b_flags & B_ERROR)
+ if (VOP_IOCTL(devvp, DIOCGPART, (caddr_t)&dpart, FREAD,
+ (struct ucred *)0) != 0)
+ size = DEV_BSIZE;
+ else {
+ havepart = 1;
+ size = dpart.disklab->d_secsize;
+ }
+ if (error = bread(devvp, SBLOCK, SBSIZE, &bp)) {
+ ump->um_fs = NULL;
goto out;
- for (mp = &mount[0]; mp < &mount[NMOUNT]; mp++)
- if (mp->m_bufp != 0 && dev == mp->m_dev) {
- mp = 0;
- error = EBUSY;
- needclose = 0;
- goto out;
- }
- for (mp = &mount[0]; mp < &mount[NMOUNT]; mp++)
- if (mp->m_bufp == 0)
- goto found;
- mp = 0;
- error = EMFILE; /* needs translation */
- goto out;
-found:
- mp->m_bufp = tp; /* just to reserve this slot */
- mp->m_dev = NODEV;
- fs = tp->b_un.b_fs;
- if (fs->fs_magic != FS_MAGIC || fs->fs_bsize > MAXBSIZE
- || fs->fs_bsize < sizeof(struct fs)) {
- error = EINVAL; /* also needs translation */
+ }
+ fs = bp->b_un.b_fs;
+ ump->um_fs = NULL;
+ error = EINVAL; /* XXX also needs translation */
goto out;
}
- bp = geteblk((int)fs->fs_sbsize);
- mp->m_bufp = bp;
- bcopy((caddr_t)tp->b_un.b_addr, (caddr_t)bp->b_un.b_addr,
+ ump->um_fs = (struct fs *)malloc((u_long)fs->fs_sbsize, M_SUPERBLK,
+ M_WAITOK);
+ bcopy((caddr_t)bp->b_un.b_addr, (caddr_t)ump->um_fs,
(u_int)fs->fs_sbsize);
- brelse(tp);
- tp = 0;
- fs = bp->b_un.b_fs;
- fs->fs_ronly = (ronly != 0);
+ brelse(bp);
+ bp = NULL;
+ fs = ump->um_fs;
+ fs->fs_ronly = ronly;
if (ronly == 0)
fs->fs_fmod = 1;
- blks = howmany(fs->fs_cssize, fs->fs_fsize);
- space = wmemall(vmemall, (int)fs->fs_cssize);
- if (space == 0) {
- error = ENOMEM;
- goto out;
+ if (havepart) {
+ dpart.part->p_fstype = FS_BSDFFS;
+ dpart.part->p_fsize = fs->fs_fsize;
+ dpart.part->p_frag = fs->fs_frag;
+ dpart.part->p_cpg = fs->fs_cpg;
+ }
+#ifdef SECSIZE
+ /*
+ * If we have a disk label, force per-partition
+ * filesystem information to be correct
+ * and set correct current fsbtodb shift.
+ */
+#endif SECSIZE
+ if (havepart) {
+ dpart.part->p_fstype = FS_BSDFFS;
+ dpart.part->p_fsize = fs->fs_fsize;
+ dpart.part->p_frag = fs->fs_frag;
+#ifdef SECSIZE
+#ifdef tahoe
+ /*
+ * Save the original fsbtodb shift to restore on updates.
+ * (Console doesn't understand fsbtodb changes.)
+ */
+ fs->fs_sparecon[0] = fs->fs_fsbtodb;
+#endif
+ i = fs->fs_fsize / size;
+ for (fs->fs_fsbtodb = 0; i > 1; i >>= 1)
+ fs->fs_fsbtodb++;
+#endif SECSIZE
+ fs->fs_dbsize = size;
}
+ blks = howmany(fs->fs_cssize, fs->fs_fsize);
+ base = space = (caddr_t)malloc((u_long)fs->fs_cssize, M_SUPERBLK,
+ M_WAITOK);
for (i = 0; i < blks; i += fs->fs_frag) {
size = fs->fs_bsize;
if (i + fs->fs_frag > blks)
size = (blks - i) * fs->fs_fsize;
- tp = bread(dev, fsbtodb(fs, fs->fs_csaddr + i), size);
- if (tp->b_flags&B_ERROR) {
- wmemfree(space, (int)fs->fs_cssize);
+#ifdef SECSIZE
+ tp = bread(dev, fsbtodb(fs, fs->fs_csaddr + i), size,
+ fs->fs_dbsize);
+#else SECSIZE
+ error = bread(devvp, fsbtodb(fs, fs->fs_csaddr + i), size, &bp);
+ if (error) {
+ free((caddr_t)base, M_SUPERBLK);
goto out;
}
- bcopy((caddr_t)tp->b_un.b_addr, space, (u_int)size);
+ bcopy((caddr_t)bp->b_un.b_addr, space, (u_int)size);
fs->fs_csp[fragstoblks(fs, i)] = (struct csum *)space;
space += size;
- brelse(tp);
- tp = 0;
- }
- mp->m_inodp = ip;
- mp->m_dev = dev;
- if (ip) {
- ip->i_flag |= IMOUNT;
- cacheinval(ip);
- iunlock(ip);
+ brelse(bp);
+ bp = NULL;
}
+ mp->m_data = (qaddr_t)ump;
+ mp->m_bsize = fs->fs_bsize;
+ mp->m_fsize = fs->fs_fsize;
+ mp->m_fsid.val[0] = (long)dev;
+ mp->m_fsid.val[1] = MOUNT_UFS;
+ ump->um_mountp = mp;
+ ump->um_dev = dev;
+ ump->um_devvp = devvp;
+ ump->um_qinod = NULL;
+
/* Sanity checks for old file systems. XXX */
fs->fs_npsect = MAX(fs->fs_npsect, fs->fs_nsect); /* XXX */
fs->fs_interleave = MAX(fs->fs_interleave, 1); /* XXX */
- return (fs);
+ if (fs->fs_postblformat == FS_42POSTBLFMT) /* XXX */
+ fs->fs_nrpos = 8; /* XXX */
+
+ return (0);
out:
- if (error == 0)
- error = EIO;
- if (ip)
- iput(ip);
- if (mp)
- mp->m_bufp = 0;
+ if (needclose)
+ (void) VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE,
+ (struct ucred *)0);
+ if (ump->um_fs) {
+ free((caddr_t)ump->um_fs, M_SUPERBLK);
+ ump->um_fs = NULL;
+ }
if (bp)
brelse(bp);
- if (tp)
- brelse(tp);
- if (needclose) {
- (*bdevsw[major(dev)].d_close)(dev, ronly? FREAD : FREAD|FWRITE);
- binval(dev);
- }
- u.u_error = error;
- return (0);
+ return (error);
}
-umount()
-{
- struct a {
- char *fspec;
- } *uap = (struct a *)u.u_ap;
- u.u_error = unmount1(uap->fspec, 0);
-}
-
-unmount1(fname, forcibly)
- caddr_t fname;
- int forcibly;
+/*
+ * unmount system call
+ */
+ufs_unmount(mp, flags)
+ struct mount *mp;
+ int flags;
{
- dev_t dev;
- register struct mount *mp;
- int stillopen, flag, error;
- register struct inode *ip;
+ register struct ufsmount *ump;
register struct fs *fs;
+ dev_t dev;
+ int error, ronly;
- error = getmdev(&dev, fname);
- if (error)
- return (error);
- for (mp = &mount[0]; mp < &mount[NMOUNT]; mp++)
- if (mp->m_bufp != NULL && dev == mp->m_dev)
- goto found;
- return (EINVAL);
-found:
- xumount(dev); /* remove unused sticky files from text table */
- nchinval(dev); /* flush the name cache */
- update();
+ if (flags & MNT_FORCE)
+ return (EINVAL);
+ ump = VFSTOUFS(mp);
+ dev = ump->um_dev;
#ifdef QUOTA
- if ((stillopen = iflush(dev, mp->m_qinod)) < 0 && !forcibly)
+ if ((error = iflush(dev, mp->m_qinod)) && !forcibly)
#else
- if ((stillopen = iflush(dev)) < 0 && !forcibly)
+ if ((error = iflush(dev)) && !forcibly)
#endif
- return (EBUSY);
- if (stillopen < 0)
- return (EBUSY); /* XXX */
+ return (error);
#ifdef QUOTA
- closedq(mp);
+ (void)closedq(ump);
/*
* Here we have to iflush again to get rid of the quota inode.
- * A drag, but it would be ugly to cheat, & this doesn't happen often
+ * A drag, but it would be ugly to cheat, & this doesn't happen often.
*/
(void)iflush(dev, (struct inode *)NULL);
#endif
- ip = mp->m_inodp;
- ip->i_flag &= ~IMOUNT;
+ fs = ump->um_fs;
+ ronly = !fs->fs_ronly;
+ free((caddr_t)fs->fs_csp[0], M_SUPERBLK);
+ error = closei(dev, IFBLK, fs->fs_ronly? FREAD : FREAD|FWRITE);
irele(ip);
- fs = mp->m_bufp->b_un.b_fs;
- wmemfree((caddr_t)fs->fs_csp[0], (int)fs->fs_cssize);
- flag = !fs->fs_ronly;
- brelse(mp->m_bufp);
- mp->m_bufp = 0;
- mp->m_dev = 0;
- mpurge(mp - &mount[0]);
- if (!stillopen) {
- (*bdevsw[major(dev)].d_close)(dev, flag);
- binval(dev);
- }
+ return (error);
+}
+
+/*
+ * Return root of a filesystem
+ */
+ufs_root(mp, vpp)
+ struct mount *mp;
+ struct vnode **vpp;
+{
+ struct inode tip, *ip;
+ int error;
+
+ tip.i_dev = VFSTOUFS(mp)->um_dev;
+ tip.i_vnode.v_mount = mp;
+ error = iget(&tip, (ino_t)ROOTINO, &ip);
+ if (error)
+ return (error);
+ *vpp = ITOV(ip);
return (0);
}
-sbupdate(mp)
+/*
+ * Get file system statistics.
+ */
+ufs_statfs(mp, sbp)
struct mount *mp;
+ register struct statfs *sbp;
{
- register struct fs *fs = mp->m_bufp->b_un.b_fs;
+ register struct ufsmount *ump;
+ register struct fs *fs;
+
+ ump = VFSTOUFS(mp);
+ fs = ump->um_fs;
+ if (fs->fs_magic != FS_MAGIC)
+ panic("ufs_statfs");
+ sbp->f_type = MOUNT_UFS;
+ sbp->f_flags = mp->m_flag &~ (M_MLOCK|M_MWAIT);
+ sbp->f_fsize = fs->fs_fsize;
+ sbp->f_bsize = fs->fs_bsize;
+ sbp->f_blocks = fs->fs_dsize;
+ sbp->f_bfree = fs->fs_cstotal.cs_nbfree * fs->fs_frag +
+ fs->fs_cstotal.cs_nffree;
+ sbp->f_bavail = (fs->fs_dsize * (100 - fs->fs_minfree) / 100) -
+ (fs->fs_dsize - sbp->f_bfree);
+ if (sbp->f_bavail < 0)
+ sbp->f_bavail = 0;
+ sbp->f_files = fs->fs_ncg * fs->fs_ipg;
+ sbp->f_ffree = fs->fs_cstotal.cs_nifree;
+ sbp->f_fsid = mp->m_fsid;
+ bcopy((caddr_t)fs->fs_fsmnt, (caddr_t)&sbp->f_mntonname[0], MNAMELEN);
+ bcopy((caddr_t)ump->um_mntname, (caddr_t)&sbp->f_mntfromname[0],
+ MNAMELEN);
+ return (0);
+}
+
+int syncprt = 0;
+
+/*
+ * Go through the disk queues to initiate sandbagged IO;
+ * go through the inodes to write those that have been modified;
+ * initiate the writing of the super block if it has been modified.
+ */
+ufs_sync(mp, waitfor)
+ struct mount *mp;
+ int waitfor;
+{
+ register struct inode *ip;
+ register struct ufsmount *ump = VFSTOUFS(mp);
+ register struct fs *fs;
+ int error = 0;
+ static int updlock = 0;
+
+ if (syncprt)
+ bufstats();
+ if (updlock)
+ return (EBUSY);
+ fs = ump->um_fs;
+ if (fs == (struct fs *)1)
+ return (0);
+ updlock++;
+ /*
+ * Write back modified superblock.
+ * Consistency check that the superblock
+ * is still in the buffer cache.
+ */
+ if (fs->fs_fmod != 0) {
+ if (fs->fs_ronly != 0) { /* XXX */
+ printf("fs = %s\n", fs->fs_fsmnt);
+ panic("update: rofs mod");
+ }
+ fs->fs_fmod = 0;
+ fs->fs_time = time.tv_sec;
+ error = sbupdate(ump, waitfor);
+ }
+ /*
+ * Write back each (modified) inode.
+ */
+ for (ip = inode; ip < inodeNINODE; ip++) {
+ if (ip->i_devvp != ump->um_devvp ||
+ (ip->i_flag & ILOCKED) != 0 || ITOV(ip)->v_count == 0 ||
+ (ip->i_flag & (IMOD|IACC|IUPD|ICHG)) == 0)
+ continue;
+ ip->i_flag |= ILOCKED;
+ ITOV(ip)->v_count++;
+ error = iupdat(ip, &time, &time, waitfor == MNT_WAIT);
+ iput(ip);
+ }
+ updlock = 0;
+ /*
+ * Force stale buffer cache information to be flushed.
+ */
+ bflush(ump->um_devvp->v_rdev);
+ return (error);
+}
+
+/*
+ * Write a superblock and associated information back to disk.
+ */
+sbupdate(mp, waitfor)
+ struct ufsmount *mp;
+ int waitfor;
+{
+ register struct fs *fs = mp->um_fs;
register struct buf *bp;
int blks;
caddr_t space;
- int i, size;
+ int i, size, error = 0;
- bp = getblk(mp->m_dev, SBLOCK, (int)fs->fs_sbsize);
+#ifdef SECSIZE
+ bp = getblk(mp->m_dev, (daddr_t)fsbtodb(fs, SBOFF / fs->fs_fsize),
+ (int)fs->fs_sbsize, fs->fs_dbsize);
+#else SECSIZE
+ bp = getblk(mp->um_devvp, SBLOCK, (int)fs->fs_sbsize);
+#endif SECSIZE
bcopy((caddr_t)fs, bp->b_un.b_addr, (u_int)fs->fs_sbsize);
- bwrite(bp);
+ /* Restore compatibility to old file systems. XXX */
+ if (fs->fs_postblformat == FS_42POSTBLFMT) /* XXX */
+ bp->b_un.b_fs->fs_nrpos = -1; /* XXX */
+#ifdef SECSIZE
+#ifdef tahoe
+ /* restore standard fsbtodb shift */
+ bp->b_un.b_fs->fs_fsbtodb = fs->fs_sparecon[0];
+ bp->b_un.b_fs->fs_sparecon[0] = 0;
+#endif
+#endif SECSIZE
+ if (waitfor == MNT_WAIT)
+ error = bwrite(bp);
+ else
+ bawrite(bp);
blks = howmany(fs->fs_cssize, fs->fs_fsize);
space = (caddr_t)fs->fs_csp[0];
for (i = 0; i < blks; i += fs->fs_frag) {
size = fs->fs_bsize;
if (i + fs->fs_frag > blks)
size = (blks - i) * fs->fs_fsize;
- bp = getblk(mp->m_dev, fsbtodb(fs, fs->fs_csaddr + i), size);
+#ifdef SECSIZE
+ bp = getblk(mp->m_dev, fsbtodb(fs, fs->fs_csaddr + i), size,
+ fs->fs_dbsize);
+#else SECSIZE
+ bp = getblk(mp->um_devvp, fsbtodb(fs, fs->fs_csaddr + i), size);
+#endif SECSIZE
bcopy(space, bp->b_un.b_addr, (u_int)size);
space += size;
- bwrite(bp);
+ if (waitfor == MNT_WAIT)
+ error = bwrite(bp);
+ else
+ bawrite(bp);
+ }
+ return (error);
+}
+
+/*
+ * Print out statistics on the current allocation of the buffer pool.
+ * Can be enabled to print out on every ``sync'' by setting "syncprt"
+ * above.
+ */
+bufstats()
+{
+ int s, i, j, count;
+ register struct buf *bp, *dp;
+ int counts[MAXBSIZE/CLBYTES+1];
+ static char *bname[BQUEUES] = { "LOCKED", "LRU", "AGE", "EMPTY" };
+
+ for (bp = bfreelist, i = 0; bp < &bfreelist[BQUEUES]; bp++, i++) {
+ count = 0;
+ for (j = 0; j <= MAXBSIZE/CLBYTES; j++)
+ counts[j] = 0;
+ s = splbio();
+ for (dp = bp->av_forw; dp != bp; dp = dp->av_forw) {
+ counts[dp->b_bufsize/CLBYTES]++;
+ count++;
+ }
+ splx(s);
+ printf("%s: total-%d", bname[i], count);
+ for (j = 0; j <= MAXBSIZE/CLBYTES; j++)
+ if (counts[j] != 0)
+ printf(", %d-%d", j * CLBYTES, counts[j]);
+ printf("\n");
+ }
+}
+
+/*
+ * File handle to vnode
+ */
+ufs_fhtovp(mp, fhp, vpp)
+ struct mount *mp;
+ struct fid *fhp;
+ struct vnode **vpp;
+{
+ register struct ufid *ufhp;
+ struct inode tip, *ip;
+ int error;
+
+ ufhp = (struct ufid *)fhp;
+ tip.i_dev = VFSTOUFS(mp)->um_dev;
+ tip.i_vnode.v_mount = mp;
+ if (error = iget(&tip, ufhp->ufid_ino, &ip)) {
+ *vpp = NULL;
+ return (error);
}
+ if (ip->i_gen != ufhp->ufid_gen) {
+ iput(ip);
+ *vpp = NULL;
+ return (EINVAL);
+ }
+ *vpp = ITOV(ip);
+ return (0);
+}
+
+/*
+ * Vnode pointer to File handle, should never happen.
+ */
+/* ARGSUSED */
+ufs_vptofh(mp, fhp, vpp)
+ struct mount *mp;
+ struct fid *fhp;
+ struct vnode **vpp;
+{
+
+ return (EINVAL);
}
/*
- * Common code for mount and umount.
+ * Common code for mount and quota.
* Check that the user's argument is a reasonable
* thing on which to mount, and return the device number if so.
*/
-getmdev(pdev, fname)
+getmdev(devvpp, fname, ndp)
+ struct vnode **devvpp;
caddr_t fname;
- dev_t *pdev;
+ register struct nameidata *ndp;
{
- dev_t dev;
- register struct inode *ip;
- register struct nameidata *ndp = &u.u_nd;
+ register struct vnode *vp;
+ int error;
- if (!suser())
- return (u.u_error);
- ndp->ni_nameiop = LOOKUP | FOLLOW;
+ ndp->ni_nameiop = LOOKUP | LOCKLEAF | FOLLOW;
ndp->ni_segflg = UIO_USERSPACE;
ndp->ni_dirp = fname;
- ip = namei(ndp);
- if (ip == NULL) {
- if (u.u_error == ENOENT)
- return (ENODEV); /* needs translation */
- return (u.u_error);
+ if (error = namei(ndp)) {
+ if (error == ENOENT)
+ return (ENODEV); /* needs translation */
+ return (error);
}
- if ((ip->i_mode&IFMT) != IFBLK) {
- iput(ip);
+ vp = ndp->ni_vp;
+ if (vp->v_type != VBLK) {
+ vput(vp);
return (ENOTBLK);
}
- dev = (dev_t)ip->i_rdev;
- iput(ip);
- if (major(dev) >= nblkdev)
+ if (major(vp->v_rdev) >= nblkdev)
return (ENXIO);
- *pdev = dev;
+ iunlock(VTOI(vp));
+ *devvpp = vp;
return (0);
}