Subject: kern/3792: non-512 bytes/sector media support case 3
To: None <gnats-bugs@gnats.netbsd.org>
From: None <koji@math.human.nagoya-u.ac.jp>
List: netbsd-bugs
Date: 06/25/1997 17:06:53
>Number: 3792
>Category: kern
>Synopsis: non-512 bytes/sector media support case 3
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people (Kernel Bug People)
>State: open
>Class: change-request
>Submitter-Id: net
>Arrival-Date: Wed Jun 25 01:50:01 1997
>Last-Modified:
>Originator: Koji Imada - je4owb/2
>Organization:
Mathematics Group of Graduate School of Human
Infomatics, Nagoya University, Japan.
>Release: 970622
>Environment:
System: NetBSD bimota 1.2E NetBSD 1.2E (BIMOTA) #: Wed Jun 11 02:13:27 JST 1997 koji@ducati:/mnt2/NetBSD/work/src-ufs-mod/sys/arch/i386/compile/BIMOTA i386
>Description:
Modification required to support non-512 bytes/sector media
for file system and device drivers.
This is case 3 of 3 implementation. This changes block io unit
to natural size of device and adapts file systems(cd9660, ffs,
msdosfs) and device driver(cd, sd) to support non-512
bytes/sector media.
I will send mail to tech-kern about these 3 implementation.
Also, these obsoletes kern/3460 and kern/3458
>How-To-Repeat:
Current NetBSD can't handle non-512 bytes/sector media properly.
>Fix:
Apply following patches
Index: sys/arch/i386/i386/disksubr.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/arch/i386/i386/disksubr.c,v
retrieving revision 1.1.1.2
retrieving revision 1.2
diff -u -r1.1.1.2 -r1.2
--- disksubr.c 1997/04/01 07:21:40 1.1.1.2
+++ disksubr.c 1997/05/29 17:50:43 1.2
@@ -91,7 +91,7 @@
lp->d_partitions[i].p_offset = 0;
/* get a buffer and initialize it */
- bp = geteblk((int)lp->d_secsize);
+ bp = geteblk((int)BLKDEV_IOSIZE);
bp->b_dev = dev;
/* do dos partitions in the process of getting disklabel? */
@@ -100,6 +100,12 @@
if (osdep && (dp = osdep->dosparts) != NULL) {
/* read master boot record */
bp->b_blkno = DOSBBSECTOR;
+#if 0
+ if (lp->d_secsize > DEV_BSIZE)
+ bp->b_blkno *= lp->d_secsize / DEV_BSIZE;
+ else
+ bp->b_blkno /= DEV_BSIZE / lp->d_secsize;
+#endif
bp->b_bcount = lp->d_secsize;
bp->b_flags = B_BUSY | B_READ;
bp->b_cylin = DOSBBSECTOR / lp->d_secpercyl;
@@ -148,8 +154,14 @@
/* next, dig out disk label */
bp->b_blkno = dospartoff + LABELSECTOR;
+#if 0
+ if (lp->d_secsize > DEV_BSIZE)
+ bp->b_blkno *= lp->d_secsize / DEV_BSIZE;
+ else
+ bp->b_blkno /= DEV_BSIZE / lp->d_secsize;
+#endif
bp->b_cylin = cyl;
- bp->b_bcount = lp->d_secsize;
+ bp->b_bcount = BLKDEV_IOSIZE;
bp->b_flags = B_BUSY | B_READ;
(*strat)(bp);
@@ -159,7 +171,7 @@
goto done;
}
for (dlp = (struct disklabel *)bp->b_data;
- dlp <= (struct disklabel *)(bp->b_data + lp->d_secsize - sizeof(*dlp));
+ dlp <= (struct disklabel *)(bp->b_data + BLKDEV_IOSIZE - sizeof(*dlp));
dlp = (struct disklabel *)((char *)dlp + sizeof(long))) {
if (dlp->d_magic != DISKMAGIC || dlp->d_magic2 != DISKMAGIC) {
if (msg == NULL)
@@ -186,10 +198,12 @@
/* read a bad sector table */
bp->b_flags = B_BUSY | B_READ;
bp->b_blkno = lp->d_secperunit - lp->d_nsectors + i;
+#if 0
if (lp->d_secsize > DEV_BSIZE)
bp->b_blkno *= lp->d_secsize / DEV_BSIZE;
else
bp->b_blkno /= DEV_BSIZE / lp->d_secsize;
+#endif
bp->b_bcount = lp->d_secsize;
bp->b_cylin = lp->d_ncylinders - 1;
(*strat)(bp);
@@ -291,7 +305,7 @@
int error, dospartoff, cyl, i;
/* get a buffer and initialize it */
- bp = geteblk((int)lp->d_secsize);
+ bp = geteblk(BLKDEV_IOSIZE);
bp->b_dev = dev;
/* do dos partitions in the process of getting disklabel? */
@@ -300,6 +314,12 @@
if (osdep && (dp = osdep->dosparts) != NULL) {
/* read master boot record */
bp->b_blkno = DOSBBSECTOR;
+#if 0
+ if (lp->d_secsize > DEV_BSIZE)
+ bp->b_blkno *= lp->d_secsize / DEV_BSIZE;
+ else
+ bp->b_blkno /= DEV_BSIZE / lp->d_secsize;
+#endif
bp->b_bcount = lp->d_secsize;
bp->b_flags = B_BUSY | B_READ;
bp->b_cylin = DOSBBSECTOR / lp->d_secpercyl;
@@ -333,8 +353,14 @@
/* next, dig out disk label */
bp->b_blkno = dospartoff + LABELSECTOR;
+#if 0
+ if (lp->d_secsize > DEV_BSIZE)
+ bp->b_blkno *= lp->d_secsize / DEV_BSIZE;
+ else
+ bp->b_blkno /= DEV_BSIZE / lp->d_secsize;
+#endif
bp->b_cylin = cyl;
- bp->b_bcount = lp->d_secsize;
+ bp->b_bcount = BLKDEV_IOSIZE;
bp->b_flags = B_BUSY | B_READ;
(*strat)(bp);
@@ -342,7 +368,7 @@
if ((error = biowait(bp)) != 0)
goto done;
for (dlp = (struct disklabel *)bp->b_data;
- dlp <= (struct disklabel *)(bp->b_data + lp->d_secsize - sizeof(*dlp));
+ dlp <= (struct disklabel *)(bp->b_data + BLKDEV_IOSIZE - sizeof(*dlp));
dlp = (struct disklabel *)((char *)dlp + sizeof(long))) {
if (dlp->d_magic == DISKMAGIC && dlp->d_magic2 == DISKMAGIC &&
dkcksum(dlp) == 0) {
@@ -374,12 +400,21 @@
{
struct partition *p = lp->d_partitions + DISKPART(bp->b_dev);
int labelsector = lp->d_partitions[2].p_offset + LABELSECTOR;
- int sz;
+ int sz, blkno;
+
+#if 1
+ blkno = bp->b_blkno;
+#else
+ if (lp->d_secsize > DEV_BSIZE)
+ blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE);
+ else
+ blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize);
+#endif
sz = howmany(bp->b_bcount, lp->d_secsize);
- if (bp->b_blkno + sz > p->p_size) {
- sz = p->p_size - bp->b_blkno;
+ if (blkno + sz > p->p_size) {
+ sz = p->p_size - blkno;
if (sz == 0) {
/* If exactly at end of disk, return EOF. */
bp->b_resid = bp->b_bcount;
@@ -391,13 +426,13 @@
goto bad;
}
/* Otherwise, truncate request. */
- bp->b_bcount = sz << DEV_BSHIFT;
+ bp->b_bcount = sz * lp->d_secsize;
}
/* Overwriting disk label? */
- if (bp->b_blkno + p->p_offset <= labelsector &&
+ if (blkno + p->p_offset <= labelsector &&
#if LABELSECTOR != 0
- bp->b_blkno + p->p_offset + sz > labelsector &&
+ blkno + p->p_offset + sz > labelsector &&
#endif
(bp->b_flags & B_READ) == 0 && !wlabel) {
bp->b_error = EROFS;
@@ -405,8 +440,7 @@
}
/* calculate cylinder for disksort to order transfers with */
- bp->b_cylin = (bp->b_blkno + p->p_offset) /
- (lp->d_secsize / DEV_BSIZE) / lp->d_secpercyl;
+ bp->b_cylin = (blkno + p->p_offset) / lp->d_secpercyl;
return (1);
bad:
Index: sys/dev/vnd.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/dev/vnd.c,v
retrieving revision 1.1.1.5
retrieving revision 1.4
diff -u -r1.1.1.5 -r1.4
--- vnd.c 1997/06/23 16:24:04 1.1.1.5
+++ vnd.c 1997/06/24 03:11:11 1.4
@@ -94,6 +94,10 @@
#define b_cylin b_resid
#define vndunit(x) DISKUNIT(x)
+#define VNDPART(dev) DISKPART(dev)
+#define MAKEVNDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part)
+
+#define VNDLABELDEV(dev) (MAKEVNDDEV(major(dev), vndunit(dev), RAW_PART))
struct vndxfer {
struct buf *vx_bp; /* Pointer to parent buffer */
@@ -118,6 +122,9 @@
struct vnd_softc {
int sc_flags; /* flags */
size_t sc_size; /* size of vnd */
+ int sc_bsize; /* block size for special file */
+ int sc_blksize; /* number of bytes/dector */
+ int sc_bshift; /* shift constant */
struct vnode *sc_vp; /* vnode */
struct ucred *sc_cred; /* credentials */
int sc_maxactive; /* max # of active requests */
@@ -129,6 +136,8 @@
/* sc_flags */
#define VNF_ALIVE 0x01
#define VNF_INITED 0x02
+#define VNF_WLABEL 0x04
+#define VNF_LABELLING 0x08
#define VNF_WANTED 0x40
#define VNF_LOCKED 0x80
@@ -140,10 +149,11 @@
void vndclear __P((struct vnd_softc *));
void vndstart __P((struct vnd_softc *));
-int vndsetcred __P((struct vnd_softc *, struct ucred *));
+int vndsetcred __P((struct vnd_softc *, struct ucred *, struct proc *p));
void vndthrottle __P((struct vnd_softc *, struct vnode *));
void vndiodone __P((struct buf *));
void vndshutdown __P((void));
+void vndgetdisklabel __P((dev_t dev, struct vnd_softc *vnd));
static int vndlock __P((struct vnd_softc *));
static void vndunlock __P((struct vnd_softc *));
@@ -196,6 +206,15 @@
part = DISKPART(dev);
pmask = (1 << part);
+ /* Check that the partition exists. */
+ if (part != RAW_PART &&
+ ((sc->sc_flags & VNF_INITED) == 0 ||
+ part >= sc->sc_dkdev.dk_label->d_npartitions ||
+ sc->sc_dkdev.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) {
+ error = ENXIO;
+ goto bad;
+ }
+
/* Prevent our unit from being unconfigured while open. */
switch (mode) {
case S_IFCHR:
@@ -211,6 +230,10 @@
vndunlock(sc);
return (0);
+
+bad:
+ vndunlock(sc);
+ return error;
}
int
@@ -272,6 +295,7 @@
int sz, flags, error;
#ifdef DEBUG
+ printf("vndstrategy(%p): bsize %ld\n", bp, vnd->sc_vp->v_mount->mnt_stat.f_iosize);
if (vnddebug & VDB_FOLLOW)
printf("vndstrategy(%p): unit %d\n", bp, unit);
#endif
@@ -281,9 +305,28 @@
biodone(bp);
return;
}
+
+ if (VNDPART(bp->b_dev) != RAW_PART &&
+ bounds_check_with_label(bp, vnd->sc_dkdev.dk_label,
+ (vnd->sc_flags & (VNF_WLABEL|VNF_LABELLING)) != 0) <= 0) {
+ bp->b_resid = bp->b_bcount;
+ biodone(bp);
+ return;
+ }
+
+#if 1
bn = bp->b_blkno;
- sz = howmany(bp->b_bcount, DEV_BSIZE);
+#else
+ bn = bp->b_blkno / (vnd->sc_dkdev.dk_label->d_secsize / DEV_BSIZE);
+#endif
bp->b_resid = bp->b_bcount;
+ sz = howmany(bp->b_bcount, vnd->sc_blksize);
+
+ if (VNDPART(bp->b_dev) != RAW_PART) {
+ bn += vnd->sc_dkdev.dk_label->d_partitions[VNDPART(bp->b_dev)].p_offset;
+ }
+ bn *= vnd->sc_dkdev.dk_label->d_secsize / vnd->sc_blksize;
+
if (bn < 0 || bn + sz > vnd->sc_size) {
if (bn != vnd->sc_size) {
bp->b_error = EINVAL;
@@ -292,8 +335,13 @@
biodone(bp);
return;
}
- bn = dbtob(bn);
+
+ bn = bn << vnd->sc_bshift;
+#if 1
+ bsize = vnd->sc_bsize;
+#else
bsize = vnd->sc_vp->v_mount->mnt_stat.f_iosize;
+#endif
addr = bp->b_data;
flags = bp->b_flags | B_CALL;
@@ -512,6 +560,7 @@
{
int unit = vndunit(dev);
struct vnd_softc *sc;
+ int bshift;
#ifdef DEBUG
if (vnddebug & VDB_FOLLOW)
@@ -524,8 +573,9 @@
if ((sc->sc_flags & VNF_INITED) == 0)
return (ENXIO);
+ bshift = ffs(sc->sc_dkdev.dk_label->d_secsize)-1;
- return (physio(vndstrategy, NULL, dev, B_READ, minphys, uio));
+ return (physio2(vndstrategy, NULL, dev, B_READ, minphys, uio, bshift));
}
/* ARGSUSED */
@@ -537,6 +587,7 @@
{
int unit = vndunit(dev);
struct vnd_softc *sc;
+ int bshift;
#ifdef DEBUG
if (vnddebug & VDB_FOLLOW)
@@ -549,8 +600,9 @@
if ((sc->sc_flags & VNF_INITED) == 0)
return (ENXIO);
+ bshift = ffs(sc->sc_dkdev.dk_label->d_secsize)-1;
- return (physio(vndstrategy, NULL, dev, B_WRITE, minphys, uio));
+ return (physio2(vndstrategy, NULL, dev, B_WRITE, minphys, uio, bshift));
}
/* ARGSUSED */
@@ -588,6 +640,10 @@
if (vnd->sc_flags & VNF_INITED)
return (EBUSY);
+ if (vio->vnd_size == 0 || vio->vnd_size % DEV_BSIZE != 0 ||
+ vio->vnd_size > BLKDEV_IOSIZE)
+ vio->vnd_size = DEV_BSIZE;
+
if ((error = vndlock(vnd)) != 0)
return (error);
@@ -602,23 +658,55 @@
vndunlock(vnd);
return(error);
}
- error = VOP_GETATTR(nd.ni_vp, &vattr, p->p_ucred, p);
+ if (nd.ni_vp->v_type == VBLK || nd.ni_vp->v_type == VCHR) {
+ struct partinfo dpart;
+
+ dpart.disklab = NULL;
+ dpart.part = NULL;
+ error = VOP_IOCTL(nd.ni_vp, DIOCGPART, (caddr_t)&dpart,
+ FREAD, NOCRED, p);
+ if (error == 0) {
+ if (dpart.disklab != NULL && dpart.disklab->d_secsize != 0)
+ vattr.va_blocksize = dpart.disklab->d_secsize;
+ else
+ vattr.va_blocksize = DEV_BSIZE;
+ if (dpart.part == NULL)
+ vattr.va_size = 0;
+ else {
+ vattr.va_size = dpart.part->p_size *
+ dpart.disklab->d_secsize;
+ }
+ }
+ } else {
+ error = VOP_GETATTR(nd.ni_vp, &vattr, p->p_ucred, p);
+ }
if (error) {
VOP_UNLOCK(nd.ni_vp);
(void) vn_close(nd.ni_vp, FREAD|FWRITE, p->p_ucred, p);
vndunlock(vnd);
return(error);
}
+
VOP_UNLOCK(nd.ni_vp);
vnd->sc_vp = nd.ni_vp;
- vnd->sc_size = btodb(vattr.va_size); /* note truncation */
- if ((error = vndsetcred(vnd, p->p_ucred)) != 0) {
+ vnd->sc_blksize = vio->vnd_size;
+ vnd->sc_bshift = ffs(vnd->sc_blksize) - 1;
+ vnd->sc_size = vattr.va_size >> vnd->sc_bshift; /* note truncation */
+ if (nd.ni_vp->v_type != VBLK && nd.ni_vp->v_type != VCHR) {
+ vnd->sc_bsize = nd.ni_vp->v_mount->mnt_stat.f_iosize;
+ } else {
+ if (vattr.va_blocksize != 0)
+ vnd->sc_bsize = vattr.va_blocksize;
+ else
+ vnd->sc_bsize = DEV_BSIZE;
+ }
+ if ((error = vndsetcred(vnd, p->p_ucred, p)) != 0) {
(void) vn_close(nd.ni_vp, FREAD|FWRITE, p->p_ucred, p);
vndunlock(vnd);
return(error);
}
vndthrottle(vnd, vnd->sc_vp);
- vio->vnd_size = dbtob(vnd->sc_size);
+ vio->vnd_size = vnd->sc_size << vnd->sc_bshift;
vnd->sc_flags |= VNF_INITED;
#ifdef DEBUG
if (vnddebug & VDB_INIT)
@@ -632,6 +720,8 @@
vnd->sc_dkdev.dk_name = vnd->sc_xname;
disk_attach(&vnd->sc_dkdev);
+ vndgetdisklabel(dev, vnd);
+
vndunlock(vnd);
break;
@@ -673,6 +763,60 @@
/*
* XXX Should support disklabels.
*/
+ case DIOCGDINFO:
+ if ((vnd->sc_flags & VNF_INITED) == 0)
+ return (ENXIO);
+
+ *(struct disklabel *)data = *(vnd->sc_dkdev.dk_label);
+ return 0;
+
+ case DIOCGPART:
+ if ((vnd->sc_flags & VNF_INITED) == 0)
+ return (ENXIO);
+
+ ((struct partinfo *)data)->disklab = vnd->sc_dkdev.dk_label;
+ ((struct partinfo *)data)->part =
+ &vnd->sc_dkdev.dk_label->d_partitions[VNDPART(dev)];
+ return 0;
+
+
+ case DIOCWDINFO:
+ case DIOCSDINFO:
+ if ((vnd->sc_flags & VNF_INITED) == 0)
+ return (ENXIO);
+
+ if ((flag & FWRITE) == 0)
+ return EBADF;
+
+ if ((error = vndlock(vnd)) != 0)
+ return error;
+ vnd->sc_flags |= VNF_LABELLING;
+
+ error = setdisklabel(vnd->sc_dkdev.dk_label,
+ (struct disklabel *)data, /*vnd->sc_dkdev.dk_openmask : */0,
+ vnd->sc_dkdev.dk_cpulabel);
+ if (error == 0) {
+ if (cmd == DIOCWDINFO)
+ error = writedisklabel(VNDLABELDEV(dev),
+ vndstrategy, vnd->sc_dkdev.dk_label,
+ vnd->sc_dkdev.dk_cpulabel);
+ }
+
+ vnd->sc_flags &= ~VNF_LABELLING;
+ vndunlock(vnd);
+ return error;
+
+ case DIOCWLABEL:
+ if ((vnd->sc_flags & VNF_INITED) == 0)
+ return (ENXIO);
+
+ if ((flag & FWRITE) == 0)
+ return EBADF;
+ if (*(int *)data)
+ vnd->sc_flags |= VNF_WLABEL;
+ else
+ vnd->sc_flags &= ~VNF_WLABEL;
+ return 0;
default:
return(ENOTTY);
@@ -682,15 +826,69 @@
}
/*
+ * Load the label information on the named device
+ */
+void
+vndgetdisklabel(dev, vnd)
+ dev_t dev;
+ struct vnd_softc *vnd;
+{
+ struct disklabel *lp = vnd->sc_dkdev.dk_label;
+ char *errstring;
+
+ bzero(lp, sizeof(struct disklabel));
+ bzero(vnd->sc_dkdev.dk_cpulabel, sizeof(struct cpu_disklabel));
+
+ lp->d_secsize = vnd->sc_blksize;
+ lp->d_ntracks = 64;
+ lp->d_nsectors = 32;
+ lp->d_ncylinders = vnd->sc_size / (64 * 32);
+ lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
+ if (lp->d_secpercyl == 0) {
+ lp->d_secpercyl = 100;
+ /* as long as it's not 0 - readdisklabel divides by it (?) */
+ }
+
+ strncpy(lp->d_typename, "vnode disk", 16);
+ lp->d_type = DTYPE_VND;
+ strncpy(lp->d_packname, "fictitious", 16);
+ lp->d_secperunit = vnd->sc_size;
+ lp->d_rpm = 3600;
+ lp->d_interleave = 1;
+ lp->d_flags = 0;
+
+ lp->d_partitions[RAW_PART].p_offset = 0;
+ lp->d_partitions[RAW_PART].p_size =
+ lp->d_secperunit;
+ lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED;
+ lp->d_npartitions = RAW_PART + 1;
+
+ lp->d_magic = DISKMAGIC;
+ lp->d_magic2 = DISKMAGIC;
+ lp->d_checksum = dkcksum(lp);
+
+ /*
+ * Call the generic disklabel extraction routine
+ */
+ errstring = readdisklabel(dev,
+ vndstrategy, lp, vnd->sc_dkdev.dk_cpulabel);
+ if (errstring) {
+ printf("%s: %s\n", vnd->sc_xname, errstring);
+ return;
+ }
+}
+
+/*
* Duplicate the current processes' credentials. Since we are called only
* as the result of a SET ioctl and only root can do that, any future access
* to this "disk" is essentially as root. Note that credentials may change
* if some other uid can write directly to the mapped file (NFS).
*/
int
-vndsetcred(vnd, cred)
+vndsetcred(vnd, cred, p)
register struct vnd_softc *vnd;
struct ucred *cred;
+ struct proc *p;
{
struct uio auio;
struct iovec aiov;
@@ -709,6 +907,7 @@
auio.uio_rw = UIO_READ;
auio.uio_segflg = UIO_SYSSPACE;
auio.uio_resid = aiov.iov_len;
+ auio.uio_procp = p;
VOP_LOCK(vnd->sc_vp);
error = VOP_READ(vnd->sc_vp, &auio, 0, vnd->sc_cred);
VOP_UNLOCK(vnd->sc_vp);
Index: sys/isofs/cd9660/cd9660_bmap.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/isofs/cd9660/cd9660_bmap.c,v
retrieving revision 1.1.1.2
retrieving revision 1.2
diff -u -r1.1.1.2 -r1.2
--- cd9660_bmap.c 1997/04/01 07:13:06 1.1.1.2
+++ cd9660_bmap.c 1997/05/29 17:50:53 1.2
@@ -84,7 +84,11 @@
* Compute the requested block number
*/
bshift = ip->i_mnt->im_bshift;
+#if 1
+ *ap->a_bnp = (ip->iso_start + lblkno) << ip->i_mnt->im_sshift;
+#else
*ap->a_bnp = (ip->iso_start + lblkno) << (bshift - DEV_BSHIFT);
+#endif
/*
* Determine maximum number of readahead blocks following the
Index: sys/isofs/cd9660/cd9660_extern.h
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/isofs/cd9660/cd9660_extern.h,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- cd9660_extern.h 1997/04/01 07:13:14 1.1.1.1
+++ cd9660_extern.h 1997/05/29 17:50:55 1.2
@@ -61,7 +61,12 @@
int logical_block_size;
int im_bshift;
int im_bmask;
-
+
+#if 1
+ int system_block_size;
+ int im_sshift;
+#endif
+
int volume_space_size;
struct netexport im_export;
Index: sys/isofs/cd9660/cd9660_rrip.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/isofs/cd9660/cd9660_rrip.c,v
retrieving revision 1.1.1.2
retrieving revision 1.2
diff -u -r1.1.1.2 -r1.2
--- cd9660_rrip.c 1997/04/01 07:13:10 1.1.1.2
+++ cd9660_rrip.c 1997/05/29 17:50:56 1.2
@@ -574,7 +574,11 @@
if (ana->iso_ce_blk >= ana->imp->volume_space_size
|| ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size
|| bread(ana->imp->im_devvp,
+#if 1
+ ana->iso_ce_blk << ana->imp->im_sshift,
+#else
ana->iso_ce_blk << (ana->imp->im_bshift - DEV_BSHIFT),
+#endif
ana->imp->logical_block_size, NOCRED, &bp))
/* what to do now? */
break;
Index: sys/isofs/cd9660/cd9660_vfsops.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/isofs/cd9660/cd9660_vfsops.c,v
retrieving revision 1.1.1.3
retrieving revision 1.3
diff -u -r1.1.1.3 -r1.3
--- cd9660_vfsops.c 1997/06/23 16:26:16 1.1.1.3
+++ cd9660_vfsops.c 1997/06/24 03:11:32 1.3
@@ -233,6 +233,13 @@
struct iso_primary_descriptor *pri;
struct iso_directory_record *rootp;
int logical_block_size;
+#if 1
+ struct partinfo dpart;
+ int bsize, sshift;
+ struct ucred *cred;
+
+ cred = p ? p->p_ucred : NOCRED;
+#endif
if (!ronly)
return EROFS;
@@ -260,10 +267,23 @@
* whichever is greater. For now, we'll just use a constant.
*/
iso_bsize = ISO_DEFAULT_BLOCK_SIZE;
+#if 1
+ if (VOP_IOCTL(devvp, DIOCGPART, (caddr_t)&dpart, FREAD, cred, p) != 0)
+ bsize = DEV_BSIZE;
+ else
+ bsize = dpart.disklab->d_secsize;
+
+ sshift = ffs(iso_bsize) - ffs(bsize);
+#endif
for (iso_blknum = 16; iso_blknum < 100; iso_blknum++) {
+#if 1
+ if ((error = bread(devvp, iso_blknum << sshift,
+ iso_bsize, NOCRED, &bp)) != 0)
+#else
if ((error = bread(devvp, iso_blknum * btodb(iso_bsize),
iso_bsize, NOCRED, &bp)) != 0)
+#endif
goto out;
vdp = (struct iso_volume_descriptor *)bp->b_data;
@@ -312,6 +332,10 @@
while ((1 << isomp->im_bshift) < isomp->logical_block_size)
isomp->im_bshift++;
+#if 1
+ isomp->system_block_size = bsize;
+ isomp->im_sshift = sshift;
+#endif
bp->b_flags |= B_AGE;
brelse(bp);
bp = NULL;
@@ -331,7 +355,11 @@
if (!(argp->flags & ISOFSMNT_NORRIP)) {
if ((error = bread(isomp->im_devvp,
(isomp->root_extent + isonum_711(rootp->ext_attr_length)) <<
+#if 1
+ isomp->im_sshift,
+#else
(isomp->im_bshift - DEV_BSHIFT),
+#endif
isomp->logical_block_size, NOCRED,
&bp)) != 0)
goto out;
Index: sys/kern/kern_physio.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/kern/kern_physio.c,v
retrieving revision 1.1.1.3
retrieving revision 1.2
diff -u -r1.1.1.3 -r1.2
--- kern_physio.c 1997/05/23 21:58:02 1.1.1.3
+++ kern_physio.c 1997/05/29 17:50:47 1.2
@@ -78,6 +78,19 @@
void (*minphys) __P((struct buf *));
struct uio *uio;
{
+ return physio2(strategy, bp, dev, flags, minphys, uio, DEV_BSHIFT);
+}
+
+int
+physio2(strategy, bp, dev, flags, minphys, uio, bshift)
+ void (*strategy) __P((struct buf *));
+ struct buf *bp;
+ dev_t dev;
+ int flags;
+ void (*minphys) __P((struct buf *));
+ struct uio *uio;
+ int bshift;
+{
struct iovec *iovp;
struct proc *p = curproc;
int error, done, i, nobuf, s, todo;
@@ -143,7 +156,12 @@
bp->b_flags = B_BUSY | B_PHYS | B_RAW | flags;
/* [set up the buffer for a maximum-sized transfer] */
+#if 1
+ bp->b_blkno = uio->uio_offset >> bshift;
+#else
bp->b_blkno = btodb(uio->uio_offset);
+#endif
+
bp->b_bcount = iovp->iov_len;
bp->b_data = iovp->iov_base;
Index: sys/scsi/cd.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/scsi/cd.c,v
retrieving revision 1.1.1.3
retrieving revision 1.2
diff -u -r1.1.1.3 -r1.2
--- cd.c 1997/04/11 07:23:35 1.1.1.3
+++ cd.c 1997/05/29 17:50:50 1.2
@@ -549,13 +549,18 @@
* First, translate the block to absolute and put it in terms
* of the logical blocksize of the device.
*/
+#if 1
+ blkno = bp->b_blkno;
+#else
blkno =
bp->b_blkno / (cd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
+#endif
if (CDPART(bp->b_dev) != RAW_PART) {
p = &cd->sc_dk.dk_label->d_partitions[CDPART(bp->b_dev)];
blkno += p->p_offset;
}
- nblks = howmany(bp->b_bcount, cd->sc_dk.dk_label->d_secsize);
+ blkno *= cd->sc_dk.dk_label->d_secsize / cd->params.blksize;
+ nblks = howmany(bp->b_bcount, cd->params.blksize);
/*
* Fill out the scsi command. If the transfer will
@@ -647,8 +652,10 @@
struct uio *uio;
int ioflag;
{
+ struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)];
+ int bshift = ffs(cd->sc_dk.dk_label->d_secsize)-1;
- return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio));
+ return (physio2(cdstrategy, NULL, dev, B_READ, cdminphys, uio, bshift));
}
int
@@ -657,8 +664,10 @@
struct uio *uio;
int ioflag;
{
+ struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)];
+ int bshift = ffs(cd->sc_dk.dk_label->d_secsize)-1;
- return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio));
+ return (physio2(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio, bshift));
}
/*
@@ -942,6 +951,7 @@
struct cd_softc *cd;
{
struct disklabel *lp = cd->sc_dk.dk_label;
+ char *errstring;
bzero(lp, sizeof(struct disklabel));
bzero(cd->sc_dk.dk_cpulabel, sizeof(struct cpu_disklabel));
@@ -962,17 +972,46 @@
lp->d_partitions[0].p_offset = 0;
lp->d_partitions[0].p_size =
- lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
+ lp->d_secperunit;
lp->d_partitions[0].p_fstype = FS_ISO9660;
lp->d_partitions[RAW_PART].p_offset = 0;
lp->d_partitions[RAW_PART].p_size =
- lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
+ lp->d_secperunit;
lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660;
lp->d_npartitions = RAW_PART + 1;
lp->d_magic = DISKMAGIC;
lp->d_magic2 = DISKMAGIC;
lp->d_checksum = dkcksum(lp);
+
+ /*
+ * Call the generic disklabel extraction routine
+ */
+ errstring = readdisklabel(MAKECDDEV(0, cd->sc_dev.dv_unit, RAW_PART),
+ cdstrategy, lp, cd->sc_dk.dk_cpulabel);
+
+#if 0
+ if (errstring) {
+ printf("%s: %s\n", cd->sc_dev.dv_xname, errstring);
+ return;
+ }
+#else
+ if (errstring && strcmp(errstring, "no disk label") == 0) {
+ lp->d_partitions[0].p_offset = 0;
+ lp->d_partitions[0].p_size =
+ lp->d_secperunit;
+ lp->d_partitions[0].p_fstype = FS_ISO9660;
+ lp->d_partitions[RAW_PART].p_offset = 0;
+ lp->d_partitions[RAW_PART].p_size =
+ lp->d_secperunit;
+ lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660;
+ lp->d_npartitions = RAW_PART + 1;
+
+ lp->d_magic = DISKMAGIC;
+ lp->d_magic2 = DISKMAGIC;
+ lp->d_checksum = dkcksum(lp);
+ }
+#endif
}
/*
Index: sys/scsi/sd.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/scsi/sd.c,v
retrieving revision 1.1.1.4
retrieving revision 1.3
diff -u -r1.1.1.4 -r1.3
--- sd.c 1997/06/23 16:30:19 1.1.1.4
+++ sd.c 1997/06/24 03:11:50 1.3
@@ -577,13 +577,13 @@
* First, translate the block to absolute and put it in terms
* of the logical blocksize of the device.
*/
- blkno =
- bp->b_blkno / (sd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
+ blkno = bp->b_blkno;
if (SDPART(bp->b_dev) != RAW_PART) {
p = &sd->sc_dk.dk_label->d_partitions[SDPART(bp->b_dev)];
blkno += p->p_offset;
}
- nblks = howmany(bp->b_bcount, sd->sc_dk.dk_label->d_secsize);
+ blkno *= sd->sc_dk.dk_label->d_secsize / sd->params.blksize;
+ nblks = howmany(bp->b_bcount, sd->params.blksize);
/*
* Fill out the scsi command. If the transfer will
@@ -675,8 +675,10 @@
struct uio *uio;
int ioflag;
{
+ struct sd_softc *sd = sd_cd.cd_devs[SDUNIT(dev)];
+ int bshift = ffs(sd->sc_dk.dk_label->d_secsize)-1;
- return (physio(sdstrategy, NULL, dev, B_READ, sdminphys, uio));
+ return (physio2(sdstrategy, NULL, dev, B_READ, sdminphys, uio, bshift));
}
int
@@ -685,8 +687,10 @@
struct uio *uio;
int ioflag;
{
+ struct sd_softc *sd = sd_cd.cd_devs[SDUNIT(dev)];
+ int bshift = ffs(sd->sc_dk.dk_label->d_secsize)-1;
- return (physio(sdstrategy, NULL, dev, B_WRITE, sdminphys, uio));
+ return (physio2(sdstrategy, NULL, dev, B_WRITE, sdminphys, uio, bshift));
}
/*
@@ -810,7 +814,7 @@
lp->d_partitions[RAW_PART].p_offset = 0;
lp->d_partitions[RAW_PART].p_size =
- lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
+ lp->d_secperunit;
lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED;
lp->d_npartitions = RAW_PART + 1;
Index: sys/sys/buf.h
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/sys/buf.h,v
retrieving revision 1.1.1.2
retrieving revision 1.2
diff -u -r1.1.1.2 -r1.2
--- buf.h 1997/04/14 06:25:49 1.1.1.2
+++ buf.h 1997/05/29 17:50:51 1.2
@@ -187,6 +187,8 @@
void minphys __P((struct buf *bp));
int physio __P((void (*strategy)(struct buf *), struct buf *bp, dev_t dev,
int flags, void (*minphys)(struct buf *), struct uio *uio));
+int physio2 __P((void (*strategy)(struct buf *), struct buf *bp, dev_t dev,
+ int flags, void (*minphys)(struct buf *), struct uio *uio, int bshift));
void brelvp __P((struct buf *));
void reassignbuf __P((struct buf *, struct vnode *));
void bgetvp __P((struct vnode *, struct buf *));
Index: sys/ufs/ffs/ffs_vfsops.c
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/ufs/ffs/ffs_vfsops.c,v
retrieving revision 1.1.1.3
retrieving revision 1.4
diff -u -r1.1.1.3 -r1.4
--- ffs_vfsops.c 1997/06/23 16:31:06 1.1.1.3
+++ ffs_vfsops.c 1997/06/24 03:12:02 1.4
@@ -307,7 +307,9 @@
struct csum *space;
struct buf *bp;
struct fs *fs, *newfs;
+#if 1
struct partinfo dpart;
+#endif
int i, blks, size, error;
int32_t *lp;
@@ -322,10 +324,15 @@
/*
* Step 2: re-read superblock from disk.
*/
+#if 1
if (VOP_IOCTL(devvp, DIOCGPART, (caddr_t)&dpart, FREAD, NOCRED, p) != 0)
size = DEV_BSIZE;
else
size = dpart.disklab->d_secsize;
+#else
+ size = DEV_BSIZE;
+#endif
+
error = bread(devvp, (daddr_t)(SBOFF / size), SBSIZE, NOCRED, &bp);
if (error)
return (error);
@@ -343,6 +350,7 @@
*/
bcopy(&fs->fs_csp[0], &newfs->fs_csp[0], sizeof(fs->fs_csp));
newfs->fs_maxcluster = fs->fs_maxcluster;
+ newfs->fs_fsbtosb = fs->fs_fsbtosb;
bcopy(newfs, fs, (u_int)fs->fs_sbsize);
if (fs->fs_sbsize < SBSIZE)
bp->b_flags |= B_INVAL;
@@ -424,10 +432,12 @@
struct buf *bp;
register struct fs *fs;
dev_t dev;
+#if 1
struct partinfo dpart;
+#endif
caddr_t base, space;
int blks;
- int error, i, size, ronly;
+ int error, i, size, ssize, ronly;
int32_t *lp;
struct ucred *cred;
extern struct vnode *rootvp;
@@ -452,10 +462,14 @@
error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p);
if (error)
return (error);
+#if 1
if (VOP_IOCTL(devvp, DIOCGPART, (caddr_t)&dpart, FREAD, cred, p) != 0)
size = DEV_BSIZE;
else
size = dpart.disklab->d_secsize;
+#else
+ size = DEV_BSIZE;
+#endif
bp = NULL;
ump = NULL;
@@ -473,6 +487,21 @@
error = EROFS; /* XXX what should be returned? */
goto out;
}
+ /* XXX bread assumes b_blkno in DEV_BSIZE unit. Calculate fsbtosb */
+
+ ssize = fs->fs_fsize / fs->fs_nspf;
+ fs->fs_fsbtosb = fs->fs_fsbtodb;
+ if (ssize >= size) {
+ ssize = ssize / size;
+ for (i = 0; ssize > 1; ssize >>= 1)
+ i ++;
+ fs->fs_fsbtosb += i;
+ } else {
+ ssize = size / ssize;
+ for (i = 0; ssize > 1; ssize >>= 1)
+ i ++;
+ fs->fs_fsbtosb -= i;
+ }
ump = malloc(sizeof *ump, M_UFSMNT, M_WAITOK);
bzero((caddr_t)ump, sizeof *ump);
ump->um_fs = malloc((u_long)fs->fs_sbsize, M_UFSMNT,
@@ -523,7 +552,7 @@
ump->um_dev = dev;
ump->um_devvp = devvp;
ump->um_nindir = fs->fs_nindir;
- ump->um_bptrtodb = fs->fs_fsbtodb;
+ ump->um_bptrtodb = fs->fs_fsbtosb;
ump->um_seqinc = fs->fs_frag;
for (i = 0; i < MAXQUOTAS; i++)
ump->um_quotas[i] = NULLVP;
@@ -921,11 +950,12 @@
register struct buf *bp;
int i, error = 0;
- bp = getblk(mp->um_devvp, SBOFF >> (fs->fs_fshift - fs->fs_fsbtodb),
+ bp = getblk(mp->um_devvp, SBOFF >> (fs->fs_fshift - fs->fs_fsbtosb),
(int)fs->fs_sbsize, 0, 0);
bcopy((caddr_t)fs, bp->b_data, (u_int)fs->fs_sbsize);
/* Restore compatibility to old file systems. XXX */
dfs = (struct fs *)bp->b_data; /* XXX */
+ dfs->fs_fsbtosb = 0; /* XXX */
if (fs->fs_postblformat == FS_42POSTBLFMT) /* XXX */
dfs->fs_nrpos = -1; /* XXX */
if (fs->fs_inodefmt < FS_44INODEFMT) { /* XXX */
Index: sys/ufs/ffs/fs.h
===================================================================
RCS file: /mnt2/NetBSD/cvsroot/netbsd/sys/ufs/ffs/fs.h,v
retrieving revision 1.1.1.2
retrieving revision 1.3
diff -u -r1.1.1.2 -r1.3
--- fs.h 1997/06/23 16:31:07 1.1.1.2
+++ fs.h 1997/06/24 03:12:03 1.3
@@ -228,7 +228,8 @@
int32_t *fs_maxcluster; /* max cluster in each cyl group */
int32_t fs_cpc; /* cyl per cycle in postbl */
int16_t fs_opostbl[16][8]; /* old rotation block list head */
- int32_t fs_sparecon[49]; /* reserved for future constants */
+ int32_t fs_fsbtosb; /* fsbtodb and dbtofsb shift constant */
+ int32_t fs_sparecon[48]; /* reserved for future constants */
time_t fs_fscktime; /* last time fsck(8)ed */
int32_t fs_contigsumsize; /* size of cluster summary array */
int32_t fs_maxsymlinklen; /* max length of an internal symlink */
@@ -394,8 +395,8 @@
* Turn file system block numbers into disk block addresses.
* This maps file system blocks to device size blocks.
*/
-#define fsbtodb(fs, b) ((b) << (fs)->fs_fsbtodb)
-#define dbtofsb(fs, b) ((b) >> (fs)->fs_fsbtodb)
+#define fsbtodb(fs, b) ((b) << (fs)->fs_fsbtosb)
+#define dbtofsb(fs, b) ((b) >> (fs)->fs_fsbtosb)
/*
* Cylinder group macros to locate things in cylinder groups.
>Audit-Trail:
>Unformatted: