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Take VBLK devices further out of their missery.

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This should fix the panic I introduced in my previous commit on this topic.
This commit is contained in:
Poul-Henning Kamp 2000-11-02 21:14:13 +00:00
parent 4e457f4298
commit 1d7e3e42e7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=68259
8 changed files with 31 additions and 47 deletions
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11
sys/fs/specfs/spec_vnops.c
View File

@ -139,21 +139,14 @@ spec_open(ap)
struct cdevsw *dsw;
const char *cp;
if (vp->v_type == VBLK)
return ENXIO;
/*
* Don't allow open if fs is mounted -nodev.
*/
if (vp->v_mount && (vp->v_mount->mnt_flag & MNT_NODEV))
return (ENXIO);
if (vp->v_type == VBLK) {
if (*dev->si_name != '\0')
printf("Device \"%s\" ", dev->si_name);
else
printf("Device char-major=%d minor=0x%x ",
major(dev), minor(dev));
printf("failed attempt to open in block mode\n");
return ENXIO;
}
dsw = devsw(dev);
if ( (dsw == NULL) || (dsw->d_open == NULL))
return ENXIO;

2
sys/kern/vfs_bio.c
View File

@ -2241,7 +2241,7 @@ getblk(struct vnode * vp, daddr_t blkno, int size, int slpflag, int slptimeo)
if (vmio) {
bp->b_flags |= B_VMIO;
#if defined(VFS_BIO_DEBUG)
if (vp->v_type != VREG && vp->v_type != VBLK)
if (vp->v_type != VREG)
printf("getblk: vmioing file type %d???\n", vp->v_type);
#endif
} else {

23
sys/kern/vfs_export.c
View File

@ -1234,7 +1234,6 @@ reassignbuf(bp, newvp)
delay = dirdelay;
break;
case VCHR:
case VBLK:
if (newvp->v_rdev->si_mountpoint != NULL) {
delay = metadelay;
break;
@ -1314,9 +1313,8 @@ reassignbuf(bp, newvp)
}
/*
* Create a vnode for a block device.
* Create a vnode for a device.
* Used for mounting the root file system.
* XXX: This now changed to a VCHR due to the block/char merging.
*/
int
bdevvp(dev, vpp)
@ -1362,9 +1360,11 @@ addaliasu(nvp, nvp_rdev)
vop_t **ops;
dev_t dev;
if (nvp->v_type != VBLK && nvp->v_type != VCHR)
if (nvp->v_type == VBLK)
return (nvp);
if (nvp->v_type != VCHR)
panic("addaliasu on non-special vnode");
dev = udev2dev(nvp_rdev, nvp->v_type == VBLK ? 1 : 0);
dev = udev2dev(nvp_rdev, 0);
/*
* Check to see if we have a bdevvp vnode with no associated
* filesystem. If so, we want to associate the filesystem of
@ -1405,8 +1405,7 @@ addalias(nvp, dev)
dev_t dev;
{
KASSERT(nvp->v_type == VBLK || nvp->v_type == VCHR,
("addalias on non-special vnode"));
KASSERT(nvp->v_type == VCHR, ("addalias on non-special vnode"));
nvp->v_rdev = dev;
simple_lock(&spechash_slock);
SLIST_INSERT_HEAD(&dev->si_hlist, nvp, v_specnext);
@ -1682,7 +1681,7 @@ vflush(mp, skipvp, flags)
*/
if (flags & FORCECLOSE) {
simple_unlock(&mntvnode_slock);
if (vp->v_type != VBLK && vp->v_type != VCHR) {
if (vp->v_type != VCHR) {
vgonel(vp, p);
} else {
vclean(vp, 0, p);
@ -1925,7 +1924,7 @@ vgonel(vp, p)
* If special device, remove it from special device alias list
* if it is on one.
*/
if ((vp->v_type == VBLK || vp->v_type == VCHR) && vp->v_rdev != NULL) {
if (vp->v_type == VCHR && vp->v_rdev != NULL && vp->v_rdev != NODEV) {
simple_lock(&spechash_slock);
SLIST_REMOVE(&vp->v_rdev->si_hlist, vp, vnode, v_specnext);
freedev(vp->v_rdev);
@ -2932,13 +2931,13 @@ sync_print(ap)
}
/*
* extract the dev_t from a VBLK or VCHR
* extract the dev_t from a VCHR
*/
dev_t
vn_todev(vp)
struct vnode *vp;
{
if (vp->v_type != VBLK && vp->v_type != VCHR)
if (vp->v_type != VCHR)
return (NODEV);
return (vp->v_rdev);
}
@ -2953,7 +2952,7 @@ vn_isdisk(vp, errp)
{
struct cdevsw *cdevsw;
if (vp->v_type != VBLK && vp->v_type != VCHR) {
if (vp->v_type != VCHR) {
if (errp != NULL)
*errp = ENOTBLK;
return (0);

2
sys/kern/vfs_extattr.c
View File

@ -3189,7 +3189,7 @@ revoke(p, uap)
return (error);
vp = nd.ni_vp;
NDFREE(&nd, NDF_ONLY_PNBUF);
if (vp->v_type != VCHR && vp->v_type != VBLK) {
if (vp->v_type != VCHR) {
error = EINVAL;
goto out;
}

23
sys/kern/vfs_subr.c
View File

@ -1234,7 +1234,6 @@ reassignbuf(bp, newvp)
delay = dirdelay;
break;
case VCHR:
case VBLK:
if (newvp->v_rdev->si_mountpoint != NULL) {
delay = metadelay;
break;
@ -1314,9 +1313,8 @@ reassignbuf(bp, newvp)
}
/*
* Create a vnode for a block device.
* Create a vnode for a device.
* Used for mounting the root file system.
* XXX: This now changed to a VCHR due to the block/char merging.
*/
int
bdevvp(dev, vpp)
@ -1362,9 +1360,11 @@ addaliasu(nvp, nvp_rdev)
vop_t **ops;
dev_t dev;
if (nvp->v_type != VBLK && nvp->v_type != VCHR)
if (nvp->v_type == VBLK)
return (nvp);
if (nvp->v_type != VCHR)
panic("addaliasu on non-special vnode");
dev = udev2dev(nvp_rdev, nvp->v_type == VBLK ? 1 : 0);
dev = udev2dev(nvp_rdev, 0);
/*
* Check to see if we have a bdevvp vnode with no associated
* filesystem. If so, we want to associate the filesystem of
@ -1405,8 +1405,7 @@ addalias(nvp, dev)
dev_t dev;
{
KASSERT(nvp->v_type == VBLK || nvp->v_type == VCHR,
("addalias on non-special vnode"));
KASSERT(nvp->v_type == VCHR, ("addalias on non-special vnode"));
nvp->v_rdev = dev;
simple_lock(&spechash_slock);
SLIST_INSERT_HEAD(&dev->si_hlist, nvp, v_specnext);
@ -1682,7 +1681,7 @@ vflush(mp, skipvp, flags)
*/
if (flags & FORCECLOSE) {
simple_unlock(&mntvnode_slock);
if (vp->v_type != VBLK && vp->v_type != VCHR) {
if (vp->v_type != VCHR) {
vgonel(vp, p);
} else {
vclean(vp, 0, p);
@ -1925,7 +1924,7 @@ vgonel(vp, p)
* If special device, remove it from special device alias list
* if it is on one.
*/
if ((vp->v_type == VBLK || vp->v_type == VCHR) && vp->v_rdev != NULL) {
if (vp->v_type == VCHR && vp->v_rdev != NULL && vp->v_rdev != NODEV) {
simple_lock(&spechash_slock);
SLIST_REMOVE(&vp->v_rdev->si_hlist, vp, vnode, v_specnext);
freedev(vp->v_rdev);
@ -2932,13 +2931,13 @@ sync_print(ap)
}
/*
* extract the dev_t from a VBLK or VCHR
* extract the dev_t from a VCHR
*/
dev_t
vn_todev(vp)
struct vnode *vp;
{
if (vp->v_type != VBLK && vp->v_type != VCHR)
if (vp->v_type != VCHR)
return (NODEV);
return (vp->v_rdev);
}
@ -2953,7 +2952,7 @@ vn_isdisk(vp, errp)
{
struct cdevsw *cdevsw;
if (vp->v_type != VBLK && vp->v_type != VCHR) {
if (vp->v_type != VCHR) {
if (errp != NULL)
*errp = ENOTBLK;
return (0);

2
sys/kern/vfs_syscalls.c
View File

@ -3189,7 +3189,7 @@ revoke(p, uap)
return (error);
vp = nd.ni_vp;
NDFREE(&nd, NDF_ONLY_PNBUF);
if (vp->v_type != VCHR && vp->v_type != VBLK) {
if (vp->v_type != VCHR) {
error = EINVAL;
goto out;
}

4
sys/kern/vfs_vnops.c
View File

@ -311,7 +311,7 @@ vn_rdwr(rw, vp, base, len, offset, segflg, ioflg, cred, aresid, p)
if ((ioflg & IO_NODELOCKED) == 0) {
mp = NULL;
if (rw == UIO_WRITE &&
vp->v_type != VCHR && vp->v_type != VBLK &&
vp->v_type != VCHR &&
(error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
return (error);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
@ -407,7 +407,7 @@ vn_write(fp, uio, cred, flags, p)
(vp->v_mount && (vp->v_mount->mnt_flag & MNT_SYNCHRONOUS)))
ioflag |= IO_SYNC;
mp = NULL;
if (vp->v_type != VCHR && vp->v_type != VBLK &&
if (vp->v_type != VCHR &&
(error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
return (error);
VOP_LEASE(vp, p, cred, LEASE_WRITE);

11
sys/miscfs/specfs/spec_vnops.c
View File

@ -139,21 +139,14 @@ spec_open(ap)
struct cdevsw *dsw;
const char *cp;
if (vp->v_type == VBLK)
return ENXIO;
/*
* Don't allow open if fs is mounted -nodev.
*/
if (vp->v_mount && (vp->v_mount->mnt_flag & MNT_NODEV))
return (ENXIO);
if (vp->v_type == VBLK) {
if (*dev->si_name != '\0')
printf("Device \"%s\" ", dev->si_name);
else
printf("Device char-major=%d minor=0x%x ",
major(dev), minor(dev));
printf("failed attempt to open in block mode\n");
return ENXIO;
}
dsw = devsw(dev);
if ( (dsw == NULL) || (dsw->d_open == NULL))
return ENXIO;