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Code Issues Releases Activity

Make DEVFS use PHK's specinfo struct as the source of dev_t and devsw.

Browse Source 
In lookup() however it's the other way around as we need to supply the
dev_t for the vnode, so devfs still has a copy of it stashed away.

Sourcing it from the vnode in the vnops however is useful as it makes
a lot of the code almost the same as that in specfs.
This commit is contained in:
Julian Elischer 1999-08-25 04:55:20 +00:00
parent 26b39b01f1
commit 0ff7b13acd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=50334
6 changed files with 127 additions and 135 deletions
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5
sys/kern/vfs_export.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)vfs_subr.c 8.31 (Berkeley) 5/26/95
* $Id: vfs_subr.c,v 1.217 1999/08/13 10:29:21 phk Exp $
* $Id: vfs_subr.c,v 1.218 1999/08/22 00:15:04 jdp Exp $
*/
/*
@ -78,7 +78,6 @@
static MALLOC_DEFINE(M_NETADDR, "Export Host", "Export host address structure");
static struct vnode *checkalias2 __P((struct vnode *nvp, dev_t dev, struct mount *mp));
static void insmntque __P((struct vnode *vp, struct mount *mp));
static void vclean __P((struct vnode *vp, int flags, struct proc *p));
static void vfree __P((struct vnode *));
@ -1318,7 +1317,7 @@ checkalias(nvp, nvp_rdev, mp)
return (checkalias2(nvp, dev, mp));
}
static struct vnode *
struct vnode *
checkalias2(nvp, dev, mp)
register struct vnode *nvp;
dev_t dev;

5
sys/kern/vfs_subr.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)vfs_subr.c 8.31 (Berkeley) 5/26/95
* $Id: vfs_subr.c,v 1.217 1999/08/13 10:29:21 phk Exp $
* $Id: vfs_subr.c,v 1.218 1999/08/22 00:15:04 jdp Exp $
*/
/*
@ -78,7 +78,6 @@
static MALLOC_DEFINE(M_NETADDR, "Export Host", "Export host address structure");
static struct vnode *checkalias2 __P((struct vnode *nvp, dev_t dev, struct mount *mp));
static void insmntque __P((struct vnode *vp, struct mount *mp));
static void vclean __P((struct vnode *vp, int flags, struct proc *p));
static void vfree __P((struct vnode *));
@ -1318,7 +1317,7 @@ checkalias(nvp, nvp_rdev, mp)
return (checkalias2(nvp, dev, mp));
}
static struct vnode *
struct vnode *
checkalias2(nvp, dev, mp)
register struct vnode *nvp;
dev_t dev;

35
sys/miscfs/devfs/devfs_tree.c
View File

@ -24,7 +24,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: devfs_tree.c,v 1.59 1999/01/27 22:42:04 dillon Exp $
* $Id: devfs_tree.c,v 1.60 1999/08/24 20:30:15 julian Exp $
*/
@ -501,8 +501,7 @@ dev_add_node(int entrytype, union typeinfo *by, dn_p proto,
* and device specific fields are correct
*/
dnp->ops = &devfs_spec_vnodeop_p;
dnp->by.Bdev.bdevsw = by->Bdev.bdevsw;
dnp->by.Bdev.dev = by->Bdev.dev;
dnp->by.dev.dev = by->dev.dev;
break;
case DEV_CDEV:
/*
@ -510,8 +509,7 @@ dev_add_node(int entrytype, union typeinfo *by, dn_p proto,
* and device specific fields are correct
*/
dnp->ops = &devfs_spec_vnodeop_p;
dnp->by.Cdev.cdevsw = by->Cdev.cdevsw;
dnp->by.Cdev.dev = by->Cdev.dev;
dnp->by.dev.dev = by->dev.dev;
break;
case DEV_DDEV:
/*
@ -984,8 +982,8 @@ DBPRINT(("(New vnode)"));
break;
case DEV_BDEV:
vn_p->v_type = VBLK;
if ((nvp = checkalias(vn_p,
dnp->by.Bdev.dev,
if ((nvp = checkalias2(vn_p,
dnp->by.dev.dev,
(struct mount *)0)) != NULL)
{
vput(vn_p);
@ -994,8 +992,8 @@ DBPRINT(("(New vnode)"));
break;
case DEV_CDEV:
vn_p->v_type = VCHR;
if ((nvp = checkalias(vn_p,
dnp->by.Cdev.dev,
if ((nvp = checkalias2(vn_p,
dnp->by.dev.dev,
(struct mount *)0)) != NULL)
{
vput(vn_p);
@ -1082,10 +1080,9 @@ devfs_add_devswf(void *devsw, int minor, int chrblk, uid_t uid,
int major;
devnm_p new_dev;
dn_p dnp; /* devnode for parent directory */
struct cdevsw *cd;
struct cdevsw *bd;
int retval;
union typeinfo by;
struct cdevsw *cd;
va_list ap;
char *name, *path, buf[256]; /* XXX */
@ -1121,17 +1118,15 @@ devfs_add_devswf(void *devsw, int minor, int chrblk, uid_t uid,
cd = devsw;
major = cd->d_maj;
if ( major == -1 ) return NULL;
by.Cdev.cdevsw = cd;
by.Cdev.dev = makedev(major, minor);
by.dev.dev = makedev(major, minor);
if( dev_add_entry(name, dnp, DEV_CDEV, &by, NULL, NULL, &new_dev))
return NULL;
break;
case DV_BLK:
bd = devsw;
major = bd->d_bmaj;
cd = devsw;
major = cd->d_bmaj;
if ( major == -1 ) return NULL;
by.Bdev.bdevsw = bd;
by.Bdev.dev = makedev(major, minor);
by.dev.dev = makebdev(major, minor);
if( dev_add_entry(name, dnp, DEV_BDEV, &by, NULL, NULL, &new_dev))
return NULL;
break;
@ -1291,6 +1286,7 @@ devfs_close_device(struct vnode *vn)
vput(vn);
}
#if 0
/*
* Little utility routine for compatibilty.
* Returns the dev_t that a devfs vnode represents.
@ -1303,11 +1299,12 @@ devfs_vntodev(struct vnode *vn)
dnp = (dn_p)vn->v_data;
switch (dnp->type) {
case DEV_BDEV:
return (dnp->by.Bdev.dev);
return (dnp->by.dev.dev);
break;
case DEV_CDEV:
return (dnp->by.Cdev.dev);
return (dnp->by.dev.dev);
break;
}
panic ("bad devfs DEVICE vnode");
}
#endif

204
sys/miscfs/devfs/devfs_vnops.c
View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: devfs_vnops.c,v 1.77 1999/08/17 04:01:55 alc Exp $
* $Id: devfs_vnops.c,v 1.78 1999/08/25 02:04:40 julian Exp $
*/
@ -332,13 +332,13 @@ devfs_access(struct vop_access_args *ap)
struct vnode *vp = ap->a_vp;
int mode = ap->a_mode;
struct ucred *cred = ap->a_cred;
dn_p file_node;
dn_p dnp;
int error;
gid_t *gp;
int i;
DBPRINT(("access\n"));
if ((error = devfs_vntodn(vp,&file_node)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
{
printf("devfs_vntodn returned %d ",error);
return error;
@ -356,14 +356,14 @@ DBPRINT(("access\n"));
* If not owner, then check group. If not a member of the
* group, then check public access.
*/
if (cred->cr_uid != file_node->uid)
if (cred->cr_uid != dnp->uid)
{
/* failing that.. try groups */
mode >>= 3;
gp = cred->cr_groups;
for (i = 0; i < cred->cr_ngroups; i++, gp++)
{
if (file_node->gid == *gp)
if (dnp->gid == *gp)
{
goto found;
}
@ -373,7 +373,7 @@ DBPRINT(("access\n"));
found:
;
}
if ((file_node->mode & mode) == mode)
if ((dnp->mode & mode) == mode)
return (0);
/*
* Root gets to do anything.
@ -396,63 +396,63 @@ devfs_getattr(struct vop_getattr_args *ap)
{
struct vnode *vp = ap->a_vp;
struct vattr *vap = ap->a_vap;
dn_p file_node;
dn_p dnp;
int error;
DBPRINT(("getattr\n"));
if ((error = devfs_vntodn(vp,&file_node)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
{
printf("devfs_vntodn returned %d ",error);
return error;
}
vap->va_rdev = 0;/* default value only */
vap->va_mode = file_node->mode;
switch (file_node->type)
vap->va_mode = dnp->mode;
switch (dnp->type)
{
case DEV_DIR:
vap->va_rdev = (udev_t)file_node->dvm;
vap->va_rdev = (udev_t)dnp->dvm;
vap->va_mode |= (S_IFDIR);
break;
case DEV_CDEV:
vap->va_rdev = dev2udev(file_node->by.Cdev.dev);
vap->va_rdev = dev2udev(vp->v_rdev);
vap->va_mode |= (S_IFCHR);
break;
case DEV_BDEV:
vap->va_rdev = dev2udev(file_node->by.Bdev.dev);
vap->va_rdev = dev2budev(vp->v_rdev);
vap->va_mode |= (S_IFBLK);
break;
case DEV_SLNK:
break;
}
vap->va_type = vp->v_type;
vap->va_nlink = file_node->links;
vap->va_uid = file_node->uid;
vap->va_gid = file_node->gid;
vap->va_fsid = (intptr_t)(void *)file_node->dvm;
vap->va_fileid = (intptr_t)(void *)file_node;
vap->va_size = file_node->len; /* now a u_quad_t */
vap->va_nlink = dnp->links;
vap->va_uid = dnp->uid;
vap->va_gid = dnp->gid;
vap->va_fsid = (intptr_t)(void *)dnp->dvm;
vap->va_fileid = (intptr_t)(void *)dnp;
vap->va_size = dnp->len; /* now a u_quad_t */
vap->va_blocksize = 512;
/*
* XXX If the node times are in Jan 1, 1970, then
* update them to the boot time.
* When we made the node, the date/time was not yet known.
*/
if(file_node->ctime.tv_sec < (24 * 3600))
if(dnp->ctime.tv_sec < (24 * 3600))
{
TIMEVAL_TO_TIMESPEC(&boottime,&(file_node->ctime));
TIMEVAL_TO_TIMESPEC(&boottime,&(file_node->mtime));
TIMEVAL_TO_TIMESPEC(&boottime,&(file_node->atime));
TIMEVAL_TO_TIMESPEC(&boottime,&(dnp->ctime));
TIMEVAL_TO_TIMESPEC(&boottime,&(dnp->mtime));
TIMEVAL_TO_TIMESPEC(&boottime,&(dnp->atime));
}
if (file_node->flags & IN_ACCESS) {
nanotime(&file_node->atime);
file_node->flags &= ~IN_ACCESS;
if (dnp->flags & IN_ACCESS) {
nanotime(&dnp->atime);
dnp->flags &= ~IN_ACCESS;
}
vap->va_ctime = file_node->ctime;
vap->va_mtime = file_node->mtime;
vap->va_atime = file_node->atime;
vap->va_ctime = dnp->ctime;
vap->va_mtime = dnp->mtime;
vap->va_atime = dnp->atime;
vap->va_gen = 0;
vap->va_flags = 0;
vap->va_bytes = file_node->len; /* u_quad_t */
vap->va_bytes = dnp->len; /* u_quad_t */
vap->va_filerev = 0; /* XXX */ /* u_quad_t */
vap->va_vaflags = 0; /* XXX */
return 0;
@ -474,12 +474,12 @@ devfs_setattr(struct vop_setattr_args *ap)
int error = 0;
gid_t *gp;
int i;
dn_p file_node;
dn_p dnp;
if (vap->va_flags != VNOVAL) /* XXX needs to be implemented */
return (EOPNOTSUPP);
if ((error = devfs_vntodn(vp,&file_node)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
{
printf("devfs_vntodn returned %d ",error);
return error;
@ -517,14 +517,14 @@ DBPRINT(("setattr\n"));
return (EROFS);
#endif
if (((vap->va_vaflags & VA_UTIMES_NULL) == 0) &&
(cred->cr_uid != file_node->uid) &&
(cred->cr_uid != dnp->uid) &&
suser_xxx(cred, p, 0))
return (EPERM);
if(VOP_ACCESS(vp, VWRITE, cred, p))
return (EACCES);
file_node->atime = vap->va_atime;
file_node->mtime = vap->va_mtime;
nanotime(&file_node->ctime);
dnp->atime = vap->va_atime;
dnp->mtime = vap->va_mtime;
nanotime(&dnp->ctime);
return (0);
}
@ -532,12 +532,12 @@ DBPRINT(("setattr\n"));
* Change the permissions.. must be root or owner to do this.
*/
if (vap->va_mode != (u_short)VNOVAL) {
if ((cred->cr_uid != file_node->uid)
if ((cred->cr_uid != dnp->uid)
&& suser_xxx(cred, p, 0))
return (EPERM);
/* set drwxwxrwx stuff */
file_node->mode &= ~07777;
file_node->mode |= vap->va_mode & 07777;
dnp->mode &= ~07777;
dnp->mode |= vap->va_mode & 07777;
}
/*
@ -546,7 +546,7 @@ DBPRINT(("setattr\n"));
if (vap->va_uid != (uid_t)VNOVAL) {
if (suser_xxx(cred, p, 0))
return (EPERM);
file_node->uid = vap->va_uid;
dnp->uid = vap->va_uid;
}
/*
@ -556,7 +556,7 @@ DBPRINT(("setattr\n"));
* whether you needed suser_xxx powers or not.
*/
if (vap->va_gid != (gid_t)VNOVAL) {
if (cred->cr_uid == file_node->uid){
if (cred->cr_uid == dnp->uid){
gp = cred->cr_groups;
for (i = 0; i < cred->cr_ngroups; i++, gp++) {
if (vap->va_gid == *gp)
@ -570,7 +570,7 @@ DBPRINT(("setattr\n"));
if( suser_xxx(cred, p, 0))
return (EPERM);
cando:
file_node->gid = vap->va_gid;
dnp->gid = vap->va_gid;
}
#if 0
/*
@ -601,21 +601,22 @@ devfs_xread(struct vop_read_args *ap)
} */
{
int error = 0;
dn_p file_node;
dn_p dnp;
struct vnode *vp = ap->a_vp;
DBPRINT(("read\n"));
if ((error = devfs_vntodn(ap->a_vp,&file_node)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
{
printf("devfs_vntodn returned %d ",error);
return error;
}
switch (ap->a_vp->v_type) {
switch (vp->v_type) {
case VREG:
return(EINVAL);
case VDIR:
return VOP_READDIR(ap->a_vp,ap->a_uio,ap->a_cred,
return VOP_READDIR(vp,ap->a_uio,ap->a_cred,
NULL,NULL,NULL);
case VCHR:
case VBLK:
@ -639,7 +640,9 @@ devfs_xwrite(struct vop_write_args *ap)
struct ucred *a_cred;
} */
{
switch (ap->a_vp->v_type) {
struct vnode *vp = ap->a_vp;
switch (vp->v_type) {
case VREG:
return(EINVAL);
case VDIR:
@ -1249,20 +1252,21 @@ devfs_reclaim(struct vop_reclaim_args *ap)
struct vnode *a_vp;
} */
{
dn_p file_node = NULL;
dn_p dnp = NULL;
int error;
struct vnode *vp = ap->a_vp;
DBPRINT(("reclaim\n"));
if ((error = devfs_vntodn(ap->a_vp,&file_node)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
{
printf("devfs_vntodn returned %d ",error);
return error;
}
ap->a_vp->v_data = NULL;
if (file_node) {
file_node->vn = 0;
file_node->vn_id = 0;
vp->v_data = NULL;
if (dnp) {
dnp->vn = 0;
dnp->vn_id = 0;
}
return(0);
}
@ -1368,8 +1372,8 @@ devfs_open( struct vop_open_args *ap)
if ((dsw->d_flags & D_TYPEMASK) == D_TTY)
vp->v_flag |= VISTTY;
VOP_UNLOCK(vp, 0, p);
error = (*dnp->by.Cdev.cdevsw->d_open)(
dnp->by.Cdev.dev,
error = (*vp->v_rdev->si_devsw->d_open)(
vp->v_rdev,
ap->a_mode,
S_IFCHR,
p);
@ -1396,8 +1400,8 @@ devfs_open( struct vop_open_args *ap)
error = vfs_mountedon(vp);
if (error)
return (error);
error = (*dnp->by.Bdev.bdevsw->d_open)(
dnp->by.Bdev.dev,
error = (*vp->v_rdev->si_devsw->d_open)(
vp->v_rdev,
ap->a_mode,
S_IFBLK,
p);
@ -1421,8 +1425,8 @@ devfs_open( struct vop_open_args *ap)
static int
devfs_read( struct vop_read_args *ap)
{
register struct vnode *vp = ap->a_vp;
register struct uio *uio = ap->a_uio;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct proc *p = uio->uio_procp;
struct buf *bp;
daddr_t bn, nextbn;
@ -1451,8 +1455,8 @@ devfs_read( struct vop_read_args *ap)
case VCHR:
VOP_UNLOCK(vp, 0, p);
error = (*dnp->by.Cdev.cdevsw->d_read)
(dnp->by.Cdev.dev, uio, ap->a_ioflag);
error = (*vp->v_rdev->si_devsw->d_read)
(vp->v_rdev, uio, ap->a_ioflag);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
break;
@ -1464,20 +1468,12 @@ devfs_read( struct vop_read_args *ap)
* be larger then the physical minimum.
*/
bsize = vp->v_rdev->si_bsize_best;
/* dev = vp->v_rdev;*/ /* your choice..*/
dev = dnp->by.Bdev.dev;
#if 1
if (dev != vp->v_rdev) {
printf("devfs: bad dev value at read\n");
dev = vp->v_rdev;
}
#endif
dev = vp->v_rdev;
bsize = dev->si_bsize_best;
/*
* This is a hack!
*/
if ( (ioctl = dnp->by.Bdev.bdevsw->d_ioctl) != NULL &&
if ( (ioctl = dev->si_devsw->d_ioctl) != NULL &&
(*ioctl)(dev, DIOCGPART, (caddr_t)&dpart, FREAD, p) == 0 &&
dpart.part->p_fstype == FS_BSDFFS &&
dpart.part->p_frag != 0 && dpart.part->p_fsize != 0)
@ -1532,14 +1528,14 @@ devfs_read( struct vop_read_args *ap)
static int
devfs_write( struct vop_write_args *ap)
{
register struct vnode *vp = ap->a_vp;
register struct uio *uio = ap->a_uio;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct proc *p = uio->uio_procp;
struct buf *bp;
daddr_t bn;
int bsize, blkmask;
struct partinfo dpart;
register int n, on;
int n, on;
int error = 0;
dn_p dnp;
@ -1558,8 +1554,8 @@ devfs_write( struct vop_write_args *ap)
case VCHR:
VOP_UNLOCK(vp, 0, p);
error = (*dnp->by.Cdev.cdevsw->d_write)
(dnp->by.Cdev.dev, uio, ap->a_ioflag);
error = (*vp->v_rdev->si_devsw->d_write)
(vp->v_rdev, uio, ap->a_ioflag);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
return (error);
@ -1575,8 +1571,8 @@ devfs_write( struct vop_write_args *ap)
*/
bsize = vp->v_rdev->si_bsize_best;
if ((dnp->by.Bdev.bdevsw->d_ioctl != NULL)
&& ((*dnp->by.Bdev.bdevsw->d_ioctl)(dnp->by.Bdev.dev, DIOCGPART,
if ((vp->v_rdev->si_devsw->d_ioctl != NULL)
&& ((*vp->v_rdev->si_devsw->d_ioctl)(vp->v_rdev, DIOCGPART,
(caddr_t)&dpart, FREAD, p) == 0)
&& (dpart.part->p_fstype == FS_BSDFFS)
&& (dpart.part->p_frag != 0)
@ -1628,21 +1624,22 @@ devfs_ioctl(struct vop_ioctl_args *ap)
{
dn_p dnp;
int error;
struct vnode *vp = ap->a_vp;
if ((error = devfs_vntodn(ap->a_vp,&dnp)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
return error;
switch (ap->a_vp->v_type) {
switch (vp->v_type) {
case VCHR:
return ((*dnp->by.Cdev.cdevsw->d_ioctl)(dnp->by.Cdev.dev,
return ((*vp->v_rdev->si_devsw->d_ioctl)(vp->v_rdev,
ap->a_command,
ap->a_data,
ap->a_fflag,
ap->a_p));
case VBLK:
return ((*dnp->by.Bdev.bdevsw->d_ioctl)(dnp->by.Bdev.dev,
return ((*vp->v_rdev->si_devsw->d_ioctl)(vp->v_rdev,
ap->a_command,
ap->a_data,
ap->a_fflag,
@ -1667,15 +1664,16 @@ devfs_poll(struct vop_poll_args *ap)
{
dn_p dnp;
int error;
struct vnode *vp = ap->a_vp;
if ((error = devfs_vntodn(ap->a_vp,&dnp)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
return error;
switch (ap->a_vp->v_type) {
switch (vp->v_type) {
case VCHR:
return (*dnp->by.Cdev.cdevsw->d_poll)(dnp->by.Cdev.dev,
return (*vp->v_rdev->si_devsw->d_poll)(vp->v_rdev,
ap->a_events,
ap->a_p);
default:
@ -1696,8 +1694,8 @@ devfs_poll(struct vop_poll_args *ap)
static int
devfs_fsync(struct vop_fsync_args *ap)
{
register struct vnode *vp = ap->a_vp;
register struct buf *bp;
struct vnode *vp = ap->a_vp;
struct buf *bp;
struct buf *nbp;
int s;
dn_p dnp;
@ -1776,23 +1774,24 @@ devfs_strategy(struct vop_strategy_args *ap)
struct buf *bp = ap->a_bp;
dn_p dnp;
int error;
struct vnode *vp = ap->a_vp;
if ((ap->a_vp->v_type != VCHR)
&& (ap->a_vp->v_type != VBLK))
if ((vp->v_type != VCHR)
&& (vp->v_type != VBLK))
panic ("devfs_strat:badvnode type");
if ((error = devfs_vntodn(ap->a_vp,&dnp)) != 0)
if ((error = devfs_vntodn(vp,&dnp)) != 0)
return error;
if (((bp->b_flags & B_READ) == 0) &&
(LIST_FIRST(&bp->b_dep)) != NULL && bioops.io_start)
(*bioops.io_start)(bp);
switch (ap->a_vp->v_type) {
switch (vp->v_type) {
case VCHR:
(*dnp->by.Cdev.cdevsw->d_strategy)(bp);
(*vp->v_rdev->si_devsw->d_strategy)(bp);
break;
case VBLK:
(*dnp->by.Bdev.bdevsw->d_strategy)(bp);
(*vp->v_rdev->si_devsw->d_strategy)(bp);
break;
default:
/* XXX set error code? */
@ -1815,13 +1814,14 @@ devfs_freeblks(struct vop_freeblks_args *ap)
{
struct cdevsw *bsw;
struct buf *bp;
struct vnode *vp = ap->a_vp;
bsw = devsw(ap->a_vp->v_rdev);
bsw = devsw(vp->v_rdev);
if ((bsw->d_flags & D_CANFREE) == 0)
return (0);
bp = geteblk(ap->a_length);
bp->b_flags |= B_FREEBUF;
bp->b_dev = ap->a_vp->v_rdev;
bp->b_dev = vp->v_rdev;
bp->b_blkno = ap->a_addr;
bp->b_offset = dbtob(ap->a_addr);
bp->b_bcount = ap->a_length;
@ -1869,7 +1869,7 @@ devfs_bmap(struct vop_bmap_args *ap)
static int
devfs_close(struct vop_close_args *ap)
{
register struct vnode *vp = ap->a_vp;
struct vnode *vp = ap->a_vp;
dn_p dnp;
struct cdevsw *devswp;
dev_t dev;
@ -1882,8 +1882,8 @@ devfs_close(struct vop_close_args *ap)
switch (vp->v_type) {
case VCHR:
devswp = dnp->by.Cdev.cdevsw;
dev = dnp->by.Cdev.dev;
devswp = vp->v_rdev->si_devsw;
dev = vp->v_rdev;
mode = S_IFCHR;
/*
* Hack: a tty device that is a controlling terminal
@ -1906,8 +1906,8 @@ devfs_close(struct vop_close_args *ap)
break;
case VBLK:
devswp = dnp->by.Bdev.bdevsw;
dev = dnp->by.Bdev.dev;
devswp = vp->v_rdev->si_devsw;
dev = vp->v_rdev;
mode = S_IFBLK;
/*
* On last close of a block device (that isn't mounted)
@ -2059,7 +2059,7 @@ devfs_getpages(struct vop_getpages_args *ap)
crhold(bp->b_wcred);
bp->b_blkno = blkno;
bp->b_lblkno = blkno;
pbgetvp(ap->a_vp, bp);
pbgetvp(vp, bp);
bp->b_bcount = size;
bp->b_bufsize = size;
bp->b_resid = 0;

9
sys/miscfs/devfs/devfsdefs.h
View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: devfsdefs.h,v 1.17 1998/09/30 20:33:46 sos Exp $
* $Id: devfsdefs.h,v 1.18 1998/11/09 07:03:04 peter Exp $
*/
#ifdef DEVFS_DEBUG
#define DBPRINT(A) printf(A)
@ -117,13 +117,8 @@ struct devnode /* the equivalent of an INODE */
dn_p *prevsiblingp; /* backpointer for the above */
union typeinfo {
struct {
struct cdevsw *cdevsw;
dev_t dev;
}Cdev;
struct {
struct cdevsw *bdevsw;
dev_t dev;
}Bdev;
}dev;
struct {
int (***ops)(void *); /* duplicate, used in dev_add_node */
int arg;

4
sys/sys/vnode.h
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)vnode.h 8.7 (Berkeley) 2/4/94
* $Id: vnode.h,v 1.94 1999/08/13 10:10:11 phk Exp $
* $Id: vnode.h,v 1.95 1999/08/22 00:15:15 jdp Exp $
*/
#ifndef _SYS_VNODE_H_
@ -568,6 +568,8 @@ int vop_panic __P((struct vop_generic_args *ap));
struct vnode *
checkalias __P((struct vnode *vp, udev_t nvp_rdev, struct mount *mp));
struct vnode *
checkalias2 __P((struct vnode *vp, dev_t nvp_rdev, struct mount *mp));
void vput __P((struct vnode *vp));
void vrele __P((struct vnode *vp));
void vref __P((struct vnode *vp));