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Updated the major number check in vfs_object_create(). It's not

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clear if the check is necessary, but vfs_object_create() is called
for all vnodes and it was silly to create objects for VBLK vnodes
that don't even have a driver.
This commit is contained in:
bde 1998-10-26 08:07:00 +00:00
parent 84009a0905
commit 285a46e7e4
2 changed files with 6 additions and 4 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 1.167 1998/10/25 16:11:49 bde Exp $
* $Id: vfs_subr.c,v 1.168 1998/10/25 17:44:52 phk Exp $
*/
/*
@ -2524,7 +2524,8 @@ vfs_object_create(vp, p, cred, waslocked)
if ((error = VOP_GETATTR(vp, &vat, cred, p)) != 0)
goto retn;
object = vnode_pager_alloc(vp, vat.va_size, 0, 0);
} else if (major(vp->v_rdev) < nblkdev) {
} else if (major(vp->v_rdev) < nblkdev &&
bdevsw[major(vp->v_rdev)] != NULL) {
/*
* This simply allocates the biggest object possible
* for a VBLK vnode. This should be fixed, but doesn't

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 1.167 1998/10/25 16:11:49 bde Exp $
* $Id: vfs_subr.c,v 1.168 1998/10/25 17:44:52 phk Exp $
*/
/*
@ -2524,7 +2524,8 @@ vfs_object_create(vp, p, cred, waslocked)
if ((error = VOP_GETATTR(vp, &vat, cred, p)) != 0)
goto retn;
object = vnode_pager_alloc(vp, vat.va_size, 0, 0);
} else if (major(vp->v_rdev) < nblkdev) {
} else if (major(vp->v_rdev) < nblkdev &&
bdevsw[major(vp->v_rdev)] != NULL) {
/*
* This simply allocates the biggest object possible
* for a VBLK vnode. This should be fixed, but doesn't