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The whole issue of not support VOP_LOCK for VBLK devices should be

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rethought.  This fixes YET another problem with unmounting filesystems.
The root cause is not fixed here, but at least the problem has gone
away.
This commit is contained in:
John Dyson 1996-09-10 05:28:23 +00:00
parent 1e76740a30
commit 9fea9a6f5b
1 changed files with 10 additions and 3 deletions
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13
sys/vm/vnode_pager.c
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@ -38,7 +38,7 @@
* SUCH DAMAGE.
*
* from: @(#)vnode_pager.c 7.5 (Berkeley) 4/20/91
* $Id: vnode_pager.c,v 1.62 1996/07/30 03:08:21 dyson Exp $
* $Id: vnode_pager.c,v 1.63 1996/08/21 21:56:23 dyson Exp $
*/
/*
@ -375,9 +375,16 @@ vnode_pager_uncache(vp)
return;
vm_object_reference(object);
VOP_UNLOCK(vp);
/*
* XXX We really should handle locking on
* VBLK devices...
*/
if (vp->v_type != VBLK)
VOP_UNLOCK(vp);
pager_cache(object, FALSE);
VOP_LOCK(vp);
if (vp->v_type != VBLK)
VOP_LOCK(vp);
return;
}