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Workarround for DIAGNOSTIC kernel's panic in union_lookup().

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Union_removed_upper() clobbers cache when file is removed.
Upper vp will be removed by union_reclaim().
This commit is contained in:
KATO Takenori 1998-02-06 02:42:21 +00:00
parent eb45f34378
commit 87884aad6e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=33129
2 changed files with 14 additions and 2 deletions
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8
sys/fs/unionfs/union_vnops.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* @(#)union_vnops.c 8.32 (Berkeley) 6/23/95
* $Id: union_vnops.c,v 1.50 1998/01/22 02:14:59 kato Exp $
* $Id: union_vnops.c,v 1.51 1998/02/04 22:32:55 eivind Exp $
*/
#include "opt_diagnostic.h"
@ -1087,8 +1087,11 @@ union_remove(ap)
if (union_dowhiteout(un, cnp->cn_cred, cnp->cn_proc))
cnp->cn_flags |= DOWHITEOUT;
error = VOP_REMOVE(dvp, vp, cnp);
#if 0
/* XXX */
if (!error)
union_removed_upper(un);
#endif
} else {
FIXUP(dun, p);
error = union_mkwhiteout(
@ -1332,8 +1335,11 @@ union_rmdir(ap)
if (union_dowhiteout(un, cnp->cn_cred, cnp->cn_proc))
cnp->cn_flags |= DOWHITEOUT;
error = VOP_RMDIR(dvp, vp, ap->a_cnp);
#if 0
/* XXX */
if (!error)
union_removed_upper(un);
#endif
} else {
FIXUP(dun, p);
error = union_mkwhiteout(

8
sys/miscfs/union/union_vnops.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* @(#)union_vnops.c 8.32 (Berkeley) 6/23/95
* $Id: union_vnops.c,v 1.50 1998/01/22 02:14:59 kato Exp $
* $Id: union_vnops.c,v 1.51 1998/02/04 22:32:55 eivind Exp $
*/
#include "opt_diagnostic.h"
@ -1087,8 +1087,11 @@ union_remove(ap)
if (union_dowhiteout(un, cnp->cn_cred, cnp->cn_proc))
cnp->cn_flags |= DOWHITEOUT;
error = VOP_REMOVE(dvp, vp, cnp);
#if 0
/* XXX */
if (!error)
union_removed_upper(un);
#endif
} else {
FIXUP(dun, p);
error = union_mkwhiteout(
@ -1332,8 +1335,11 @@ union_rmdir(ap)
if (union_dowhiteout(un, cnp->cn_cred, cnp->cn_proc))
cnp->cn_flags |= DOWHITEOUT;
error = VOP_RMDIR(dvp, vp, ap->a_cnp);
#if 0
/* XXX */
if (!error)
union_removed_upper(un);
#endif
} else {
FIXUP(dun, p);
error = union_mkwhiteout(