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Deleted KLOCK-hack.
This commit is contained in:
KATO Takenori
parent
aa76a48760
commit
589421d418
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=33844
@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* @(#)union.h 8.9 (Berkeley) 12/10/94
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* $Id: union.h,v 1.10 1998/01/20 10:02:50 kato Exp $
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* $Id: union.h,v 1.11 1998/02/10 03:32:03 kato Exp $
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*/
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struct union_args {
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@ -93,10 +93,6 @@ struct union_node {
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#define UN_ULOCK 0x04 /* Upper node is locked */
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#define UN_KLOCK 0x08 /* Keep upper node locked on vput */
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#define UN_CACHED 0x10 /* In union cache */
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#define UN_GLOCK 0x20 /* Keep upper node locked on vget */
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#define SETGLOCK(un) (un)->un_flags |= UN_GLOCK
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#define CLEARGLOCK(un) (un)->un_flags &= ~UN_GLOCK
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extern int union_allocvp __P((struct vnode **, struct mount *,
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struct vnode *, struct vnode *,
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* @(#)union_subr.c 8.20 (Berkeley) 5/20/95
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* $Id: union_subr.c,v 1.27 1998/02/06 12:13:44 eivind Exp $
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* $Id: union_subr.c,v 1.28 1998/02/10 03:32:05 kato Exp $
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*/
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#include <sys/param.h>
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@ -363,27 +363,11 @@ union_allocvp(vpp, mp, undvp, dvp, cnp, uppervp, lowervp, docache)
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(un->un_uppervp == uppervp ||
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un->un_uppervp == NULLVP) &&
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(UNIONTOV(un)->v_mount == mp)) {
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/*
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* Do not assume that vget() does not
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* lock the vnode even though flags
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* argument is 0.
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*/
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if ((un->un_uppervp != NULLVP) &&
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((un->un_flags & UN_KLOCK) == 0)) {
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SETGLOCK(un);
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klocked = 1;
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} else {
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klocked = 0;
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}
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if (vget(UNIONTOV(un), 0,
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cnp ? cnp->cn_proc : NULL)) {
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if (klocked)
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CLEARGLOCK(un);
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union_list_unlock(hash);
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goto loop;
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}
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if (klocked)
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CLEARGLOCK(un);
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break;
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}
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}
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* @(#)union_vnops.c 8.32 (Berkeley) 6/23/95
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* $Id: union_vnops.c,v 1.53 1998/02/06 12:13:44 eivind Exp $
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* $Id: union_vnops.c,v 1.54 1998/02/10 03:32:07 kato Exp $
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*/
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#include <sys/param.h>
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@ -1533,11 +1533,9 @@ union_lock(ap)
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if (un->un_uppervp != NULLVP) {
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if (((un->un_flags & UN_ULOCK) == 0) &&
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(vp->v_usecount != 0)) {
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if ((un->un_flags & UN_GLOCK) == 0) {
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error = vn_lock(un->un_uppervp, flags, p);
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if (error)
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return (error);
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}
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error = vn_lock(un->un_uppervp, flags, p);
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if (error)
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return (error);
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un->un_flags |= UN_ULOCK;
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}
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#ifdef DIAGNOSTIC
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@ -1602,7 +1600,7 @@ union_unlock(ap)
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un->un_flags &= ~UN_LOCKED;
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if ((un->un_flags & (UN_ULOCK|UN_KLOCK|UN_GLOCK)) == UN_ULOCK)
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if ((un->un_flags & (UN_ULOCK|UN_KLOCK)) == UN_ULOCK)
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VOP_UNLOCK(un->un_uppervp, 0, p);
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un->un_flags &= ~(UN_ULOCK|UN_KLOCK);
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* @(#)union.h 8.9 (Berkeley) 12/10/94
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* $Id: union.h,v 1.10 1998/01/20 10:02:50 kato Exp $
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* $Id: union.h,v 1.11 1998/02/10 03:32:03 kato Exp $
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*/
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struct union_args {
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@ -93,10 +93,6 @@ struct union_node {
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#define UN_ULOCK 0x04 /* Upper node is locked */
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#define UN_KLOCK 0x08 /* Keep upper node locked on vput */
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#define UN_CACHED 0x10 /* In union cache */
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#define UN_GLOCK 0x20 /* Keep upper node locked on vget */
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#define SETGLOCK(un) (un)->un_flags |= UN_GLOCK
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#define CLEARGLOCK(un) (un)->un_flags &= ~UN_GLOCK
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extern int union_allocvp __P((struct vnode **, struct mount *,
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struct vnode *, struct vnode *,
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* @(#)union_subr.c 8.20 (Berkeley) 5/20/95
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* $Id: union_subr.c,v 1.27 1998/02/06 12:13:44 eivind Exp $
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* $Id: union_subr.c,v 1.28 1998/02/10 03:32:05 kato Exp $
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*/
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#include <sys/param.h>
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@ -363,27 +363,11 @@ union_allocvp(vpp, mp, undvp, dvp, cnp, uppervp, lowervp, docache)
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(un->un_uppervp == uppervp ||
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un->un_uppervp == NULLVP) &&
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(UNIONTOV(un)->v_mount == mp)) {
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/*
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* Do not assume that vget() does not
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* lock the vnode even though flags
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* argument is 0.
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*/
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if ((un->un_uppervp != NULLVP) &&
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((un->un_flags & UN_KLOCK) == 0)) {
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SETGLOCK(un);
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klocked = 1;
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} else {
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klocked = 0;
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}
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if (vget(UNIONTOV(un), 0,
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cnp ? cnp->cn_proc : NULL)) {
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if (klocked)
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CLEARGLOCK(un);
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union_list_unlock(hash);
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goto loop;
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}
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if (klocked)
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CLEARGLOCK(un);
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break;
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}
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}
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* @(#)union_vnops.c 8.32 (Berkeley) 6/23/95
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* $Id: union_vnops.c,v 1.53 1998/02/06 12:13:44 eivind Exp $
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* $Id: union_vnops.c,v 1.54 1998/02/10 03:32:07 kato Exp $
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*/
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#include <sys/param.h>
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@ -1533,11 +1533,9 @@ union_lock(ap)
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if (un->un_uppervp != NULLVP) {
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if (((un->un_flags & UN_ULOCK) == 0) &&
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(vp->v_usecount != 0)) {
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if ((un->un_flags & UN_GLOCK) == 0) {
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error = vn_lock(un->un_uppervp, flags, p);
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if (error)
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return (error);
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}
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error = vn_lock(un->un_uppervp, flags, p);
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if (error)
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return (error);
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un->un_flags |= UN_ULOCK;
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}
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#ifdef DIAGNOSTIC
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@ -1602,7 +1600,7 @@ union_unlock(ap)
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un->un_flags &= ~UN_LOCKED;
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if ((un->un_flags & (UN_ULOCK|UN_KLOCK|UN_GLOCK)) == UN_ULOCK)
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if ((un->un_flags & (UN_ULOCK|UN_KLOCK)) == UN_ULOCK)
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VOP_UNLOCK(un->un_uppervp, 0, p);
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un->un_flags &= ~(UN_ULOCK|UN_KLOCK);
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