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Code Issues Releases Activity

Fix a very significant cnt.v_wire_count leak in vm_page.c, and some

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minor leaks in pmap.c.  Bruce Evans made me aware of this problem.
This commit is contained in:
John Dyson 1996-06-12 06:52:12 +00:00
parent a01e62f093
commit 419702a468
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=16324
3 changed files with 14 additions and 9 deletions
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10
sys/amd64/amd64/pmap.c
View File

@ -39,7 +39,7 @@
* SUCH DAMAGE.
*
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
* $Id: pmap.c,v 1.102 1996/06/08 06:48:27 dyson Exp $
* $Id: pmap.c,v 1.103 1996/06/12 05:02:52 gpalmer Exp $
*/
/*
@ -418,8 +418,8 @@ pmap_unwire_pte_hold(vm_page_t m) {
--cnt.v_wire_count;
m->dirty = 0;
vm_page_deactivate(m);
return 1;
}
return 1;
}
return 0;
}
@ -1431,8 +1431,9 @@ _pmap_allocpte(pmap, va, ptepindex)
s = splvm();
vm_page_unqueue(m);
splx(s);
if (m->wire_count == 0)
++cnt.v_wire_count;
++m->wire_count;
++cnt.v_wire_count;
}
/*
@ -1510,8 +1511,9 @@ pmap_allocpte(pmap, va)
int s = splvm();
vm_page_unqueue(m);
splx(s);
if (m->wire_count == 0)
++cnt.v_wire_count;
++m->wire_count;
++cnt.v_wire_count;
}
++m->hold_count;
return m;

10
sys/i386/i386/pmap.c
View File

@ -39,7 +39,7 @@
* SUCH DAMAGE.
*
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
* $Id: pmap.c,v 1.102 1996/06/08 06:48:27 dyson Exp $
* $Id: pmap.c,v 1.103 1996/06/12 05:02:52 gpalmer Exp $
*/
/*
@ -418,8 +418,8 @@ pmap_unwire_pte_hold(vm_page_t m) {
--cnt.v_wire_count;
m->dirty = 0;
vm_page_deactivate(m);
return 1;
}
return 1;
}
return 0;
}
@ -1431,8 +1431,9 @@ _pmap_allocpte(pmap, va, ptepindex)
s = splvm();
vm_page_unqueue(m);
splx(s);
if (m->wire_count == 0)
++cnt.v_wire_count;
++m->wire_count;
++cnt.v_wire_count;
}
/*
@ -1510,8 +1511,9 @@ pmap_allocpte(pmap, va)
int s = splvm();
vm_page_unqueue(m);
splx(s);
if (m->wire_count == 0)
++cnt.v_wire_count;
++m->wire_count;
++cnt.v_wire_count;
}
++m->hold_count;
return m;

3
sys/vm/vm_page.c
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
* $Id: vm_page.c,v 1.54 1996/06/05 03:31:48 dyson Exp $
* $Id: vm_page.c,v 1.55 1996/06/08 06:48:34 dyson Exp $
*/
/*
@ -776,6 +776,7 @@ vm_page_freechk_and_unqueue(m)
m->wire_count, m->pindex);
}
m->wire_count = 0;
cnt.v_wire_count--;
}
return 1;