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Remove a now unnecessary prototype from pmap.c. Also remove now

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unnecessary vm_fault's of page table pages in trap.c.
This commit is contained in:
John Dyson 1996-03-28 05:40:58 +00:00
parent 208bfdc98b
commit 4e489ec421
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14868
5 changed files with 5 additions and 96 deletions
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4
sys/amd64/amd64/pmap.c
View File

@ -39,7 +39,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91 * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
* $Id: pmap.c,v 1.81 1996/03/13 00:39:45 dyson Exp $ * $Id: pmap.c,v 1.82 1996/03/28 04:59:34 dyson Exp $
*/ */
/* /*
@ -182,8 +182,6 @@ static vm_page_t
static boolean_t static boolean_t
pmap_testbit __P((vm_offset_t pa, int bit)); pmap_testbit __P((vm_offset_t pa, int bit));
static void * pmap_getpdir __P((void)); static void * pmap_getpdir __P((void));
void pmap_prefault __P((pmap_t pmap, vm_offset_t addra,
vm_map_entry_t entry, vm_object_t object));
#if defined(PMAP_DIAGNOSTIC) #if defined(PMAP_DIAGNOSTIC)

31
sys/amd64/amd64/trap.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)trap.c 7.4 (Berkeley) 5/13/91 * from: @(#)trap.c 7.4 (Berkeley) 5/13/91
* $Id: trap.c,v 1.73 1996/03/02 19:37:41 peter Exp $ * $Id: trap.c,v 1.74 1996/03/27 17:33:39 bde Exp $
*/ */
/* /*
@ -523,23 +523,9 @@ trap_pfault(frame, usermode)
} }
} }
/*
* Check if page table is mapped, if not,
* fault it first
*/
v = (vm_offset_t) vtopte(va);
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
(void) vm_fault(map, trunc_page(v), VM_PROT_WRITE, FALSE);
mpte = pmap_use_pt( vm_map_pmap(map), va);
/* Fault in the user page: */ /* Fault in the user page: */
rv = vm_fault(map, va, ftype, FALSE); rv = vm_fault(map, va, ftype, FALSE);
pmap_unuse_pt( vm_map_pmap(map), va, mpte);
--p->p_lock; --p->p_lock;
} else { } else {
/* /*
@ -641,24 +627,9 @@ trap_pfault(frame, usermode)
} }
} }
/*
* Check if page table is mapped, if not,
* fault it first
*/
v = (vm_offset_t) vtopte(va);
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
(void) vm_fault(map,
trunc_page(v), VM_PROT_WRITE, FALSE);
mpte = pmap_use_pt( vm_map_pmap(map), va);
/* Fault in the user page: */ /* Fault in the user page: */
rv = vm_fault(map, va, ftype, FALSE); rv = vm_fault(map, va, ftype, FALSE);
pmap_unuse_pt( vm_map_pmap(map), va, mpte);
--p->p_lock; --p->p_lock;
} else { } else {
/* /*

4
sys/i386/i386/pmap.c
View File

@ -39,7 +39,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91 * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
* $Id: pmap.c,v 1.81 1996/03/13 00:39:45 dyson Exp $ * $Id: pmap.c,v 1.82 1996/03/28 04:59:34 dyson Exp $
*/ */
/* /*
@ -182,8 +182,6 @@ static vm_page_t
static boolean_t static boolean_t
pmap_testbit __P((vm_offset_t pa, int bit)); pmap_testbit __P((vm_offset_t pa, int bit));
static void * pmap_getpdir __P((void)); static void * pmap_getpdir __P((void));
void pmap_prefault __P((pmap_t pmap, vm_offset_t addra,
vm_map_entry_t entry, vm_object_t object));
#if defined(PMAP_DIAGNOSTIC) #if defined(PMAP_DIAGNOSTIC)

31
sys/i386/i386/trap.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)trap.c 7.4 (Berkeley) 5/13/91 * from: @(#)trap.c 7.4 (Berkeley) 5/13/91
* $Id: trap.c,v 1.73 1996/03/02 19:37:41 peter Exp $ * $Id: trap.c,v 1.74 1996/03/27 17:33:39 bde Exp $
*/ */
/* /*
@ -523,23 +523,9 @@ trap_pfault(frame, usermode)
} }
} }
/*
* Check if page table is mapped, if not,
* fault it first
*/
v = (vm_offset_t) vtopte(va);
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
(void) vm_fault(map, trunc_page(v), VM_PROT_WRITE, FALSE);
mpte = pmap_use_pt( vm_map_pmap(map), va);
/* Fault in the user page: */ /* Fault in the user page: */
rv = vm_fault(map, va, ftype, FALSE); rv = vm_fault(map, va, ftype, FALSE);
pmap_unuse_pt( vm_map_pmap(map), va, mpte);
--p->p_lock; --p->p_lock;
} else { } else {
/* /*
@ -641,24 +627,9 @@ trap_pfault(frame, usermode)
} }
} }
/*
* Check if page table is mapped, if not,
* fault it first
*/
v = (vm_offset_t) vtopte(va);
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
(void) vm_fault(map,
trunc_page(v), VM_PROT_WRITE, FALSE);
mpte = pmap_use_pt( vm_map_pmap(map), va);
/* Fault in the user page: */ /* Fault in the user page: */
rv = vm_fault(map, va, ftype, FALSE); rv = vm_fault(map, va, ftype, FALSE);
pmap_unuse_pt( vm_map_pmap(map), va, mpte);
--p->p_lock; --p->p_lock;
} else { } else {
/* /*

31
sys/kern/subr_trap.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)trap.c 7.4 (Berkeley) 5/13/91 * from: @(#)trap.c 7.4 (Berkeley) 5/13/91
* $Id: trap.c,v 1.73 1996/03/02 19:37:41 peter Exp $ * $Id: trap.c,v 1.74 1996/03/27 17:33:39 bde Exp $
*/ */
/* /*
@ -523,23 +523,9 @@ trap_pfault(frame, usermode)
} }
} }
/*
* Check if page table is mapped, if not,
* fault it first
*/
v = (vm_offset_t) vtopte(va);
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
(void) vm_fault(map, trunc_page(v), VM_PROT_WRITE, FALSE);
mpte = pmap_use_pt( vm_map_pmap(map), va);
/* Fault in the user page: */ /* Fault in the user page: */
rv = vm_fault(map, va, ftype, FALSE); rv = vm_fault(map, va, ftype, FALSE);
pmap_unuse_pt( vm_map_pmap(map), va, mpte);
--p->p_lock; --p->p_lock;
} else { } else {
/* /*
@ -641,24 +627,9 @@ trap_pfault(frame, usermode)
} }
} }
/*
* Check if page table is mapped, if not,
* fault it first
*/
v = (vm_offset_t) vtopte(va);
/* Fault the pte only if needed: */
if (*((int *)vtopte(v)) == 0)
(void) vm_fault(map,
trunc_page(v), VM_PROT_WRITE, FALSE);
mpte = pmap_use_pt( vm_map_pmap(map), va);
/* Fault in the user page: */ /* Fault in the user page: */
rv = vm_fault(map, va, ftype, FALSE); rv = vm_fault(map, va, ftype, FALSE);
pmap_unuse_pt( vm_map_pmap(map), va, mpte);
--p->p_lock; --p->p_lock;
} else { } else {
/* /*