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Used lookasidelists for rmap's.

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svn path=/trunk/; revision=3972
This commit is contained in:
Hartmut Birr
2003-01-11 15:28:18 +00:00
parent ac22af2d68
commit 14c1929fc2
1 changed files with 13 additions and 7 deletions
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reactos/ntoskrnl/mm/rmap.c
+13 -7
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@@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: rmap.c,v 1.14 2002/11/09 20:27:03 hbirr Exp $
/* $Id: rmap.c,v 1.15 2003/01/11 15:28:18 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top directory
* PROJECT: ReactOS kernel
@@ -50,6 +50,7 @@ typedef struct _MM_RMAP_ENTRY
/* GLOBALS ******************************************************************/
static FAST_MUTEX RmapListLock;
static NPAGED_LOOKASIDE_LIST RmapLookasideList;
/* FUNCTIONS ****************************************************************/
@@ -57,6 +58,13 @@ VOID
MmInitializeRmapList(VOID)
{
ExInitializeFastMutex(&RmapListLock);
ExInitializeNPagedLookasideList (&RmapLookasideList,
NULL,
NULL,
0,
sizeof(MM_RMAP_ENTRY),
TAG_RMAP,
50);
}
NTSTATUS
@@ -356,7 +364,7 @@ MmInsertRmap(PHYSICAL_ADDRESS PhysicalAddress, PEPROCESS Process,
Address = (PVOID)PAGE_ROUND_DOWN(Address);
new_entry = ExAllocatePoolWithTag(NonPagedPool, sizeof(MM_RMAP_ENTRY), TAG_RMAP);
new_entry = ExAllocateFromNPagedLookasideList(&RmapLookasideList);
if (new_entry == NULL)
{
KeBugCheck(0);
@@ -405,7 +413,7 @@ MmDeleteAllRmaps(PHYSICAL_ADDRESS PhysicalAddress, PVOID Context,
DeleteMapping(Context, previous_entry->Process,
previous_entry->Address);
}
ExFreePool(previous_entry);
ExFreeToNPagedLookasideList(&RmapLookasideList, previous_entry);
}
MmSetRmapListHeadPage(PhysicalAddress, NULL);
ExReleaseFastMutex(&RmapListLock);
@@ -428,15 +436,13 @@ MmDeleteRmap(PHYSICAL_ADDRESS PhysicalAddress, PEPROCESS Process,
if (previous_entry == NULL)
{
MmSetRmapListHeadPage(PhysicalAddress, current_entry->Next);
ExReleaseFastMutex(&RmapListLock);
ExFreePool(current_entry);
}
else
{
previous_entry->Next = current_entry->Next;
ExReleaseFastMutex(&RmapListLock);
ExFreePool(current_entry);
}
ExReleaseFastMutex(&RmapListLock);
ExFreeToNPagedLookasideList(&RmapLookasideList, current_entry);
return;
}
previous_entry = current_entry;