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67 lines
2 KiB
C
67 lines
2 KiB
C
/*
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* ReactOS kernel
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* Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: wset.c,v 1.16 2002/09/08 10:23:37 chorns Exp $
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*
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/mm/wset.c
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* PURPOSE: Manages working sets
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* PROGRAMMER: David Welch (welch@cwcom.net)
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* UPDATE HISTORY:
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* Created 22/05/98
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*/
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/* INCLUDES *****************************************************************/
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#include <ddk/ntddk.h>
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#include <internal/mm.h>
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#include <internal/ps.h>
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#include <ntos/minmax.h>
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#define NDEBUG
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#include <internal/debug.h>
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/* FUNCTIONS *****************************************************************/
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NTSTATUS
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MmTrimUserMemory(ULONG Target, ULONG Priority, PULONG NrFreedPages)
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{
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PHYSICAL_ADDRESS CurrentPhysicalAddress;
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PHYSICAL_ADDRESS NextPhysicalAddress;
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NTSTATUS Status;
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(*NrFreedPages) = 0;
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CurrentPhysicalAddress = MmGetLRUFirstUserPage();
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while (CurrentPhysicalAddress.QuadPart != 0 && Target > 0)
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{
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NextPhysicalAddress = MmGetLRUNextUserPage(CurrentPhysicalAddress);
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Status = MmPageOutPhysicalAddress(CurrentPhysicalAddress);
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if (NT_SUCCESS(Status))
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{
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DPRINT("Succeeded\n");
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Target--;
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(*NrFreedPages)++;
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}
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CurrentPhysicalAddress = NextPhysicalAddress;
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}
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return(STATUS_SUCCESS);
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}
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