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100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: ntoskrnl/mm/shutdown.c
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* PURPOSE: Memory Manager Shutdown
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* PROGRAMMERS:
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*/
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/* INCLUDES ******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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#define MODULE_INVOLVED_IN_ARM3
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#include "ARM3/miarm.h"
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/* PRIVATE FUNCTIONS *********************************************************/
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VOID
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MiShutdownSystem(VOID)
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{
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ULONG i;
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PFN_NUMBER Page;
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BOOLEAN Dirty;
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/* Loop through all the paging files */
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for (i = 0; i < MmNumberOfPagingFiles; i++)
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{
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/* Free page file name */
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ASSERT(MmPagingFile[i]->PageFileName.Buffer != NULL);
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ExFreePoolWithTag(MmPagingFile[i]->PageFileName.Buffer, TAG_MM);
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MmPagingFile[i]->PageFileName.Buffer = NULL;
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/* And close them */
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ZwClose(MmPagingFile[i]->FileHandle);
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}
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/* Loop through all the pages owned by the legacy Mm and page them out, if needed. */
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/* We do it as long as there are dirty pages, since flushing can cause the FS to dirtify new ones. */
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do
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{
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Dirty = FALSE;
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Page = MmGetLRUFirstUserPage();
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while (Page)
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{
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LARGE_INTEGER SegmentOffset;
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PMM_SECTION_SEGMENT Segment = MmGetSectionAssociation(Page, &SegmentOffset);
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if (Segment)
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{
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if ((*Segment->Flags) & MM_DATAFILE_SEGMENT)
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{
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MmLockSectionSegment(Segment);
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ULONG_PTR Entry = MmGetPageEntrySectionSegment(Segment, &SegmentOffset);
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if (!IS_SWAP_FROM_SSE(Entry) && IS_DIRTY_SSE(Entry))
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{
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Dirty = TRUE;
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MmCheckDirtySegment(Segment, &SegmentOffset, FALSE, TRUE);
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}
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MmUnlockSectionSegment(Segment);
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}
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MmDereferenceSegment(Segment);
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}
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Page = MmGetLRUNextUserPage(Page, FALSE);
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}
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} while (Dirty);
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}
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VOID
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MmShutdownSystem(IN ULONG Phase)
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{
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if (Phase == 0)
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{
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MiShutdownSystem();
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}
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else if (Phase == 1)
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{
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ULONG i;
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/* Loop through all the paging files */
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for (i = 0; i < MmNumberOfPagingFiles; i++)
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{
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/* And dereference them */
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ObDereferenceObject(MmPagingFile[i]->FileObject);
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}
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}
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else
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{
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ASSERT(Phase == 2);
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UNIMPLEMENTED;
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}
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}
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