freelist.c File Reference

#include <ntoskrnl.h>
#include <debug.h>
#include "ARM3/miarm.h"

Include dependency graph for freelist.c:

Go to the source code of this file.

Macros
#define	NDEBUG
#define	MODULE_INVOLVED_IN_ARM3
#define	ASSERT_IS_ROS_PFN(x)   ASSERT(MI_IS_ROS_PFN(x) == TRUE);

Functions
PFN_NUMBER NTAPI	MmGetLRUFirstUserPage (VOID)
static VOID	MmInsertLRULastUserPage (PFN_NUMBER Page)
static VOID	MmRemoveLRUUserPage (PFN_NUMBER Page)
PFN_NUMBER NTAPI	MmGetLRUNextUserPage (PFN_NUMBER PreviousPage, BOOLEAN MoveToLast)
BOOLEAN NTAPI	MiIsPfnFree (IN PMMPFN Pfn1)
BOOLEAN NTAPI	MiIsPfnInUse (IN PMMPFN Pfn1)
PMDL NTAPI	MiAllocatePagesForMdl (IN PHYSICAL_ADDRESS LowAddress, IN PHYSICAL_ADDRESS HighAddress, IN PHYSICAL_ADDRESS SkipBytes, IN SIZE_T TotalBytes, IN MI_PFN_CACHE_ATTRIBUTE CacheAttribute, IN ULONG MdlFlags)
VOID NTAPI	MmSetRmapListHeadPage (PFN_NUMBER Pfn, PMM_RMAP_ENTRY ListHead)
PMM_RMAP_ENTRY NTAPI	MmGetRmapListHeadPage (PFN_NUMBER Pfn)
VOID NTAPI	MmSetSavedSwapEntryPage (PFN_NUMBER Pfn, SWAPENTRY SwapEntry)
SWAPENTRY NTAPI	MmGetSavedSwapEntryPage (PFN_NUMBER Pfn)
VOID NTAPI	MmReferencePage (PFN_NUMBER Pfn)
ULONG NTAPI	MmGetReferenceCountPage (PFN_NUMBER Pfn)
BOOLEAN NTAPI	MmIsPageInUse (PFN_NUMBER Pfn)
VOID NTAPI	MmDereferencePage (PFN_NUMBER Pfn)
PFN_NUMBER NTAPI	MmAllocPage (ULONG Type)

Variables
PMMPFN	MmPfnDatabase
PFN_NUMBER	MmAvailablePages
PFN_NUMBER	MmResidentAvailablePages
PFN_NUMBER	MmResidentAvailableAtInit
SIZE_T	MmTotalCommittedPages
SIZE_T	MmSharedCommit
SIZE_T	MmDriverCommit
SIZE_T	MmProcessCommit
SIZE_T	MmPagedPoolCommit
SIZE_T	MmPeakCommitment
SIZE_T	MmtotalCommitLimitMaximum
PMMPFN	FirstUserLRUPfn
PMMPFN	LastUserLRUPfn

Macro Definition Documentation

ASSERT_IS_ROS_PFN

#define ASSERT_IS_ROS_PFN

(

x

)

ASSERT(MI_IS_ROS_PFN(x) == TRUE);

Definition at line 20 of file freelist.c.

MODULE_INVOLVED_IN_ARM3

#define MODULE_INVOLVED_IN_ARM3

Definition at line 17 of file freelist.c.

NDEBUG

#define NDEBUG

Definition at line 14 of file freelist.c.

Function Documentation

MiAllocatePagesForMdl()

PMDL NTAPI MiAllocatePagesForMdl	(	IN PHYSICAL_ADDRESS	LowAddress,
		IN PHYSICAL_ADDRESS	HighAddress,
		IN PHYSICAL_ADDRESS	SkipBytes,
		IN SIZE_T	TotalBytes,
		IN MI_PFN_CACHE_ATTRIBUTE	CacheAttribute,
		IN ULONG	MdlFlags
	)

Definition at line 182 of file freelist.c.

{
    PMDL Mdl;
    PFN_NUMBER PageCount, LowPage, HighPage, SkipPages, PagesFound = 0, Page;
    PPFN_NUMBER MdlPage, LastMdlPage;
    KIRQL OldIrql;
    PMMPFN Pfn1;
    INT LookForZeroedPages;
 
    ASSERT(KeGetCurrentIrql() <= APC_LEVEL);
    DPRINT("ARM3-DEBUG: Being called with %I64x %I64x %I64x %lx %d %lu\n", LowAddress, HighAddress, SkipBytes, TotalBytes, CacheAttribute, MdlFlags);
 
    //
    // Convert the low address into a PFN
    //
    LowPage = (PFN_NUMBER)(LowAddress.QuadPart >> PAGE_SHIFT);
 
    //
    // Convert, and normalize, the high address into a PFN
    //
    HighPage = (PFN_NUMBER)(HighAddress.QuadPart >> PAGE_SHIFT);
    if (HighPage > MmHighestPhysicalPage) HighPage = MmHighestPhysicalPage;
 
    //
    // Validate skipbytes and convert them into pages
    //
    if (BYTE_OFFSET(SkipBytes.LowPart)) return NULL;
    SkipPages = (PFN_NUMBER)(SkipBytes.QuadPart >> PAGE_SHIFT);
 
    /* This isn't supported at all */
    if (SkipPages) DPRINT1("WARNING: Caller requesting SkipBytes, MDL might be mismatched\n");
 
    //
    // Now compute the number of pages the MDL will cover
    //
    PageCount = (PFN_NUMBER)ADDRESS_AND_SIZE_TO_SPAN_PAGES(0, TotalBytes);
    do
    {
        //
        // Try creating an MDL for these many pages
        //
        Mdl = MmCreateMdl(NULL, NULL, PageCount << PAGE_SHIFT);
        if (Mdl) break;
 
        //
        // This function is not required to return the amount of pages requested
        // In fact, it can return as little as 1 page, and callers are supposed
        // to deal with this scenario. So re-attempt the allocation with less
        // pages than before, and see if it worked this time.
        //
        PageCount -= (PageCount >> 4);
    } while (PageCount);
 
    //
    // Wow, not even a single page was around!
    //
    if (!Mdl) return NULL;
 
    //
    // This is where the page array starts....
    //
    MdlPage = (PPFN_NUMBER)(Mdl + 1);
 
    //
    // Lock the PFN database
    //
    OldIrql = MiAcquirePfnLock();
 
    //
    // Are we looking for any pages, without discriminating?
    //
    if ((LowPage == 0) && (HighPage == MmHighestPhysicalPage))
    {
        //
        // Well then, let's go shopping
        //
        while (PagesFound < PageCount)
        {
            /* Grab a page */
            MI_SET_USAGE(MI_USAGE_MDL);
            MI_SET_PROCESS2("Kernel");
 
            /* FIXME: This check should be smarter */
            Page = 0;
            if (MmAvailablePages != 0)
                Page = MiRemoveAnyPage(0);
 
            if (Page == 0)
            {
                /* This is not good... hopefully we have at least SOME pages */
                ASSERT(PagesFound);
                break;
            }
 
            /* Grab the page entry for it */
            Pfn1 = MiGetPfnEntry(Page);
 
            //
            // Make sure it's really free
            //
            ASSERT(Pfn1->u3.e2.ReferenceCount == 0);
 
            /* Now setup the page and mark it */
            Pfn1->u3.e2.ReferenceCount = 1;
            Pfn1->u2.ShareCount = 1;
            MI_SET_PFN_DELETED(Pfn1);
            Pfn1->u4.PteFrame = 0x1FFEDCB;
            Pfn1->u3.e1.StartOfAllocation = 1;
            Pfn1->u3.e1.EndOfAllocation = 1;
            Pfn1->u4.VerifierAllocation = 0;
 
            //
            // Save it into the MDL
            //
            *MdlPage++ = MiGetPfnEntryIndex(Pfn1);
            PagesFound++;
        }
    }
    else
    {
        //
        // You want specific range of pages. We'll do this in two runs
        //
        for (LookForZeroedPages = 1; LookForZeroedPages >= 0; LookForZeroedPages--)
        {
            //
            // Scan the range you specified
            //
            for (Page = LowPage; Page < HighPage; Page++)
            {
                //
                // Get the PFN entry for this page
                //
                Pfn1 = MiGetPfnEntry(Page);
                ASSERT(Pfn1);
 
                //
                // Make sure it's free and if this is our first pass, zeroed
                //
                if (MiIsPfnInUse(Pfn1)) continue;
                if ((Pfn1->u3.e1.PageLocation == ZeroedPageList) != LookForZeroedPages) continue;
 
                /* Remove the page from the free or zero list */
                ASSERT(Pfn1->u3.e1.ReadInProgress == 0);
                MI_SET_USAGE(MI_USAGE_MDL);
                MI_SET_PROCESS2("Kernel");
                MiUnlinkFreeOrZeroedPage(Pfn1);
 
                //
                // Sanity checks
                //
                ASSERT(Pfn1->u3.e2.ReferenceCount == 0);
 
                //
                // Now setup the page and mark it
                //
                Pfn1->u3.e2.ReferenceCount = 1;
                Pfn1->u2.ShareCount = 1;
                MI_SET_PFN_DELETED(Pfn1);
                Pfn1->u4.PteFrame = 0x1FFEDCB;
                Pfn1->u3.e1.StartOfAllocation = 1;
                Pfn1->u3.e1.EndOfAllocation = 1;
                Pfn1->u4.VerifierAllocation = 0;
 
                //
                // Save this page into the MDL
                //
                *MdlPage++ = Page;
                if (++PagesFound == PageCount) break;
            }
 
            //
            // If the first pass was enough, don't keep going, otherwise, go again
            //
            if (PagesFound == PageCount) break;
        }
    }
 
    //
    // Now release the PFN count
    //
    MiReleasePfnLock(OldIrql);
 
    //
    // We might've found less pages, but not more ;-)
    //
    if (PagesFound != PageCount) ASSERT(PagesFound < PageCount);
    if (!PagesFound)
    {
        //
        // If we didn' tfind any pages at all, fail
        //
        DPRINT1("NO MDL PAGES!\n");
        ExFreePoolWithTag(Mdl, TAG_MDL);
        return NULL;
    }
 
    //
    // Write out how many pages we found
    //
    Mdl->ByteCount = (ULONG)(PagesFound << PAGE_SHIFT);
 
    //
    // Terminate the MDL array if there's certain missing pages
    //
    if (PagesFound != PageCount) *MdlPage = LIST_HEAD;
 
    //
    // Now go back and loop over all the MDL pages
    //
    MdlPage = (PPFN_NUMBER)(Mdl + 1);
    LastMdlPage = MdlPage + PagesFound;
    while (MdlPage < LastMdlPage)
    {
        //
        // Check if we've reached the end
        //
        Page = *MdlPage++;
        if (Page == LIST_HEAD) break;
 
        //
        // Get the PFN entry for the page and check if we should zero it out
        //
        Pfn1 = MiGetPfnEntry(Page);
        ASSERT(Pfn1);
        if (Pfn1->u3.e1.PageLocation != ZeroedPageList) MiZeroPhysicalPage(Page);
        Pfn1->u3.e1.PageLocation = ActiveAndValid;
    }
 
    //
    // We're done, mark the pages as locked
    //
    Mdl->Process = NULL;
    Mdl->MdlFlags |= MDL_PAGES_LOCKED;
    return Mdl;
}

Referenced by MmAllocateNonCachedMemory(), MmAllocatePagesForMdl(), and MmAllocatePagesForMdlEx().

MiIsPfnFree()

BOOLEAN NTAPI MiIsPfnFree

(

IN PMMPFN

Pfn1

)

Definition at line 163 of file freelist.c.

{
    /* Must be a free or zero page, with no references, linked */
    return ((Pfn1->u3.e1.PageLocation <= StandbyPageList) &&
            (Pfn1->u1.Flink) &&
            (Pfn1->u2.Blink) &&
            !(Pfn1->u3.e2.ReferenceCount));
}

Referenced by MiIsPfnInUse().

MiIsPfnInUse()

BOOLEAN NTAPI MiIsPfnInUse

(

IN PMMPFN

Pfn1

)

Definition at line 174 of file freelist.c.

{
    /* Standby list or higher, unlinked, and with references */
    return !MiIsPfnFree(Pfn1);
}

Referenced by MiAllocatePagesForMdl(), MiFindContiguousPages(), MmGetRmapListHeadPage(), MmIsPageInUse(), and MmSetRmapListHeadPage().

MmAllocPage()

PFN_NUMBER NTAPI MmAllocPage

(

ULONG

Type

)

Definition at line 602 of file freelist.c.

{
    PFN_NUMBER PfnOffset;
    PMMPFN Pfn1;
    KIRQL OldIrql;
 
    OldIrql = MiAcquirePfnLock();
 
#if MI_TRACE_PFNS
    switch(Type)
    {
    case MC_SYSTEM:
        MI_SET_USAGE(MI_USAGE_CACHE);
        break;
    case MC_USER:
        MI_SET_USAGE(MI_USAGE_SECTION);
        break;
    default:
        ASSERT(FALSE);
    }
#endif
 
    PfnOffset = MiRemoveZeroPage(MI_GET_NEXT_COLOR());
    if (!PfnOffset)
    {
        MiReleasePfnLock(OldIrql);
        return 0;
    }
 
    DPRINT("Legacy allocate: %lx\n", PfnOffset);
    Pfn1 = MiGetPfnEntry(PfnOffset);
    Pfn1->u3.e2.ReferenceCount = 1;
    Pfn1->u3.e1.PageLocation = ActiveAndValid;
 
    /* This marks the PFN as a ReactOS PFN */
    Pfn1->u4.AweAllocation = TRUE;
 
    /* Allocate the extra ReactOS Data and zero it out */
    Pfn1->u1.SwapEntry = 0;
    Pfn1->RmapListHead = NULL;
 
    Pfn1->NextLRU = NULL;
    Pfn1->PreviousLRU = NULL;
 
    if (Type == MC_USER)
    {
        Pfn1->u4.MustBeCached = 1; /* HACK again */
        MmInsertLRULastUserPage(PfnOffset);
    }
 
    MiReleasePfnLock(OldIrql);
    return PfnOffset;
}

Referenced by MmRequestPageMemoryConsumer().

MmDereferencePage()

VOID NTAPI MmDereferencePage

(

PFN_NUMBER

Pfn

)

Definition at line 566 of file freelist.c.

{
    PMMPFN Pfn1;
    DPRINT("MmDereferencePage(PhysicalAddress %x)\n", Pfn << PAGE_SHIFT);
 
    MI_ASSERT_PFN_LOCK_HELD();
 
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
    ASSERT_IS_ROS_PFN(Pfn1);
 
    ASSERT(Pfn1->u3.e2.ReferenceCount != 0);
    Pfn1->u3.e2.ReferenceCount--;
    if (Pfn1->u3.e2.ReferenceCount == 0)
    {
        /* Apply LRU hack */
        if (Pfn1->u4.MustBeCached)
        {
            MmRemoveLRUUserPage(Pfn);
            Pfn1->u4.MustBeCached = 0;
        }
 
        /* Mark the page temporarily as valid, we're going to make it free soon */
        Pfn1->u3.e1.PageLocation = ActiveAndValid;
 
        /* It's not a ROS PFN anymore */
        Pfn1->u4.AweAllocation = FALSE;
 
        /* Bring it back into the free list */
        DPRINT("Legacy free: %lx\n", Pfn);
        MiInsertPageInFreeList(Pfn);
    }
}

Referenced by MiDecrementReferenceCount(), MmGetLRUNextUserPage(), MmReleasePageMemoryConsumer(), and MmTrimUserMemory().

MmGetLRUFirstUserPage()

PFN_NUMBER NTAPI MmGetLRUFirstUserPage

(

VOID

)

Definition at line 45 of file freelist.c.

{
    PFN_NUMBER Page;
    KIRQL OldIrql;
 
    /* Find the first user page */
    OldIrql = MiAcquirePfnLock();
 
    if (FirstUserLRUPfn == NULL)
    {
        MiReleasePfnLock(OldIrql);
        return 0;
    }
 
    Page = MiGetPfnEntryIndex(FirstUserLRUPfn);
    MmReferencePage(Page);
 
    MiReleasePfnLock(OldIrql);
 
    return Page;
}

Referenced by MiShutdownSystem(), and MmTrimUserMemory().

MmGetLRUNextUserPage()

PFN_NUMBER NTAPI MmGetLRUNextUserPage	(	PFN_NUMBER	PreviousPage,
		BOOLEAN	MoveToLast
	)

Definition at line 125 of file freelist.c.

{
    PFN_NUMBER Page = 0;
    KIRQL OldIrql;
 
    /* Find the next user page */
    OldIrql = MiAcquirePfnLock();
 
    PMMPFN PreviousPfn = MiGetPfnEntry(PreviousPage);
    PMMPFN NextPfn = PreviousPfn->NextLRU;
 
    /*
     * Move this one at the end of the list.
     * It may be freed by MmDereferencePage below.
     * If it's not, then it means it is still hanging in some process address space.
     * This avoids paging-out e.g. ntdll early just because it's mapped first time.
     */
    if ((MoveToLast) && (MmGetReferenceCountPage(PreviousPage) > 1))
    {
        MmRemoveLRUUserPage(PreviousPage);
        MmInsertLRULastUserPage(PreviousPage);
    }
 
    if (NextPfn)
    {
        Page = MiGetPfnEntryIndex(NextPfn);
        MmReferencePage(Page);
    }
 
    MmDereferencePage(PreviousPage);
 
    MiReleasePfnLock(OldIrql);
 
    return Page;
}

Referenced by MiShutdownSystem(), and MmTrimUserMemory().

MmGetReferenceCountPage()

ULONG NTAPI MmGetReferenceCountPage

(

PFN_NUMBER

Pfn

)

Definition at line 539 of file freelist.c.

{
    ULONG RCount;
    PMMPFN Pfn1;
 
    MI_ASSERT_PFN_LOCK_HELD();
 
    DPRINT("MmGetReferenceCountPage(PhysicalAddress %x)\n", Pfn << PAGE_SHIFT);
 
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
    ASSERT_IS_ROS_PFN(Pfn1);
 
    RCount = Pfn1->u3.e2.ReferenceCount;
 
    return(RCount);
}

Referenced by MmGetLRUNextUserPage(), and MmGetReferenceCountPageWithoutLock().

MmGetRmapListHeadPage()

PMM_RMAP_ENTRY NTAPI MmGetRmapListHeadPage

(

PFN_NUMBER

Pfn

)

Definition at line 459 of file freelist.c.

{
    PMMPFN Pfn1;
 
    /* PFN database must be locked */
    MI_ASSERT_PFN_LOCK_HELD();
 
    /* Get the entry */
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
 
    if (!MI_IS_ROS_PFN(Pfn1))
    {
        return NULL;
    }
 
    /* Should not have an RMAP for a non-active page */
    ASSERT(MiIsPfnInUse(Pfn1) == TRUE);
 
    /* Get the list head */
    return Pfn1->RmapListHead;
}

Referenced by MmDeleteRmap(), MmDeleteSectionAssociation(), MmGetSegmentRmap(), MmInsertRmap(), MmPageOutPhysicalAddress(), MmpPageOutPhysicalAddress(), and MmTrimUserMemory().

MmGetSavedSwapEntryPage()

SWAPENTRY NTAPI MmGetSavedSwapEntryPage

(

PFN_NUMBER

Pfn

)

Definition at line 500 of file freelist.c.

{
    SWAPENTRY SwapEntry;
    KIRQL oldIrql;
    PMMPFN Pfn1;
 
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
    ASSERT_IS_ROS_PFN(Pfn1);
 
    oldIrql = MiAcquirePfnLock();
    SwapEntry = Pfn1->u1.SwapEntry;
    MiReleasePfnLock(oldIrql);
 
    return(SwapEntry);
}

Referenced by if(), MiPurgeImageSegment(), MmFinalizeSectionPageOut(), MmFreeSectionPage(), MmPageOutPhysicalAddress(), MmpFreePageFileSegment(), and MmUnsharePageEntrySectionSegment().

MmInsertLRULastUserPage()

static VOID MmInsertLRULastUserPage ( PFN_NUMBER  Page )

static

Definition at line 69 of file freelist.c.

{
    MI_ASSERT_PFN_LOCK_HELD();
 
    PMMPFN Pfn = MiGetPfnEntry(Page);
 
    if (FirstUserLRUPfn == NULL)
        FirstUserLRUPfn = Pfn;
 
    Pfn->PreviousLRU = LastUserLRUPfn;
 
    if (LastUserLRUPfn != NULL)
        LastUserLRUPfn->NextLRU = Pfn;
    LastUserLRUPfn = Pfn;
}

Referenced by MmAllocPage(), and MmGetLRUNextUserPage().

MmIsPageInUse()

BOOLEAN NTAPI MmIsPageInUse

(

PFN_NUMBER

Pfn

)

Definition at line 559 of file freelist.c.

{
    return MiIsPfnInUse(MiGetPfnEntry(Pfn));
}

Referenced by MmCreateVirtualMapping().

MmReferencePage()

VOID NTAPI MmReferencePage

(

PFN_NUMBER

Pfn

)

Definition at line 519 of file freelist.c.

{
    PMMPFN Pfn1;
 
    DPRINT("MmReferencePage(PysicalAddress %x)\n", Pfn << PAGE_SHIFT);
 
    MI_ASSERT_PFN_LOCK_HELD();
    ASSERT(Pfn != 0);
    ASSERT(Pfn <= MmHighestPhysicalPage);
 
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
    ASSERT_IS_ROS_PFN(Pfn1);
 
    ASSERT(Pfn1->u3.e2.ReferenceCount != 0);
    Pfn1->u3.e2.ReferenceCount++;
}

Referenced by MmGetLRUFirstUserPage(), and MmGetLRUNextUserPage().

MmRemoveLRUUserPage()

static VOID MmRemoveLRUUserPage ( PFN_NUMBER  Page )

static

Definition at line 87 of file freelist.c.

{
    MI_ASSERT_PFN_LOCK_HELD();
 
    /* Unset the page as a user page */
    ASSERT(Page != 0);
 
    PMMPFN Pfn = MiGetPfnEntry(Page);
 
    ASSERT_IS_ROS_PFN(Pfn);
 
    if (Pfn->PreviousLRU)
    {
        ASSERT(Pfn->PreviousLRU->NextLRU == Pfn);
        Pfn->PreviousLRU->NextLRU = Pfn->NextLRU;
    }
    else
    {
        ASSERT(FirstUserLRUPfn == Pfn);
        FirstUserLRUPfn = Pfn->NextLRU;
    }
 
    if (Pfn->NextLRU)
    {
        ASSERT(Pfn->NextLRU->PreviousLRU == Pfn);
        Pfn->NextLRU->PreviousLRU = Pfn->PreviousLRU;
    }
    else
    {
        ASSERT(Pfn == LastUserLRUPfn);
        LastUserLRUPfn = Pfn->PreviousLRU;
    }
 
    Pfn->PreviousLRU = Pfn->NextLRU = NULL;
}

Referenced by MmDereferencePage(), and MmGetLRUNextUserPage().

MmSetRmapListHeadPage()

VOID NTAPI MmSetRmapListHeadPage	(	PFN_NUMBER	Pfn,
		PMM_RMAP_ENTRY	ListHead
	)

Definition at line 426 of file freelist.c.

{
    PMMPFN Pfn1;
 
    /* PFN database must be locked */
    MI_ASSERT_PFN_LOCK_HELD();
 
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
    ASSERT_IS_ROS_PFN(Pfn1);
 
    if (ListHead)
    {
        /* Should not be trying to insert an RMAP for a non-active page */
        ASSERT(MiIsPfnInUse(Pfn1) == TRUE);
 
        /* Set the list head address */
        Pfn1->RmapListHead = ListHead;
    }
    else
    {
        /* ReactOS semantics dictate the page is STILL active right now */
        ASSERT(MiIsPfnInUse(Pfn1) == TRUE);
 
        /* In this case, the RMAP is actually being removed, so clear field */
        Pfn1->RmapListHead = NULL;
 
        /* ReactOS semantics will now release the page, which will make it free and enter a colored list */
    }
}

MmSetSavedSwapEntryPage()

VOID NTAPI MmSetSavedSwapEntryPage	(	PFN_NUMBER	Pfn,
		SWAPENTRY	SwapEntry
	)

Definition at line 484 of file freelist.c.

{
    KIRQL oldIrql;
    PMMPFN Pfn1;
 
    Pfn1 = MiGetPfnEntry(Pfn);
    ASSERT(Pfn1);
    ASSERT_IS_ROS_PFN(Pfn1);
 
    oldIrql = MiAcquirePfnLock();
    Pfn1->u1.SwapEntry = SwapEntry;
    MiReleasePfnLock(oldIrql);
}

Referenced by MiSwapInPage(), MmFinalizeSectionPageOut(), MmFreeCacheSectionPage(), MmFreeSectionPage(), MmNotPresentFaultSectionView(), MmPageOutPhysicalAddress(), MmpFreePageFileSegment(), and MmUnsharePageEntrySectionSegment().

Variable Documentation

FirstUserLRUPfn

PMMPFN FirstUserLRUPfn

Definition at line 38 of file freelist.c.

Referenced by MmGetLRUFirstUserPage(), MmInsertLRULastUserPage(), and MmRemoveLRUUserPage().

LastUserLRUPfn

PMMPFN LastUserLRUPfn

Definition at line 39 of file freelist.c.

Referenced by MmInsertLRULastUserPage(), and MmRemoveLRUUserPage().

MmAvailablePages

PFN_NUMBER MmAvailablePages

Definition at line 26 of file freelist.c.

Referenced by _Requires_lock_held_(), CcCanIWrite(), CcWriteBehind(), MiAllocatePagesForMdl(), MiAllocatePoolPages(), MiBalancerThread(), MiDecrementAvailablePages(), MiIncrementAvailablePages(), MiInitMachineDependent(), MiNotifyMemoryEvents(), MiRemoveAnyPage(), MiRemoveZeroPage(), MiResolveTransitionFault(), MiSessionCommitPageTables(), MiTrimMemoryConsumer(), MmAdjustWorkingSetSize(), MmAllocateSpecialPool(), MmArmAccessFault(), MmArmInitSystem(), MmWorkingSetManager(), MmZeroPageThread(), and QSI_DEF().

MmDriverCommit

SIZE_T MmDriverCommit

Definition at line 32 of file freelist.c.

MmPagedPoolCommit

SIZE_T MmPagedPoolCommit

Definition at line 34 of file freelist.c.

MmPeakCommitment

SIZE_T MmPeakCommitment

Definition at line 35 of file freelist.c.

Referenced by QSI_DEF(), and UpdateTotalCommittedPages().

MmPfnDatabase

PMMPFN MmPfnDatabase

Definition at line 24 of file freelist.c.

Referenced by _Success_(), MI_PFN_ELEMENT(), MiAddDescriptorToDatabase(), MiBuildNonPagedPool(), MiBuildPfnDatabase(), MiDbgDumpAddressSpace(), MiGetPfnEntry(), MiGetPfnEntryIndex(), MiInitializeColorTables(), MiInitMachineDependent(), MiInitSystemMemoryAreas(), MiMapPfnDatabase(), and MmCreateVirtualMappingUnsafeEx().

MmProcessCommit

SIZE_T MmProcessCommit

Definition at line 33 of file freelist.c.

MmResidentAvailableAtInit

PFN_NUMBER MmResidentAvailableAtInit

Definition at line 28 of file freelist.c.

Referenced by MmArmInitSystem().

MmResidentAvailablePages

PFN_NUMBER MmResidentAvailablePages

Definition at line 27 of file freelist.c.

Referenced by _Requires_lock_held_(), MiInitializeSpecialPool(), MmAdjustWorkingSetSize(), and MmArmInitSystem().

MmSharedCommit

SIZE_T MmSharedCommit

Definition at line 31 of file freelist.c.

Referenced by MmCommitSessionMappedView().

MmtotalCommitLimitMaximum

SIZE_T MmtotalCommitLimitMaximum

Definition at line 36 of file freelist.c.

MmTotalCommittedPages

SIZE_T MmTotalCommittedPages

Definition at line 30 of file freelist.c.

Referenced by QSI_DEF(), and UpdateTotalCommittedPages().