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Used lookasidelists for ibcb's.

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Enabled caching of directories and fat segments.

svn path=/trunk/; revision=3969
This commit is contained in:
Hartmut Birr 2003-01-11 15:22:31 +00:00
parent a0e6246535
commit 7a00c6be46
1 changed files with 6 additions and 14 deletions
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20
reactos/ntoskrnl/cc/pin.c
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@ -1,4 +1,4 @@
/* $Id: pin.c,v 1.9 2002/12/15 17:01:52 chorns Exp $
/* $Id: pin.c,v 1.10 2003/01/11 15:22:31 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -26,14 +26,9 @@
#define ROUND_DOWN(N, S) ((N) - ((N) % (S)))
/* FUNCTIONS *****************************************************************/
extern NPAGED_LOOKASIDE_LIST iBcbLookasideList;
typedef struct _INTERNAL_BCB
{
PUBLIC_BCB PFCB;
PCACHE_SEGMENT CacheSegment;
BOOLEAN Dirty;
} INTERNAL_BCB, *PINTERNAL_BCB;
/* FUNCTIONS *****************************************************************/
BOOLEAN STDCALL
CcMapData (IN PFILE_OBJECT FileObject,
@ -91,12 +86,13 @@ CcMapData (IN PFILE_OBJECT FileObject,
}
}
*pBuffer += ReadOffset % Bcb->CacheSegmentSize;
iBcb = ExAllocatePool (NonPagedPool, sizeof(INTERNAL_BCB));
iBcb = ExAllocateFromNPagedLookasideList(&iBcbLookasideList);
if (iBcb == NULL)
{
CcRosReleaseCacheSegment(Bcb, CacheSeg, TRUE, FALSE, FALSE);
return FALSE;
}
memset(iBcb, 0, sizeof(INTERNAL_BCB));
iBcb->CacheSegment = CacheSeg;
iBcb->Dirty = FALSE;
iBcb->PFCB.MappedLength = Length;
@ -111,7 +107,7 @@ CcUnpinData (IN PVOID Bcb)
PINTERNAL_BCB iBcb = Bcb;
CcRosReleaseCacheSegment(iBcb->CacheSegment->Bcb, iBcb->CacheSegment, TRUE,
iBcb->Dirty, FALSE);
ExFreePool(iBcb);
ExFreeToNPagedLookasideList(&iBcbLookasideList, iBcb);
}
VOID STDCALL
@ -119,10 +115,6 @@ CcSetDirtyPinnedData (IN PVOID Bcb,
IN PLARGE_INTEGER Lsn)
{
PINTERNAL_BCB iBcb = Bcb;
#if 0
iBcb->Dirty = TRUE;
#else
WriteCacheSegment(iBcb->CacheSegment);
#endif
}