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- Check if a file object is on the close list and remove it from the list in CcRosRefernceCache.

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- Sort the cache segments for the bcb by offsets.

svn path=/trunk/; revision=4759
This commit is contained in:
Hartmut Birr 2003-05-25 21:49:04 +00:00
parent 939d5316af
commit 10acad2b71
1 changed files with 41 additions and 2 deletions
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43
reactos/ntoskrnl/cc/view.c
View file

@ -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: view.c,v 1.59 2003/05/17 15:27:34 ekohl Exp $
/* $Id: view.c,v 1.60 2003/05/25 21:49:04 hbirr Exp $
*
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/cc/view.c
@ -454,6 +454,7 @@ CcRosCreateCacheSegment(PBCB Bcb,
{
ULONG i;
PCACHE_SEGMENT current;
PCACHE_SEGMENT previous;
PLIST_ENTRY current_entry;
NTSTATUS Status;
KIRQL oldIrql;
@ -486,6 +487,7 @@ CcRosCreateCacheSegment(PBCB Bcb,
*/
KeAcquireSpinLock(&Bcb->BcbLock, &oldIrql);
current_entry = Bcb->BcbSegmentListHead.Flink;
previous = NULL;
while (current_entry != &Bcb->BcbSegmentListHead)
{
current = CONTAINING_RECORD(current_entry, CACHE_SEGMENT,
@ -505,11 +507,32 @@ CcRosCreateCacheSegment(PBCB Bcb,
}
return STATUS_SUCCESS;
}
if (current->FileOffset < FileOffset)
{
if (previous == NULL)
{
previous = current;
}
else
{
if (previous->FileOffset < current->FileOffset)
{
previous = current;
}
}
}
current_entry = current_entry->Flink;
}
/* There was no existing segment. */
current = *CacheSeg;
InsertTailList(&Bcb->BcbSegmentListHead, &current->BcbSegmentListEntry);
if (previous)
{
InsertHeadList(&previous->BcbSegmentListEntry, &current->BcbSegmentListEntry);
}
else
{
InsertHeadList(&Bcb->BcbSegmentListHead, &current->BcbSegmentListEntry);
}
KeReleaseSpinLock(&Bcb->BcbLock, oldIrql);
InsertTailList(&CacheSegmentListHead, &current->CacheSegmentListEntry);
InsertTailList(&CacheSegmentLRUListHead, &current->CacheSegmentLRUListEntry);
@ -665,6 +688,10 @@ CcRosGetCacheSegment(PBCB Bcb,
* Otherwise create a new segment.
*/
Status = CcRosCreateCacheSegment(Bcb, FileOffset, &current, TRUE);
if (!NT_SUCCESS(Status))
{
return Status;
}
}
/*
* Return information about the segment to the caller.
@ -946,6 +973,17 @@ VOID CcRosReferenceCache(PFILE_OBJECT FileObject)
ExAcquireFastMutex(&ViewLock);
Bcb = (PBCB)FileObject->SectionObjectPointers->SharedCacheMap;
assert(Bcb);
if (Bcb->RefCount == 0)
{
assert(Bcb->BcbRemoveListEntry.Flink != NULL);
RemoveEntryList(&Bcb->BcbRemoveListEntry);
Bcb->BcbRemoveListEntry.Flink = NULL;
}
else
{
assert(Bcb->BcbRemoveListEntry.Flink == NULL);
}
Bcb->RefCount++;
ExReleaseFastMutex(&ViewLock);
}
@ -1179,6 +1217,7 @@ CcInitView(VOID)
CI_CACHESEG_MAPPING_REGION_SIZE,
0,
&marea,
FALSE,
FALSE);
MmUnlockAddressSpace(MmGetKernelAddressSpace());
if (!NT_SUCCESS(Status))