https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3c3ebe33207a05c0b5b11f...
commit 3c3ebe33207a05c0b5b11ffd2d753c69690dc2fb Author: Pierre Schweitzer pierre@reactos.org AuthorDate: Fri May 18 14:03:20 2018 +0200 Commit: Pierre Schweitzer pierre@reactos.org CommitDate: Fri May 18 14:09:30 2018 +0200
[FASTFAT] Only initialize directory cache on use.
This avoids initializing cache directly on directory open/create. The advantage is we reduce the load on cache manager and on memory manager by avoiding creating everytime a stream file object, and initializing cache for it.
This will avoid initializing cache for started applications 'current directory' which is just opened for having a valid handle but no read/write is performed in it, by default.
This is a step forward for autochk.
CORE-14629 --- drivers/filesystems/fastfat/cleanup.c | 2 +- drivers/filesystems/fastfat/create.c | 2 +- drivers/filesystems/fastfat/dir.c | 1 + drivers/filesystems/fastfat/direntry.c | 31 ++++++++ drivers/filesystems/fastfat/dirwr.c | 138 +++++++++++++++++++++++++++++++-- drivers/filesystems/fastfat/fcb.c | 67 +--------------- drivers/filesystems/fastfat/finfo.c | 4 +- drivers/filesystems/fastfat/flush.c | 2 +- drivers/filesystems/fastfat/vfat.h | 14 +++- 9 files changed, 181 insertions(+), 80 deletions(-)
diff --git a/drivers/filesystems/fastfat/cleanup.c b/drivers/filesystems/fastfat/cleanup.c index 3ab4a101d1..f611a69def 100644 --- a/drivers/filesystems/fastfat/cleanup.c +++ b/drivers/filesystems/fastfat/cleanup.c @@ -88,7 +88,7 @@ VfatCleanupFile(
if (BooleanFlagOn(pFcb->Flags, FCB_IS_DIRTY)) { - VfatUpdateEntry (pFcb, vfatVolumeIsFatX(DeviceExt)); + VfatUpdateEntry (DeviceExt, pFcb); }
if (BooleanFlagOn(pFcb->Flags, FCB_DELETE_PENDING) && diff --git a/drivers/filesystems/fastfat/create.c b/drivers/filesystems/fastfat/create.c index d9efa96828..84751c2595 100644 --- a/drivers/filesystems/fastfat/create.c +++ b/drivers/filesystems/fastfat/create.c @@ -951,7 +951,7 @@ VfatCreateFile( &pFcb->entry.Fat.UpdateTime); }
- VfatUpdateEntry(pFcb, vfatVolumeIsFatX(DeviceExt)); + VfatUpdateEntry(DeviceExt, pFcb); }
ExAcquireResourceExclusiveLite(&(pFcb->MainResource), TRUE); diff --git a/drivers/filesystems/fastfat/dir.c b/drivers/filesystems/fastfat/dir.c index dd53080cda..18c6dcc2ca 100644 --- a/drivers/filesystems/fastfat/dir.c +++ b/drivers/filesystems/fastfat/dir.c @@ -599,6 +599,7 @@ DoQuery(
DPRINT("Buffer=%p tofind=%wZ\n", Buffer, &pCcb->SearchPattern);
+ DirContext.DeviceExt = IrpContext->DeviceExt; DirContext.LongNameU.Buffer = LongNameBuffer; DirContext.LongNameU.MaximumLength = sizeof(LongNameBuffer); DirContext.ShortNameU.Buffer = ShortNameBuffer; diff --git a/drivers/filesystems/fastfat/direntry.c b/drivers/filesystems/fastfat/direntry.c index f018282b6d..aa1e12f5a5 100644 --- a/drivers/filesystems/fastfat/direntry.c +++ b/drivers/filesystems/fastfat/direntry.c @@ -41,12 +41,14 @@ vfatDirEntryGetFirstCluster(
BOOLEAN FATIsDirectoryEmpty( + PDEVICE_EXTENSION DeviceExt, PVFATFCB Fcb) { LARGE_INTEGER FileOffset; PVOID Context = NULL; PFAT_DIR_ENTRY FatDirEntry; ULONG Index, MaxIndex; + NTSTATUS Status;
if (vfatFCBIsRoot(Fcb)) { @@ -60,6 +62,12 @@ FATIsDirectoryEmpty( FileOffset.QuadPart = 0; MaxIndex = Fcb->RFCB.FileSize.u.LowPart / sizeof(FAT_DIR_ENTRY);
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, Fcb); + if (!NT_SUCCESS(Status)) + { + return FALSE; + } + while (Index < MaxIndex) { if (Context == NULL || (Index % FAT_ENTRIES_PER_PAGE) == 0) @@ -109,16 +117,24 @@ FATIsDirectoryEmpty(
BOOLEAN FATXIsDirectoryEmpty( + PDEVICE_EXTENSION DeviceExt, PVFATFCB Fcb) { LARGE_INTEGER FileOffset; PVOID Context = NULL; PFATX_DIR_ENTRY FatXDirEntry; ULONG Index = 0, MaxIndex; + NTSTATUS Status;
FileOffset.QuadPart = 0; MaxIndex = Fcb->RFCB.FileSize.u.LowPart / sizeof(FATX_DIR_ENTRY);
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, Fcb); + if (!NT_SUCCESS(Status)) + { + return FALSE; + } + while (Index < MaxIndex) { if (Context == NULL || (Index % FATX_ENTRIES_PER_PAGE) == 0) @@ -186,12 +202,20 @@ FATGetNextDirEntry( BOOLEAN Valid = TRUE; BOOLEAN Back = FALSE;
+ NTSTATUS Status; + DirContext->LongNameU.Length = 0; DirContext->LongNameU.Buffer[0] = UNICODE_NULL;
FileOffset.u.HighPart = 0; FileOffset.u.LowPart = ROUND_DOWN(DirContext->DirIndex * sizeof(FAT_DIR_ENTRY), PAGE_SIZE);
+ Status = vfatFCBInitializeCacheFromVolume(DirContext->DeviceExt, pDirFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + if (*pContext == NULL || (DirContext->DirIndex % FAT_ENTRIES_PER_PAGE) == 0) { if (*pContext != NULL) @@ -461,6 +485,7 @@ FATXGetNextDirEntry( PFATX_DIR_ENTRY fatxDirEntry; OEM_STRING StringO; ULONG DirIndex = DirContext->DirIndex; + NTSTATUS Status;
FileOffset.u.HighPart = 0;
@@ -498,6 +523,12 @@ FATXGetNextDirEntry( } }
+ Status = vfatFCBInitializeCacheFromVolume(DirContext->DeviceExt, pDirFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + if (*pContext == NULL || (DirIndex % FATX_ENTRIES_PER_PAGE) == 0) { if (*pContext != NULL) diff --git a/drivers/filesystems/fastfat/dirwr.c b/drivers/filesystems/fastfat/dirwr.c index 68f1579102..e2026b8cd9 100644 --- a/drivers/filesystems/fastfat/dirwr.c +++ b/drivers/filesystems/fastfat/dirwr.c @@ -16,23 +16,105 @@ #define NDEBUG #include <debug.h>
+#ifdef KDBG +extern UNICODE_STRING DebugFile; +#endif + +NTSTATUS +vfatFCBInitializeCacheFromVolume( + PVCB vcb, + PVFATFCB fcb) +{ + PFILE_OBJECT fileObject; + PVFATCCB newCCB; + NTSTATUS status; + BOOLEAN Acquired; + + /* Don't re-initialize if already done */ + if (BooleanFlagOn(fcb->Flags, FCB_CACHE_INITIALIZED)) + { + return STATUS_SUCCESS; + } + + ASSERT(vfatFCBIsDirectory(fcb)); + + Acquired = FALSE; + if (!ExIsResourceAcquiredExclusive(&vcb->DirResource)) + { + ExAcquireResourceExclusiveLite(&vcb->DirResource, TRUE); + Acquired = TRUE; + } + + fileObject = IoCreateStreamFileObject (NULL, vcb->StorageDevice); + +#ifdef KDBG + if (DebugFile.Buffer != NULL && FsRtlIsNameInExpression(&DebugFile, &fcb->LongNameU, FALSE, NULL)) + { + DPRINT1("Attaching %p to %p (%d)\n", fcb, fileObject, fcb->RefCount); + } +#endif + + newCCB = ExAllocateFromNPagedLookasideList(&VfatGlobalData->CcbLookasideList); + if (newCCB == NULL) + { + ObDereferenceObject(fileObject); + return STATUS_INSUFFICIENT_RESOURCES; + } + RtlZeroMemory(newCCB, sizeof (VFATCCB)); + + fileObject->SectionObjectPointer = &fcb->SectionObjectPointers; + fileObject->FsContext = fcb; + fileObject->FsContext2 = newCCB; + fileObject->Vpb = vcb->IoVPB; + fcb->FileObject = fileObject; + + _SEH2_TRY + { + CcInitializeCacheMap(fileObject, + (PCC_FILE_SIZES)(&fcb->RFCB.AllocationSize), + TRUE, + &VfatGlobalData->CacheMgrCallbacks, + fcb); + } + _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) + { + status = _SEH2_GetExceptionCode(); + fcb->FileObject = NULL; + ExFreeToNPagedLookasideList(&VfatGlobalData->CcbLookasideList, newCCB); + ObDereferenceObject(fileObject); + return status; + } + _SEH2_END; + + vfatGrabFCB(vcb, fcb); + SetFlag(fcb->Flags, FCB_CACHE_INITIALIZED); + + if (Acquired) + { + ExReleaseResourceLite(&vcb->DirResource); + } + + return STATUS_SUCCESS; +} + /* * update an existing FAT entry */ NTSTATUS VfatUpdateEntry( - IN PVFATFCB pFcb, - IN BOOLEAN IsFatX) + IN PDEVICE_EXTENSION DeviceExt, + IN PVFATFCB pFcb) { PVOID Context; PDIR_ENTRY PinEntry; LARGE_INTEGER Offset; ULONG SizeDirEntry; ULONG dirIndex; + NTSTATUS Status;
ASSERT(pFcb);
- if (IsFatX) + if (vfatVolumeIsFatX(DeviceExt)) { SizeDirEntry = sizeof(FATX_DIR_ENTRY); dirIndex = pFcb->startIndex; @@ -52,6 +134,12 @@ VfatUpdateEntry(
ASSERT(pFcb->parentFcb);
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, pFcb->parentFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + Offset.u.HighPart = 0; Offset.u.LowPart = dirIndex * SizeDirEntry; _SEH2_TRY @@ -91,6 +179,12 @@ vfatRenameEntry(
DPRINT("vfatRenameEntry(%p, %p, %wZ, %d)\n", DeviceExt, pFcb, FileName, CaseChangeOnly);
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, pFcb->parentFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + if (vfatVolumeIsFatX(DeviceExt)) { VFAT_DIRENTRY_CONTEXT DirContext; @@ -120,6 +214,7 @@ vfatRenameEntry( pDirEntry->FilenameLength = (unsigned char)NameA.Length;
/* Update FCB */ + DirContext.DeviceExt = DeviceExt; DirContext.ShortNameU.Length = 0; DirContext.ShortNameU.MaximumLength = 0; DirContext.ShortNameU.Buffer = NULL; @@ -169,6 +264,12 @@ vfatFindDirSpace( else SizeDirEntry = sizeof(FAT_DIR_ENTRY);
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, pDirFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + count = pDirFcb->RFCB.FileSize.u.LowPart / SizeDirEntry; size = DeviceExt->FatInfo.BytesPerCluster / SizeDirEntry; for (i = 0; i < count; i++, pFatEntry = (PDIR_ENTRY)((ULONG_PTR)pFatEntry + SizeDirEntry)) @@ -343,6 +444,7 @@ FATAddEntry( NameA.Length = 0; NameA.MaximumLength = sizeof(aName);
+ DirContext.DeviceExt = DeviceExt; DirContext.ShortNameU.Buffer = ShortNameBuffer; DirContext.ShortNameU.Length = 0; DirContext.ShortNameU.MaximumLength = sizeof(ShortNameBuffer); @@ -359,6 +461,7 @@ FATAddEntry( needTilde = TRUE; needLong = TRUE; RtlZeroMemory(&NameContext, sizeof(GENERATE_NAME_CONTEXT)); + SearchContext.DeviceExt = DeviceExt; SearchContext.LongNameU.Buffer = LongNameBuffer; SearchContext.LongNameU.MaximumLength = sizeof(LongNameBuffer); SearchContext.ShortNameU.Buffer = ShortSearchName; @@ -577,6 +680,8 @@ FATAddEntry( DirContext.DirEntry.Fat.FirstCluster = (unsigned short)CurrentCluster; }
+ /* No need to init cache here, vfatFindDirSpace() will have done it for us */ + i = DeviceExt->FatInfo.BytesPerCluster / sizeof(FAT_DIR_ENTRY); FileOffset.u.HighPart = 0; FileOffset.u.LowPart = DirContext.StartIndex * sizeof(FAT_DIR_ENTRY); @@ -659,6 +764,12 @@ FATAddEntry(
if (IsDirectory) { + Status = vfatFCBInitializeCacheFromVolume(DeviceExt, (*Fcb)); + if (!NT_SUCCESS(Status)) + { + return Status; + } + FileOffset.QuadPart = 0; _SEH2_TRY { @@ -741,6 +852,7 @@ FATXAddEntry( DirContext.ShortNameU.Buffer = 0; DirContext.ShortNameU.Length = 0; DirContext.ShortNameU.MaximumLength = 0; + DirContext.DeviceExt = DeviceExt; RtlZeroMemory(&DirContext.DirEntry.FatX, sizeof(FATX_DIR_ENTRY)); memset(DirContext.DirEntry.FatX.Filename, 0xff, 42); /* Use cluster, if moving */ @@ -784,6 +896,8 @@ FATXAddEntry( DirContext.DirEntry.FatX.FileSize = MoveContext->FileSize; }
+ /* No need to init cache here, vfatFindDirSpace() will have done it for us */ + /* add entry into parent directory */ FileOffset.u.HighPart = 0; FileOffset.u.LowPart = Index * sizeof(FATX_DIR_ENTRY); @@ -829,10 +943,17 @@ FATDelEntry( PVOID Context = NULL; LARGE_INTEGER Offset; PFAT_DIR_ENTRY pDirEntry = NULL; + NTSTATUS Status;
ASSERT(pFcb); ASSERT(pFcb->parentFcb);
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, pFcb->parentFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + DPRINT("delEntry PathName '%wZ'\n", &pFcb->PathNameU); DPRINT("delete entry: %u to %u\n", pFcb->startIndex, pFcb->dirIndex); Offset.u.HighPart = 0; @@ -910,6 +1031,7 @@ FATXDelEntry( LARGE_INTEGER Offset; PFATX_DIR_ENTRY pDirEntry; ULONG StartIndex; + NTSTATUS Status;
ASSERT(pFcb); ASSERT(pFcb->parentFcb); @@ -917,6 +1039,12 @@ FATXDelEntry(
StartIndex = pFcb->startIndex;
+ Status = vfatFCBInitializeCacheFromVolume(DeviceExt, pFcb->parentFcb); + if (!NT_SUCCESS(Status)) + { + return Status; + } + DPRINT("delEntry PathName '%wZ'\n", &pFcb->PathNameU); DPRINT("delete entry: %u\n", StartIndex); Offset.u.HighPart = 0; @@ -1004,8 +1132,8 @@ VfatMoveEntry( return Status; }
-extern BOOLEAN FATXIsDirectoryEmpty(PVFATFCB Fcb); -extern BOOLEAN FATIsDirectoryEmpty(PVFATFCB Fcb); +extern BOOLEAN FATXIsDirectoryEmpty(PDEVICE_EXTENSION DeviceExt, PVFATFCB Fcb); +extern BOOLEAN FATIsDirectoryEmpty(PDEVICE_EXTENSION DeviceExt, PVFATFCB Fcb); extern NTSTATUS FATGetNextDirEntry(PVOID *pContext, PVOID *pPage, PVFATFCB pDirFcb, PVFAT_DIRENTRY_CONTEXT DirContext, BOOLEAN First); extern NTSTATUS FATXGetNextDirEntry(PVOID *pContext, PVOID *pPage, PVFATFCB pDirFcb, PVFAT_DIRENTRY_CONTEXT DirContext, BOOLEAN First);
diff --git a/drivers/filesystems/fastfat/fcb.c b/drivers/filesystems/fastfat/fcb.c index 35bb675795..89c8dc2ad2 100644 --- a/drivers/filesystems/fastfat/fcb.c +++ b/drivers/filesystems/fastfat/fcb.c @@ -640,62 +640,6 @@ vfatGrabFCBFromTable( return NULL; }
-static -NTSTATUS -vfatFCBInitializeCacheFromVolume( - PVCB vcb, - PVFATFCB fcb) -{ - PFILE_OBJECT fileObject; - PVFATCCB newCCB; - NTSTATUS status; - - fileObject = IoCreateStreamFileObject (NULL, vcb->StorageDevice); - -#ifdef KDBG - if (DebugFile.Buffer != NULL && FsRtlIsNameInExpression(&DebugFile, &fcb->LongNameU, FALSE, NULL)) - { - DPRINT1("Attaching %p to %p (%d)\n", fcb, fileObject, fcb->RefCount); - } -#endif - - newCCB = ExAllocateFromNPagedLookasideList(&VfatGlobalData->CcbLookasideList); - if (newCCB == NULL) - { - ObDereferenceObject(fileObject); - return STATUS_INSUFFICIENT_RESOURCES; - } - RtlZeroMemory(newCCB, sizeof (VFATCCB)); - - fileObject->SectionObjectPointer = &fcb->SectionObjectPointers; - fileObject->FsContext = fcb; - fileObject->FsContext2 = newCCB; - fileObject->Vpb = vcb->IoVPB; - fcb->FileObject = fileObject; - - _SEH2_TRY - { - CcInitializeCacheMap(fileObject, - (PCC_FILE_SIZES)(&fcb->RFCB.AllocationSize), - TRUE, - &VfatGlobalData->CacheMgrCallbacks, - fcb); - } - _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) - { - status = _SEH2_GetExceptionCode(); - fcb->FileObject = NULL; - ExFreeToNPagedLookasideList(&VfatGlobalData->CcbLookasideList, newCCB); - ObDereferenceObject(fileObject); - return status; - } - _SEH2_END; - - vfatGrabFCB(vcb, fcb); - SetFlag(fcb->Flags, FCB_CACHE_INITIALIZED); - return STATUS_SUCCESS; -} - PVFATFCB vfatMakeRootFCB( PDEVICE_EXTENSION pVCB) @@ -788,16 +732,6 @@ vfatMakeFCBFromDirEntry( vfatInitFCBFromDirEntry(vcb, rcFCB, DirContext);
rcFCB->RefCount = 1; - if (vfatFCBIsDirectory(rcFCB)) - { - Status = vfatFCBInitializeCacheFromVolume(vcb, rcFCB); - if (!NT_SUCCESS(Status)) - { - vfatReleaseFCB(vcb, rcFCB); - ExFreePoolWithTag(NameU.Buffer, TAG_FCB); - return Status; - } - } rcFCB->parentFcb = directoryFCB; InsertTailList(&directoryFCB->ParentListHead, &rcFCB->ParentListEntry); vfatAddFCBToTable(vcb, rcFCB); @@ -880,6 +814,7 @@ vfatDirFindFile( DirContext.ShortNameU.Buffer = ShortNameBuffer; DirContext.ShortNameU.Length = 0; DirContext.ShortNameU.MaximumLength = sizeof(ShortNameBuffer); + DirContext.DeviceExt = pDeviceExt;
while (TRUE) { diff --git a/drivers/filesystems/fastfat/finfo.c b/drivers/filesystems/fastfat/finfo.c index 97067b929f..d860cd641b 100644 --- a/drivers/filesystems/fastfat/finfo.c +++ b/drivers/filesystems/fastfat/finfo.c @@ -265,7 +265,7 @@ VfatSetBasicInformation( } }
- VfatUpdateEntry(FCB, vfatVolumeIsFatX(DeviceExt)); + VfatUpdateEntry(DeviceExt, FCB);
if (NotifyFilter != 0) { @@ -1407,7 +1407,7 @@ VfatSetAllocationSizeInformation( Fcb->Flags |= FCB_IS_DIRTY; if (AllocSizeChanged) { - VfatUpdateEntry(Fcb, vfatVolumeIsFatX(DeviceExt)); + VfatUpdateEntry(DeviceExt, Fcb);
vfatReportChange(DeviceExt, Fcb, FILE_NOTIFY_CHANGE_SIZE, FILE_ACTION_MODIFIED); } diff --git a/drivers/filesystems/fastfat/flush.c b/drivers/filesystems/fastfat/flush.c index 0629491416..ebf1925172 100644 --- a/drivers/filesystems/fastfat/flush.c +++ b/drivers/filesystems/fastfat/flush.c @@ -35,7 +35,7 @@ VfatFlushFile(
if (BooleanFlagOn(Fcb->Flags, FCB_IS_DIRTY)) { - Status = VfatUpdateEntry(Fcb, vfatVolumeIsFatX(DeviceExt)); + Status = VfatUpdateEntry(DeviceExt, Fcb); if (!NT_SUCCESS(Status)) { IoStatus.Status = Status; diff --git a/drivers/filesystems/fastfat/vfat.h b/drivers/filesystems/fastfat/vfat.h index e58b61bb57..1f2939577c 100644 --- a/drivers/filesystems/fastfat/vfat.h +++ b/drivers/filesystems/fastfat/vfat.h @@ -281,7 +281,7 @@ typedef NTSTATUS (*PGET_NEXT_CLUSTER)(PDEVICE_EXTENSION,ULONG,PULONG); typedef NTSTATUS (*PFIND_AND_MARK_AVAILABLE_CLUSTER)(PDEVICE_EXTENSION,PULONG); typedef NTSTATUS (*PWRITE_CLUSTER)(PDEVICE_EXTENSION,ULONG,ULONG,PULONG);
-typedef BOOLEAN (*PIS_DIRECTORY_EMPTY)(struct _VFATFCB*); +typedef BOOLEAN (*PIS_DIRECTORY_EMPTY)(PDEVICE_EXTENSION,struct _VFATFCB*); typedef NTSTATUS (*PADD_ENTRY)(PDEVICE_EXTENSION,PUNICODE_STRING,struct _VFATFCB**,struct _VFATFCB*,ULONG,UCHAR,struct _VFAT_MOVE_CONTEXT*); typedef NTSTATUS (*PDEL_ENTRY)(PDEVICE_EXTENSION,struct _VFATFCB*,struct _VFAT_MOVE_CONTEXT*); typedef NTSTATUS (*PGET_NEXT_DIR_ENTRY)(PVOID*,PVOID*,struct _VFATFCB*,struct _VFAT_DIRENTRY_CONTEXT*,BOOLEAN); @@ -352,7 +352,7 @@ BOOLEAN VfatIsDirectoryEmpty(PDEVICE_EXTENSION DeviceExt, struct _VFATFCB* Fcb) { - return DeviceExt->Dispatch.IsDirectoryEmpty(Fcb); + return DeviceExt->Dispatch.IsDirectoryEmpty(DeviceExt, Fcb); }
FORCEINLINE @@ -570,6 +570,7 @@ typedef struct _VFAT_DIRENTRY_CONTEXT DIR_ENTRY DirEntry; UNICODE_STRING LongNameU; UNICODE_STRING ShortNameU; + PDEVICE_EXTENSION DeviceExt; } VFAT_DIRENTRY_CONTEXT, *PVFAT_DIRENTRY_CONTEXT;
typedef struct _VFAT_MOVE_CONTEXT @@ -736,10 +737,15 @@ vfatDirEntryGetFirstCluster(
/* dirwr.c */
+NTSTATUS +vfatFCBInitializeCacheFromVolume( + PVCB vcb, + PVFATFCB fcb); + NTSTATUS VfatUpdateEntry( - PVFATFCB pFcb, - IN BOOLEAN IsFatX); + IN PDEVICE_EXTENSION DeviceExt, + PVFATFCB pFcb);
BOOLEAN vfatFindDirSpace(
-
Pierre Schweitzer