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[NTFS] Use LookasideList allocations for FILE_RECORD_HEADER.

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TODO: use a specific tag

This, and previous commit, should speed up a bit the driver until caching gets implemented
This commit is contained in:
Pierre Schweitzer 2017-12-31 14:14:24 +01:00
parent 3ddf44ff10
commit 216a2cae73
No known key found for this signature in database
GPG key ID: 7545556C3D585B0B
10 changed files with 156 additions and 170 deletions
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38
drivers/filesystems/ntfs/create.c
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@ -114,9 +114,7 @@ NtfsMoonWalkID(PDEVICE_EXTENSION DeviceExt,
DPRINT1("NtfsMoonWalkID(%p, %I64x, %p)\n", DeviceExt, Id, OutPath);
RtlZeroMemory(FullPath, sizeof(FullPath));
MftRecord = ExAllocatePoolWithTag(NonPagedPool,
DeviceExt->NtfsInfo.BytesPerFileRecord,
TAG_NTFS);
MftRecord = ExAllocateFromNPagedLookasideList(&DeviceExt->FileRecLookasideList);
if (MftRecord == NULL)
{
return STATUS_INSUFFICIENT_RESOURCES;
@ -155,7 +153,7 @@ NtfsMoonWalkID(PDEVICE_EXTENSION DeviceExt,
break;
}
ExFreePoolWithTag(MftRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, MftRecord);
if (!NT_SUCCESS(Status))
return Status;
@ -191,9 +189,7 @@ NtfsOpenFileById(PDEVICE_EXTENSION DeviceExt,
return STATUS_OBJECT_NAME_NOT_FOUND;
}
MftRecord = ExAllocatePoolWithTag(NonPagedPool,
DeviceExt->NtfsInfo.BytesPerFileRecord,
TAG_NTFS);
MftRecord = ExAllocateFromNPagedLookasideList(&DeviceExt->FileRecLookasideList);
if (MftRecord == NULL)
{
return STATUS_INSUFFICIENT_RESOURCES;
@ -202,13 +198,13 @@ NtfsOpenFileById(PDEVICE_EXTENSION DeviceExt,
Status = ReadFileRecord(DeviceExt, MftId, MftRecord);
if (!NT_SUCCESS(Status))
{
ExFreePoolWithTag(MftRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, MftRecord);
return Status;
}
if (!(MftRecord->Flags & FRH_IN_USE))
{
ExFreePoolWithTag(MftRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, MftRecord);
return STATUS_OBJECT_PATH_NOT_FOUND;
}
@ -221,14 +217,14 @@ NtfsOpenFileById(PDEVICE_EXTENSION DeviceExt,
Status = NtfsMakeFCBFromDirEntry(DeviceExt, NULL, &Name, NULL, MftRecord, MftId, &FCB);
if (!NT_SUCCESS(Status))
{
ExFreePoolWithTag(MftRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, MftRecord);
return Status;
}
}
ASSERT(FCB != NULL);
ExFreePoolWithTag(MftRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, MftRecord);
Status = NtfsAttachFCBToFileObject(DeviceExt,
FCB,
@ -506,9 +502,7 @@ NtfsCreateFile(PDEVICE_OBJECT DeviceObject,
ExAcquireResourceExclusiveLite(&(Fcb->MainResource), TRUE);
fileRecord = ExAllocatePoolWithTag(NonPagedPool,
Fcb->Vcb->NtfsInfo.BytesPerFileRecord,
TAG_NTFS);
fileRecord = ExAllocateFromNPagedLookasideList(&Fcb->Vcb->FileRecLookasideList);
if (fileRecord)
{
@ -532,7 +526,7 @@ NtfsCreateFile(PDEVICE_OBJECT DeviceObject,
DoneOverwriting:
if (fileRecord)
ExFreePoolWithTag(fileRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&Fcb->Vcb->FileRecLookasideList, fileRecord);
if (dataContext)
ReleaseAttributeContext(dataContext);
@ -741,7 +735,7 @@ NtfsCreateDirectory(PDEVICE_EXTENSION DeviceExt,
if (!NT_SUCCESS(Status))
{
DPRINT1("ERROR: Failed to create empty B-Tree!\n");
ExFreePoolWithTag(FileRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, FileRecord);
return Status;
}
@ -760,7 +754,7 @@ NtfsCreateDirectory(PDEVICE_EXTENSION DeviceExt,
{
DPRINT1("ERROR: Unable to create empty index root!\n");
DestroyBTree(Tree);
ExFreePoolWithTag(FileRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, FileRecord);
return Status;
}
@ -773,7 +767,7 @@ NtfsCreateDirectory(PDEVICE_EXTENSION DeviceExt,
{
DPRINT1("ERROR: Failed to add index root to new file record!\n");
ExFreePoolWithTag(NewIndexRoot, TAG_NTFS);
ExFreePoolWithTag(FileRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, FileRecord);
return Status;
}
@ -803,7 +797,7 @@ NtfsCreateDirectory(PDEVICE_EXTENSION DeviceExt,
}
ExFreePoolWithTag(NewIndexRoot, TAG_NTFS);
ExFreePoolWithTag(FileRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, FileRecord);
return Status;
}
@ -829,9 +823,7 @@ NtfsCreateEmptyFileRecord(PDEVICE_EXTENSION DeviceExt)
DPRINT1("NtfsCreateEmptyFileRecord(%p)\n", DeviceExt);
// allocate memory for file record
FileRecord = ExAllocatePoolWithTag(NonPagedPool,
DeviceExt->NtfsInfo.BytesPerFileRecord,
TAG_NTFS);
FileRecord = ExAllocateFromNPagedLookasideList(&DeviceExt->FileRecLookasideList);
if (!FileRecord)
{
DPRINT1("ERROR: Unable to allocate memory for file record!\n");
@ -963,7 +955,7 @@ NtfsCreateFileRecord(PDEVICE_EXTENSION DeviceExt,
CaseSensitive);
}
ExFreePoolWithTag(FileRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&DeviceExt->FileRecLookasideList, FileRecord);
return Status;
}