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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
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GPG key ID: 7545556C3D585B0B
10 changed files with 156 additions and 170 deletions
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14
drivers/filesystems/ntfs/attrib.c
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@ -1083,9 +1083,7 @@ FreeClusters(PNTFS_VCB Vcb,
}
// Read the $Bitmap file
BitmapRecord = ExAllocatePoolWithTag(NonPagedPool,
Vcb->NtfsInfo.BytesPerFileRecord,
TAG_NTFS);
BitmapRecord = ExAllocateFromNPagedLookasideList(&Vcb->FileRecLookasideList);
if (BitmapRecord == NULL)
{
DPRINT1("Error: Unable to allocate memory for bitmap file record!\n");
@ -1096,7 +1094,7 @@ FreeClusters(PNTFS_VCB Vcb,
if (!NT_SUCCESS(Status))
{
DPRINT1("Error: Unable to read file record for bitmap!\n");
ExFreePoolWithTag(BitmapRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&Vcb->FileRecLookasideList, BitmapRecord);
return 0;
}
@ -1104,7 +1102,7 @@ FreeClusters(PNTFS_VCB Vcb,
if (!NT_SUCCESS(Status))
{
DPRINT1("Error: Unable to find data attribute for bitmap file!\n");
ExFreePoolWithTag(BitmapRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&Vcb->FileRecLookasideList, BitmapRecord);
return 0;
}
@ -1116,7 +1114,7 @@ FreeClusters(PNTFS_VCB Vcb,
{
DPRINT1("Error: Unable to allocate memory for bitmap file data!\n");
ReleaseAttributeContext(DataContext);
ExFreePoolWithTag(BitmapRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&Vcb->FileRecLookasideList, BitmapRecord);
return 0;
}
@ -1156,13 +1154,13 @@ FreeClusters(PNTFS_VCB Vcb,
{
ReleaseAttributeContext(DataContext);
ExFreePoolWithTag(BitmapData, TAG_NTFS);
ExFreePoolWithTag(BitmapRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&Vcb->FileRecLookasideList, BitmapRecord);
return Status;
}
ReleaseAttributeContext(DataContext);
ExFreePoolWithTag(BitmapData, TAG_NTFS);
ExFreePoolWithTag(BitmapRecord, TAG_NTFS);
ExFreeToNPagedLookasideList(&Vcb->FileRecLookasideList, BitmapRecord);
// Save updated data runs to file record