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- Lock the MainResource if we overwrite or supersede an existing file.

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- Use given allocation size, if we overwrite or supersede an existing file.

svn path=/trunk/; revision=19689
This commit is contained in:
Hartmut Birr 2005-11-27 15:44:36 +00:00
parent 420ab98250
commit 2229e54a12
1 changed files with 12 additions and 15 deletions
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17
reactos/drivers/fs/vfat/create.c
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@ -442,7 +442,6 @@ VfatCreateFile ( PDEVICE_OBJECT DeviceObject, PIRP Irp )
PVFATFCB ParentFcb;
PWCHAR c, last;
BOOLEAN PagingFileCreate = FALSE;
LARGE_INTEGER AllocationSize;
BOOLEAN Dots;
UNICODE_STRING FileNameU;
UNICODE_STRING PathNameU;
@ -586,7 +585,6 @@ VfatCreateFile ( PDEVICE_OBJECT DeviceObject, PIRP Irp )
}
Irp->IoStatus.Information = FILE_CREATED;
VfatSetAllocationSizeInformation(FileObject,
pFcb,
DeviceExt,
@ -691,13 +689,15 @@ VfatCreateFile ( PDEVICE_OBJECT DeviceObject, PIRP Irp )
if (RequestedDisposition == FILE_OVERWRITE ||
RequestedDisposition == FILE_OVERWRITE_IF)
RequestedDisposition == FILE_OVERWRITE_IF ||
RequestedDisposition == FILE_SUPERSEDE)
{
AllocationSize.QuadPart = 0;
ExAcquireResourceExclusiveLite(&(pFcb->MainResource), TRUE);
Status = VfatSetAllocationSizeInformation (FileObject,
pFcb,
DeviceExt,
&AllocationSize);
&Irp->Overlay.AllocationSize);
ExReleaseResourceLite(&(pFcb->MainResource));
if (!NT_SUCCESS (Status))
{
VfatCloseFile (DeviceExt, FileObject);
@ -705,15 +705,12 @@ VfatCreateFile ( PDEVICE_OBJECT DeviceObject, PIRP Irp )
}
}
/* Supersede the file */
if (RequestedDisposition == FILE_SUPERSEDE)
{
AllocationSize.QuadPart = 0;
VfatSetAllocationSizeInformation(FileObject, pFcb, DeviceExt, &AllocationSize);
Irp->IoStatus.Information = FILE_SUPERSEDED;
}
else if (RequestedDisposition == FILE_OVERWRITE || RequestedDisposition == FILE_OVERWRITE_IF)
else if (RequestedDisposition == FILE_OVERWRITE ||
RequestedDisposition == FILE_OVERWRITE_IF)
{
Irp->IoStatus.Information = FILE_OVERWRITTEN;
}