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[FASTFAT]

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Fix a FIXME in fastfat:
- Implement support for device buffers flush in VfatFlushVolume().

Unlike Windows SDK, we don't divert the current IRP to pass it to storage device. Here, we allocate a new IRP and call the device so that it flushes buffers.

svn path=/trunk/; revision=65526
This commit is contained in:
Pierre Schweitzer 2014-11-29 20:15:44 +00:00
parent fa9b68d4bb
commit 8d5e230523
1 changed files with 31 additions and 1 deletions
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32
reactos/drivers/filesystems/fastfat/flush.c
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@ -52,6 +52,9 @@ VfatFlushVolume(
PLIST_ENTRY ListEntry;
PVFATFCB Fcb;
NTSTATUS Status, ReturnStatus = STATUS_SUCCESS;
PIRP Irp;
KEVENT Event;
IO_STATUS_BLOCK IoStatusBlock;
DPRINT("VfatFlushVolume(DeviceExt %p, FatFcb %p)\n", DeviceExt, VolumeFcb);
@ -99,7 +102,34 @@ VfatFlushVolume(
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite(&DeviceExt->FatResource);
/* FIXME: Flush the buffers from storage device */
/* Prepare an IRP to flush device buffers */
Irp = IoBuildSynchronousFsdRequest(IRP_MJ_FLUSH_BUFFERS,
DeviceExt->StorageDevice,
NULL, 0, NULL, &Event,
&IoStatusBlock);
if (Irp != NULL)
{
KeInitializeEvent(&Event, NotificationEvent, FALSE);
Status = IoCallDriver(DeviceExt->StorageDevice, Irp);
if (Status == STATUS_PENDING)
{
KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
Status = Irp->IoStatus.Status;
}
/* Ignore device not supporting flush operation */
if (Status == STATUS_INVALID_DEVICE_REQUEST)
{
DPRINT1("Flush not supported, ignored\n");
Status = STATUS_SUCCESS;
}
}
else
{
Status = STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(Status))
{