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If I write data into a file, an Irp will be created.
If it is write directly into file, the irp will go down directly to lower device stack until reach disk device.
But what if the data was written into file system buffer io? After writting into file system buffer, the status of that Irp is PENDING or COMPLETE?
When buffered file data was flush into disk, the data will go through file system again. Will a file system filter
driver get the Irp of these data?
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