In IRP_MJ_WRITE Callbacks FltReadFile content mistake.

In IRP_MJ_WRITE Pre-Operation Callbacks, I want to read this will write file, this will write file maybe locked.
How I to read this will write file,
I read file content is out-of-order and unpredictable.
is anybody help me ?

email:112426112@qq.com

this cases is not FASTIO OPERATION.

it maybe my wrong.
maybe dot not exist this problem.