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SubjectQuestion about ll_rw_blk.c, add_request()
Just one short question to make sure I understand the code:
In add_request(), new requests for the hardware are put in a queue. I think
that there are not supposed to be several requests for the same sector in the
queue at the same time, e.g. one reading the sector and one writing it. I think
that the buffer and page caches try to avoid this situation. Is this correct?

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