On Thu, 07 Jul 2005 23:19:57 -0500 Mike Christie <michaelc@xxxxxxxxxxx> wrote > > ... > > > > The bio handling for these REQ_BLOCK_PC requests shouldn't be > > treated any > > differently than the more typical REQ_CMD type block io request. > > what is meant by this last comment specifically? Just trying to make a case that a device pass through read command issued to a block device should transfer to user space only the user requested number of bytes minus the residual from the transfer (as is done for block device read and write requests) and not always transfer the number of bytes requested by the user.
