tree e8864490fddd1d67c7911101a1446709ec21720e
parent 6e68af666f5336254b5715dca591026b7324499a
author Mike Christie <michaelc@cs.wisc.edu> 1131708697 -0600
committer James Bottomley <jejb@mulgrave.(none)> 1134615851 -0800

[SCSI] add retries field to request for REQ_BLOCK_PC use

For tape we need to control the retries. This patch adds a retries
counter on the request for REQ_BLOCK_PC commands originating from
scsi_execute* to use. REQ_BLOCK_PC commands comming from the block
layer SG_IO path continue to use the retires set in the ULD init_command.
(scsi_execute* does not set the gendisk so we do not execute
the init_command in that path).

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>