6226cf36590daa072ac01 parent d5dc28eb92f2a2305a02cb3a5f1ed36542d47512 author Nicholas Bellinger 1336334385 -0700 committer Nicholas Bellinger 1336601116 -0700 target: Enforce hw_max_sectors for SCF_SCSI_DATA_SG_IO_CDB Instead of depending upon a max_sectors value that may be set via configfs based upon original HW queue limitations, go ahead and convert to using the hw_max_sectors reported by the backend device in order to determine when to reject an I/O's who's sector count exceeds what is supported by the backend with a single se_cmd descriptor. It addresses a potential case where se_dev_attrib.max_sectors for IBLOCK backends has already been set via queue_max_sectors() to something small like max_sectors=32 (LVM, DRBD may do this), resulting typically sized SCF_SCSI_DATA_SG_IO_CDB to be incorrectly rejected with invalid_cdb_field in transport_generic_cmd_sequencer(). Reviewed-by: Christoph Hellwig Cc: Roland Dreier Cc: Andy Grover Signed-off-by: Nicholas Bellinger Ԑ x