This series introduces blk_rq_accesses_medium(), which is equivalent to !blk_rq_is_passthrough() minus the zone request operations REQ_OP_ZONE_REPORT and REQ_OP_ZONE_RESET. This new helper allows avoiding problems due to the non-standard nature of these commands (report zones does no operate on logical block size units while reset zone operates on entire zones only). Using blk_rq_accesses_medium(), patch 2 excludes the zone commands from request accounting (these commands are not accessing the device medium). Exclusion from request scheduling is also added. Finally, patch 3 uses the blk_rq_accesses_medium() helper to fix improperly unaligned resid values only and only for medium access commands. This correctly excludes from the resid correction zone requests as well as passthrough requests. ALl 3 patches are originally from Bart. Bart Van Assche (3): block: Introduce blk_rq_accesses_medium() block: Separate zone requests from medium access requests mpt3sas: Do not check resid for non medium access commands block/blk-core.c | 2 +- block/blk.h | 2 +- block/elevator.c | 12 ++++++++---- block/mq-deadline.c | 2 +- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 ++-- include/linux/blk_types.h | 17 ++++++++++------- include/linux/blkdev.h | 18 +++++++++++++++--- 7 files changed, 38 insertions(+), 19 deletions(-) -- 2.9.3
