Hi all, here's a small patch series as an attempt to fix up the READ CAPACITY issue on ALUA devices. The problem is that an ALUA device in state 'standby' or 'transitioning' might return the READ CAPACITY command with a sense code, causing the sd driver to report an error in sd_read_capacity. This patchset fixes up this situation so that these devices will be reported with a capacity of '0', but marked with a flag 'invalid_capacity'. So whenever we get a sense code indicating that the ALUA state has changed or if the 'rescan' attribute was triggered this flag will be reset if the capacity could be successfully read.
Hannes Reinecke (3): sd: Fixup capacity for ALUA standby or transitioning ports scsi: rescan device if an invalid capacity had been reported sd: do not try to spin-up disks for ALUA 'transitioning' state drivers/scsi/scsi_lib.c | 4 ++++ drivers/scsi/sd.c | 35 ++++++++++++++++++++++++++++++++++- include/scsi/scsi_device.h | 1 + 3 files changed, 39 insertions(+), 1 deletion(-) -- 1.8.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
