Microsoft Hyper-V virtual disks currently only claim SPC-2 compliance even though they implement post SPC-2 features (such as thin provisioning) which means the Linux kernel does not go on to test for those features even though they are advertised.
A previous patch attempted to add a quirk to workaround this but the quirk was only enabled after the features had been scanned for, wouldn't work for "small" disks and would quirk on all Hyper-V SCSI devices (e.g. passthrough disks). The new patches partially revert the previous effort, add the quirk in a more traditional manner to only Hyper-V virtual disks and work on small virtual disks. Sitsofe Wheeler (3): Revert "Drivers: add blist flags" scsi: add try_rc16 blacklist flag scsi: Use try_rc16 and try_vpd_pages quirks on Hyper-V virtual disks drivers/scsi/scsi_devinfo.c | 1 + drivers/scsi/scsi_scan.c | 3 +++ drivers/scsi/sd.c | 3 +++ drivers/scsi/storvsc_drv.c | 10 ---------- include/scsi/scsi_device.h | 1 + include/scsi/scsi_devinfo.h | 1 + 6 files changed, 9 insertions(+), 10 deletions(-) -- 1.9.3 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
