[Qemu-devel] [PATCH 0/1] Add support for iSCSI thin-provisioning

[Ronnie Sahlberg]

List,

Please find a patch that updates the iscsi block device to provide support for
1, LUNs bigger than 2TB by switching to READCAPACITY16
2, Thin-provisioning by implementing bdrv_aio_discard using SCSI UNMAP commands.


The unmapping/discard of blocks was done by booting a guest and using
sg_write_same --16 --unmap  from within the guest.
This was trapped in hw/scsi-disc.c and then appeared on the wire to the iscsi 
target as a proper SCSI UNMAP command.


regards
ronnie sahlberg