On 14/05/2015 13:02, Dimitris Aragiorgis wrote: > Also note that QEMU seems to flush the disk cache explicitly in > case of iSCSI, using iscsi_synchronizecache10_task() from libiscsi > inside iscsi_co_flush().
Right, QEMU does that if type is DISK only. > Perhaps we can also extend this approach to scsi-generic e.g. by > calling sg_ll_sync_cache_10() from libsgutils2. This is a distinct, > orthogonal patch that could be added in the future. Yes. But do not use libsgutils2, just do it manually in QEMU. See for example get_stream_blocksize in hw/scsi/scsi-generic.c. Paolo
