Bart, > Are there any SCSI devices that we care about that report an ATOMIC > TRANSFER LENGTH GRANULARITY that is larger than a single logical > block? Yes. Note that code path used inside a storage device to guarantee atomicity of an entire I/O may be substantially different from the code path which only offers an incremental guarantee at a single logical or physical block level (to the extent that those guarantees are offered at all but that's a different kettle of fish). > I'm wondering whether we really have to support such devices. Yes. -- Martin K. Petersen Oracle Linux Engineering
