Re: [Qemu-devel] [Qemu-stable] [PATCH 2/2] block: Pass unaligned discard requests to drivers

2016-11-11 Thread Eric Blake
On 11/11/2016 04:58 AM, Peter Lieven wrote: > Am 11.11.2016 um 00:10 schrieb Eric Blake: >> Discard is advisory, so rounding the requests to alignment >> boundaries is never semantically wrong from the data that >> the guest sees. But at least the Dell Equallogic iSCSI SANs >> has an interesting

Re: [Qemu-devel] [Qemu-stable] [PATCH 2/2] block: Pass unaligned discard requests to drivers

2016-11-11 Thread Peter Lieven
Am 11.11.2016 um 00:10 schrieb Eric Blake: > Discard is advisory, so rounding the requests to alignment > boundaries is never semantically wrong from the data that > the guest sees. But at least the Dell Equallogic iSCSI SANs > has an interesting property that its advertised discard > alignment