Re: [Qemu-devel] [PATCH v4 21/23] block: Align block status requests

2017-10-02 Thread Eric Blake
On 10/02/2017 03:24 PM, John Snow wrote: > > > On 09/13/2017 12:03 PM, Eric Blake wrote: >> Any device that has request_alignment greater than 512 should be >> unable to report status at a finer granularity; it may also be >> simpler for such devices to be guaranteed that the block layer >> has r

Re: [Qemu-devel] [PATCH v4 21/23] block: Align block status requests

2017-09-13 Thread Eric Blake
On 09/13/2017 02:26 PM, Eric Blake wrote: > On 09/13/2017 11:03 AM, Eric Blake wrote: >> Any device that has request_alignment greater than 512 should be >> unable to report status at a finer granularity; it may also be >> simpler for such devices to be guaranteed that the block layer >> has rounde

Re: [Qemu-devel] [PATCH v4 21/23] block: Align block status requests

2017-09-13 Thread Eric Blake
On 09/13/2017 11:03 AM, Eric Blake wrote: > Any device that has request_alignment greater than 512 should be > unable to report status at a finer granularity; it may also be > simpler for such devices to be guaranteed that the block layer > has rounded things out to the granularity boundary (the wa

[Qemu-devel] [PATCH v4 21/23] block: Align block status requests

2017-09-13 Thread Eric Blake
Any device that has request_alignment greater than 512 should be unable to report status at a finer granularity; it may also be simpler for such devices to be guaranteed that the block layer has rounded things out to the granularity boundary (the way the block layer already rounds all other I/O out