Re: [Qemu-devel] [Nbd] [PATCH v2] doc: Allow NBD_CMD_FLAG_NO_HOLE during NBD_CMD_WRITE

2016-04-05 Thread Wouter Verhelst
On Tue, Apr 05, 2016 at 10:43:14AM -0600, Eric Blake wrote: > On 04/05/2016 03:38 AM, Markus Pargmann wrote: > > Hi, > > > > On Monday 04 April 2016 16:15:43 Eric Blake wrote: > >> qemu already has an existing server implementation option that will > >> explicitly search the payload of

Re: [Qemu-devel] [Nbd] [PATCH v2] doc: Allow NBD_CMD_FLAG_NO_HOLE during NBD_CMD_WRITE

2016-04-05 Thread Eric Blake
On 04/05/2016 03:38 AM, Markus Pargmann wrote: > Hi, > > On Monday 04 April 2016 16:15:43 Eric Blake wrote: >> qemu already has an existing server implementation option that will >> explicitly search the payload of NBD_CMD_WRITE for large blocks of >> zeroes, and punch holes in the underlying

Re: [Qemu-devel] [Nbd] [PATCH v2] doc: Allow NBD_CMD_FLAG_NO_HOLE during NBD_CMD_WRITE

2016-04-05 Thread Markus Pargmann
Hi, On Monday 04 April 2016 16:15:43 Eric Blake wrote: > qemu already has an existing server implementation option that will > explicitly search the payload of NBD_CMD_WRITE for large blocks of > zeroes, and punch holes in the underlying file. For old clients > that don't know how to use the new