Re: [Qemu-devel] [Qemu-block] do not lseek in qcow2 block_status

2018-12-28 Thread Paolo Bonzini
On 25/12/18 10:45, Vladimir Sementsov-Ogievskiy wrote: >> >> What are the cases, when we really need digging for zeros in bs->file? It's needed for preallocation=metadata. Paolo

Re: [Qemu-devel] [Qemu-block] do not lseek in qcow2 block_status

2018-12-25 Thread Vladimir Sementsov-Ogievskiy
24.12.2018 23:42, Nir Soffer wrote: > On Mon, Dec 24, 2018 at 5:50 PM Vladimir Sementsov-Ogievskiy > mailto:vsement...@virtuozzo.com>> wrote: > > Hi all! > > bdrv_co_block_status digs bs->file for additional, more accurate search > for hole > inside region, reported as DATA by bs

Re: [Qemu-devel] [Qemu-block] do not lseek in qcow2 block_status

2018-12-24 Thread Nir Soffer
On Mon, Dec 24, 2018 at 5:50 PM Vladimir Sementsov-Ogievskiy < vsement...@virtuozzo.com> wrote: > Hi all! > > bdrv_co_block_status digs bs->file for additional, more accurate search > for hole > inside region, reported as DATA by bs since long-ago > >commit