> On Sat, Dec 11, 2010 at 12:50:20PM +, Paul Brook wrote:
> > > It's guest visible state, so it must not change due to migrations. For
> > > the current implementation all values for it work anyway - if it's
> > > smaller than the block size we'll zero out the remainder of the block.
> >
> >
On Sat, Dec 11, 2010 at 12:50:20PM +, Paul Brook wrote:
> > It's guest visible state, so it must not change due to migrations. For
> > the current implementation all values for it work anyway - if it's
> > smaller than the block size we'll zero out the remainder of the block.
>
> That sounds
> On Thu, Dec 02, 2010 at 01:12:13PM +0100, Kevin Wolf wrote:
> > > DEFINE_PROP_UINT16("physical_block_size", _state,
> > > \
> > >
> > > _conf.physical_block_size, 512),
> > > \
> > >
> > >
On Thu, Dec 02, 2010 at 01:12:13PM +0100, Kevin Wolf wrote:
> > DEFINE_PROP_UINT16("physical_block_size", _state, \
> > _conf.physical_block_size, 512), \
> > DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \
> >
Am 01.12.2010 16:35, schrieb Christoph Hellwig:
> Add a new bdrv_discard method to free blocks in a mapping image, and a new
> drive property to set the granularity for these discard. If no discard
> granularity support is set discard support is disabled.
>
> Signed-off-by: Christoph Hellwig
>
Add a new bdrv_discard method to free blocks in a mapping image, and a new
drive property to set the granularity for these discard. If no discard
granularity support is set discard support is disabled.
Signed-off-by: Christoph Hellwig
Index: qemu/block.c
On Thu, Nov 25, 2010 at 1:57 PM, Christoph Hellwig wrote:
> +int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors)
> +{
> + if (!bs->drv || !bs->drv->bdrv_discard)
> + return 0;
!bs->drv is normally -ENOMEDIUM. Perhaps we shouldn't lump it in with
!bs->drv->bdrv_di
On Thu, 25 Nov 2010, Christoph Hellwig wrote:
> Add a new bdrv_discard method to free blocks in a mapping image, and a new
> drive property to set the granularity for these discard. If no discard
> granularity support is set discard support is disabled.
>
> Signed-off-by: Christoph Hellwig
>
>
Add a new bdrv_discard method to free blocks in a mapping image, and a new
drive property to set the granularity for these discard. If no discard
granularity support is set discard support is disabled.
Signed-off-by: Christoph Hellwig
Index: qemu/block.c
