Re: [Qemu-devel] [PATCH 5/5] vmdk: add bdrv_co_write_zeroes

2013-04-19 Thread Fam Zheng
On Fri, 04/19 11:12, Stefan Hajnoczi wrote: > On Fri, Apr 19, 2013 at 11:48:45AM +0800, Fam Zheng wrote: > > From: Feiran Zheng > > > > Use special offset to write zeroes efficiently, when zeroed-grain GTE is > > available. If zero-write an allocated cluster, cluster is leaked because > > its off

Re: [Qemu-devel] [PATCH 5/5] vmdk: add bdrv_co_write_zeroes

2013-04-19 Thread Stefan Hajnoczi
On Fri, Apr 19, 2013 at 11:48:45AM +0800, Fam Zheng wrote: > From: Feiran Zheng > > Use special offset to write zeroes efficiently, when zeroed-grain GTE is > available. If zero-write an allocated cluster, cluster is leaked because > its offset pointer is overwritten by "0x1". > > Signed-off-by:

[Qemu-devel] [PATCH 5/5] vmdk: add bdrv_co_write_zeroes

2013-04-18 Thread Fam Zheng
From: Feiran Zheng Use special offset to write zeroes efficiently, when zeroed-grain GTE is available. If zero-write an allocated cluster, cluster is leaked because its offset pointer is overwritten by "0x1". Signed-off-by: Fam Zheng --- block/vmdk.c | 63 ++