Re: [Qemu-devel] [PATCH v2] block: Turn on "unmap" in active commit

2016-09-27 Thread Fam Zheng
On Tue, 09/27 13:15, Kevin Wolf wrote: > Am 27.09.2016 um 13:04 hat Fam Zheng geschrieben: > > On Tue, 09/27 17:33, Fam Zheng wrote: > > > We already specified BDRV_O_UNMAP when opening images in 'qemu-img > > > commit', but didn't turn on the "unmap" in the active commit job. This > > > patch fixe

Re: [Qemu-devel] [PATCH v2] block: Turn on "unmap" in active commit

2016-09-27 Thread Kevin Wolf
Am 27.09.2016 um 13:04 hat Fam Zheng geschrieben: > On Tue, 09/27 17:33, Fam Zheng wrote: > > We already specified BDRV_O_UNMAP when opening images in 'qemu-img > > commit', but didn't turn on the "unmap" in the active commit job. This > > patch fixes that so that zeroed clusters in top image can b

Re: [Qemu-devel] [PATCH v2] block: Turn on "unmap" in active commit

2016-09-27 Thread Fam Zheng
On Tue, 09/27 17:33, Fam Zheng wrote: > We already specified BDRV_O_UNMAP when opening images in 'qemu-img > commit', but didn't turn on the "unmap" in the active commit job. This > patch fixes that so that zeroed clusters in top image can be discarded > which is desired in the virt-sparsify use ca

Re: [Qemu-devel] [PATCH v2] block: Turn on "unmap" in active commit

2016-09-27 Thread Fam Zheng
On Tue, 09/27 17:33, Fam Zheng wrote: > We already specified BDRV_O_UNMAP when opening images in 'qemu-img > commit', but didn't turn on the "unmap" in the active commit job. This > patch fixes that so that zeroed clusters in top image can be discarded > which is desired in the virt-sparsify use ca