Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Peter Lieven
Am 15.05.2017 um 15:02 schrieb Kevin Wolf: Am 15.05.2017 um 14:52 hat Fam Zheng geschrieben: On Mon, 05/15 14:32, Peter Lieven wrote: Am 15.05.2017 um 14:28 schrieb Fam Zheng: On Mon, 05/15 13:58, Peter Lieven wrote: Am 15.05.2017 um 13:53 schrieb Fam Zheng: On Mon, 05/15 13:26, Peter Lieven

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Fam Zheng
On Mon, 05/15 16:02, Peter Lieven wrote: > > > do you have a pointer to the image locking mechanism? > > It hit qemu.git master just a moment ago. See raw_check_perm. > > which master are you looking at? > > $ git fetch upstream > $ git log upstream/master --oneline > 3a87606 Merge tag 'tracing-p

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Peter Lieven
Am 15.05.2017 um 15:35 schrieb Fam Zheng: On Mon, 05/15 15:01, Peter Lieven wrote: Am 15.05.2017 um 14:52 schrieb Fam Zheng: On Mon, 05/15 14:32, Peter Lieven wrote: Am 15.05.2017 um 14:28 schrieb Fam Zheng: On Mon, 05/15 13:58, Peter Lieven wrote: Am 15.05.2017 um 13:53 schrieb Fam Zheng:

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Fam Zheng
On Mon, 05/15 15:01, Peter Lieven wrote: > Am 15.05.2017 um 14:52 schrieb Fam Zheng: > > On Mon, 05/15 14:32, Peter Lieven wrote: > > > Am 15.05.2017 um 14:28 schrieb Fam Zheng: > > > > On Mon, 05/15 13:58, Peter Lieven wrote: > > > > > Am 15.05.2017 um 13:53 schrieb Fam Zheng: > > > > > > On Mon,

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Kevin Wolf
Am 15.05.2017 um 14:52 hat Fam Zheng geschrieben: > On Mon, 05/15 14:32, Peter Lieven wrote: > > Am 15.05.2017 um 14:28 schrieb Fam Zheng: > > > On Mon, 05/15 13:58, Peter Lieven wrote: > > > > Am 15.05.2017 um 13:53 schrieb Fam Zheng: > > > > > On Mon, 05/15 13:26, Peter Lieven wrote: > > > > > >

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Peter Lieven
Am 15.05.2017 um 14:52 schrieb Fam Zheng: On Mon, 05/15 14:32, Peter Lieven wrote: Am 15.05.2017 um 14:28 schrieb Fam Zheng: On Mon, 05/15 13:58, Peter Lieven wrote: Am 15.05.2017 um 13:53 schrieb Fam Zheng: On Mon, 05/15 13:26, Peter Lieven wrote: Am 15.05.2017 um 12:50 schrieb Fam Zheng:

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Fam Zheng
On Mon, 05/15 14:32, Peter Lieven wrote: > Am 15.05.2017 um 14:28 schrieb Fam Zheng: > > On Mon, 05/15 13:58, Peter Lieven wrote: > > > Am 15.05.2017 um 13:53 schrieb Fam Zheng: > > > > On Mon, 05/15 13:26, Peter Lieven wrote: > > > > > Am 15.05.2017 um 12:50 schrieb Fam Zheng: > > > > > > On Mon,

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Peter Lieven
Am 15.05.2017 um 14:28 schrieb Fam Zheng: On Mon, 05/15 13:58, Peter Lieven wrote: Am 15.05.2017 um 13:53 schrieb Fam Zheng: On Mon, 05/15 13:26, Peter Lieven wrote: Am 15.05.2017 um 12:50 schrieb Fam Zheng: On Mon, 05/15 12:02, Peter Lieven wrote: Hi Block developers, I would like to add a

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Fam Zheng
On Mon, 05/15 13:58, Peter Lieven wrote: > Am 15.05.2017 um 13:53 schrieb Fam Zheng: > > On Mon, 05/15 13:26, Peter Lieven wrote: > > > Am 15.05.2017 um 12:50 schrieb Fam Zheng: > > > > On Mon, 05/15 12:02, Peter Lieven wrote: > > > > > Hi Block developers, > > > > > > > > > > I would like to add

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Peter Lieven
Am 15.05.2017 um 13:53 schrieb Fam Zheng: On Mon, 05/15 13:26, Peter Lieven wrote: Am 15.05.2017 um 12:50 schrieb Fam Zheng: On Mon, 05/15 12:02, Peter Lieven wrote: Hi Block developers, I would like to add a feature to Qemu to drain all traffic from a block so that I can take external snapho

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Fam Zheng
On Mon, 05/15 13:26, Peter Lieven wrote: > Am 15.05.2017 um 12:50 schrieb Fam Zheng: > > On Mon, 05/15 12:02, Peter Lieven wrote: > > > Hi Block developers, > > > > > > I would like to add a feature to Qemu to drain all traffic from a block > > > so that > > > I can take external snaphosts withou

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Peter Lieven
Am 15.05.2017 um 12:50 schrieb Fam Zheng: On Mon, 05/15 12:02, Peter Lieven wrote: Hi Block developers, I would like to add a feature to Qemu to drain all traffic from a block so that I can take external snaphosts without the risk to that in the middle of a write operation. Its meant for cases

Re: [Qemu-devel] [RFC PATCH] qemu-io: add drain/undrain cmd

2017-05-15 Thread Fam Zheng
On Mon, 05/15 12:02, Peter Lieven wrote: > Hi Block developers, > > I would like to add a feature to Qemu to drain all traffic from a block so > that > I can take external snaphosts without the risk to that in the middle of a > write > operation. Its meant for cases where where QGA freeze/thaw i