Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-19 Thread Alberto Garcia
On Fri 16 Nov 2018 04:18:34 PM CET, Kevin Wolf wrote: > Am 16.11.2018 um 16:03 hat Alberto Garcia geschrieben: >> > I don't think anything needs a way to generally block graph changes >> > around some node. We only need to prevent changes to very specific >> > sets of edges. This is something tha

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Max Reitz
I feel bad for trimming your mail so much, but that's just because I've read it and I agree. So, it's trimming of the good kind. (Then again, when is trimming of a long mail ever bad?) On 16.11.18 18:13, Kevin Wolf wrote: [...] > What we noted down about counters was more meaningful progress be

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Alberto Garcia
(I just wanted to reply quickly to this point, I'll read the rest of the e-mail later) On Fri 16 Nov 2018 05:34:08 PM CET, Max Reitz wrote: > > GRAPH_MOD with the meaning that Berto suggested isn't weird or > > complicated to understand. It's only the wrong tool because it > > blocks more than we

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Kevin Wolf
Am 16.11.2018 um 17:34 hat Max Reitz geschrieben: > On 16.11.18 16:51, Kevin Wolf wrote: > > Am 16.11.2018 um 16:27 hat Max Reitz geschrieben: > >> On 16.11.18 16:18, Kevin Wolf wrote: > >>> Am 16.11.2018 um 16:03 hat Alberto Garcia geschrieben: > > I don't think anything needs a way to general

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Max Reitz
On 16.11.18 16:51, Kevin Wolf wrote: > Am 16.11.2018 um 16:27 hat Max Reitz geschrieben: >> On 16.11.18 16:18, Kevin Wolf wrote: >>> Am 16.11.2018 um 16:03 hat Alberto Garcia geschrieben: > I don't think anything needs a way to generally block graph changes > around some node. We only need

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Kevin Wolf
Am 16.11.2018 um 16:27 hat Max Reitz geschrieben: > On 16.11.18 16:18, Kevin Wolf wrote: > > Am 16.11.2018 um 16:03 hat Alberto Garcia geschrieben: > >>> I don't think anything needs a way to generally block graph changes > >>> around some node. We only need to prevent changes to very specific > >

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Max Reitz
On 16.11.18 16:18, Kevin Wolf wrote: > Am 16.11.2018 um 16:03 hat Alberto Garcia geschrieben: >>> I don't think anything needs a way to generally block graph changes >>> around some node. We only need to prevent changes to very specific >>> sets of edges. This is something that the permission sys

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Alberto Garcia
On Fri 16 Nov 2018 04:03:12 PM CET, Alberto Garcia wrote: >> top (T) -> intermediate (I) -> base (B) >> >> Now you commit from top to base. Clearly you don't want the backing >> chain between top and base to change. So say you unshare the GRAPH_MOD >> permission (implying that whenever a parent d

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Max Reitz
On 16.11.18 16:03, Alberto Garcia wrote: > On Fri 16 Nov 2018 01:14:37 PM CET, Max Reitz wrote: >> Permission system >> = >> >> GRAPH_MOD >> - >> >> We need some way for the commit job to prevent graph changes on its >> chain while it is runni

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Kevin Wolf
Am 16.11.2018 um 16:03 hat Alberto Garcia geschrieben: > > I don't think anything needs a way to generally block graph changes > > around some node. We only need to prevent changes to very specific > > sets of edges. This is something that the permission system just > > cannot do. > > But what w

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Alberto Garcia
On Fri 16 Nov 2018 01:14:37 PM CET, Max Reitz wrote: > Permission system > = > > GRAPH_MOD > - > > We need some way for the commit job to prevent graph changes on its > chain while it is running. Our current blocker doesn’t do the job, >

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-16 Thread Max Reitz
On 15.11.18 15:28, Alberto Garcia wrote: > On Wed 14 Nov 2018 06:24:10 PM CET, Max Reitz wrote: Permission system = GRAPH_MOD - We need some way for the commit job to prevent graph changes on its chain while it is running. Our current

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-15 Thread Denis V . Lunev
On 11/12/18 1:25 AM, Max Reitz wrote: > This is what I’ve taken from two or three BoF-like get-togethers on > blocky things. Amendments are more than welcome, of course. > > > > Permission system > = > > GRAPH_MOD > - > > We need some way for the commit job to prevent graph

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-15 Thread Alberto Garcia
On Wed 14 Nov 2018 06:24:10 PM CET, Max Reitz wrote: >>> Permission system >>> = >>> >>> GRAPH_MOD >>> - >>> >>> We need some way for the commit job to prevent graph changes on its >>> chain while it is running. Our current blocker doesn’t do the job, >>> however. What to

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-14 Thread Max Reitz
On 13.11.18 16:12, Alberto Garcia wrote: > On Sun 11 Nov 2018 11:25:00 PM CET, Max Reitz wrote: > >> Permission system >> = >> >> GRAPH_MOD >> - >> >> We need some way for the commit job to prevent graph changes on its >> chain while it is running. Our current blocker does

Re: [Qemu-devel] KVM Forum block no[td]es

2018-11-13 Thread Alberto Garcia
On Sun 11 Nov 2018 11:25:00 PM CET, Max Reitz wrote: > Permission system > = > > GRAPH_MOD > - > > We need some way for the commit job to prevent graph changes on its > chain while it is running. Our current blocker doesn’t do the job, > however. What to do? > > - We have

[Qemu-devel] KVM Forum block no[td]es

2018-11-11 Thread Max Reitz
This is what I’ve taken from two or three BoF-like get-togethers on blocky things. Amendments are more than welcome, of course. Permission system = GRAPH_MOD - We need some way for the commit job to prevent graph changes on its chain while it is running. Our current b