linux-kernel - Re: [PATCH v1 17/32] liveupdate: luo

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CA+CK2bCpY3xnPeEyWCRYVpRcs3maKMqZnApQtm5upkwmM80a3g@mail.gmail.com>
Date: Wed, 23 Jul 2025 13:53:11 +0000
From: Pasha Tatashin <pasha.tatashin@...een.com>
To: Randy Dunlap <rdunlap@...radead.org>
Cc: pratyush@...nel.org, jasonmiu@...gle.com, graf@...zon.com, 
	changyuanl@...gle.com, rppt@...nel.org, dmatlack@...gle.com, 
	rientjes@...gle.com, corbet@....net, ilpo.jarvinen@...ux.intel.com, 
	kanie@...ux.alibaba.com, ojeda@...nel.org, aliceryhl@...gle.com, 
	masahiroy@...nel.org, akpm@...ux-foundation.org, tj@...nel.org, 
	yoann.congal@...le.fr, mmaurer@...gle.com, roman.gushchin@...ux.dev, 
	chenridong@...wei.com, axboe@...nel.dk, mark.rutland@....com, 
	jannh@...gle.com, vincent.guittot@...aro.org, hannes@...xchg.org, 
	dan.j.williams@...el.com, david@...hat.com, joel.granados@...nel.org, 
	rostedt@...dmis.org, anna.schumaker@...cle.com, song@...nel.org, 
	zhangguopeng@...inos.cn, linux@...ssschuh.net, linux-kernel@...r.kernel.org, 
	linux-doc@...r.kernel.org, linux-mm@...ck.org, gregkh@...uxfoundation.org, 
	tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, 
	dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com, rafael@...nel.org, 
	dakr@...nel.org, bartosz.golaszewski@...aro.org, cw00.choi@...sung.com, 
	myungjoo.ham@...sung.com, yesanishhere@...il.com, Jonathan.Cameron@...wei.com, 
	quic_zijuhu@...cinc.com, aleksander.lobakin@...el.com, ira.weiny@...el.com, 
	andriy.shevchenko@...ux.intel.com, leon@...nel.org, lukas@...ner.de, 
	bhelgaas@...gle.com, wagi@...nel.org, djeffery@...hat.com, 
	stuart.w.hayes@...il.com, ptyadav@...zon.de, lennart@...ttering.net, 
	brauner@...nel.org, linux-api@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v1 17/32] liveupdate: luo_sysfs: add sysfs state monitoring

On Thu, Jun 26, 2025 at 12:29 AM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> Hi,
>
>
> On 6/25/25 4:18 PM, Pasha Tatashin wrote:
> > diff --git a/Documentation/ABI/testing/sysfs-kernel-liveupdate b/Documentation/ABI/testing/sysfs-kernel-liveupdate
> > new file mode 100644
> > index 000000000000..4cd4a4fe2f93
> > --- /dev/null
> > +++ b/Documentation/ABI/testing/sysfs-kernel-liveupdate
> > @@ -0,0 +1,51 @@
> > +What:                /sys/kernel/liveupdate/
> > +Date:                May 2025
> > +KernelVersion:       6.16.0
> > +Contact:     pasha.tatashin@...een.com
> > +Description: Directory containing interfaces to query the live
> > +             update orchestrator. Live update is the ability to reboot the
> > +             host kernel (e.g., via kexec, without a full power cycle) while
> > +             keeping specifically designated devices operational ("alive")
> > +             across the transition. After the new kernel boots, these devices
> > +             can be re-attached to their original workloads (e.g., virtual
> > +             machines) with their state preserved. This is particularly
> > +             useful, for example, for quick hypervisor updates without
> > +             terminating running virtual machines.
> > +
> > +
> > +What:                /sys/kernel/liveupdate/state
> > +Date:                May 2025
> > +KernelVersion:       6.16.0
> > +Contact:     pasha.tatashin@...een.com
> > +Description: Read-only file that displays the current state of the live
> > +             update orchestrator as a string. Possible values are:
> > +
> > +             "normal":       No live update operation is in progress. This is
> > +                             the default operational state.
>
> Just an opinion, but the ':'s after each possible value aren't needed
> and just add noise.

Removed columns, thanks.

Pasha