[systemd-devel] Antw: Re: Antw: [EXT] Re: [systemd‑devel] the need for a discoverable sub‑volumes specification

[Ulrich Windl]

>>> Chris Murphy <lists at colorremedies.com> schrieb am 10.12.2021 um 16:59 in
Nachricht
<CAJCQCtQro6UfMQJDyBxd=Ygd9mTHwtxZMGh58UO2aoC6oP5m6Q at mail.gmail.com>:
> On Mon, Nov 22, 2021 at 3:02 AM Ulrich Windl
> <Ulrich.Windl at rz.uni-regensburg.de> wrote:
>>
>> >>> Lennart Poettering <lennart at poettering.net> schrieb am 19.11.2021 um 10:17
>> in
>> Nachricht <YZdrlBiIK3rt7l0z at gardel-login>:
>> > On Do, 18.11.21 14:51, Chris Murphy (lists at colorremedies.com) wrote:
>> >
>> >> How to do swapfiles?
>> >
>> > Is this really a concept that deserves too much attention? I mean, I
>> > have the suspicion that half the benefit of swap space is that it can
>> > act as backing store for hibernation. But swap files are icky for that
>> > since that means the resume code has to mount the fs first, but given
>> > the fs is dirty during the hibernation state this is highly problematic.
>> >
>> > Hence, I have the suspicion that if you do swap you should probably do
>> > swap partitions, not swap files, because it can cover all usecase:
>> > paging *and* hibernation.
>>
>> Out of curiosity: What about swap LVs, possibly thin-provisioned ones?
> 
> I don't think that's supported.
> https://listman.redhat.com/archives/linux-lvm/2020-November/msg00039.html 
> 

AFAIK Redhat-based Qubes OS uses it; that's where I first saw it.

> 
> -- 
> Chris Murphy