bootscript: Remove deprecated bootarg "swapaccount=1"

[ColorfulRhino]

Description

The "swapaccount=" option has been deprecated in 6.1. Disable it in almost all boot scripts except "boot-sun50iw9.cmd" since that one is used in sun50iw9 legacy kernel, which is version 4.9.

In theory, rk3588-legacy is also still <6.1, but that boot script is also used by 6.1 vendor kernel and the amount of new images being built/used with the 5.10 legacy kernel is likely minimal. As far as I know, bootscript won't update automatically, so these changes will only apply to freshly built images. Please correct me if I'm wrong.

Link to kernel commit:
torvalds/linux@b25806d

Closes issue #6633

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Also, there are other kernel parameters, e.g.:

• cgroup_enable=cpuset
• cgroup_memory=1
• cgroup_enable=memory

build/config/bootscripts/boot-rockchip64.cmd

Line 42 in d7db1cd

if test "${docker_optimizations}" = "on"; then setenv bootargs "${bootargs} cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory swapaccount=1"; fi

I couln't find out why cgroup_enable= is added here. The official kernel parameters doc (https://github.com/torvalds/linux/blob/master/Documentation/admin-guide/kernel-parameters.txt) only lists a cgroup_disable= option.
Maybe this is some relic of the past? Does anyone know?`

Is there a way to find out on a live kernel what the boot arguments actually did?

Jira reference number AR-2321

[igorpecovnik]

I think we can slowly start to deprecate 5.10.y on Rockchip. Regarding parameters lets wait few days if someone recalls / comment.

[adeepn]

jethub ok.

[ColorfulRhino]

I think we can slowly start to deprecate 5.10.y on Rockchip. Regarding parameters lets wait few days if someone recalls / comment.

Yes, I agree 👍

[joekhoobyar]

LGTM

[rpardini]

some relic of the past

Yes!

The bummer here is that we can't do it conditionally. But let's go ahead, if troubles pop up we adapt as it goes

[ColorfulRhino]

some relic of the past

Yes!

The bummer here is that we can't do it conditionally. But let's go ahead, if troubles pop up we adapt as it goes

Alright so we could remove cgroup_enable=cpuset and cgroup_enable=memory as well. Searching for cgroup_enable in the kernel code (Link) does not yield anything apart from static int cgroup_enable_threaded(struct cgroup *cgrp) which sounds like a different thing to me.

Do you know anything about cgroup_memory=1 ?

Maybe these options are something that are not actually for the linux kernel but for another software?
I have looked at old kernel versions like 3.10 and couldn't even find these parameters there in this list: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/kernel-parameters.txt?h=linux-3.10.y