get mem on cgroupsv2

[KannarFr]

Description of your changes:

Fixes: #2118

[KannarFr]

I checked the failing test but got

Identified problems
--
  | No identified problem
  | No problems were identified. If you know why this problem occurred, please add a suitable Cause for it.

Shall I run a bash linter or something?

[guits]

jenkins lint

[guits]

In /common_functions.sh line 525:
  if grep -q cgroup2 /proc/filesystems; then
  ^-- SC1009 (info): The mentioned syntax error was in this if expression.


In /common_functions.sh line 529:
  elif
  ^-- SC1049 (error): Did you forget the 'then' for this 'elif'?
  ^-- SC1073 (error): Couldn't parse this elif clause. Fix to allow more checks.


In /common_functions.sh line 533:
  fi
    ^-- SC1072 (error): Unexpected keyword/token. Fix any mentioned problems and try again.

[guits]

not related to this patch but if you want to address the warning SC2071 L124 you can apply this small change:

diff --git a/src/daemon/common_functions.sh b/src/daemon/common_functions.sh
index 1b679c6c..9e99046f 100755
--- a/src/daemon/common_functions.sh
+++ b/src/daemon/common_functions.sh
@@ -121,7 +121,7 @@ function dev_part {
       if [[ $(readlink -f "$option") == "$desired_partition" ]]; then
         local optprefixlen
         optprefixlen=$(prefix_length "$option" "$osd_device")
-        if [[ $optprefixlen > $pfxlen ]]; then
+        if [[ $optprefixlen -gt $pfxlen ]]; then
           link=$option
           pfxlen=$optprefixlen
         fi

[guits]

@KannarFr you need to add a sign off to your commit message

thanks!

[KannarFr]

@guits thanks for the hints. I applied all of them. I also sign off it.

[guits]

@KannarFr Could you squash the first 3 commits? I think you should have only 2 commits in this PR.

get mem on cgroupsv2 and apply unrelated lint fix

Thanks!

[KannarFr]

@guits Damn I thought github will do it by itself. Done.

[guits]

failure in container / arm64 is unrelated to this patch

[KannarFr]

@guits can you make a release with this patch? :)

[guits]

@KannarFr which release are you looking for?

[KannarFr]

ceph/daemon