ubuntu_ltp_controllers testcase memcontrol02 fails on jammy-hwe-5.19

[Roxana Nicolescu]

The testcase memcontrol02 from ubuntu_ltp_controllers is failing on btrfs with the 5.19 hwe jammy bt on 64k-generic:

16166 tst_test.c:1599: TINFO: Testing on btrfs
16167 tst_test.c:1064: TINFO: Formatting /dev/loop3 with btrfs opts='' extra opts=''
16168 memcontrol02.c:93: TPASS: Expect: (current=0) == 0
16169 memcontrol02.c:99: TINFO: Added proc to memcg: memory.current=2097152
16170 memcontrol02.c:46: TPASS: Expect: (memory.current=54525952) >= (size=52428800)
16171 memcontrol02.c:51: TFAIL: Expect: (memory.stat.anon=0) > 0
16172 memcontrol02.c:52: TFAIL: Expect: (size=52428800) ~= (memory.stat.anon=0)
16173 memcontrol02.c:54: TFAIL: Expect: (memory.current=54525952) ~= (memory.stat.anon=0)
16174 memcontrol02.c:93: TPASS: Expect: (current=0) == 0

This seems to be a new failure.