Comment # 8 on bug 1178797 from Lukas Ocilka

So, although 5.4 seems to be "the version" where elevator has been removed,
we seem to (not to) have it in 5.3.18 either.

My SLE 15 SP2 that runs on 5.3.18-24 already reports that warning.

Jan, could you PLS elaborate a bit on this? Where has it been removed? Is that
in release notes?

[    0.155871] Kernel command line:
BOOT_IMAGE=/boot/vmlinuz-5.3.18-24.9-default root=UUID=27b298b9-18b9-4
9f2-95a3-d0155b05c2a4 splash=silent
resume=/dev/disk/by-id/ata-VBOX_HARDDISK_VBbf4397f4-a5d8bcc7-part3 mit
igations=auto quiet elevator=deadline
[    0.155952] Kernel parameter elevator= does not have any effect anymore.
               Please use sysfs to set IO scheduler for individual devices.
...
[    1.424185] io scheduler mq-deadline registered
[    1.424185] io scheduler kyber registered
[    1.424185] io scheduler bfq registered