6.9-rc4 + sched_ext compile fails, related to "scx_tick"

[MichaelDeets]

While trying to compile 6.9-rc4 with sched_ext applied, the build fails due to scx_tick being called within kernel/sched/core.c.

Specifically, it calls scx_tick(rq), while the definition within kernel/sched/ext.h uses just void. Changing the definition from void (within kernel/sched/ext.h) to struct rq *rq results in the kernel compiling without errors. Given I have not tested this kernel yet, I do not want to submit a PR; I could submit one after testing, but I would rather refer this issue to someone who knows what they are doing.

I'm currently using 6.8.7, and currently have a working configuration (can use scx_lavd for example). I'm extremely novice, so I'm hesitant to say anything; I would hate to waste people's time.

EDIT: Thanks I'm just going to test out and will report back if anything interesting pops up

[ptr1337]

Weve succesfully compiled 6.9rc4 with following patchset:
https://github.com/CachyOS/kernel-patches/blob/master/6.9/sched/0001-sched-ext.patch

Please give it a try.

[htejun]

#184 should fix it. Thanks.

[MichaelDeets]

Compiled fine, though I had to adjust the patch provided by CachyOS as some of the changes had already been applied. Was able to run scx_lavd just fine and everything seems to work well.