scx_simple: re-add __COMPAT_scx_bpf_switch_all() #298
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Although newer kernels default to switching-all, some users might still be using the scheduler with older kernels. Therefore, ensure all tasks are moved to the SCHED_EXT class by calling __COMPAT_scx_bpf_switch_all() during init, so that scx_simple can still operate on these older kernels as well. Fixes: cf66e58 ("Sync from kernel (670bdab6073)") Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
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Mind if I ask what's the meaning and usage of switching-all ? |
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@vax-r it is possible to apply a scheduler only to the tasks that explicitly migrate to the |
htejun
approved these changes
May 20, 2024
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Although newer kernels default to switching-all, some users might still be using the scheduler with older kernels.
Therefore, ensure all tasks are moved to the SCHED_EXT class by calling __COMPAT_scx_bpf_switch_all() during init, so that scx_simple can still operate on these older kernels as well.
Fixes: cf66e58 ("Sync from kernel (670bdab6073)")