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sched_ext: add CONFIG_DEBUG_INFO_BTF dependency

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Without BTF, attempting to load any sched_ext scheduler will result in
an error like the following:

  libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was CONFIG_DEBUG_INFO_BTF enabled?

This makes sched_ext pretty much unusable, so explicitly depend on
CONFIG_DEBUG_INFO_BTF to prevent these issues.

Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Andrea Righi 2024-06-27 20:45:22 +02:00 committed by Tejun Heo
parent 1ff4f169c9
commit b5ba2e1a95
1 changed files with 1 additions and 1 deletions
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2
kernel/Kconfig.preempt
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@ -135,7 +135,7 @@ config SCHED_CORE
config SCHED_CLASS_EXT
bool "Extensible Scheduling Class"
depends on BPF_SYSCALL && BPF_JIT
depends on BPF_SYSCALL && BPF_JIT && DEBUG_INFO_BTF
help
This option enables a new scheduler class sched_ext (SCX), which
allows scheduling policies to be implemented as BPF programs to