From: Andrea Righi <andrea.righi@canonical.com> mainline inclusion from mainline-v6.12-rc1 commit b5ba2e1a955417e78a6018fb736a14c03df0abcd category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IDC9YK Reference: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commi... -------------------------------- 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> Signed-off-by: Zicheng Qu <quzicheng@huawei.com> --- kernel/Kconfig.preempt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index 5ec2759552f6..de625357e5aa 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -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 -- 2.34.1