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7cd9a5d7d4
Now that scx_kfunc_context_filter enforces context-sensitive kfunc restrictions at BPF load time, the per-task runtime enforcement via scx_kf_mask is redundant. Remove it entirely: - Delete enum scx_kf_mask, the kf_mask field on sched_ext_entity, and the scx_kf_allow()/scx_kf_disallow()/scx_kf_allowed() helpers along with the higher_bits()/highest_bit() helpers they used. - Strip the @mask parameter (and the BUILD_BUG_ON checks) from the SCX_CALL_OP[_RET]/SCX_CALL_OP_TASK[_RET]/SCX_CALL_OP_2TASKS_RET macros and update every call site. Reflow call sites that were wrapped only to fit the old 5-arg form and now collapse onto a single line under ~100 cols. - Remove the in-kfunc scx_kf_allowed() runtime checks from scx_dsq_insert_preamble(), scx_dsq_move(), scx_bpf_dispatch_nr_slots(), scx_bpf_dispatch_cancel(), scx_bpf_dsq_move_to_local___v2(), scx_bpf_sub_dispatch(), scx_bpf_reenqueue_local(), and the per-call guard inside select_cpu_from_kfunc(). scx_bpf_task_cgroup() and scx_kf_allowed_on_arg_tasks() were already cleaned up in the "drop redundant rq-locked check" patch. scx_kf_allowed_if_unlocked() was rewritten in the preceding "decouple" patch. No further changes to those helpers here. Co-developed-by: Juntong Deng <juntong.deng@outlook.com> Signed-off-by: Juntong Deng <juntong.deng@outlook.com> Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andrea Righi <arighi@nvidia.com> |
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| .. | ||
| autogroup.c | ||
| autogroup.h | ||
| build_policy.c | ||
| build_utility.c | ||
| clock.c | ||
| completion.c | ||
| core_sched.c | ||
| core.c | ||
| cpuacct.c | ||
| cpudeadline.c | ||
| cpudeadline.h | ||
| cpufreq_schedutil.c | ||
| cpufreq.c | ||
| cpupri.c | ||
| cpupri.h | ||
| cputime.c | ||
| deadline.c | ||
| debug.c | ||
| ext_idle.c | ||
| ext_idle.h | ||
| ext_internal.h | ||
| ext.c | ||
| ext.h | ||
| fair.c | ||
| features.h | ||
| idle.c | ||
| isolation.c | ||
| loadavg.c | ||
| Makefile | ||
| membarrier.c | ||
| pelt.c | ||
| pelt.h | ||
| psi.c | ||
| rq-offsets.c | ||
| rt.c | ||
| sched-pelt.h | ||
| sched.h | ||
| smp.h | ||
| stats.c | ||
| stats.h | ||
| stop_task.c | ||
| swait.c | ||
| syscalls.c | ||
| topology.c | ||
| wait_bit.c | ||
| wait.c | ||