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| author | Tejun Heo <tj@kernel.org> | 2026-03-07 18:29:50 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-03-07 18:29:50 +0300 |
| commit | 84b1a0ea0b7c23dec240783a592e480780efe459 (patch) | |
| tree | fb54f1eda2215bcc252843ba7e2b940b0a0bfa49 /include/linux | |
| parent | 35250720d6ed1e83e0d1e12b7e8bf7b8316d7d58 (diff) | |
| download | linux-84b1a0ea0b7c23dec240783a592e480780efe459.tar.xz | |
sched_ext: Implement scx_bpf_dsq_reenq() for user DSQs
scx_bpf_dsq_reenq() currently only supports local DSQs. Extend it to support
user-defined DSQs by adding a deferred re-enqueue mechanism similar to the
local DSQ handling.
Add per-cpu deferred_reenq_user_node/flags to scx_dsq_pcpu and
deferred_reenq_users list to scx_rq. When scx_bpf_dsq_reenq() is called on a
user DSQ, the DSQ's per-cpu node is added to the current rq's deferred list.
process_deferred_reenq_users() then iterates the DSQ using the cursor helpers
and re-enqueues each task.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched/ext.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/sched/ext.h b/include/linux/sched/ext.h index 303f57dfb947..e77504faa0bc 100644 --- a/include/linux/sched/ext.h +++ b/include/linux/sched/ext.h @@ -62,8 +62,14 @@ enum scx_dsq_id_flags { SCX_DSQ_LOCAL_CPU_MASK = 0xffffffffLLU, }; +struct scx_deferred_reenq_user { + struct list_head node; + u64 flags; +}; + struct scx_dsq_pcpu { struct scx_dispatch_q *dsq; + struct scx_deferred_reenq_user deferred_reenq_user; }; /* |