sched_ext: Merge branch 'for-7.2-fixes' into for-7.3

Pull to receive:

 c10b216a07 ("sched/core: Handle pick_task() releasing the rq lock")
 f3629c63a4 ("sched/core: Make core-sched flips wait for in-flight selections")
 ffaab58d21 ("sched_ext: Replace SCX_RQ_BAL_KEEP with a dispatch verdict return")
 3dd52416e4 ("sched_ext: Fix this_rq() assumptions in dispatch kfuncs")
 f2da958711 ("sched_ext: Count rq lock releases in rq->scx.lock_drop_seq")
 d954004205 ("sched_ext: Fix rq->core_pick corruption under core scheduling")

for the pending core scheduling follow-ups and to resolve the conflicts
with the code reorganization and cap gate work on for-7.3.

ffaab58d21 converts scx_dispatch_sched() to a dispatch verdict return
which for-7.3 moved from ext.c into inlines.h. Resolved by applying the
conversion to the relocated copy and combining balance_one()'s verdict
returns with the scx_task_can_stay_on_cpu() gate from the cap work.

ffaab58d21 and 3dd52416e4 update scx_bpf_sub_dispatch() which
for-7.3 moved into sub.c. Resolved by applying the scx_locked_rq()
switch and the verdict test to the sub.c copy.

f2da958711 instruments the open-coded lock releases in
consume_remote_task() which for-7.3 folded into switch_rq_lock().
Resolved by keeping the accounting in switch_rq_lock() which covers all
its callers.

d954004205 widens the put_prev_task_scx() WARN suppression to all
core-sched rqs on the same condition that for-7.3 gated with
scx_task_can_stay_on_cpu(). Resolved by combining both.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2026-08-12 06:46:28 -10:00
commit 1be10bb070
10 changed files with 280 additions and 99 deletions