Linus Torvalds 762122d75e sched_ext: Fixes for v7.3-rc6 ... - Taking a CPU offline could hang, or stall until the watchdog ejected the BPF scheduler, when tasks on the dying CPU were still held by the scheduler or sitting on a user dispatch queue. Re-enqueue them onto the local queue when the runqueue goes offline so that the CPU pushes them off like the other sched classes. - The sequence number guarding against stale dispatches was per runqueue, so a task re-enqueued on another CPU could get the same number and a dispatch meant for its earlier instance was applied to the new one. Use a per-task counter. - A task dispatched to another CPU's local queue got its ops.dequeue() only when picked to run and flagged as a core-sched pick. Call it at insertion like for same-CPU dispatches. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCasUtpQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGSu5AQDwrICXDyQlGjzAXzFq+bEKVhtMkHxuk8hm5tAy za4AwwD9FjhJHRy5x89TAmea5Cj++AToL6npdEHv7KDcgqNxsAU= =/aDw -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-7.3-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - Taking a CPU offline could hang, or stall until the watchdog ejected the BPF scheduler, when tasks on the dying CPU were still held by the scheduler or sitting on a user dispatch queue. Re-enqueue them onto the local queue when the runqueue goes offline so that the CPU pushes them off like the other sched classes. - The sequence number guarding against stale dispatches was per runqueue, so a task re-enqueued on another CPU could get the same number and a dispatch meant for its earlier instance was applied to the new one. Use a per-task counter. - A task dispatched to another CPU's local queue got its ops.dequeue() only when picked to run and flagged as a core-sched pick. Call it at insertion like for same-CPU dispatches. * tag 'sched_ext-for-7.3-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Generate qseq from a per-task counter selftests/sched_ext: Add a test for ops.dequeue() on remote local DSQ moves sched_ext: Call ops.dequeue() when a task arrives on a remote local DSQ sched_ext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler		2026-10-07 02:03:46 +02:00
..
ext	sched_ext: Fixes for v7.3-rc6	2026-10-07 02:03:46 +02:00
autogroup.c
autogroup.h
build_policy.c
build_utility.c
clock.c
completion.c
core_sched.c
core.c	sched/core: Account PSI IRQ time to the execution context, not the scheduling context	2026-09-24 10:32:50 +02:00
cpuacct.c
cpudeadline.c
cpudeadline.h
cpufreq_schedutil.c
cpufreq.c
cpupri.c
cpupri.h
cputime.c
deadline.c
debug.c
fair.c	sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code	2026-09-22 10:50:49 +02:00
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	sched_ext: Fixes for v7.3-rc6	2026-10-07 02:03:46 +02:00
smp.h
stats.c
stats.h
stop_task.c
swait.c
syscalls.c
topology.c	sched/cache: Refresh LLC capacity across CPU hotplug, to fix capacity underestimation bug	2026-09-22 10:50:54 +02:00
wait_bit.c
wait.c