sched_ext: Fix missing return after scx_error() in scx_dsq_move()

Browse source

When scx_bpf_dsq_move[_vtime]() is called on a task that belongs to a
different scheduler, scx_error() is invoked to flag the violation.
scx_error() schedules an asynchronous scheduler teardown via irq_work
and returns immediately, so execution falls through and the DSQ move
proceeds on a cross-scheduler task regardless, potentially corrupting
DSQ state.

Add the missing return false so the function exits right after
reporting the error, consistent with the other early-exit checks in
the same function (e.g. scx_vet_enq_flags() failure at the top).

Fixes: bb4d9fd551 ("sched_ext: scx_dsq_move() should validate the task belongs to the right scheduler")
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

...

This commit is contained in:

Cheng-Yang Chou 2026-03-26 09:29:03 +08:00 • committed by Tejun Heo

parent a313357a34

commit 3d6379196d

1 changed files with 1 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

kernel/sched/ext.c

View file