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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-07-19 10:40:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-07-19 10:40:30 -0700 |
| commit | bf61759db409ce21a8f2a5bb442b7c35905a713d (patch) | |
| tree | 41477119a61d32ad1a1d1e6e05b1608753d7f4c7 /tools | |
| parent | c64004df8914cf5cf4455d9e78d8f371d0f7322f (diff) | |
| parent | 06efc9fe0b8deeb83b47fd7c5451fe1a60c8a761 (diff) | |
Merge tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
- Fix handling of migration disabled tasks in default idle selection
- update_locked_rq() called __this_cpu_write() spuriously with NULL
when @rq was not locked. As the writes were spurious, it didn't break
anything directly. However, the function could be called in a
preemptible leading to a context warning in __this_cpu_write(). Skip
the spurious NULL writes.
- Selftest fix on UP
* tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: idle: Handle migration-disabled tasks in idle selection
sched/ext: Prevent update_locked_rq() calls with NULL rq
selftests/sched_ext: Fix exit selftest hang on UP
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/sched_ext/exit.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/testing/selftests/sched_ext/exit.c b/tools/testing/selftests/sched_ext/exit.c index 9451782689de..ee25824b1cbe 100644 --- a/tools/testing/selftests/sched_ext/exit.c +++ b/tools/testing/selftests/sched_ext/exit.c @@ -22,6 +22,14 @@ static enum scx_test_status run(void *ctx) struct bpf_link *link; char buf[16]; + /* + * On single-CPU systems, ops.select_cpu() is never + * invoked, so skip this test to avoid getting stuck + * indefinitely. + */ + if (tc == EXIT_SELECT_CPU && libbpf_num_possible_cpus() == 1) + continue; + skel = exit__open(); SCX_ENUM_INIT(skel); skel->rodata->exit_point = tc; |