en Copyright 2015 Java http://kernelsources.org:8080/source/history/linux/tools/testing/selftests/rseq/check_optimized.c#7f0023215262221ca08d56be2203e8a4770be033 Merge tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull scheduler fixes from Ingo Molnar: - Fix spurious failures in rseq self-tests (Mark Brown) - Fix rseq rseq::cpu_id_start ABI regression due to TCMalloc's creative use of the supposedly read-only field The fix is to introduce a new ABI variant based on a new (larger) rseq area registration size, to keep the TCMalloc use of rseq backwards compatible on new kernels (Thomas Gleixner) - Fix wakeup_preempt_fair() for not waking up task (Vincent Guittot) - Fix s64 mult overflow in vruntime_eligible() (Zhan Xusheng)* tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Fix wakeup_preempt_fair() for not waking up task sched/fair: Fix overflow in vruntime_eligible() selftests/rseq: Expand for optimized RSEQ ABI v2 rseq: Reenable performance optimizations conditionally rseq: Implement read only ABI enforcement for optimized RSEQ V2 mode selftests/rseq: Validate legacy behavior selftests/rseq: Make registration flexible for legacy and optimized mode selftests/rseq: Skip tests if time slice extensions are not available rseq: Revert to historical performance killing behaviour rseq: Don't advertise time slice extensions if disabled rseq: Protect rseq_reset() against interrupts rseq: Set rseq::cpu_id_start to 0 on unregistration selftests/rseq: Don't run tests with runner scripts outside of the scripts List of files: /linux/tools/testing/selftests/rseq/check_optimized.c Sat, 09 May 2026 04:42:10 +0200 Linus Torvalds <torvalds@linux-foundation.org> http://kernelsources.org:8080/source/history/linux/tools/testing/selftests/rseq/check_optimized.c#e744060076871eebc2647b24420b550ff44b2b65 selftests/rseq: Expand for optimized RSEQ ABI v2Update the selftests so they are executed for legacy (32 bytes RSEQ region)and optimized RSEQ ABI v2 mode.Fixes: d6200245c75e ("rseq: Allow registering RSEQ with slice extension")Signed-off-by: Thomas Gleixner <tglx@kernel.org>Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>Reviewed-by: Dmitry Vyukov <dvyukov@google.com>Tested-by: Dmitry Vyukov <dvyukov@google.com>Link: https://patch.msgid.link/20260428224428.009121296%40kernel.orgCc: stable@vger.kernel.org List of files: /linux/tools/testing/selftests/rseq/check_optimized.c Sat, 25 Apr 2026 14:48:23 +0200 Thomas Gleixner <tglx@kernel.org>