From: Heiko Carstens <hca@linux.ibm.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Michael Jeanson <mjeanson@efficios.com>,
Jens Axboe <axboe@kernel.dk>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
x86@kernel.org, Arnd Bergmann <arnd@arndb.de>,
Huacai Chen <chenhuacai@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>
Subject: Re: [patch V4 33/36] s390: Use generic TIF bits
Date: Thu, 11 Sep 2025 13:03:11 +0200 [thread overview]
Message-ID: <20250911110311.8894B08-hca@linux.ibm.com> (raw)
In-Reply-To: <20250908212927.373210812@linutronix.de>
On Mon, Sep 08, 2025 at 11:32:34PM +0200, Thomas Gleixner wrote:
> No point in defining generic items and the upcoming RSEQ optimizations are
> only available with this _and_ the generic entry infrastructure, which is
> already used by s390. So no further action required here.
>
> This leaves a comment about the AUDIT/TRACE/SECCOMP bits which are handled
> by SYSCALL_WORK in the generic code, so they seem redundant, but that's a
> problem for the s390 wizards to think about.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Heiko Carstens <hca@linux.ibm.com>
> Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
> Cc: Sven Schnelle <svens@linux.ibm.com>
>
> ---
> arch/s390/Kconfig | 1
> arch/s390/include/asm/thread_info.h | 44 ++++++++++++++----------------------
> 2 files changed, 19 insertions(+), 26 deletions(-)
FWIW:
Acked-by: Heiko Carstens <hca@linux.ibm.com>
next prev parent reply other threads:[~2025-09-11 11:03 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 21:31 [patch V4 00/36] rseq: Optimize exit to user space Thomas Gleixner
2025-09-08 21:31 ` [patch V4 01/36] rseq: Avoid pointless evaluation in __rseq_notify_resume() Thomas Gleixner
2025-09-08 21:31 ` [patch V4 02/36] rseq: Condense the inline stubs Thomas Gleixner
2025-09-08 21:31 ` [patch V4 03/36] rseq: Move algorithm comment to top Thomas Gleixner
2025-09-08 21:31 ` [patch V4 04/36] rseq: Remove the ksig argument from rseq_handle_notify_resume() Thomas Gleixner
2025-09-08 21:31 ` [patch V4 05/36] rseq: Simplify registration Thomas Gleixner
2025-09-08 21:31 ` [patch V4 06/36] rseq: Simplify the event notification Thomas Gleixner
2025-09-09 13:18 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 07/36] rseq, virt: Retrigger RSEQ after vcpu_run() Thomas Gleixner
2025-09-09 0:00 ` Sean Christopherson
2025-09-09 12:10 ` Thomas Gleixner
2025-09-09 13:21 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 08/36] rseq: Avoid CPU/MM CID updates when no event pending Thomas Gleixner
2025-09-09 13:25 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 09/36] rseq: Introduce struct rseq_data Thomas Gleixner
2025-09-09 13:30 ` Mathieu Desnoyers
2025-09-12 20:44 ` Thomas Gleixner
2025-09-12 21:33 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 10/36] entry: Cleanup header Thomas Gleixner
2025-09-08 21:31 ` [patch V4 11/36] entry: Remove syscall_enter_from_user_mode_prepare() Thomas Gleixner
2025-09-09 13:33 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 12/36] entry: Inline irqentry_enter/exit_from/to_user_mode() Thomas Gleixner
2025-09-09 13:38 ` Mathieu Desnoyers
2025-09-09 14:10 ` Thomas Gleixner
2025-09-09 14:59 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 13/36] sched: Move MM CID related functions to sched.h Thomas Gleixner
2025-09-08 21:31 ` [patch V4 14/36] rseq: Cache CPU ID and MM CID values Thomas Gleixner
2025-09-09 13:43 ` Mathieu Desnoyers
2025-09-09 14:13 ` Thomas Gleixner
2025-09-09 15:01 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 15/36] rseq: Record interrupt from user space Thomas Gleixner
2025-09-09 13:53 ` Mathieu Desnoyers
2025-09-09 14:17 ` Thomas Gleixner
2025-09-09 15:05 ` Mathieu Desnoyers
2025-09-08 21:31 ` [patch V4 16/36] rseq: Provide tracepoint wrappers for inline code Thomas Gleixner
2025-09-08 21:31 ` [patch V4 17/36] rseq: Expose lightweight statistics in debugfs Thomas Gleixner
2025-09-08 21:32 ` [patch V4 18/36] rseq: Provide static branch for runtime debugging Thomas Gleixner
2025-09-08 21:32 ` [patch V4 19/36] rseq: Provide and use rseq_update_user_cs() Thomas Gleixner
2025-09-09 15:11 ` Mathieu Desnoyers
2025-09-08 21:32 ` [patch V4 20/36] rseq: Replace the original debug implementation Thomas Gleixner
2025-09-08 21:32 ` [patch V4 21/36] rseq: Make exit debugging static branch based Thomas Gleixner
2025-09-08 21:32 ` [patch V4 22/36] rseq: Use static branch for syscall exit debug when GENERIC_IRQ_ENTRY=y Thomas Gleixner
2025-09-08 21:32 ` [patch V4 23/36] rseq: Provide and use rseq_set_ids() Thomas Gleixner
2025-09-11 13:40 ` Mathieu Desnoyers
2025-09-11 16:02 ` Thomas Gleixner
2025-09-11 17:13 ` Mathieu Desnoyers
2025-09-08 21:32 ` [patch V4 24/36] rseq: Separate the signal delivery path Thomas Gleixner
2025-09-08 21:32 ` [patch V4 25/36] rseq: Rework the TIF_NOTIFY handler Thomas Gleixner
2025-09-08 21:32 ` [patch V4 26/36] rseq: Optimize event setting Thomas Gleixner
2025-09-11 14:03 ` Mathieu Desnoyers
2025-09-11 16:06 ` Thomas Gleixner
2025-09-11 17:15 ` Mathieu Desnoyers
2025-09-12 6:58 ` Thomas Gleixner
2025-09-08 21:32 ` [patch V4 27/36] rseq: Implement fast path for exit to user Thomas Gleixner
2025-09-11 14:27 ` Mathieu Desnoyers
2025-09-11 16:08 ` Thomas Gleixner
2025-09-08 21:32 ` [patch V4 28/36] rseq: Switch to fast path processing on " Thomas Gleixner
2025-09-11 14:44 ` Mathieu Desnoyers
2025-09-11 14:45 ` Mathieu Desnoyers
2025-09-11 16:50 ` Thomas Gleixner
2025-09-11 16:47 ` Thomas Gleixner
2025-09-11 20:00 ` Mathieu Desnoyers
2025-09-12 14:22 ` Thomas Gleixner
2025-09-12 15:44 ` Mathieu Desnoyers
2025-09-08 21:32 ` [patch V4 29/36] entry: Split up exit_to_user_mode_prepare() Thomas Gleixner
2025-09-08 21:32 ` [patch V4 30/36] rseq: Split up rseq_exit_to_user_mode() Thomas Gleixner
2025-09-08 21:32 ` [patch V4 31/36] asm-generic: Provide generic TIF infrastructure Thomas Gleixner
2025-09-17 6:16 ` [tip: core/core] " tip-bot2 for Thomas Gleixner
2025-09-08 21:32 ` [patch V4 32/36] x86: Use generic TIF bits Thomas Gleixner
2025-09-17 6:16 ` [tip: core/core] " tip-bot2 for Thomas Gleixner
2025-09-08 21:32 ` [patch V4 33/36] s390: " Thomas Gleixner
2025-09-11 9:11 ` Sven Schnelle
2025-09-11 11:03 ` Heiko Carstens [this message]
2025-09-17 6:16 ` [tip: core/core] " tip-bot2 for Thomas Gleixner
2025-09-08 21:32 ` [patch V4 34/36] loongarch: " Thomas Gleixner
2025-09-17 6:16 ` [tip: core/core] " tip-bot2 for Thomas Gleixner
2025-09-08 21:32 ` [patch V4 35/36] riscv: " Thomas Gleixner
2025-09-17 6:16 ` [tip: core/core] " tip-bot2 for Thomas Gleixner
2025-09-08 21:32 ` [patch V4 36/36] rseq: Switch to TIF_RSEQ if supported Thomas Gleixner
2025-09-10 13:55 ` [patch V4 00/36] rseq: Optimize exit to user space Jens Axboe
2025-09-10 14:45 ` Michael Jeanson
2025-09-10 15:34 ` Jens Axboe
2025-09-10 14:54 ` Thomas Gleixner
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