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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
	boqun.feng@gmail.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-api@vger.kernel.org, tglx@linutronix.de,
	luto@amacapital.net, davejwatson@fb.com, pjt@google.com,
	Andrew Morton <akpm@linux-foundation.org>,
	linux@arm.linux.org.uk, Ingo Molnar <mingo@redhat.com>,
	Peter Anvin <hpa@zytor.com>,
	andi@firstfloor.org, Christoph Lameter <cl@linux.com>,
	bmaurer@fb.com, rostedt@goodmis.org, josh@joshtriplett.org,
	Catalin Marinas <catalin.marinas@arm.com>,
	will.deacon@arm.com, mtk.manpages@gmail.com, joelaf@google.com
Subject: Re: [RFC PATCH for 4.21 00/16] rseq updates, new cpu_opv system call (v2)
Date: Thu, 1 Nov 2018 08:33:35 -0700
Message-ID: <CAHk-=wjk-2c4XvWjdzc-bs9Hbgvy-p7ASSnKKphggr5qDoXRDQ@mail.gmail.com> (raw)
In-Reply-To: <20181101095844.24462-1-mathieu.desnoyers@efficios.com>

On Thu, Nov 1, 2018 at 2:59 AM Mathieu Desnoyers
<mathieu.desnoyers@efficios.com> wrote:
>
> Here is an updated patchset submitted as RFC for 4.21 (next merge
> window).

So I'm not willing to take the cpu_opv system call until I see the the
regular rseq code getting more real-life use.

Maybe people are using it. Maybe they aren't. I want to hold off and
wait until we _know_ it's getting used, and not just in test
libraries.

                   Linus

      parent reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-01  9:58 Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 01/16] rseq/selftests: Expose reference counter to coexist with glibc (v2) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 02/16] rseq/selftests: Adapt number of threads to the number of detected cpus Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 03/16] mm: Replace BUG_ON() by WARN_ON() in vm_unmap_ram() Mathieu Desnoyers
2018-11-01 12:21   ` Thomas Gleixner
2018-11-01 18:46     ` Steven Rostedt
2018-11-01 19:57       ` Mathieu Desnoyers
2018-11-01 22:00         ` Linus Torvalds
2018-11-01 22:17           ` Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 04/16] mm: Introduce vm_map_user_ram, vm_unmap_user_ram (v2) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 05/16] mm: Provide is_vma_noncached Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 06/16] cpu_opv: Provide cpu_opv system call (v9) Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 07/16] cpu_opv: limit amount of virtual address space used by cpu_opv Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 08/16] x86: Wire up cpu_opv system call Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 09/16] powerpc: " Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 10/16] arm: " Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 11/16] cpu-opv/selftests: Provide cpu-op library Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 12/16] cpu-opv/selftests: Provide basic test Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 13/16] cpu-opv/selftests: Provide percpu_op API Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 14/16] cpu-opv/selftests: Provide basic percpu ops test Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 15/16] cpu-opv/selftests: Provide parametrized tests Mathieu Desnoyers
2018-11-01  9:58 ` [RFC PATCH for 4.21 16/16] cpu-opv/selftests: Provide Makefile, scripts, gitignore Mathieu Desnoyers
2018-11-01 15:33 ` Linus Torvalds [this message]

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