From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Boqun Feng <boqun.feng@gmail.com>,
Andy Lutomirski <luto@amacapital.net>,
Dave Watson <davejwatson@fb.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-api <linux-api@vger.kernel.org>,
Paul Turner <pjt@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Russell King <linux@arm.linux.org.uk>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Andrew Hunter <ahh@google.com>, Andi Kleen <andi@firstfloor.org>,
Chris Lameter <cl@linux.com>, Ben Maurer <bmaurer@fb.com>,
rostedt <rostedt@goodmis.org>,
Josh Triplett <josh@joshtriplett.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [RFC PATCH v11 for 4.15 01/24] Restartable sequences system call
Date: Thu, 16 Nov 2017 16:27:07 +0000 (UTC) [thread overview]
Message-ID: <438349693.16595.1510849627973.JavaMail.zimbra@efficios.com> (raw)
In-Reply-To: <20171116161815.dg4hi2z35rkh4u4s@hirez.programming.kicks-ass.net>
----- On Nov 16, 2017, at 11:18 AM, Peter Zijlstra peterz@infradead.org wrote:
> On Tue, Nov 14, 2017 at 03:03:51PM -0500, Mathieu Desnoyers wrote:
>> @@ -977,6 +978,13 @@ struct task_struct {
>> unsigned long numa_pages_migrated;
>> #endif /* CONFIG_NUMA_BALANCING */
>>
>> +#ifdef CONFIG_RSEQ
>> + struct rseq __user *rseq;
>> + u32 rseq_len;
>> + u32 rseq_sig;
>> + bool rseq_preempt, rseq_signal, rseq_migrate;
>
> No bool please. Use something that has a defined size in ILP32/LP64.
> _Bool makes it absolutely impossible to speculate on structure layout
> across architectures.
I should as well make all those a bitmask within a "u32 rseq_event_mask" then,
sounds fair ?
Thanks,
Mathieu
>
>> +#endif
>> +
>> struct tlbflush_unmap_batch tlb_ubc;
>>
> > struct rcu_head rcu;
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
next prev parent reply other threads:[~2017-11-16 16:26 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-14 20:03 [RFC PATCH for 4.15 00/24] Restartable sequences and CPU op vector v11 Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH v11 for 4.15 01/24] Restartable sequences system call Mathieu Desnoyers
2017-11-14 20:39 ` Ben Maurer
2017-11-14 20:52 ` Mathieu Desnoyers
2017-11-14 21:48 ` Ben Maurer
[not found] ` <CY4PR15MB168884529B3C0F8E6CC06257CF280@CY4PR15MB1688.namprd15.prod.outlook.com>
2017-11-14 20:49 ` Ben Maurer
2017-11-14 21:03 ` Mathieu Desnoyers
2017-11-16 16:18 ` Peter Zijlstra
2017-11-16 16:27 ` Mathieu Desnoyers [this message]
2017-11-16 16:32 ` Peter Zijlstra
2017-11-16 17:09 ` Mathieu Desnoyers
2017-11-16 18:43 ` Peter Zijlstra
2017-11-16 18:49 ` Mathieu Desnoyers
2017-11-16 19:06 ` Thomas Gleixner
2017-11-16 20:06 ` Mathieu Desnoyers
2017-11-16 19:14 ` Peter Zijlstra
2017-11-16 20:37 ` Mathieu Desnoyers
2017-11-16 20:46 ` Peter Zijlstra
2017-11-16 21:08 ` Thomas Gleixner
2017-11-19 17:24 ` Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH for 4.15 02/24] Restartable sequences: ARM 32 architecture support Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH for 4.15 03/24] Restartable sequences: wire up ARM 32 system call Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH for 4.15 04/24] Restartable sequences: x86 32/64 architecture support Mathieu Desnoyers
2017-11-16 21:14 ` Thomas Gleixner
2017-11-19 17:41 ` Mathieu Desnoyers
2017-11-20 8:38 ` Thomas Gleixner
2017-11-14 20:03 ` [RFC PATCH for 4.15 05/24] Restartable sequences: wire up x86 32/64 system call Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH for 4.15 06/24] Restartable sequences: powerpc architecture support Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH for 4.15 07/24] Restartable sequences: Wire up powerpc system call Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH v3 for 4.15 08/24] Provide cpu_opv " Mathieu Desnoyers
2017-11-15 1:34 ` Mathieu Desnoyers
2017-11-15 7:44 ` Michael Kerrisk (man-pages)
2017-11-15 14:30 ` Mathieu Desnoyers
2017-11-16 23:26 ` Thomas Gleixner
2017-11-17 0:14 ` Andi Kleen
2017-11-17 10:09 ` Thomas Gleixner
2017-11-17 17:14 ` Mathieu Desnoyers
2017-11-17 18:18 ` Andi Kleen
2017-11-17 18:59 ` Thomas Gleixner
2017-11-17 19:15 ` Andi Kleen
2017-11-17 20:07 ` Thomas Gleixner
2017-11-18 21:09 ` Andy Lutomirski
2017-11-17 20:22 ` Thomas Gleixner
2017-11-20 17:13 ` Mathieu Desnoyers
2017-11-20 16:13 ` Mathieu Desnoyers
2017-11-20 17:48 ` Thomas Gleixner
2017-11-20 18:03 ` Thomas Gleixner
2017-11-20 18:42 ` Mathieu Desnoyers
2017-11-20 18:39 ` Mathieu Desnoyers
2017-11-20 18:49 ` Andi Kleen
2017-11-20 22:46 ` Mathieu Desnoyers
2017-11-20 19:44 ` Thomas Gleixner
2017-11-21 11:25 ` Mathieu Desnoyers
2017-11-14 20:03 ` [RFC PATCH for 4.15 09/24] cpu_opv: Wire up x86 32/64 " Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 10/24] cpu_opv: Wire up powerpc " Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 11/24] cpu_opv: Wire up ARM32 " Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v2 for 4.15 12/24] cpu_opv: Implement selftests Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v2 for 4.15 13/24] Restartable sequences: Provide self-tests Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 14/24] Restartable sequences selftests: arm: workaround gcc asm size guess Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v2 for 4.15 15/24] membarrier: selftest: Test private expedited cmd Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v7 for 4.15 16/24] membarrier: powerpc: Skip memory barrier in switch_mm() Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v5 for 4.15 17/24] membarrier: Document scheduler barrier requirements Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 18/24] membarrier: provide SHARED_EXPEDITED command Mathieu Desnoyers
2017-11-15 1:36 ` Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 19/24] membarrier: selftest: Test shared expedited cmd Mathieu Desnoyers
2017-11-17 15:07 ` Shuah Khan
2017-11-14 20:04 ` [RFC PATCH for 4.15 20/24] membarrier: Provide core serializing command Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v2 for 4.15 21/24] x86: Introduce sync_core_before_usermode Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH v2 for 4.15 22/24] membarrier: x86: Provide core serializing command Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 23/24] membarrier: selftest: Test private expedited sync core cmd Mathieu Desnoyers
2017-11-17 15:09 ` Shuah Khan
2017-11-17 16:17 ` Mathieu Desnoyers
2017-11-14 20:04 ` [RFC PATCH for 4.15 24/24] membarrier: arm64: Provide core serializing command Mathieu Desnoyers
2017-11-14 21:08 ` [RFC PATCH for 4.15 00/24] Restartable sequences and CPU op vector v11 Linus Torvalds
2017-11-14 21:15 ` Andy Lutomirski
2017-11-14 21:32 ` Paul Turner
2018-03-27 18:15 ` Mathieu Desnoyers
2017-11-14 21:32 ` Mathieu Desnoyers
2017-11-15 4:12 ` Andy Lutomirski
2017-11-15 6:34 ` Mathieu Desnoyers
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