From: Stefan Liebler <stli@linux.vnet.ibm.com>
To: libc-alpha@sourceware.org
Subject: Re: [PATCH 1/2] [PING] Optimize generic spinlock code and use C11 like atomic macros.
Date: Wed, 03 May 2017 11:38:00 -0000 [thread overview]
Message-ID: <b6339fef-a7bd-8b40-c73f-99d0f21731f6@linux.vnet.ibm.com> (raw)
In-Reply-To: <2607f4f9-768e-e1e6-2e2e-17696991813d@linux.vnet.ibm.com>
On 04/25/2017 08:46 AM, Stefan Liebler wrote:
> On 04/18/2017 03:09 PM, Stefan Liebler wrote:
>> On 04/10/2017 01:59 PM, Stefan Liebler wrote:
>>> On 04/09/2017 03:51 PM, Torvald Riegel wrote:
>>>> On Fri, 2017-04-07 at 18:22 +0200, Stefan Liebler wrote:
>>>>> @architecture maintainers:
>>>>> I've added defines of ATOMIC_EXCHANGE_USES_CAS in the architecture
>>>>> specific atomic-machine.h files.
>>>>> See comment in include/atomic.h:
>>>>> /* ATOMIC_EXCHANGE_USES_CAS is equal to 1 if atomic_exchange
>>>>> operations
>>>>> are implemented based on a CAS loop; otherwise, this is 0 and we
>>>>> assume
>>>>> that the atomic_exchange operations could provide better
>>>>> performance
>>>>> than a CAS loop. */
>>>>>
>>>>> Can review the definition to 0 or 1 in the atomic-machine.h file of
>>>>> your
>>>>> architecture, please?
>>
>>
>> PING
>>
> PING
PING
>>
>>>>
>>>> I think we primarily need feedback from the maintainers of the
>>>> architectures where we're not quite sure. Let's see how responsive
>>>> everyone is and then decide whether we need to continue pinging some of
>>>> them potentially or whether we have enough information to be able to
>>>> commit the patch.
>>>>
>>> Okay.
>>>
>>> Chris has already replied directly to me.
>>> On 04/07/2017 06:50 PM, Chris Metcalf wrote:
>>>> Thanks, looks good for tilegx/tilepro.
>>>
> Andreas has answered regarding the explicit check of
> ATOMIC_EXCHANGE_USES_CAS in include/atomic.h.
> @Andreas: is m68k okay?
>
> Joseph has replied for mips.
>
> What about the other architectures? Is the definition of
> ATOMIC_EXCHANGE_USES_CAS correct?
>
>>> Bye
>>> Stefan
>>>
>>
>
next prev parent reply other threads:[~2017-05-03 11:38 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-16 16:32 [PATCH 1/2] " Stefan Liebler
2016-12-16 16:32 ` [PATCH 2/2] S390: Use generic spinlock code Stefan Liebler
2017-02-08 14:49 ` Stefan Liebler
2017-02-13 20:39 ` Torvald Riegel
2017-02-15 16:26 ` Stefan Liebler
2017-02-18 17:05 ` Torvald Riegel
2017-03-14 15:55 ` Stefan Liebler
2017-03-21 15:43 ` Stefan Liebler
2017-04-06 12:27 ` Torvald Riegel
2016-12-19 12:14 ` [PATCH 1/2] Optimize generic spinlock code and use C11 like atomic macros Szabolcs Nagy
2017-02-08 14:49 ` Stefan Liebler
2017-02-13 20:29 ` Torvald Riegel
2017-02-15 9:36 ` Stefan Liebler
2017-02-18 16:57 ` Torvald Riegel
2017-02-19 9:20 ` Florian Weimer
2017-02-20 13:11 ` Torvald Riegel
2017-02-26 7:55 ` Florian Weimer
2017-02-26 20:06 ` Torvald Riegel
2017-02-26 20:29 ` Florian Weimer
2017-02-26 20:35 ` Torvald Riegel
2017-02-27 17:57 ` Szabolcs Nagy
2017-02-28 7:15 ` Torvald Riegel
2017-03-14 15:55 ` Stefan Liebler
2017-02-20 12:15 ` Stefan Liebler
2017-02-20 13:51 ` Torvald Riegel
2017-03-14 15:55 ` Stefan Liebler
2017-03-21 15:43 ` Stefan Liebler
2017-03-22 12:56 ` Szabolcs Nagy
2017-03-23 16:16 ` Stefan Liebler
2017-03-23 17:52 ` Szabolcs Nagy
2017-04-06 12:04 ` Torvald Riegel
2017-03-27 13:08 ` Stefan Liebler
2017-04-04 10:29 ` [PING] " Stefan Liebler
2017-03-29 14:16 ` Stefan Liebler
2017-04-06 14:00 ` Torvald Riegel
2017-04-07 16:23 ` Stefan Liebler
2017-04-09 13:51 ` Torvald Riegel
2017-04-10 12:00 ` Stefan Liebler
2017-04-18 13:09 ` Stefan Liebler
2017-04-25 6:47 ` Stefan Liebler
2017-05-03 11:38 ` Stefan Liebler [this message]
2017-05-10 13:00 ` [PATCH 1/2] [PING] " Stefan Liebler
2017-05-17 13:09 ` Stefan Liebler
2017-05-24 6:37 ` Stefan Liebler
2017-05-30 7:18 ` Torvald Riegel
2017-05-31 8:29 ` Stefan Liebler
2017-05-31 16:48 ` Torvald Riegel
2017-06-01 13:40 ` Joseph Myers
2017-06-01 14:33 ` Torvald Riegel
2017-06-06 7:51 ` [PATCH 1/2] [COMMITTED] " Stefan Liebler
2017-04-10 8:17 ` [PATCH 1/2] " Andreas Schwab
2017-04-10 12:00 ` Stefan Liebler
2017-04-10 13:36 ` Andreas Schwab
2017-04-11 7:06 ` Stefan Liebler
2017-04-11 8:45 ` Andreas Schwab
2017-04-11 10:15 ` Stefan Liebler
2017-04-11 12:05 ` Andreas Schwab
2017-04-11 12:19 ` Stefan Liebler
2017-04-11 13:08 ` Zack Weinberg
2017-04-13 16:36 ` Torvald Riegel
2017-05-30 21:00 ` Tulio Magno Quites Machado Filho
2017-04-18 21:17 ` Joseph Myers
2017-04-19 8:27 ` Stefan Liebler
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