From: Andreas Schwab <schwab@suse.de>
To: Stefan Liebler <stli@linux.vnet.ibm.com>
Cc: libc-alpha@sourceware.org
Subject: Re: [PATCH 1/2] Optimize generic spinlock code and use C11 like atomic macros.
Date: Mon, 10 Apr 2017 13:36:00 -0000 [thread overview]
Message-ID: <mvmefx0crkq.fsf@suse.de> (raw)
In-Reply-To: <97d9d43a-0bf1-7e93-6985-97d603c96844@linux.vnet.ibm.com> (Stefan Liebler's message of "Mon, 10 Apr 2017 13:59:58 +0200")
On Apr 10 2017, Stefan Liebler <stli@linux.vnet.ibm.com> wrote:
> On 04/10/2017 10:17 AM, Andreas Schwab wrote:
>> On Apr 07 2017, Stefan Liebler <stli@linux.vnet.ibm.com> wrote:
>>
>>> /* ATOMIC_EXCHANGE_USES_CAS is equal to 1 if atomic_exchange operations
>>
>> Why 1 exactly, and not just non-zero?
>>
>> Andreas.
>>
>
> This points out that there is only a true/false choice and
> all architectures have to define it.
That doesn't answer my question. Why do you need the dance of checking
for 1 explicitly?
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
next prev parent reply other threads:[~2017-04-10 13:36 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-16 16:32 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 ` [PATCH 1/2] [PING] " Stefan Liebler
2017-05-10 13:00 ` 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 [this message]
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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