From: Tom Zanussi <zanussi@comcast.net>
To: Greg KH <greg@kroah.com>
Cc: Karim Yaghmour <karim@opersys.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
LTT-Dev <ltt-dev@shafik.org>
Subject: Re: [PATCH 4/4] relayfs for 2.6.10: headers
Date: Fri, 14 Jan 2005 14:14:39 -0600 [thread overview]
Message-ID: <41E8282F.8060208@comcast.net> (raw)
In-Reply-To: <20050114191013.GB15337@kroah.com>
Greg KH wrote:
> On Thu, Jan 13, 2005 at 10:04:36PM -0500, Karim Yaghmour wrote:
>
>>+/**
>>+ * have_cmpxchg - does this architecture have a cmpxchg?
>>+ *
>>+ * Returns 1 if this architecture has a cmpxchg useable by
>>+ * the lockless scheme, 0 otherwise.
>>+ */
>>+static inline int
>>+have_cmpxchg(void)
>>+{
>>+#if defined(__HAVE_ARCH_CMPXCHG)
>>+ return 1;
>>+#else
>>+ return 0;
>>+#endif
>>+}
>
>
> Shouldn't this be a build time check, and not a runtime one?
>
This was to avoid having an ifdef in the main body of the code. It's
only used in channel setup, so I did'nt worrry about runtime checking.
Thanks,
Tom
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next prev parent reply other threads:[~2005-01-14 20:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-14 3:04 [PATCH 4/4] relayfs for 2.6.10: headers Karim Yaghmour
2005-01-14 19:07 ` Greg KH
2005-01-14 20:05 ` Tom Zanussi
2005-01-14 19:10 ` Greg KH
2005-01-14 20:14 ` Tom Zanussi [this message]
2005-01-15 0:50 ` Greg KH
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