From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/4] atomic_cmpxchg and friends
Date: Sun, 25 Sep 2005 22:09:31 +0100 [thread overview]
Message-ID: <1127682571.1168.25.camel@localhost.localdomain> (raw)
In-Reply-To: <4334BCF3.1010908@yahoo.com.au>
+#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old,
new))
+
Not all X86 has cmpxchg so the code there won't compile for all cases.
next prev parent reply other threads:[~2005-09-25 20:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-24 2:41 [PATCH 1/4] atomic_cmpxchg and friends Nick Piggin
2005-09-24 2:45 ` [PATCH 2/4] atomic_inc_not_zero Nick Piggin
2005-09-24 2:47 ` [PATCH 3/4] convert rcuref Nick Piggin
2005-09-24 2:56 ` [PATCH 4/4] convert dec_and_lock Nick Piggin
2005-09-24 2:57 ` [PATCH 2/4] atomic_inc_not_zero Nick Piggin
2005-09-25 21:09 ` Alan Cox [this message]
2005-09-26 1:07 ` [PATCH 1/4] atomic_cmpxchg and friends Nick Piggin
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