From: "David S. Miller" <davem@redhat.com>
To: green@namesys.com
Cc: zaitcev@redhat.com, mingo@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: cmpxchg in 2.5.38
Date: Wed, 25 Sep 2002 00:47:19 -0700 (PDT) [thread overview]
Message-ID: <20020925.004719.61852840.davem@redhat.com> (raw)
In-Reply-To: <20020925111820.A23225@namesys.com>
From: Oleg Drokin <green@namesys.com>
Date: Wed, 25 Sep 2002 11:18:20 +0400
Ingo said that arches that cannot do cmpxchg in hardware should
provide spinlock-based version.
That doesn't make any sense.
If cmpxchg cannot work with user bits of memory, like
cmpxchg is supposed to, it's really a crutch more than
anything else.
F.e. people will think that such systems can support DRM
correctly, they absolutely cannot.
next prev parent reply other threads:[~2002-09-25 7:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-25 5:00 cmpxchg in 2.5.38 Pete Zaitcev
2002-09-25 4:54 ` David S. Miller
2002-09-25 7:18 ` Oleg Drokin
2002-09-25 7:47 ` David S. Miller [this message]
2002-09-25 8:07 ` Oleg Drokin
2002-09-25 8:26 ` Ingo Molnar
2002-09-25 8:48 ` [patch] pidhash-2.5.38-A0 Ingo Molnar
2002-09-25 12:04 ` cmpxchg in 2.5.38 Geert Uytterhoeven
2002-09-25 17:42 ` Pete Zaitcev
2002-09-25 19:34 ` Ingo Molnar
2002-09-25 20:03 ` David S. Miller
2002-09-25 18:59 ` David S. Miller
2002-09-25 19:02 ` David S. Miller
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