From: "David S. Miller" <davem@redhat.com>
To: torvalds@transmeta.com
Cc: wrose@loislaw.com, linux-kernel@vger.kernel.org
Subject: Re: Segfault hidden in list.h
Date: Sun, 12 May 2002 17:50:21 -0700 (PDT) [thread overview]
Message-ID: <20020512.175021.50367158.davem@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0205121750530.15392-100000@home.transmeta.com>
From: Linus Torvalds <torvalds@transmeta.com>
Date: Sun, 12 May 2002 17:59:27 -0700 (PDT)
If the coder doesn't lock his data structures, it doesn't matter _what_
order we execute the list modifications in - different architectures will
do different thing with inter-CPU memory ordering, and trying to order
memory accesses on a source level is futile.
However, if the list manipulation had some memory barriers
added to it...
The people doing the lockless reader RCU stuff could benefit from such
an interface.
next prev parent reply other threads:[~2002-05-13 1:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-13 0:37 Segfault hidden in list.h Rose, Billy
2002-05-13 0:59 ` Linus Torvalds
2002-05-13 0:50 ` David S. Miller [this message]
2002-05-13 1:08 ` Linus Torvalds
2002-05-13 2:08 ` David S. Miller
-- strict thread matches above, loose matches on Subject: below --
2002-05-13 1:02 Rose, Billy
2002-05-13 1:34 ` Davide Libenzi
2002-05-13 1:10 Rose, Billy
2002-05-13 2:17 Rose, Billy
2002-05-13 6:33 Dipankar Sarma
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