From: David Howells <dhowells@redhat.com>
To: Amerigo Wang <amwang@redhat.com>
Cc: dhowells@redhat.com, linux-kernel@vger.kernel.org,
Brian Behlendorf <behlendorf1@llnl.gov>,
Ben Woodard <bwoodard@llnl.gov>, Stable Team <stable@kernel.org>,
akpm@linux-foundation.org
Subject: Re: [Patch v2] rwsem: fix rwsem_is_locked() bugs
Date: Tue, 06 Oct 2009 08:18:09 +0100 [thread overview]
Message-ID: <9987.1254813489@redhat.com> (raw)
In-Reply-To: <4ACAEB6D.2020601@redhat.com>
Amerigo Wang <amwang@redhat.com> wrote:
> Since if we have locks, we don't need memory barriers any more, right?
Indeed - locks are implicit memory barriers.
David
prev parent reply other threads:[~2009-10-06 7:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-05 6:36 [Patch v2] rwsem: fix rwsem_is_locked() bugs Amerigo Wang
2009-10-05 13:13 ` David Howells
2009-10-06 7:02 ` Amerigo Wang
2009-10-06 7:18 ` David Howells [this message]
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