From: Ralf Baechle <ralf@linux-mips.org>
To: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Subject: Re: [PATCH 1/2] MIPS: New macro smp_mb__before_llsc.
Date: Wed, 13 Jan 2010 13:32:58 +0100 [thread overview]
Message-ID: <20100113123258.GA20354@linux-mips.org> (raw)
In-Reply-To: <1262999864-2353-1-git-send-email-ddaney@caviumnetworks.com>
On Fri, Jan 08, 2010 at 05:17:43PM -0800, David Daney wrote:
> Replace some instances of smp_llsc_mb() with a new macro
> smp_mb__before_llsc(). It is used before ll/sc sequences that are
> documented as needing write barrier semantics.
>
> The default implementation of smp_mb__before_llsc() is just
> smp_llsc_mb(), so there are no changes in semantics.
>
> Also simplify definition of smp_mb(), smp_rmb(), and smp_wmb() to be
> just barrier() in the non-SMP case.
Queued for 2.6.34. Thanks!
Ralf
next prev parent reply other threads:[~2010-01-13 12:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-09 1:16 [PATCH 0/2] Rearrange MIPS barriers and optimize for Octeon David Daney
2010-01-09 1:17 ` [PATCH 1/2] MIPS: New macro smp_mb__before_llsc David Daney
2010-01-13 12:32 ` Ralf Baechle [this message]
2010-01-09 1:17 ` [PATCH 2/2] MIPS: Octeon: Use optimized memory barrier primitives David Daney
2010-01-13 12:33 ` Ralf Baechle
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