From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Daniel Walker <dwalker@mvista.com>
Cc: mingo@elte.hu, mingo@redhat.com, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH -rt 1/8] introduce PICK_FUNCTION
Date: Wed, 29 Aug 2007 09:44:22 +1000 [thread overview]
Message-ID: <46D4B356.7060604@yahoo.com.au> (raw)
In-Reply-To: <20070828213748.790253419@mvista.com>
Daniel Walker wrote:
> PICK_FUNCTION() is similar to the other PICK_OP style macros, and was
> created to replace them all. I used variable argument macros to handle
> PICK_FUNC_2ARG/PICK_FUNC_1ARG. Otherwise the marcos are similar to the
> original macros used for semaphores. The entire system is used to do a
> compile time switch between two different locking APIs. For example,
> real spinlocks (raw_spinlock_t) and mutexes (or sleeping spinlocks).
>
> This new macro replaces all the duplication from lock type to lock type.
> The result of this patch, and the next two, is a fairly nice simplification,
> and consolidation. Although the seqlock changes are larger than the originals
> I think over all the patchset is worth while.
>
> Incorporated peterz's suggestion to not require TYPE_EQUAL() to only
> use pointers.
How come this is cc'ed to lkml? Is it something that is relevant to
the mainline kernel... or?
--
SUSE Labs, Novell Inc.
next prev parent reply other threads:[~2007-08-28 23:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-28 21:37 [PATCH -rt 1/8] introduce PICK_FUNCTION Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 2/8] spinlocks/rwlocks: use PICK_FUNCTION() Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 3/8] seqlocks: use PICK_FUNCTION Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 4/8] fork: desched_thread comment rework Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 5/8] latency tracing: use now() consistently Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 6/8] preempt_max_latency in all modes Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 7/8] latency hist: add resetting for all timing options Daniel Walker
2007-08-28 21:37 ` [PATCH -rt 8/8] stop critical timing in idle Daniel Walker
2007-08-28 23:44 ` Nick Piggin [this message]
2007-08-28 23:54 ` [PATCH -rt 1/8] introduce PICK_FUNCTION Daniel Walker
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