From: Ralf Baechle <ralf@linux-mips.org>
To: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Subject: Re: [PATCH] kernel/process.c: R3000 setup for kernel_thread()
Date: Tue, 18 Sep 2007 19:05:21 +0100 [thread overview]
Message-ID: <20070918180521.GA16191@linux-mips.org> (raw)
In-Reply-To: <Pine.LNX.4.64N.0709181834420.18665@blysk.ds.pg.gda.pl>
On Tue, Sep 18, 2007 at 06:49:08PM +0100, Maciej W. Rozycki wrote:
> Match the R4000 semantics for the initial state of interrupt/kernel
> status register flags for the R3000 in kernel_thread().
>
> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
> ---
> The R4000 variation preserves the interrupt/kernel status flags; the
> R3000 assumes a certain state. It may not matter, at least at the current
> state of the code, but for consistency I think the R3000 variation should
> do the same as the R4000 one, first for purity and second because there is
> less maintenance force available for the R3000 and any discrepancy between
> the two variations means a greater chance for subtle bugs. The
> performance hit is negligible.
Since it doesn't seem to bite I queued this for 2.6.24. Thanks,
Ralf
prev parent reply other threads:[~2007-09-18 18:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-18 17:49 [PATCH] kernel/process.c: R3000 setup for kernel_thread() Maciej W. Rozycki
2007-09-18 18:05 ` Ralf Baechle [this message]
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