[PATCH] Skip unnecessary pte makeup when clearing it.

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Fri Feb 3 01:54:32 EST 2012


On Mon, Jan 30, 2012 at 04:36:07PM +0800, bill4carson at gmail.com wrote:
> From: Bill Carson <bill4carson at gmail.com>
> If we are only about to clear a hardware pte entry, then pte makeup code is
> unnecessary for cpu_v7_set_pte_ext and armv6_set_pte_ext, so just skip it.
> Signed-off-by: Bill Carson <bill4carson at gmail.com>
I havn't tested and I don't know if the patch brings any advantages like
increased speed. But AFAICT it doesn't change the behaviour of
armv6_set_pte_ext and cpu_v7_set_pte_ext.

Best regards

Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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