From: steve.capper@linaro.org (Steve Capper)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATH V2 4/6] arm: mm: Enable RCU fast_gup
Date: Wed, 27 Aug 2014 14:01:08 +0100 [thread overview]
Message-ID: <20140827130107.GA8210@linaro.org> (raw)
In-Reply-To: <20140827115137.GK6968@arm.com>
On Wed, Aug 27, 2014 at 12:51:37PM +0100, Catalin Marinas wrote:
> On Thu, Aug 21, 2014 at 04:43:30PM +0100, Steve Capper wrote:
> > Activate the RCU fast_gup for ARM. We also need to force THP splits to
> > broadcast an IPI s.t. we block in the fast_gup page walker. As THP
> > splits are comparatively rare, this should not lead to a noticeable
> > performance degradation.
> >
> > Some pre-requisite functions pud_write and pud_page are also added.
> >
> > Signed-off-by: Steve Capper <steve.capper@linaro.org>
>
> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Thanks.
next prev parent reply other threads:[~2014-08-27 13:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-21 15:43 [PATH V2 0/6] RCU get_user_pages_fast and __get_user_pages_fast Steve Capper
2014-08-21 15:43 ` [PATH V2 1/6] mm: Introduce a general RCU get_user_pages_fast Steve Capper
2014-08-27 8:54 ` Will Deacon
2014-08-27 12:50 ` Steve Capper
2014-08-27 13:14 ` Will Deacon
2014-08-27 14:28 ` Catalin Marinas
2014-08-27 14:42 ` Steve Capper
2014-08-27 15:01 ` Russell King - ARM Linux
2014-08-28 8:59 ` Steve Capper
2014-08-21 15:43 ` [PATH V2 2/6] arm: mm: Introduce special ptes for LPAE Steve Capper
2014-08-27 10:46 ` Catalin Marinas
2014-08-27 12:52 ` Steve Capper
2014-08-21 15:43 ` [PATH V2 3/6] arm: mm: Enable HAVE_RCU_TABLE_FREE logic Steve Capper
2014-08-27 11:50 ` Catalin Marinas
2014-08-27 12:59 ` Steve Capper
2014-08-21 15:43 ` [PATH V2 4/6] arm: mm: Enable RCU fast_gup Steve Capper
2014-08-27 11:51 ` Catalin Marinas
2014-08-27 13:01 ` Steve Capper [this message]
2014-08-21 15:43 ` [PATH V2 5/6] arm64: mm: Enable HAVE_RCU_TABLE_FREE logic Steve Capper
2014-08-27 10:48 ` Catalin Marinas
2014-08-27 13:08 ` Steve Capper
2014-08-21 15:43 ` [PATH V2 6/6] arm64: mm: Enable RCU fast_gup Steve Capper
2014-08-27 11:09 ` Catalin Marinas
2014-08-27 13:43 ` Steve Capper
2014-08-21 20:42 ` [PATH V2 0/6] RCU get_user_pages_fast and __get_user_pages_fast Dann Frazier
2014-08-22 8:11 ` Steve Capper
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