From: Catalin Marinas <catalin.marinas@arm.com>
To: Christoph Lameter <cl@linux.com>
Cc: Tejun Heo <tj@kernel.org>,
"akpm@linuxfoundation.org" <akpm@linuxfoundation.org>,
Russell King <linux@arm.linux.org.uk>,
Will Deacon <Will.Deacon@arm.com>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
Steven Rostedt <srostedt@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [guv v2 22/31] arm: Replace __get_cpu_var uses
Date: Tue, 27 Aug 2013 10:41:43 +0100 [thread overview]
Message-ID: <20130827094143.GC19897@arm.com> (raw)
In-Reply-To: <00000140bc5f3c35-f4075639-884b-4ae3-b7bd-d945b44d7cf5-000000@email.amazonses.com>
On Mon, Aug 26, 2013 at 09:44:52PM +0100, Christoph Lameter wrote:
> This patch converts __get_cpu_var into either and explicit address calculation using this_cpu_ptr()
> or into a use of this_cpu operations that use the offset. Thereby address calcualtions are avoided
> and less registers are used when code is generated.
...
> Index: linux/arch/arm64/kernel/debug-monitors.c
> ===================================================================
> --- linux.orig/arch/arm64/kernel/debug-monitors.c 2013-08-26 13:48:40.956794980 -0500
> +++ linux/arch/arm64/kernel/debug-monitors.c 2013-08-26 13:48:40.952795024 -0500
...
> Index: linux/arch/arm64/kernel/hw_breakpoint.c
> ===================================================================
> --- linux.orig/arch/arm64/kernel/hw_breakpoint.c 2013-08-26 13:48:40.956794980 -0500
> +++ linux/arch/arm64/kernel/hw_breakpoint.c 2013-08-26 13:48:40.952795024 -0500
...
> Index: linux/arch/arm64/kernel/perf_event.c
> ===================================================================
> --- linux.orig/arch/arm64/kernel/perf_event.c 2013-08-26 13:48:40.956794980 -0500
> +++ linux/arch/arm64/kernel/perf_event.c 2013-08-26 13:48:40.952795024 -0500
For the arm64 bits:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2013-08-27 9:42 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130826204351.725357339@linux.com>
2013-08-26 20:44 ` [guv v2 02/31] percpu: Make __verify_pcu_ptr handle per cpu pointers to arrays Christoph Lameter
2013-08-26 20:44 ` [guv v2 03/31] Coccinelle script for __get_cpu_var conversion Christoph Lameter
2013-08-26 20:44 ` [guv v2 04/31] net: Replace __get_cpu_var uses Christoph Lameter
2013-08-26 20:44 ` [guv v2 05/31] time: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 06/31] scheduler: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 08/31] tracing: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-28 19:48 ` Steven Rostedt
2013-08-29 3:44 ` Masami Hiramatsu
2013-08-29 3:44 ` Masami Hiramatsu
2013-08-29 16:35 ` Christoph Lameter
2013-08-30 7:00 ` Ingo Molnar
2013-08-26 20:44 ` [guv v2 09/31] block: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 10/31] rcu: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 07/31] mm: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 11/31] percpu: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 14/31] drivers: " Christoph Lameter
2013-08-26 20:44 ` [guv v2 12/31] watchdog: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 13/31] kernel misc: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 15/31] zcache/zsmalloc: " Christoph Lameter
2013-08-26 20:44 ` [guv v2 17/31] mips: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 16/31] x86: " Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 18/31] s390: " Christoph Lameter
2013-08-28 6:27 ` Heiko Carstens
2013-08-26 20:44 ` [guv v2 01/31] x86: Use this_cpu_inc/dec for debug registers Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 19/31] ia64: Replace __get_cpu_var uses Christoph Lameter
2013-08-26 20:44 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 20/31] powerpc: " Christoph Lameter
2013-08-27 8:44 ` Geert Uytterhoeven
2013-08-27 8:44 ` Geert Uytterhoeven
2013-08-27 15:37 ` Christoph Lameter
2013-08-26 20:44 ` [guv v2 21/31] sparc: " Christoph Lameter
2013-08-26 20:44 ` [guv v2 22/31] arm: " Christoph Lameter
2013-08-27 9:41 ` Catalin Marinas [this message]
2013-08-26 20:56 ` [guv v2 25/31] avr32: " Christoph Lameter
2013-08-27 6:58 ` Hans-Christian Egtvedt
2013-08-27 6:58 ` Hans-Christian Egtvedt
2013-08-26 20:56 ` [guv v2 29/31] parisc: " Christoph Lameter
2013-08-26 20:56 ` [guv v2 23/31] tile: " Christoph Lameter
2013-08-26 20:56 ` Christoph Lameter
2013-08-26 22:22 ` Chris Metcalf
2013-08-27 14:48 ` Christoph Lameter
2013-08-28 17:19 ` Chris Metcalf
2013-08-28 17:54 ` Christoph Lameter
2013-08-28 18:13 ` Chris Metcalf
2013-08-28 18:22 ` Christoph Lameter
2013-08-30 16:01 ` Chris Metcalf
2013-08-26 21:16 ` [guv v2 31/31] Remove __get_cpu_var and __raw_get_cpu_var macros Christoph Lameter
2013-08-26 21:16 ` [guv v2 24/31] blackfin: Replace __get_cpu_var uses Christoph Lameter
2013-08-26 21:16 ` [guv v2 26/31] alpha: Replace __get_cpu_var Christoph Lameter
2013-08-26 21:16 ` Christoph Lameter
2013-08-26 21:56 ` [guv v2 30/31] metag: Replace __get_cpu_var uses Christoph Lameter
2013-08-26 21:56 ` Christoph Lameter
2013-08-27 9:53 ` James Hogan
2013-08-26 21:56 ` [guv v2 28/31] arc: Replace __get_cpu_var uses throughout the kernel Christoph Lameter
[not found] ` <521C2A9F.3070400@synopsys.com>
[not found] ` <00000140c05d28b7-f0a2bc86-fe85-40f7-b627-32664cd616a4-000000@email.amazonses.com>
2013-08-28 4:24 ` Vineet Gupta
2013-08-28 13:46 ` Christoph Lameter
2013-08-26 21:56 ` [guv v2 27/31] sh: " Christoph Lameter
2013-09-02 21:35 ` [guv v2 04/31] net: Replace __get_cpu_var uses David Howells
2013-09-03 3:33 ` David Miller
2013-09-03 3:33 ` David Miller
2013-09-03 14:21 ` Christoph Lameter
2013-09-03 14:20 ` Christoph Lameter
2013-09-03 20:39 ` David Howells
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