linux-kernel - Re: [PATCH v2 04/44] trace/ring_buffer: handle 64bit aligned structs

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Message-ID: <50C5B8FC.3080003@imgtec.com>
Date:	Mon, 10 Dec 2012 10:27:08 +0000
From:	James Hogan <james.hogan@...tec.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	<linux-arch@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	"Arnd Bergmann" <arnd@...db.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"Ingo Molnar" <mingo@...hat.com>
Subject: Re: [PATCH v2 04/44] trace/ring_buffer: handle 64bit aligned structs

On 08/12/12 01:24, Steven Rostedt wrote:
> On Wed, 2012-12-05 at 16:08 +0000, James Hogan wrote:
>> Some 32 bit architectures have 64 bit struct alignment (for example
>> Meta which has 64 bit read/write instructions). These require 8 byte
>> alignment of event data too, so use CONFIG_HAVE_64BIT_ALIGNED_STRUCT
>> instead of CONFIG_64BIT to decide alignment, and align
>> buffer_data_page::data accordingly.
>>
>> Signed-off-by: James Hogan <james.hogan@...tec.com>
> 
> Acked-by: Steven Rostedt <rostedt@...dmis.org>

Thanks Steven

Cheers
James

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