From: James Hogan <james.hogan@imgtec.com>
Date: Wed, 30 May 2012 11:11:19 +0000 (+0100)
Subject: trace/ring_buffer: handle 64bit aligned structs
X-Git-Tag: v3.9-rc1~7^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=649508f684751122aa302ab10f0f06cb4a88415b;p=pandora-kernel.git

trace/ring_buffer: handle 64bit aligned structs

Some 32 bit architectures require 64 bit values to be aligned (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_ACCESS instead of !CONFIG_64BIT ||
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS to decide alignment, and align
buffer_data_page::data accordingly.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org> (previous version subtly different)
---

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