From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 31 Aug 2010 08:28:17 +0000 (+0200)
Subject: topology/sysfs: Provide book id and siblings attributes
X-Git-Tag: v2.6.37-rc1~213^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b40d8ed4e42c79f8ed1cf345eed0888f4a2f0678;p=pandora-kernel.git

topology/sysfs: Provide book id and siblings attributes

Create attributes:

 /sys/devices/system/cpu/cpuX/topology/book_id
 /sys/devices/system/cpu/cpuX/topology/book_siblings

which show the book id and the book siblings of a cpu.

Unlike the attributes for SMT and MC these attributes are only present if
CONFIG_SCHED_BOOK is set. There is no reason to pollute sysfs for every
architecture with unused attributes.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100831082844.435648457@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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