tree e7bfe98c1cbf21a871fee2c25640898c7b60bcfb
parent 01a08546af311c065f34727787dd0cc8dc0c216f
author Heiko Carstens <heiko.carstens@de.ibm.com> 1283243297 +0200
committer Ingo Molnar <mingo@elte.hu> 1284057685 +0200

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>