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17 August 2024, 15:42:30 UTC
Revision 5c3a121d52b30a1e53cdaa802fa1965fcd243164 authored by Vaidyanathan Srinivasan on 05 May 2008, 13:52:15 UTC, committed by Thomas Gleixner on 10 May 2008, 17:31:45 UTC 
x86: sysfs cpu?/topology is empty in 2.6.25 (32-bit Intel system)
 
System topology on intel based system needs to be exported
for non-numa case as well.

All parts of asm-i386/topology.h has come under
#ifdef CONFIG_NUMA after the merge to asm-x86/topology.h

/sys/devices/system/cpu/cpu?/topology/* is populated based on
ENABLE_TOPO_DEFINES

The sysfs cpu topology is not being populated on my dual socket
dual core xeon 5160 processor based (x86 32 bit) system.

CONFIG_NUMA is not set in my case yet the topology is relevant
and useful.

irqbalance daemon application depends on topology to build the
cpus and package list and it fails on Fedora9 beta since the
sysfs topology was not being populated in the 2.6.25 kernel.

I am not sure if it was intentional to not define ENABLE_TOPO_DEFINES
for non-numa systems.

This fix has been tested on the above mentioned dual core, dual socket
system.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org
1 parent eb2b4e6
History
Tip revision: 5c3a121d52b30a1e53cdaa802fa1965fcd243164 authored by Vaidyanathan Srinivasan on 05 May 2008, 13:52:15 UTC
x86: sysfs cpu?/topology is empty in 2.6.25 (32-bit Intel system)
Tip revision: 5c3a121
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