Re: [PATCH 09/10] ppc64: Convert cpu_sibling_map to a per_cpu data array (v3)

Stephen Rothwell
2007-09-17T06:28:58Z

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On Tue, 11 Sep 2007 18:56:53 -0700 travis@sgi.com wrote:
>
> Convert cpu_sibling_map to a per_cpu cpumask_t array for the ppc64
> architecture. This fixes build errors in block/blktrace.c and
> kernel/sched.c when CONFIG_SCHED_SMT is defined.
>
> Note: these changes have not been built nor tested.

After applying all 10 patches, the ppc64_defconfig builds but:

vmlinux is larger:

text data bss dec hex filename
7705776 1756984 504624 9967384 981718 ppc64/vmlinux
7706228 1757120 504624 9967972 981964 trav.bld/vmlinux

the topology (on my POWERPC5+ box) is not correct:

cpu0/topology/thread_siblings:0000000f
cpu1/topology/thread_siblings:0000000f
cpu2/topology/thread_siblings:0000000f
cpu3/topology/thread_siblings:0000000f

it used to be:

cpu0/topology/thread_siblings:00000003
cpu1/topology/thread_siblings:00000003
cpu2/topology/thread_siblings:0000000c
cpu3/topology/thread_siblings:0000000c

Similarly on my iSeries box, the topology is displayed as above
while it used to be:

cpu0/topology/thread_siblings:00000001
cpu1/topology/thread_siblings:00000002
cpu2/topology/thread_siblings:00000004
cpu3/topology/thread_siblings:00000008

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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