powerpc/smp: Dont assume l2-cache to be superset of sibling

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Current code assumes that cpumask of cpus sharing a l2-cache mask will
always be a superset of cpu_sibling_mask.

Lets stop that assumption. cpu_l2_cache_mask is a superset of
cpu_sibling_mask if and only if shared_caches is set.

Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200913171038.GB11808@linux.vnet.ibm.com

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Srikar Dronamraju 2020-09-13 22:40:38 +05:30 • committed by Michael Ellerman

parent 3c6032a8fe

commit f6606cfdfb

1 changed files with 29 additions and 14 deletions

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arch/powerpc/kernel/smp.c

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