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commit f13c13a00512 (powerpc: Stop using non-architected shared_proc field in lppaca) fixed a potential issue with shared/dedicated partition detection. The old method of detection relied on an unarchitected field (shared_proc), and this patch switched to using something architected (a non zero yield_count). Unfortunately the assertion in the Linux header that yield_count is only non zero on shared processor partitions is not true. It turns out dedicated processor partitions can increment yield_count and as such we falsely detect dedicated partitions as shared. Fix the comment, and switch back to using the old method. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>