Joerg Roedel 7a27ef5e83 x86/mm/64: Update comment in preallocate_vmalloc_pages() ...

The comment explaining why 4-level systems only need to allocate on
the P4D level caused some confustion. Update it to better explain why
on 4-level systems the allocation on PUD level is necessary.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200814151947.26229-3-joro@8bytes.org

2020-08-15 13:56:16 +02:00

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