powerpc/mm/dax: Fix the condition when checking if altmap vmemap can cross-boundary
Without this fix, the last subsection vmemmap can end up in memory even if the namespace is created with -M mem and has sufficient space in the altmap area. Fixes: cf387d96 ("libnvdimm/altmap: Track namespace boundaries in altmap") Signed-off-by:Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Tested-by:
Sachin Sant <sachinp@linux.ibm.com <mailto:sachinp@linux.ibm.com>> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230616110826.344417-6-aneesh.kumar@linux.ibm.com
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