powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size

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The generic hugetlbfs code can handle not finding the default huge page
size correctly. With HPAGE_SHIFT = 0 we see in dmesg:

  hugetlbfs: disabling because there are no supported hugepage sizes

bash-4.2# echo 30 > /proc/sys/vm/nr_hugepages
bash: echo: write error: Operation not supported

Fixes: 03bb2d6590 ("powerpc: get hugetlbpage handling more generic")
Reported-by: Chris Smart <chris@distroguy.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

...

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Aneesh Kumar K.V 2016-12-13 19:34:11 +05:30 • committed by Michael Ellerman

parent bf5ca68dd2

commit ff8b85796d

1 changed files with 0 additions and 3 deletions

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arch/powerpc/mm/hugetlbpage.c

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