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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-12-13 17:04:11 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2017-01-18 03:58:50 +0300
commitff8b85796dad5de869dc29903c95664fb444bbcc (patch)
treed87aa9d1295cd5a3a1a08fda094f23632b63ecb6 /arch/powerpc
parentbf5ca68dd2eef59a936969e802d811bdac4709c2 (diff)
downloadlinux-ff8b85796dad5de869dc29903c95664fb444bbcc.tar.xz
powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size
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: 03bb2d65900c ("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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/mm/hugetlbpage.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index f21f6b907d99..8797df11c51f 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -848,9 +848,6 @@ static int __init hugetlbpage_init(void)
else if (mmu_psize_defs[MMU_PAGE_2M].shift)
HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_2M].shift;
#endif
- else
- panic("%s: Unable to set default huge page size\n", __func__);
-
return 0;
}