Messages in this thread | | | From | "Aneesh Kumar K.V" <> | Subject | Re: [PATCH v2] powerpc/mm: Implemented default_hugepagesz verification for powerpc | Date | Fri, 21 Jul 2017 12:35:08 +0530 |
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Victor Aoqui <victora@linux.vnet.ibm.com> writes:
> Implemented default hugepage size verification (default_hugepagesz=) > in order to allow allocation of defined number of pages (hugepages=) > only for supported hugepage sizes. > > Signed-off-by: Victor Aoqui <victora@linux.vnet.ibm.com> > --- > v2: > > - Renamed default_hugepage_setup_sz function to hugetlb_default_size_setup; > > - Added powerpc string to error message. > > arch/powerpc/mm/hugetlbpage.c | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) > > diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c > index e1bf5ca..3a142fe 100644 > --- a/arch/powerpc/mm/hugetlbpage.c > +++ b/arch/powerpc/mm/hugetlbpage.c > @@ -780,6 +780,21 @@ static int __init hugepage_setup_sz(char *str) > } > __setup("hugepagesz=", hugepage_setup_sz); > > +static int __init hugetlb_default_size_setup(char *str) > +{ > + unsigned long long size; > + > + size = memparse(str, &str); > + > + if (add_huge_page_size(size) != 0) { > + hugetlb_bad_size(); > + pr_err("Invalid powerpc default huge page size specified(%llu)\n", size); > + } > + > + return 1; > +} > +__setup("default_hugepagesz=", hugetlb_default_size_setup); > +
this means we don't core the core function hugetlb_default_setup(). Hence the value default_hstate_size = 0 which means different value for default_hstate_idx. We use that for hugetlbfs mount.
> struct kmem_cache *hugepte_cache; > static int __init hugetlbpage_init(void) > { > -- > 1.8.3.1
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