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Miller" , Christian Borntraeger , Ingo Molnar , Palmer Dabbelt , Paul Walmsley , Catalin Marinas , Paul Mackerras , Andrew Morton , Longpeng , Will Deacon , Thomas Gleixner Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Hi Mike, On 3/18/20 3:06 PM, Mike Kravetz wrote: > With all hugetlb page processing done in a single file clean up code. > - Make code match desired semantics > - Update documentation with semantics > - Make all warnings and errors messages start with 'HugeTLB:'. > - Consistently name command line parsing routines. > - Add comments to code > - Describe some of the subtle interactions > - Describe semantics of command line arguments > > Signed-off-by: Mike Kravetz > --- > Documentation/admin-guide/mm/hugetlbpage.rst | 26 +++++++ > mm/hugetlb.c | 78 +++++++++++++++----- > 2 files changed, 87 insertions(+), 17 deletions(-) > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index cc85b4f156ca..2b9bf01db2b6 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -3214,8 +3238,15 @@ static int __init hugetlb_nrpages_setup(char *s) > > return 1; > } > -__setup("hugepages=", hugetlb_nrpages_setup); > +__setup("hugepages=", hugepages_setup); > > +/* > + * hugepagesz command line processing > + * A specific huge page size can only be specified once with hugepagesz. > + * hugepagesz is followed by hugepages on the commnad line. The global typo: command > + * variable 'parsed_valid_hugepagesz' is used to determine if prior > + * hugepagesz argument was valid. > + */ > static int __init hugepagesz_setup(char *s) > { > unsigned long long size; Does any of this need to be updated? (from Documentation/admin-guide/kernel-parameters.txt) hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages. On x86-64 and powerpc, this option can be specified multiple times interleaved with hugepages= to reserve huge pages of different sizes. Valid pages sizes on x86-64 are 2M (when the CPU supports "pse") and 1G (when the CPU supports the "pdpe1gb" cpuinfo flag). -- ~Randy